269b47917abb936a0444733b3dc14fa7f6b7655f
[ncurses.git] / aclocal.m4
1 dnl***************************************************************************
2 dnl Copyright 2018-2019,2020 Thomas E. Dickey                                *
3 dnl Copyright 1998-2017,2018 Free Software Foundation, Inc.                  *
4 dnl                                                                          *
5 dnl Permission is hereby granted, free of charge, to any person obtaining a  *
6 dnl copy of this software and associated documentation files (the            *
7 dnl "Software"), to deal in the Software without restriction, including      *
8 dnl without limitation the rights to use, copy, modify, merge, publish,      *
9 dnl distribute, distribute with modifications, sublicense, and/or sell       *
10 dnl copies of the Software, and to permit persons to whom the Software is    *
11 dnl furnished to do so, subject to the following conditions:                 *
12 dnl                                                                          *
13 dnl The above copyright notice and this permission notice shall be included  *
14 dnl in all copies or substantial portions of the Software.                   *
15 dnl                                                                          *
16 dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
17 dnl OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
18 dnl MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
19 dnl IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
20 dnl DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
21 dnl OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
22 dnl THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
23 dnl                                                                          *
24 dnl Except as contained in this notice, the name(s) of the above copyright   *
25 dnl holders shall not be used in advertising or otherwise to promote the     *
26 dnl sale, use or other dealings in this Software without prior written       *
27 dnl authorization.                                                           *
28 dnl***************************************************************************
29 dnl
30 dnl Author: Thomas E. Dickey 1995-on
31 dnl
32 dnl $Id: aclocal.m4,v 1.916 2020/07/04 23:31:15 tom Exp $
33 dnl Macros used in NCURSES auto-configuration script.
34 dnl
35 dnl These macros are maintained separately from NCURSES.  The copyright on
36 dnl this file applies to the aggregation of macros and does not affect use of
37 dnl these macros in other applications.
38 dnl
39 dnl See these pages for additional information:
40 dnl             https://invisible-island.net/autoconf/
41 dnl             https://invisible-island.net/autoconf/my-autoconf.html
42 dnl
43 dnl ---------------------------------------------------------------------------
44 dnl ---------------------------------------------------------------------------
45 dnl AM_LANGINFO_CODESET version: 5 updated: 2020/03/10 18:53:47
46 dnl -------------------
47 dnl Inserted as requested by gettext 0.10.40
48 dnl File from /usr/share/aclocal
49 dnl codeset.m4
50 dnl ====================
51 dnl serial AM1
52 dnl
53 dnl From Bruno Haible.
54 AC_DEFUN([AM_LANGINFO_CODESET],
55 [
56 AC_CACHE_CHECK([for nl_langinfo and CODESET], am_cv_langinfo_codeset,
57         [AC_TRY_LINK([#include <langinfo.h>],
58         [char* cs = nl_langinfo(CODESET); (void)cs],
59         am_cv_langinfo_codeset=yes,
60         am_cv_langinfo_codeset=no)
61         ])
62         if test $am_cv_langinfo_codeset = yes; then
63                 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
64                 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
65         fi
66 ])dnl
67 dnl ---------------------------------------------------------------------------
68 dnl CF_ABI_DEFAULTS version: 2 updated: 2015/06/06 13:49:58
69 dnl ---------------
70 dnl Provide configure-script defaults for different ncurses ABIs.
71 AC_DEFUN([CF_ABI_DEFAULTS],[
72 AC_REQUIRE([CF_NCURSES_WITH_ABI_VERSION])
73 case x$cf_cv_abi_version in
74 (x[[6789]])
75         cf_dft_ext_colors=yes
76         cf_dft_ext_const=yes
77         cf_dft_ext_mouse=yes
78         cf_dft_ext_putwin=yes
79         cf_dft_ext_spfuncs=yes
80         cf_dft_filter_syms=yes
81         cf_dft_chtype=uint32_t
82         cf_dft_mmask_t=uint32_t
83         cf_dft_interop=yes
84         cf_dft_tparm_arg=intptr_t
85         cf_dft_with_lp64=yes
86         ;;
87 (*)
88         cf_dft_ext_colors=no
89         cf_dft_ext_const=no
90         cf_dft_ext_mouse=no
91         cf_dft_ext_putwin=no
92         cf_dft_ext_spfuncs=no
93         cf_dft_filter_syms=no
94         cf_dft_chtype=auto
95         cf_dft_mmask_t=auto
96         cf_dft_interop=no
97         cf_dft_tparm_arg=long
98         cf_dft_with_lp64=no
99         ;;
100 esac
101 ])dnl
102 dnl ---------------------------------------------------------------------------
103 dnl CF_ACVERSION_CHECK version: 5 updated: 2014/06/04 19:11:49
104 dnl ------------------
105 dnl Conditionally generate script according to whether we're using a given autoconf.
106 dnl
107 dnl $1 = version to compare against
108 dnl $2 = code to use if AC_ACVERSION is at least as high as $1.
109 dnl $3 = code to use if AC_ACVERSION is older than $1.
110 define([CF_ACVERSION_CHECK],
111 [
112 ifdef([AC_ACVERSION], ,[ifdef([AC_AUTOCONF_VERSION],[m4_copy([AC_AUTOCONF_VERSION],[AC_ACVERSION])],[m4_copy([m4_PACKAGE_VERSION],[AC_ACVERSION])])])dnl
113 ifdef([m4_version_compare],
114 [m4_if(m4_version_compare(m4_defn([AC_ACVERSION]), [$1]), -1, [$3], [$2])],
115 [CF_ACVERSION_COMPARE(
116 AC_PREREQ_CANON(AC_PREREQ_SPLIT([$1])),
117 AC_PREREQ_CANON(AC_PREREQ_SPLIT(AC_ACVERSION)), AC_ACVERSION, [$2], [$3])])])dnl
118 dnl ---------------------------------------------------------------------------
119 dnl CF_ACVERSION_COMPARE version: 3 updated: 2012/10/03 18:39:53
120 dnl --------------------
121 dnl CF_ACVERSION_COMPARE(MAJOR1, MINOR1, TERNARY1,
122 dnl                      MAJOR2, MINOR2, TERNARY2,
123 dnl                      PRINTABLE2, not FOUND, FOUND)
124 define([CF_ACVERSION_COMPARE],
125 [ifelse(builtin([eval], [$2 < $5]), 1,
126 [ifelse([$8], , ,[$8])],
127 [ifelse([$9], , ,[$9])])])dnl
128 dnl ---------------------------------------------------------------------------
129 dnl CF_ADA_INCLUDE_DIRS version: 8 updated: 2013/10/14 04:24:07
130 dnl -------------------
131 dnl Construct the list of include-options for the C programs in the Ada95
132 dnl binding.
133 AC_DEFUN([CF_ADA_INCLUDE_DIRS],
134 [
135 ACPPFLAGS="-I. -I../include -I../../include $ACPPFLAGS"
136 if test "$srcdir" != "."; then
137         ACPPFLAGS="-I\${srcdir}/../../include $ACPPFLAGS"
138 fi
139 if test "$GCC" != yes; then
140         ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
141 elif test "$includedir" != "/usr/include"; then
142         if test "$includedir" = '${prefix}/include' ; then
143                 if test x$prefix != x/usr ; then
144                         ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
145                 fi
146         else
147                 ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
148         fi
149 fi
150 AC_SUBST(ACPPFLAGS)
151 ])dnl
152 dnl ---------------------------------------------------------------------------
153 dnl CF_ADD_ADAFLAGS version: 1 updated: 2010/06/19 15:22:18
154 dnl ---------------
155 dnl Add to $ADAFLAGS, which is substituted into makefile and scripts.
156 AC_DEFUN([CF_ADD_ADAFLAGS],[
157         ADAFLAGS="$ADAFLAGS $1"
158         AC_SUBST(ADAFLAGS)
159 ])dnl
160 dnl ---------------------------------------------------------------------------
161 dnl CF_ADD_CXXFLAGS version: 1 updated: 2020/04/04 16:16:13
162 dnl ---------------
163 dnl Copy non-preprocessor flags to $CXXFLAGS, preprocessor flags to $CPPFLAGS
164 dnl The second parameter if given makes this macro verbose.
165 dnl
166 dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
167 dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
168 dnl confused by the quotes (which require backslashes to keep them usable).
169 AC_DEFUN([CF_ADD_CXXFLAGS],
170 [
171 cf_save_CXXFLAGS="$CFLAGS"
172 CFLAGS="$CXXFLAGS"
173 CF_ADD_CFLAGS($1 ifelse($2,,,[,$2]))
174 CXXFLAGS="$CFLAGS"
175 CFLAGS="$cf_save_CXXFLAGS"
176 ])dnl
177 dnl ---------------------------------------------------------------------------
178 dnl CF_ADD_CFLAGS version: 14 updated: 2020/04/04 16:16:13
179 dnl -------------
180 dnl Copy non-preprocessor flags to $CFLAGS, preprocessor flags to $CPPFLAGS
181 dnl $1 = flags to add
182 dnl $2 = if given makes this macro verbose.
183 dnl
184 dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
185 dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
186 dnl confused by the quotes (which require backslashes to keep them usable).
187 AC_DEFUN([CF_ADD_CFLAGS],
188 [
189 cf_fix_cppflags=no
190 cf_new_cflags=
191 cf_new_cppflags=
192 cf_new_extra_cppflags=
193
194 for cf_add_cflags in $1
195 do
196 case $cf_fix_cppflags in
197 (no)
198         case $cf_add_cflags in
199         (-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C)
200                 case $cf_add_cflags in
201                 (-D*)
202                         cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^-D[[^=]]*='\''\"[[^"]]*//'`
203
204                         test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
205                                 && test -z "${cf_tst_cflags}" \
206                                 && cf_fix_cppflags=yes
207
208                         if test $cf_fix_cppflags = yes ; then
209                                 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
210                                 continue
211                         elif test "${cf_tst_cflags}" = "\"'" ; then
212                                 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
213                                 continue
214                         fi
215                         ;;
216                 esac
217                 case "$CPPFLAGS" in
218                 (*$cf_add_cflags)
219                         ;;
220                 (*)
221                         case $cf_add_cflags in
222                         (-D*)
223                                 cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
224                                 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,$cf_tst_cppflags)
225                                 ;;
226                         esac
227                         CF_APPEND_TEXT(cf_new_cppflags,$cf_add_cflags)
228                         ;;
229                 esac
230                 ;;
231         (*)
232                 CF_APPEND_TEXT(cf_new_cflags,$cf_add_cflags)
233                 ;;
234         esac
235         ;;
236 (yes)
237         CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
238
239         cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^[[^"]]*"'\''//'`
240
241         test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
242                 && test -z "${cf_tst_cflags}" \
243                 && cf_fix_cppflags=no
244         ;;
245 esac
246 done
247
248 if test -n "$cf_new_cflags" ; then
249         ifelse([$2],,,[CF_VERBOSE(add to \$CFLAGS $cf_new_cflags)])
250         CF_APPEND_TEXT(CFLAGS,$cf_new_cflags)
251 fi
252
253 if test -n "$cf_new_cppflags" ; then
254         ifelse([$2],,,[CF_VERBOSE(add to \$CPPFLAGS $cf_new_cppflags)])
255         CF_APPEND_TEXT(CPPFLAGS,$cf_new_cppflags)
256 fi
257
258 if test -n "$cf_new_extra_cppflags" ; then
259         ifelse([$2],,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)])
260         CF_APPEND_TEXT(EXTRA_CPPFLAGS,$cf_new_extra_cppflags)
261 fi
262
263 AC_SUBST(EXTRA_CPPFLAGS)
264
265 ])dnl
266 dnl ---------------------------------------------------------------------------
267 dnl CF_ADD_INCDIR version: 15 updated: 2018/06/20 20:23:13
268 dnl -------------
269 dnl Add an include-directory to $CPPFLAGS.  Don't add /usr/include, since it's
270 dnl redundant.  We don't normally need to add -I/usr/local/include for gcc,
271 dnl but old versions (and some misinstalled ones) need that.  To make things
272 dnl worse, gcc 3.x may give error messages if -I/usr/local/include is added to
273 dnl the include-path).
274 AC_DEFUN([CF_ADD_INCDIR],
275 [
276 if test -n "$1" ; then
277   for cf_add_incdir in $1
278   do
279         while test $cf_add_incdir != /usr/include
280         do
281           if test -d $cf_add_incdir
282           then
283                 cf_have_incdir=no
284                 if test -n "$CFLAGS$CPPFLAGS" ; then
285                   # a loop is needed to ensure we can add subdirs of existing dirs
286                   for cf_test_incdir in $CFLAGS $CPPFLAGS ; do
287                         if test ".$cf_test_incdir" = ".-I$cf_add_incdir" ; then
288                           cf_have_incdir=yes; break
289                         fi
290                   done
291                 fi
292
293                 if test "$cf_have_incdir" = no ; then
294                   if test "$cf_add_incdir" = /usr/local/include ; then
295                         if test "$GCC" = yes
296                         then
297                           cf_save_CPPFLAGS=$CPPFLAGS
298                           CF_APPEND_TEXT(CPPFLAGS,-I$cf_add_incdir)
299                           AC_TRY_COMPILE([#include <stdio.h>],
300                                   [printf("Hello")],
301                                   [],
302                                   [cf_have_incdir=yes])
303                           CPPFLAGS=$cf_save_CPPFLAGS
304                         fi
305                   fi
306                 fi
307
308                 if test "$cf_have_incdir" = no ; then
309                   CF_VERBOSE(adding $cf_add_incdir to include-path)
310                   ifelse([$2],,CPPFLAGS,[$2])="$ifelse([$2],,CPPFLAGS,[$2]) -I$cf_add_incdir"
311
312                   cf_top_incdir=`echo $cf_add_incdir | sed -e 's%/include/.*$%/include%'`
313                   test "$cf_top_incdir" = "$cf_add_incdir" && break
314                   cf_add_incdir="$cf_top_incdir"
315                 else
316                   break
317                 fi
318           else
319                 break
320           fi
321         done
322   done
323 fi
324 ])dnl
325 dnl ---------------------------------------------------------------------------
326 dnl CF_ADD_LIB version: 2 updated: 2010/06/02 05:03:05
327 dnl ----------
328 dnl Add a library, used to enforce consistency.
329 dnl
330 dnl $1 = library to add, without the "-l"
331 dnl $2 = variable to update (default $LIBS)
332 AC_DEFUN([CF_ADD_LIB],[CF_ADD_LIBS(-l$1,ifelse($2,,LIBS,[$2]))])dnl
333 dnl ---------------------------------------------------------------------------
334 dnl CF_ADD_LIBDIR version: 10 updated: 2015/04/18 08:56:57
335 dnl -------------
336 dnl     Adds to the library-path
337 dnl
338 dnl     Some machines have trouble with multiple -L options.
339 dnl
340 dnl $1 is the (list of) directory(s) to add
341 dnl $2 is the optional name of the variable to update (default LDFLAGS)
342 dnl
343 AC_DEFUN([CF_ADD_LIBDIR],
344 [
345 if test -n "$1" ; then
346         for cf_add_libdir in $1
347         do
348                 if test $cf_add_libdir = /usr/lib ; then
349                         :
350                 elif test -d $cf_add_libdir
351                 then
352                         cf_have_libdir=no
353                         if test -n "$LDFLAGS$LIBS" ; then
354                                 # a loop is needed to ensure we can add subdirs of existing dirs
355                                 for cf_test_libdir in $LDFLAGS $LIBS ; do
356                                         if test ".$cf_test_libdir" = ".-L$cf_add_libdir" ; then
357                                                 cf_have_libdir=yes; break
358                                         fi
359                                 done
360                         fi
361                         if test "$cf_have_libdir" = no ; then
362                                 CF_VERBOSE(adding $cf_add_libdir to library-path)
363                                 ifelse([$2],,LDFLAGS,[$2])="-L$cf_add_libdir $ifelse([$2],,LDFLAGS,[$2])"
364                         fi
365                 fi
366         done
367 fi
368 ])dnl
369 dnl ---------------------------------------------------------------------------
370 dnl CF_ADD_LIBS version: 3 updated: 2019/11/02 16:47:33
371 dnl -----------
372 dnl Add one or more libraries, used to enforce consistency.  Libraries are
373 dnl prepended to an existing list, since their dependencies are assumed to
374 dnl already exist in the list.
375 dnl
376 dnl $1 = libraries to add, with the "-l", etc.
377 dnl $2 = variable to update (default $LIBS)
378 AC_DEFUN([CF_ADD_LIBS],[
379 cf_add_libs="[$]ifelse($2,,LIBS,[$2])"
380 # reverse order
381 cf_add_0lib=
382 for cf_add_1lib in $1; do cf_add_0lib="$cf_add_1lib $cf_add_0lib"; done
383 # filter duplicates
384 for cf_add_1lib in $cf_add_0lib; do
385         for cf_add_2lib in $cf_add_libs; do
386                 if test "x$cf_add_1lib" = "x$cf_add_2lib"; then
387                         cf_add_1lib=
388                         break
389                 fi
390         done
391         test -n "$cf_add_1lib" && cf_add_libs="$cf_add_1lib $cf_add_libs"
392 done
393 ifelse($2,,LIBS,[$2])="$cf_add_libs"
394 ])dnl
395 dnl ---------------------------------------------------------------------------
396 dnl CF_ADD_SUBDIR_PATH version: 4 updated: 2013/10/08 17:47:05
397 dnl ------------------
398 dnl Append to a search-list for a nonstandard header/lib-file
399 dnl     $1 = the variable to return as result
400 dnl     $2 = the package name
401 dnl     $3 = the subdirectory, e.g., bin, include or lib
402 dnl $4 = the directory under which we will test for subdirectories
403 dnl $5 = a directory that we do not want $4 to match
404 AC_DEFUN([CF_ADD_SUBDIR_PATH],
405 [
406 test "x$4" != "x$5" && \
407 test -d "$4" && \
408 ifelse([$5],NONE,,[(test -z "$5" || test x$5 = xNONE || test "x$4" != "x$5") &&]) {
409         test -n "$verbose" && echo "    ... testing for $3-directories under $4"
410         test -d $4/$3 &&          $1="[$]$1 $4/$3"
411         test -d $4/$3/$2 &&       $1="[$]$1 $4/$3/$2"
412         test -d $4/$3/$2/$3 &&    $1="[$]$1 $4/$3/$2/$3"
413         test -d $4/$2/$3 &&       $1="[$]$1 $4/$2/$3"
414         test -d $4/$2/$3/$2 &&    $1="[$]$1 $4/$2/$3/$2"
415 }
416 ])dnl
417 dnl ---------------------------------------------------------------------------
418 dnl CF_APPEND_TEXT version: 1 updated: 2017/02/25 18:58:55
419 dnl --------------
420 dnl use this macro for appending text without introducing an extra blank at
421 dnl the beginning
422 define([CF_APPEND_TEXT],
423 [
424         test -n "[$]$1" && $1="[$]$1 "
425         $1="[$]{$1}$2"
426 ])dnl
427 dnl ---------------------------------------------------------------------------
428 dnl CF_ARG_DISABLE version: 3 updated: 1999/03/30 17:24:31
429 dnl --------------
430 dnl Allow user to disable a normally-on option.
431 AC_DEFUN([CF_ARG_DISABLE],
432 [CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl
433 dnl ---------------------------------------------------------------------------
434 dnl CF_ARG_ENABLE version: 3 updated: 1999/03/30 17:24:31
435 dnl -------------
436 dnl Allow user to enable a normally-off option.
437 AC_DEFUN([CF_ARG_ENABLE],
438 [CF_ARG_OPTION($1,[$2],[$3],[$4],no)])dnl
439 dnl ---------------------------------------------------------------------------
440 dnl CF_ARG_OPTION version: 5 updated: 2015/05/10 19:52:14
441 dnl -------------
442 dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
443 dnl values.
444 dnl
445 dnl Parameters:
446 dnl $1 = option name
447 dnl $2 = help-string
448 dnl $3 = action to perform if option is not default
449 dnl $4 = action if perform if option is default
450 dnl $5 = default option value (either 'yes' or 'no')
451 AC_DEFUN([CF_ARG_OPTION],
452 [AC_ARG_ENABLE([$1],[$2],[test "$enableval" != ifelse([$5],no,yes,no) && enableval=ifelse([$5],no,no,yes)
453         if test "$enableval" != "$5" ; then
454 ifelse([$3],,[    :]dnl
455 ,[    $3]) ifelse([$4],,,[
456         else
457                 $4])
458         fi],[enableval=$5 ifelse([$4],,,[
459         $4
460 ])dnl
461 ])])dnl
462 dnl ---------------------------------------------------------------------------
463 dnl CF_AR_FLAGS version: 7 updated: 2020/04/04 11:37:29
464 dnl -----------
465 dnl Check for suitable "ar" (archiver) options for updating an archive.
466 dnl
467 dnl In particular, handle some obsolete cases where the "-" might be omitted,
468 dnl as well as a workaround for breakage of make's archive rules by the GNU
469 dnl binutils "ar" program.
470 AC_DEFUN([CF_AR_FLAGS],[
471 AC_REQUIRE([CF_PROG_AR])
472
473 AC_CACHE_CHECK(for options to update archives, cf_cv_ar_flags,[
474         case $cf_cv_system_name in
475         (*-msvc*)
476                 cf_cv_ar_flags=''
477                 cat >mk_static_lib.sh <<-EOF
478                 #!$SHELL
479                 MSVC_BIN="[$]AR"
480                 out="\[$]1"
481                 shift
482                 exec \[$]MSVC_BIN -out:"\[$]out" \[$]@
483                 EOF
484                 chmod +x mk_static_lib.sh
485                 AR=`pwd`/mk_static_lib.sh
486                 ;;
487         (*)
488                 cf_cv_ar_flags=unknown
489                 for cf_ar_flags in -curvU -curv curv -crv crv -cqv cqv -rv rv
490                 do
491
492                         # check if $ARFLAGS already contains this choice
493                         if test "x$ARFLAGS" != "x" ; then
494                                 cf_check_ar_flags=`echo "x$ARFLAGS" | sed -e "s/$cf_ar_flags\$//" -e "s/$cf_ar_flags / /"`
495                                 if test "x$ARFLAGS" != "$cf_check_ar_flags" ; then
496                                         cf_cv_ar_flags=
497                                         break
498                                 fi
499                         fi
500
501                         rm -f conftest.$ac_cv_objext
502                         rm -f conftest.a
503
504                         cat >conftest.$ac_ext <<EOF
505 #line __oline__ "configure"
506 int     testdata[[3]] = { 123, 456, 789 };
507 EOF
508                         if AC_TRY_EVAL(ac_compile) ; then
509                                 echo "$AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext" >&AC_FD_CC
510                                 $AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext 2>&AC_FD_CC 1>/dev/null
511                                 if test -f conftest.a ; then
512                                         cf_cv_ar_flags=$cf_ar_flags
513                                         break
514                                 fi
515                         else
516                                 CF_VERBOSE(cannot compile test-program)
517                                 break
518                         fi
519                 done
520                 rm -f conftest.a conftest.$ac_ext conftest.$ac_cv_objext
521                 ;;
522         esac
523 ])
524
525 if test -n "$ARFLAGS" ; then
526         if test -n "$cf_cv_ar_flags" ; then
527                 ARFLAGS="$ARFLAGS $cf_cv_ar_flags"
528         fi
529 else
530         ARFLAGS=$cf_cv_ar_flags
531 fi
532
533 AC_SUBST(ARFLAGS)
534 ])
535 dnl ---------------------------------------------------------------------------
536 dnl CF_AWK_BIG_PRINTF version: 5 updated: 2015/04/17 21:13:04
537 dnl -----------------
538 dnl Check if awk can handle big strings using printf.  Some older versions of
539 dnl awk choke on large strings passed via "%s".
540 dnl
541 dnl $1 = desired string size
542 dnl $2 = variable to set with result
543 AC_DEFUN([CF_AWK_BIG_PRINTF],
544 [
545         case x$AWK in
546         (x)
547                 eval $2=no
548                 ;;
549         (*)
550                 if ( ${AWK} 'BEGIN { xx = "x"; while (length(xx) < $1) { xx = xx "x"; }; printf("%s\n", xx); }' 2>/dev/null \
551                         | $AWK '{ printf "%d\n", length([$]0); }' 2>/dev/null | $AWK 'BEGIN { eqls=0; recs=0; } { recs++; if ([$]0 == 12000) eqls++; } END { if (recs != 1 || eqls != 1) exit 1; }' 2>/dev/null >/dev/null ) ; then
552                         eval $2=yes
553                 else
554                         eval $2=no
555                 fi
556                 ;;
557         esac
558 ])dnl
559 dnl ---------------------------------------------------------------------------
560 dnl CF_BOOL_DECL version: 8 updated: 2004/01/30 15:51:18
561 dnl ------------
562 dnl Test if 'bool' is a builtin type in the configured C++ compiler.  Some
563 dnl older compilers (e.g., gcc 2.5.8) don't support 'bool' directly; gcc
564 dnl 2.6.3 does, in anticipation of the ANSI C++ standard.
565 dnl
566 dnl Treat the configuration-variable specially here, since we're directly
567 dnl substituting its value (i.e., 1/0).
568 dnl
569 dnl $1 is the shell variable to store the result in, if not $cv_cv_builtin_bool
570 AC_DEFUN([CF_BOOL_DECL],
571 [
572 AC_MSG_CHECKING(if we should include stdbool.h)
573
574 AC_CACHE_VAL(cf_cv_header_stdbool_h,[
575         AC_TRY_COMPILE([],[bool foo = false],
576                 [cf_cv_header_stdbool_h=0],
577                 [AC_TRY_COMPILE([
578 #ifndef __BEOS__
579 #include <stdbool.h>
580 #endif
581 ],[bool foo = false],
582                         [cf_cv_header_stdbool_h=1],
583                         [cf_cv_header_stdbool_h=0])])])
584
585 if test "$cf_cv_header_stdbool_h" = 1
586 then    AC_MSG_RESULT(yes)
587 else    AC_MSG_RESULT(no)
588 fi
589
590 AC_MSG_CHECKING([for builtin bool type])
591
592 AC_CACHE_VAL(ifelse($1,,cf_cv_builtin_bool,[$1]),[
593         AC_TRY_COMPILE([
594 #include <stdio.h>
595 #include <sys/types.h>
596 ],[bool x = false],
597                 [ifelse($1,,cf_cv_builtin_bool,[$1])=1],
598                 [ifelse($1,,cf_cv_builtin_bool,[$1])=0])
599         ])
600
601 if test "$ifelse($1,,cf_cv_builtin_bool,[$1])" = 1
602 then    AC_MSG_RESULT(yes)
603 else    AC_MSG_RESULT(no)
604 fi
605 ])dnl
606 dnl ---------------------------------------------------------------------------
607 dnl CF_BOOL_SIZE version: 15 updated: 2017/01/21 11:06:25
608 dnl ------------
609 dnl Test for the size of 'bool' in the configured C++ compiler (e.g., a type).
610 dnl Don't bother looking for bool.h, since it's been deprecated.
611 dnl
612 dnl If the current compiler is C rather than C++, we get the bool definition
613 dnl from <stdbool.h>.
614 AC_DEFUN([CF_BOOL_SIZE],
615 [
616 AC_MSG_CHECKING([for size of bool])
617 AC_CACHE_VAL(cf_cv_type_of_bool,[
618         rm -f cf_test.out
619         AC_TRY_RUN([
620 #include <stdlib.h>
621 #include <stdio.h>
622
623 #if defined(__cplusplus)
624
625 #ifdef HAVE_GXX_BUILTIN_H
626 #include <g++/builtin.h>
627 #elif HAVE_GPP_BUILTIN_H
628 #include <gpp/builtin.h>
629 #elif HAVE_BUILTIN_H
630 #include <builtin.h>
631 #endif
632
633 #else
634
635 #if $cf_cv_header_stdbool_h
636 #include <stdbool.h>
637 #endif
638
639 #endif
640
641 int main(void)
642 {
643         FILE *fp = fopen("cf_test.out", "w");
644         if (fp != 0) {
645                 bool x = true;
646                 if ((bool)(-x) >= 0)
647                         fputs("unsigned ", fp);
648                 if (sizeof(x) == sizeof(int))       fputs("int",  fp);
649                 else if (sizeof(x) == sizeof(char)) fputs("char", fp);
650                 else if (sizeof(x) == sizeof(short))fputs("short",fp);
651                 else if (sizeof(x) == sizeof(long)) fputs("long", fp);
652                 fclose(fp);
653         }
654         ${cf_cv_main_return:-return}(0);
655 }
656                 ],
657                 [cf_cv_type_of_bool=`cat cf_test.out`
658                  if test -z "$cf_cv_type_of_bool"; then
659                    cf_cv_type_of_bool=unknown
660                  fi],
661                 [cf_cv_type_of_bool=unknown],
662                 [cf_cv_type_of_bool=unknown])
663         ])
664         rm -f cf_test.out
665 AC_MSG_RESULT($cf_cv_type_of_bool)
666 if test "$cf_cv_type_of_bool" = unknown ; then
667         case .$NCURSES_BOOL in
668         (.auto|.) NCURSES_BOOL=unsigned;;
669         esac
670         AC_MSG_WARN(Assuming $NCURSES_BOOL for type of bool)
671         cf_cv_type_of_bool=$NCURSES_BOOL
672 fi
673 ])dnl
674 dnl ---------------------------------------------------------------------------
675 dnl CF_BUILD_CC version: 8 updated: 2018/01/04 20:31:04
676 dnl -----------
677 dnl If we're cross-compiling, allow the user to override the tools and their
678 dnl options.  The configure script is oriented toward identifying the host
679 dnl compiler, etc., but we need a build compiler to generate parts of the
680 dnl source.
681 dnl
682 dnl $1 = default for $CPPFLAGS
683 dnl $2 = default for $LIBS
684 AC_DEFUN([CF_BUILD_CC],[
685 CF_ACVERSION_CHECK(2.52,,
686         [AC_REQUIRE([CF_PROG_EXT])])
687 if test "$cross_compiling" = yes ; then
688
689         # defaults that we might want to override
690         : ${BUILD_CFLAGS:=''}
691         : ${BUILD_CPPFLAGS:='ifelse([$1],,,[$1])'}
692         : ${BUILD_LDFLAGS:=''}
693         : ${BUILD_LIBS:='ifelse([$2],,,[$2])'}
694         : ${BUILD_EXEEXT:='$x'}
695         : ${BUILD_OBJEXT:='o'}
696
697         AC_ARG_WITH(build-cc,
698                 [  --with-build-cc=XXX     the build C compiler ($BUILD_CC)],
699                 [BUILD_CC="$withval"],
700                 [AC_CHECK_PROGS(BUILD_CC, [gcc clang c99 c89 cc cl],none)])
701         AC_MSG_CHECKING(for native build C compiler)
702         AC_MSG_RESULT($BUILD_CC)
703
704         AC_MSG_CHECKING(for native build C preprocessor)
705         AC_ARG_WITH(build-cpp,
706                 [  --with-build-cpp=XXX    the build C preprocessor ($BUILD_CPP)],
707                 [BUILD_CPP="$withval"],
708                 [BUILD_CPP='${BUILD_CC} -E'])
709         AC_MSG_RESULT($BUILD_CPP)
710
711         AC_MSG_CHECKING(for native build C flags)
712         AC_ARG_WITH(build-cflags,
713                 [  --with-build-cflags=XXX the build C compiler-flags ($BUILD_CFLAGS)],
714                 [BUILD_CFLAGS="$withval"])
715         AC_MSG_RESULT($BUILD_CFLAGS)
716
717         AC_MSG_CHECKING(for native build C preprocessor-flags)
718         AC_ARG_WITH(build-cppflags,
719                 [  --with-build-cppflags=XXX the build C preprocessor-flags ($BUILD_CPPFLAGS)],
720                 [BUILD_CPPFLAGS="$withval"])
721         AC_MSG_RESULT($BUILD_CPPFLAGS)
722
723         AC_MSG_CHECKING(for native build linker-flags)
724         AC_ARG_WITH(build-ldflags,
725                 [  --with-build-ldflags=XXX the build linker-flags ($BUILD_LDFLAGS)],
726                 [BUILD_LDFLAGS="$withval"])
727         AC_MSG_RESULT($BUILD_LDFLAGS)
728
729         AC_MSG_CHECKING(for native build linker-libraries)
730         AC_ARG_WITH(build-libs,
731                 [  --with-build-libs=XXX   the build libraries (${BUILD_LIBS})],
732                 [BUILD_LIBS="$withval"])
733         AC_MSG_RESULT($BUILD_LIBS)
734
735         # this assumes we're on Unix.
736         BUILD_EXEEXT=
737         BUILD_OBJEXT=o
738
739         : ${BUILD_CC:='${CC}'}
740
741         if ( test "$BUILD_CC" = "$CC" || test "$BUILD_CC" = '${CC}' ) ; then
742                 AC_MSG_ERROR([Cross-build requires two compilers.
743 Use --with-build-cc to specify the native compiler.])
744         fi
745
746 else
747         : ${BUILD_CC:='${CC}'}
748         : ${BUILD_CPP:='${CPP}'}
749         : ${BUILD_CFLAGS:='${CFLAGS}'}
750         : ${BUILD_CPPFLAGS:='${CPPFLAGS}'}
751         : ${BUILD_LDFLAGS:='${LDFLAGS}'}
752         : ${BUILD_LIBS:='${LIBS}'}
753         : ${BUILD_EXEEXT:='$x'}
754         : ${BUILD_OBJEXT:='o'}
755 fi
756
757 AC_SUBST(BUILD_CC)
758 AC_SUBST(BUILD_CPP)
759 AC_SUBST(BUILD_CFLAGS)
760 AC_SUBST(BUILD_CPPFLAGS)
761 AC_SUBST(BUILD_LDFLAGS)
762 AC_SUBST(BUILD_LIBS)
763 AC_SUBST(BUILD_EXEEXT)
764 AC_SUBST(BUILD_OBJEXT)
765 ])dnl
766 dnl ---------------------------------------------------------------------------
767 dnl CF_CC_ENV_FLAGS version: 9 updated: 2018/07/29 18:03:26
768 dnl ---------------
769 dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
770 dnl into CC.  This will not help with broken scripts that wrap the compiler
771 dnl with options, but eliminates a more common category of user confusion.
772 dnl
773 dnl In particular, it addresses the problem of being able to run the C
774 dnl preprocessor in a consistent manner.
775 dnl
776 dnl Caveat: this also disallows blanks in the pathname for the compiler, but
777 dnl the nuisance of having inconsistent settings for compiler and preprocessor
778 dnl outweighs that limitation.
779 AC_DEFUN([CF_CC_ENV_FLAGS],
780 [
781 # This should have been defined by AC_PROG_CC
782 : ${CC:=cc}
783
784 AC_MSG_CHECKING(\$CFLAGS variable)
785 case "x$CFLAGS" in
786 (*-[[IUD]]*)
787         AC_MSG_RESULT(broken)
788         AC_MSG_WARN(your environment uses the CFLAGS variable to hold CPPFLAGS options)
789         cf_flags="$CFLAGS"
790         CFLAGS=
791         for cf_arg in $cf_flags
792         do
793                 CF_ADD_CFLAGS($cf_arg)
794         done
795         ;;
796 (*)
797         AC_MSG_RESULT(ok)
798         ;;
799 esac
800
801 AC_MSG_CHECKING(\$CC variable)
802 case "$CC" in
803 (*[[\ \ ]]-*)
804         AC_MSG_RESULT(broken)
805         AC_MSG_WARN(your environment uses the CC variable to hold CFLAGS/CPPFLAGS options)
806         # humor him...
807         cf_prog=`echo "$CC" | sed -e 's/        / /g' -e 's/[[ ]]* / /g' -e 's/[[ ]]*[[ ]]-[[^ ]].*//'`
808         cf_flags=`echo "$CC" | ${AWK:-awk} -v prog="$cf_prog" '{ printf("%s", [substr]([$]0,1+length(prog))); }'`
809         CC="$cf_prog"
810         for cf_arg in $cf_flags
811         do
812                 case "x$cf_arg" in
813                 (x-[[IUDfgOW]]*)
814                         CF_ADD_CFLAGS($cf_arg)
815                         ;;
816                 (*)
817                         CC="$CC $cf_arg"
818                         ;;
819                 esac
820         done
821         CF_VERBOSE(resulting CC: '$CC')
822         CF_VERBOSE(resulting CFLAGS: '$CFLAGS')
823         CF_VERBOSE(resulting CPPFLAGS: '$CPPFLAGS')
824         ;;
825 (*)
826         AC_MSG_RESULT(ok)
827         ;;
828 esac
829 ])dnl
830 dnl ---------------------------------------------------------------------------
831 dnl CF_CFG_DEFAULTS version: 11 updated: 2015/04/17 21:13:04
832 dnl ---------------
833 dnl Determine the default configuration into which we'll install ncurses.  This
834 dnl can be overridden by the user's command-line options.  There's two items to
835 dnl look for:
836 dnl     1. the prefix (e.g., /usr)
837 dnl     2. the header files (e.g., /usr/include/ncurses)
838 dnl We'll look for a previous installation of ncurses and use the same defaults.
839 dnl
840 dnl We don't use AC_PREFIX_DEFAULT, because it gets evaluated too soon, and
841 dnl we don't use AC_PREFIX_PROGRAM, because we cannot distinguish ncurses's
842 dnl programs from a vendor's.
843 AC_DEFUN([CF_CFG_DEFAULTS],
844 [
845 AC_MSG_CHECKING(for prefix)
846 if test "x$prefix" = "xNONE" ; then
847         case "$cf_cv_system_name" in
848                 # non-vendor systems don't have a conflict
849         (openbsd*|freebsd*|mirbsd*|linux*|cygwin*|msys*|k*bsd*-gnu|mingw*)
850                 prefix=/usr
851                 ;;
852         (*)     prefix=$ac_default_prefix
853                 ;;
854         esac
855 fi
856 AC_MSG_RESULT($prefix)
857
858 if test "x$prefix" = "xNONE" ; then
859 AC_MSG_CHECKING(for default include-directory)
860 test -n "$verbose" && echo 1>&AC_FD_MSG
861 for cf_symbol in \
862         $includedir \
863         $includedir/ncurses \
864         $prefix/include \
865         $prefix/include/ncurses \
866         /usr/local/include \
867         /usr/local/include/ncurses \
868         /usr/include \
869         /usr/include/ncurses
870 do
871         cf_dir=`eval echo $cf_symbol`
872         if test -f $cf_dir/curses.h ; then
873         if ( fgrep NCURSES_VERSION $cf_dir/curses.h 2>&1 >/dev/null ) ; then
874                 includedir="$cf_symbol"
875                 test -n "$verbose"  && echo $ac_n "     found " 1>&AC_FD_MSG
876                 break
877         fi
878         fi
879         test -n "$verbose"  && echo "   tested $cf_dir" 1>&AC_FD_MSG
880 done
881 AC_MSG_RESULT($includedir)
882 fi
883 ])dnl
884 dnl ---------------------------------------------------------------------------
885 dnl CF_CGETENT version: 6 updated: 2017/01/21 11:06:25
886 dnl ----------
887 dnl Check if the terminal-capability database functions are available.  If not,
888 dnl ncurses has a much-reduced version.
889 AC_DEFUN([CF_CGETENT],[
890 AC_CACHE_CHECK(for terminal-capability database functions,cf_cv_cgetent,[
891 AC_TRY_LINK([
892 #include <stdlib.h>],[
893         char temp[128];
894         char *buf = temp;
895         char *db_array = temp;
896         cgetent(&buf, &db_array, "vt100");
897         cgetcap(buf, "tc", '=');
898         cgetmatch(buf, "tc");
899         ],
900         [cf_cv_cgetent=yes],
901         [cf_cv_cgetent=no])
902 ])
903
904 if test "$cf_cv_cgetent" = yes
905 then
906         AC_DEFINE(HAVE_BSD_CGETENT,1,[Define to 1 if we have BSD cgetent])
907 AC_CACHE_CHECK(if cgetent uses const parameter,cf_cv_cgetent_const,[
908 AC_TRY_LINK([
909 #pragma GCC diagnostic error "-Wincompatible-pointer-types-discards-qualifiers"
910 #include <stdlib.h>],[
911         char temp[128];
912         char *buf = temp;
913 #ifndef _NETBSD_SOURCE                  /* given, since April 2004 in stdlib.h */
914         const char *db_array = temp;
915         cgetent(&buf, &db_array, "vt100");
916 #endif
917         cgetcap(buf, "tc", '=');
918         cgetmatch(buf, "tc");
919         ],
920         [cf_cv_cgetent_const=yes],
921         [cf_cv_cgetent_const=no])
922 ])
923         if test "$cf_cv_cgetent_const" = yes
924         then
925                 AC_DEFINE_UNQUOTED(CGETENT_CONST,const,[Define to const if needed for some BSD cgetent variations])
926         fi
927 fi
928 ])dnl
929 dnl ---------------------------------------------------------------------------
930 dnl CF_CHECK_CACHE version: 12 updated: 2012/10/02 20:55:03
931 dnl --------------
932 dnl Check if we're accidentally using a cache from a different machine.
933 dnl Derive the system name, as a check for reusing the autoconf cache.
934 dnl
935 dnl If we've packaged config.guess and config.sub, run that (since it does a
936 dnl better job than uname).  Normally we'll use AC_CANONICAL_HOST, but allow
937 dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
938 dnl which is useful in cross-compiles.
939 dnl
940 dnl Note: we would use $ac_config_sub, but that is one of the places where
941 dnl autoconf 2.5x broke compatibility with autoconf 2.13
942 AC_DEFUN([CF_CHECK_CACHE],
943 [
944 if test -f $srcdir/config.guess || test -f $ac_aux_dir/config.guess ; then
945         ifelse([$1],,[AC_CANONICAL_HOST],[$1])
946         system_name="$host_os"
947 else
948         system_name="`(uname -s -r) 2>/dev/null`"
949         if test -z "$system_name" ; then
950                 system_name="`(hostname) 2>/dev/null`"
951         fi
952 fi
953 test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name",[Define to the system name.])
954 AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
955
956 test -z "$system_name" && system_name="$cf_cv_system_name"
957 test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)
958
959 if test ".$system_name" != ".$cf_cv_system_name" ; then
960         AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
961         AC_MSG_ERROR("Please remove config.cache and try again.")
962 fi
963 ])dnl
964 dnl ---------------------------------------------------------------------------
965 dnl CF_CHECK_ENVIRON version: 3 updated: 2010/05/26 16:44:57
966 dnl ----------------
967 dnl Check for data that is usually declared in <unistd.h>, e.g., the 'environ'
968 dnl variable.  Define a DECL_xxx symbol if we must declare it ourselves.
969 dnl
970 dnl $1 = the name to check
971 dnl $2 = the assumed type
972 AC_DEFUN([CF_CHECK_ENVIRON],
973 [
974 AC_CACHE_CHECK(if external $1 is declared, cf_cv_dcl_$1,[
975     AC_TRY_COMPILE([
976 #ifdef HAVE_STDLIB_H
977 #include <stdlib.h>
978 #endif
979 #include <unistd.h> ],
980     ifelse([$2],,int,[$2]) x = (ifelse([$2],,int,[$2])) $1,
981     [cf_cv_dcl_$1=yes],
982     [cf_cv_dcl_$1=no])
983 ])
984
985 if test "$cf_cv_dcl_$1" = no ; then
986     CF_UPPER(cf_result,decl_$1)
987     AC_DEFINE_UNQUOTED($cf_result)
988 fi
989
990 # It's possible (for near-UNIX clones) that the data doesn't exist
991 CF_CHECK_EXTERN_DATA($1,ifelse([$2],,int,[$2]))
992 ])dnl
993 dnl ---------------------------------------------------------------------------
994 dnl CF_CHECK_ERRNO version: 13 updated: 2020/03/10 18:53:47
995 dnl --------------
996 dnl Check for data that is usually declared in <stdio.h> or <errno.h>, e.g.,
997 dnl the 'errno' variable.  Define a DECL_xxx symbol if we must declare it
998 dnl ourselves.
999 dnl
1000 dnl $1 = the name to check
1001 dnl $2 = the assumed type
1002 AC_DEFUN([CF_CHECK_ERRNO],
1003 [
1004 AC_CACHE_CHECK(if external $1 is declared, cf_cv_dcl_$1,[
1005         AC_TRY_COMPILE([
1006 #ifdef HAVE_STDLIB_H
1007 #include <stdlib.h>
1008 #endif
1009 #include <stdio.h>
1010 #include <sys/types.h>
1011 #include <errno.h> ],
1012         ifelse([$2],,int,[$2]) x = (ifelse([$2],,int,[$2])) $1; (void)x,
1013         [cf_cv_dcl_$1=yes],
1014         [cf_cv_dcl_$1=no])
1015 ])
1016
1017 if test "$cf_cv_dcl_$1" = no ; then
1018         CF_UPPER(cf_result,decl_$1)
1019         AC_DEFINE_UNQUOTED($cf_result)
1020 fi
1021
1022 # It's possible (for near-UNIX clones) that the data doesn't exist
1023 CF_CHECK_EXTERN_DATA($1,ifelse([$2],,int,[$2]))
1024 ])dnl
1025 dnl ---------------------------------------------------------------------------
1026 dnl CF_CHECK_EXTERN_DATA version: 4 updated: 2015/04/18 08:56:57
1027 dnl --------------------
1028 dnl Check for existence of external data in the current set of libraries.  If
1029 dnl we can modify it, it's real enough.
1030 dnl $1 = the name to check
1031 dnl $2 = its type
1032 AC_DEFUN([CF_CHECK_EXTERN_DATA],
1033 [
1034 AC_CACHE_CHECK(if external $1 exists, cf_cv_have_$1,[
1035         AC_TRY_LINK([
1036 #undef $1
1037 extern $2 $1;
1038 ],
1039         [$1 = 2],
1040         [cf_cv_have_$1=yes],
1041         [cf_cv_have_$1=no])
1042 ])
1043
1044 if test "$cf_cv_have_$1" = yes ; then
1045         CF_UPPER(cf_result,have_$1)
1046         AC_DEFINE_UNQUOTED($cf_result)
1047 fi
1048
1049 ])dnl
1050 dnl ---------------------------------------------------------------------------
1051 dnl CF_CHECK_FVISIBILITY version: 2 updated: 2020/04/04 16:16:13
1052 dnl --------------------
1053 dnl Check whether the compiler understands -fvisibility=hidden
1054 dnl
1055 dnl $1 = compiler
1056 dnl $2 = compiler-flags variable name
1057 dnl $3 = cache variable to set
1058 AC_DEFUN([CF_CHECK_FVISIBILITY],[
1059 AC_CACHE_CHECK(if $1 -fvisibility=hidden option works,$3,[
1060     cf_save_cflags="[$]$2"
1061     $2="[$]$2 -fvisibility=hidden"
1062     AC_TRY_LINK([
1063 __attribute__ ((visibility("default"))) int somefunc() {return 42;}
1064         ],[
1065         if (somefunc()) return 1;
1066 ],
1067     [$3=yes],
1068     [$3=no])
1069     $2=$cf_save_cflags
1070 ])
1071 ])dnl
1072 dnl ---------------------------------------------------------------------------
1073 dnl CF_CHECK_GETENV version: 1 updated: 2019/06/23 15:28:15
1074 dnl ---------------
1075 dnl Check if repeated getenv calls return the same pointer, e.g., it does not
1076 dnl discard the previous pointer when returning a new one.
1077 AC_DEFUN([CF_CHECK_GETENV],
1078 [
1079 AC_REQUIRE([CF_CHECK_ENVIRON])
1080 AC_CHECK_FUNC( getenv, ,, AC_MSG_ERROR(getenv not found) )
1081 AC_CHECK_FUNCS( putenv setenv strdup )
1082 AC_CACHE_CHECK(if getenv returns consistent values,cf_cv_consistent_getenv,[
1083 AC_TRY_RUN([
1084 #include <stdlib.h>
1085 #include <unistd.h>
1086 #include <stdio.h>
1087 #include <string.h>
1088 #include <sys/types.h>
1089
1090 #if defined(HAVE_ENVIRON) && defined(DECL_ENVIRON) && !defined(environ)
1091 extern char **environ;  /* POSIX, but some systems are not... */
1092 #endif
1093
1094 #if defined(HAVE_STRDUP)
1095 #define str_alloc(s) strdup(s)
1096 #else
1097 #define str_alloc(s) strcpy(malloc(strlen(s) + 1, s))
1098 #endif
1099
1100 static void set_value(const char *name, const char *value)
1101 {
1102 #if defined(HAVE_SETENV)
1103         setenv(name, value, 1);
1104 #elif defined(HAVE_PUTENV)
1105         char buffer[1024];
1106         sprintf(buffer, "%s=%s", name, value);
1107         putenv(str_alloc(buffer));
1108 #else
1109 #error neither putenv/setenv found
1110 #endif
1111 }
1112 int main(void)
1113 {
1114         int pass;
1115         size_t numenv, limit, j;
1116         char **mynames;
1117         char **myvalues;
1118         char **mypointer;
1119         char *equals;
1120         for (numenv = 0; environ[numenv]; ++numenv) ;
1121         limit = numenv + 10;
1122         mynames = (char **) calloc(limit + 1, sizeof(char *));
1123         myvalues = (char **) calloc(limit + 1, sizeof(char *));
1124         mypointer = (char **) calloc(limit + 1, sizeof(char *));
1125 #if defined(HAVE_ENVIRON)
1126         for (j = 0; environ[j]; ++j) {
1127                 mynames[j] = str_alloc(environ[j]);
1128                 equals = strchr(mynames[j], '=');
1129                 if (equals != 0) {
1130                         *equals++ = '\0';
1131                         myvalues[j] = str_alloc(equals);
1132                 } else {
1133                         myvalues[j] = str_alloc("");
1134                 }
1135         }
1136 #endif
1137         for (j = numenv; j < limit; ++j) {
1138                 char name[80];
1139                 char value[80];
1140                 size_t found;
1141                 size_t k = 0;
1142                 do {
1143                         size_t jk;
1144                         found = 0;
1145                         sprintf(name, "TERM%lu", (unsigned long) k);
1146                         for (jk = 0; jk < j; ++jk) {
1147                                 if (!strcmp(name, mynames[jk])) {
1148                                         found = 1;
1149                                         ++k;
1150                                         break;
1151                                 }
1152                         }
1153                 } while (found);
1154                 sprintf(value, "%lu:%p", (unsigned long) k, &mynames[j]);
1155                 set_value(name, value);
1156                 mynames[j] = str_alloc(name);
1157                 myvalues[j] = str_alloc(value);
1158         }
1159         for (pass = 0; pass < 3; ++pass) {
1160                 for (j = 0; j < limit; ++j) {
1161                         char *value = getenv(mynames[j]);
1162                         if (pass) {
1163                                 if (value == 0) {
1164                                         fprintf(stderr, "getenv returned null for %s\n", mynames[j]);
1165                                         ${cf_cv_main_return:-return}(1);
1166                                 } else if (value != mypointer[j]) {
1167                                         fprintf(stderr, "getenv returned different pointer for %s\n", mynames[j]);
1168                                         ${cf_cv_main_return:-return}(1);
1169                                 } else if (strcmp(value, myvalues[j])) {
1170                                         fprintf(stderr, "getenv returned different value for %s\n", mynames[j]);
1171                                         ${cf_cv_main_return:-return}(1);
1172                                 }
1173                         } else {
1174                                 size_t k;
1175                                 mypointer[j] = value;
1176                                 for (k = 0; k < j; ++k) {
1177                                         if (mypointer[j] == mypointer[k]) {
1178                                                 fprintf(stderr, "getenv returned same pointer for %s and %s\n", mynames[j], mynames[k]);
1179                                                 ${cf_cv_main_return:-return}(1);
1180                                         }
1181                                 }
1182                         }
1183                 }
1184         }
1185         ${cf_cv_main_return:-return}(0);
1186 }
1187 ],
1188 [cf_cv_consistent_getenv=yes],
1189 [cf_cv_consistent_getenv=no],
1190 [cf_cv_consistent_getenv=unknown])
1191 ])
1192
1193 if test "x$cf_cv_consistent_getenv" = xno
1194 then
1195         AC_DEFINE(HAVE_CONSISTENT_GETENV,1,[Define to 1 if getenv repeatably returns the same value for a given name])
1196 fi
1197 ])dnl
1198 dnl ---------------------------------------------------------------------------
1199 dnl CF_CHECK_GNAT_VERSION version: 3 updated: 2020/05/23 19:39:36
1200 dnl ---------------------
1201 AC_DEFUN([CF_CHECK_GNAT_VERSION],
1202 [
1203 AC_REQUIRE([CF_GNAT_VERSION])
1204 case $cf_cv_gnat_version in
1205 (3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|[[1-9]][[0-9]].[[0-9]]*|20[[0-9]][[0-9]])
1206         cf_cv_prog_gnat_correct=yes
1207         ;;
1208 (*)
1209         AC_MSG_WARN(Unsupported GNAT version $cf_cv_gnat_version. We require 3.11 or better. Disabling Ada95 binding.)
1210         cf_cv_prog_gnat_correct=no
1211         ;;
1212 esac
1213 ])
1214 dnl ---------------------------------------------------------------------------
1215 dnl CF_CHECK_GPM_WGETCH version: 3 updated: 2017/01/21 11:06:25
1216 dnl -------------------
1217 dnl Check if GPM is already linked with curses.  If so - and if the linkage
1218 dnl is not "weak" - warn about this because it can create problems linking
1219 dnl applications with ncurses.
1220 AC_DEFUN([CF_CHECK_GPM_WGETCH],[
1221 AC_CHECK_LIB(gpm,Gpm_Wgetch,[
1222
1223 AC_CACHE_CHECK(if GPM is weakly bound to curses library, cf_cv_check_gpm_wgetch,[
1224 cf_cv_check_gpm_wgetch=unknown
1225 if test "$cross_compiling" != yes ; then
1226
1227 cat >conftest.$ac_ext <<CF_EOF
1228 #include <gpm.h>
1229 int main(void)
1230 {
1231         Gpm_Wgetch();
1232         ${cf_cv_main_return:-return}(0);
1233 }
1234 CF_EOF
1235
1236         cf_save_LIBS="$LIBS"
1237         # This only works if we can look at the symbol table.  If a shared
1238         # library is stripped for install, we cannot use that.  So we're forced
1239         # to rely on the static library, noting that some packagers may not
1240         # include it.
1241         LIBS="-static -lgpm -dynamic $LIBS"
1242         if AC_TRY_EVAL(ac_compile) ; then
1243                 if AC_TRY_EVAL(ac_link) ; then
1244                         cf_cv_check_gpm_wgetch=`nm conftest$ac_exeext | egrep '\<wgetch\>' | egrep '\<[[vVwW]]\>'`
1245                         test -n "$cf_cv_check_gpm_wgetch" && cf_cv_check_gpm_wgetch=yes
1246                         test -z "$cf_cv_check_gpm_wgetch" && cf_cv_check_gpm_wgetch=no
1247                 fi
1248         fi
1249         rm -rf conftest*
1250         LIBS="$cf_save_LIBS"
1251 fi
1252 ])
1253
1254 if test "$cf_cv_check_gpm_wgetch" != yes ; then
1255         AC_MSG_WARN(GPM library is already linked with curses - read the FAQ)
1256 fi
1257 ])])dnl
1258 dnl ---------------------------------------------------------------------------
1259 dnl CF_CHECK_LIBTOOL_VERSION version: 1 updated: 2013/04/06 18:03:09
1260 dnl ------------------------
1261 dnl Show the version of libtool
1262 dnl
1263 dnl Save the version in a cache variable - this is not entirely a good thing,
1264 dnl but the version string from libtool is very ugly, and for bug reports it
1265 dnl might be useful to have the original string.
1266 AC_DEFUN([CF_CHECK_LIBTOOL_VERSION],[
1267 if test -n "$LIBTOOL" && test "$LIBTOOL" != none
1268 then
1269         AC_MSG_CHECKING(version of $LIBTOOL)
1270         CF_LIBTOOL_VERSION
1271         AC_MSG_RESULT($cf_cv_libtool_version)
1272         if test -z "$cf_cv_libtool_version" ; then
1273                 AC_MSG_ERROR(This is not GNU libtool)
1274         fi
1275 else
1276         AC_MSG_ERROR(GNU libtool has not been found)
1277 fi
1278 ])dnl
1279 dnl ---------------------------------------------------------------------------
1280 dnl CF_CHECK_WCHAR_H version: 2 updated: 2017/01/21 11:06:25
1281 dnl ----------------
1282 dnl Check if wchar.h can be used, i.e., without defining _XOPEN_SOURCE_EXTENDED
1283 AC_DEFUN([CF_CHECK_WCHAR_H],[
1284 AC_CHECK_HEADERS( \
1285 wchar.h \
1286 wctype.h \
1287 )
1288 AC_CACHE_CHECK(if wchar.h can be used as is,cf_cv_wchar_h_okay,[
1289 AC_TRY_COMPILE(
1290 [
1291 #include <stdlib.h>
1292 #ifdef HAVE_WCHAR_H
1293 #include <wchar.h>
1294 #endif
1295 #ifdef HAVE_WCTYPE_H
1296 #include <wctype.h>
1297 #endif
1298 ],[
1299         wint_t foo = 0;
1300         int bar = iswpunct(foo)],
1301         [cf_cv_wchar_h_okay=yes],
1302         [cf_cv_wchar_h_okay=no])])
1303
1304 if test $cf_cv_wchar_h_okay = no
1305 then
1306         CF_PREDEFINE(_XOPEN_SOURCE_EXTENDED)
1307 fi
1308 ])dnl
1309 dnl ---------------------------------------------------------------------------
1310 dnl CF_CHECK_WCWIDTH_GRAPHICS version: 1 updated: 2015/12/19 17:47:56
1311 dnl -------------------------
1312 dnl Most "modern" terminal emulators are based to some degree on VT100, and
1313 dnl should support line-drawing.  Even with Unicode.  There is a problem.
1314 dnl
1315 dnl While most of the VT100 graphics characters were incorporated into Unicode,
1316 dnl all of those were combined into a page of useful graphics characters.
1317 dnl
1318 dnl So far, so good.
1319 dnl
1320 dnl However, while they are useful, there are other considerations.  CJK
1321 dnl is (because of poor device resolution) often rendered as double-width
1322 dnl characters.  So... for these generally-useful characters, what should
1323 dnl be the width (to make them consistent with adjacent characters)?
1324 dnl
1325 dnl The obvious choice would have been to make this locale-dependent, and use
1326 dnl wcwidth() to tell applications what the actual width is.  That was too
1327 dnl obvious.  Instead, we have a slew of "ambiguous-width" characters.
1328 dnl See for example
1329 dnl             http://www.unicode.org/reports/tr11/tr11-29.html
1330 dnl             http://www.cl.cam.ac.uk/~mgk25/ucs/scw-proposal.html
1331 dnl
1332 dnl The EastAsianWidth-6.2.0.txt file from the Unicode organization lists
1333 dnl more than 22,000 characters, with 1281 of those as ambiguous-width.  For
1334 dnl instance, it lists half (44/96) of the Latin-1 characters as
1335 dnl ambiguous-width.  Also, all of the box-characters at 0x2500 are ambiguous.
1336 dnl
1337 dnl What this means for the implementor is that on some systems wcwidth() can
1338 dnl give bad advice.  On Solaris, some of the ambiguous widths are returned as
1339 dnl 1 (the Latin-1 characters), while others are returned as 2 (line-drawing
1340 dnl characters).  These do not necessarily match the behavior of the terminal
1341 dnl emulator.  xterm, for instance, does an optional startup check to find if
1342 dnl this problem (or similar) exists with the system's locale tables, rejecting
1343 dnl them if they are too unreliable.
1344 AC_DEFUN([CF_CHECK_WCWIDTH_GRAPHICS],[
1345 AC_CACHE_CHECK(if wcwidth agrees graphics are single-width, cf_cv_wcwidth_graphics,[
1346 cat >conftest.in <<CF_EOF
1347 -       VT100 symbols
1348 0x250c  upper left corner
1349 0x2514  lower left corner
1350 0x2510  upper right corner
1351 0x2518  lower right corner
1352 0x251c  tee pointing left
1353 0x2524  tee pointing right
1354 0x2534  tee pointing up
1355 0x252c  tee pointing down
1356 0x2500  horizontal line
1357 0x2502  vertical line
1358 0x253c  large plus or crossover
1359 0x23ba  scan line 1
1360 0x23bd  scan line 9
1361 0x25c6  diamond
1362 0x2592  checker board (stipple)
1363 0x00b0  degree symbol
1364 0x00b1  plus/minus
1365 0x00b7  bullet
1366 -       Teletype 5410v1 symbols
1367 0x2190  arrow pointing left
1368 0x2192  arrow pointing right
1369 0x2193  arrow pointing down
1370 0x2191  arrow pointing up
1371 0x2592  board of squares
1372 0x2603  lantern symbol
1373 0x25ae  solid square block
1374 -       these defaults were invented for ncurses
1375 0x23bb  scan line 3
1376 0x23bc  scan line 7
1377 0x2264  less-than-or-equal-to
1378 0x2265  greater-than-or-equal-to
1379 0x03c0  greek pi
1380 0x2260  not-equal
1381 0x00a3  pound-sterling symbol
1382 -       thick-line-drawing
1383 0x250f  upper left corner
1384 0x2517  lower left corner
1385 0x2513  upper right corner
1386 0x251b  lower right corner
1387 0x2523  tee pointing left
1388 0x252b  tee pointing right
1389 0x253b  tee pointing up
1390 0x2533  tee pointing down
1391 0x2501  horizontal line
1392 0x2503  vertical line
1393 0x254b  large plus or crossover
1394 -       double-line-drawing
1395 0x2554  upper left corner
1396 0x255a  lower left corner
1397 0x2557  upper right corner
1398 0x255d  lower right corner
1399 0x2563  tee pointing left
1400 0x2560  tee pointing right
1401 0x2569  tee pointing up
1402 0x2566  tee pointing down
1403 0x2550  horizontal line
1404 0x2551  vertical line
1405 0x256c  large plus or crossover
1406 CF_EOF
1407 AC_TRY_RUN([
1408 #include <locale.h>
1409 #include <stdio.h>
1410 #include <wchar.h>
1411
1412 #define MY_LEN 80
1413
1414 int
1415 main(void)
1416 {
1417         FILE *fp;
1418         int value;
1419         char buffer[MY_LEN + 1];
1420         char notes[MY_LEN + 1];
1421         int totals = 0;
1422         int passed = 0;
1423
1424         if (setlocale(LC_ALL, "en_US.UTF8") ||
1425                 setlocale(LC_ALL, "en_US.UTF-8") ||
1426                 setlocale(LC_ALL, "en_US.utf8") ||
1427                 setlocale(LC_ALL, "en_US.utf-8")) {
1428                 if ((fp = fopen("conftest.in", "r")) != 0) {
1429                         while (fgets(buffer, MY_LEN, fp) != 0) {
1430                                 if (*buffer == '-') {
1431                                         fprintf(stderr, "\t%s", buffer);
1432                                 } else if (sscanf(buffer, "%x %s", &value, notes) == 2) {
1433                                         ++totals;
1434                                         if (wcwidth(value) == 1)
1435                                                 ++passed;
1436                                         fprintf(stderr, "%d\t%s", wcwidth(value), buffer);
1437                                 } else {
1438                                         fprintf(stderr, "?\t%s", buffer);
1439                                 }
1440                         }
1441                 }
1442         }
1443         fprintf(stderr, "%d/%d passed wcwidth/graphics check\n", passed, totals);
1444         return (totals == passed) ? 0 : 1;
1445 }
1446 ],
1447 [cf_cv_wcwidth_graphics=yes],
1448 [cf_cv_wcwidth_graphics=no],
1449 [cf_cv_wcwidth_graphics=unknown])
1450 ])
1451 ])dnl
1452 dnl ---------------------------------------------------------------------------
1453 dnl CF_CLANG_COMPILER version: 2 updated: 2013/11/19 19:23:35
1454 dnl -----------------
1455 dnl Check if the given compiler is really clang.  clang's C driver defines
1456 dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
1457 dnl not ignore some gcc options.
1458 dnl
1459 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
1460 dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
1461 dnl the wrappers for gcc and g++ warnings.
1462 dnl
1463 dnl $1 = GCC (default) or GXX
1464 dnl $2 = CLANG_COMPILER (default)
1465 dnl $3 = CFLAGS (default) or CXXFLAGS
1466 AC_DEFUN([CF_CLANG_COMPILER],[
1467 ifelse([$2],,CLANG_COMPILER,[$2])=no
1468
1469 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
1470         AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
1471         cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
1472         ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -Qunused-arguments"
1473         AC_TRY_COMPILE([],[
1474 #ifdef __clang__
1475 #else
1476 make an error
1477 #endif
1478 ],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
1479 cf_save_CFLAGS="$cf_save_CFLAGS -Qunused-arguments"
1480 ],[])
1481         ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
1482         AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
1483 fi
1484 ])
1485 dnl ---------------------------------------------------------------------------
1486 dnl CF_CONST_X_STRING version: 4 updated: 2020/03/10 18:53:47
1487 dnl -----------------
1488 dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
1489 dnl character-strings.
1490 dnl
1491 dnl It is ambiguous because the specification accommodated the pre-ANSI
1492 dnl compilers bundled by more than one vendor in lieu of providing a standard C
1493 dnl compiler other than by costly add-ons.  Because of this, the specification
1494 dnl did not take into account the use of const for telling the compiler that
1495 dnl string literals would be in readonly memory.
1496 dnl
1497 dnl As a workaround, one could (starting with X11R5) define XTSTRINGDEFINES, to
1498 dnl let the compiler decide how to represent Xt's strings which were #define'd. 
1499 dnl That does not solve the problem of using the block of Xt's strings which
1500 dnl are compiled into the library (and is less efficient than one might want).
1501 dnl
1502 dnl Xt specification 7 introduces the _CONST_X_STRING symbol which is used both
1503 dnl when compiling the library and compiling using the library, to tell the
1504 dnl compiler that String is const.
1505 AC_DEFUN([CF_CONST_X_STRING],
1506 [
1507 AC_REQUIRE([AC_PATH_XTRA])
1508
1509 CF_SAVE_XTRA_FLAGS([CF_CONST_X_STRING])
1510
1511 AC_TRY_COMPILE(
1512 [
1513 #include <stdlib.h>
1514 #include <X11/Intrinsic.h>
1515 ],
1516 [String foo = malloc(1); (void)foo],[
1517
1518 AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
1519         AC_TRY_COMPILE(
1520                 [
1521 #define _CONST_X_STRING /* X11R7.8 (perhaps) */
1522 #undef  XTSTRINGDEFINES /* X11R5 and later */
1523 #include <stdlib.h>
1524 #include <X11/Intrinsic.h>
1525                 ],[String foo = malloc(1); *foo = 0],[
1526                         cf_cv_const_x_string=no
1527                 ],[
1528                         cf_cv_const_x_string=yes
1529                 ])
1530 ])
1531
1532 CF_RESTORE_XTRA_FLAGS([CF_CONST_X_STRING])
1533
1534 case $cf_cv_const_x_string in
1535 (no)
1536         CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
1537         ;;
1538 (*)
1539         CF_APPEND_TEXT(CPPFLAGS,-D_CONST_X_STRING)
1540         ;;
1541 esac
1542
1543 ])
1544 ])dnl
1545 dnl ---------------------------------------------------------------------------
1546 dnl CF_CPP_PARAM_INIT version: 7 updated: 2017/01/21 11:06:25
1547 dnl -----------------
1548 dnl Check if the C++ compiler accepts duplicate parameter initialization.  This
1549 dnl is a late feature for the standard and is not in some recent compilers
1550 dnl (1999/9/11).
1551 AC_DEFUN([CF_CPP_PARAM_INIT],
1552 [
1553 if test -n "$CXX"; then
1554 AC_CACHE_CHECK(if $CXX accepts parameter initialization,cf_cv_cpp_param_init,[
1555         AC_LANG_SAVE
1556         AC_LANG_CPLUSPLUS
1557         AC_TRY_RUN([
1558 class TEST {
1559 private:
1560         int value;
1561 public:
1562         TEST(int x = 1);
1563         ~TEST();
1564 };
1565
1566 TEST::TEST(int x = 1)   // some compilers do not like second initializer
1567 {
1568         value = x;
1569 }
1570 int main(void) { }
1571 ],
1572         [cf_cv_cpp_param_init=yes],
1573         [cf_cv_cpp_param_init=no],
1574         [cf_cv_cpp_param_init=unknown])
1575         AC_LANG_RESTORE
1576 ])
1577 fi
1578 test "$cf_cv_cpp_param_init" = yes && AC_DEFINE(CPP_HAS_PARAM_INIT,1,[Define to 1 if C++ has parameter initialization])
1579 ])dnl
1580 dnl ---------------------------------------------------------------------------
1581 dnl CF_CPP_STATIC_CAST version: 3 updated: 2013/04/13 18:03:21
1582 dnl ------------------
1583 dnl Check if the C++ compiler accepts static_cast in generics.  This appears to
1584 dnl not be supported in g++ before 3.0
1585 AC_DEFUN([CF_CPP_STATIC_CAST],
1586 [
1587 if test -n "$CXX"; then
1588
1589 AC_CACHE_CHECK(if $CXX accepts static_cast,cf_cv_cpp_static_cast,[
1590         AC_LANG_SAVE
1591         AC_LANG_CPLUSPLUS
1592
1593         AC_TRY_COMPILE([
1594 class NCursesPanel
1595 {
1596 public:
1597   NCursesPanel(int nlines,
1598                int ncols,
1599                int begin_y = 0,
1600                int begin_x = 0)
1601   {
1602   }
1603   NCursesPanel();
1604   ~NCursesPanel();
1605 };
1606
1607 template<class T> class NCursesUserPanel : public NCursesPanel
1608 {
1609 public:
1610   NCursesUserPanel (int nlines,
1611                     int ncols,
1612                     int begin_y = 0,
1613                     int begin_x = 0,
1614                     const T* p_UserData = static_cast<T*>(0))
1615     : NCursesPanel (nlines, ncols, begin_y, begin_x)
1616   {
1617   };
1618   NCursesUserPanel(const T* p_UserData = static_cast<T*>(0)) : NCursesPanel()
1619   {
1620   };
1621
1622   virtual ~NCursesUserPanel() {};
1623 };
1624 ],[
1625         const char* p_UserData = static_cast<char*>(0)],
1626         [cf_cv_cpp_static_cast=yes],
1627         [cf_cv_cpp_static_cast=no])
1628
1629         AC_LANG_RESTORE
1630 ])
1631
1632 fi
1633
1634 test "$cf_cv_cpp_static_cast" = yes && AC_DEFINE(CPP_HAS_STATIC_CAST,1,[Define to 1 if C++ has static_cast])
1635 ])dnl
1636 dnl ---------------------------------------------------------------------------
1637 dnl CF_CXX_AR_FLAGS version: 2 updated: 2015/04/17 21:13:04
1638 dnl ---------------
1639 dnl Setup special archiver flags for given compilers.
1640 AC_DEFUN([CF_CXX_AR_FLAGS],[
1641         CXX_AR='$(AR)'
1642         CXX_ARFLAGS='$(ARFLAGS)'
1643         case $cf_cv_system_name in
1644         (irix*)
1645             if test "$GXX" != yes ; then
1646                 CXX_AR='$(CXX)'
1647                 CXX_ARFLAGS='-ar -o'
1648             fi
1649             ;;
1650         (sco3.2v5*)
1651             CXXLDFLAGS="-u main"
1652             ;;
1653         (solaris2*)
1654             if test "$GXX" != yes ; then
1655                 CXX_AR='$(CXX)'
1656                 CXX_ARFLAGS='-xar -o'
1657             fi
1658             ;;
1659         esac
1660         AC_SUBST(CXXLDFLAGS)
1661         AC_SUBST(CXX_AR)
1662         AC_SUBST(CXX_ARFLAGS)
1663 ])dnl
1664 dnl ---------------------------------------------------------------------------
1665 dnl CF_CXX_IOSTREAM_NAMESPACE version: 2 updated: 2012/10/06 17:56:13
1666 dnl -------------------------
1667 dnl For c++, check if iostream uses "std::" namespace.
1668 AC_DEFUN([CF_CXX_IOSTREAM_NAMESPACE],[
1669 AC_CHECK_HEADERS(iostream)
1670 if test x"$ac_cv_header_iostream" = xyes ; then
1671         AC_MSG_CHECKING(if iostream uses std-namespace)
1672         AC_TRY_COMPILE([
1673 #include <iostream>
1674 using std::endl;
1675 using std::cerr;],[
1676 cerr << "testing" << endl;
1677 ],[cf_iostream_namespace=yes],[cf_iostream_namespace=no])
1678         AC_MSG_RESULT($cf_iostream_namespace)
1679         if test "$cf_iostream_namespace" = yes ; then
1680                 AC_DEFINE(IOSTREAM_NAMESPACE,1,[Define to 1 if C++ has namespace iostream])
1681         fi
1682 fi
1683 ])dnl
1684 dnl ---------------------------------------------------------------------------
1685 dnl CF_C_INLINE version: 6 updated: 2019/09/07 13:38:36
1686 dnl -----------
1687 dnl Check if the C compiler supports "inline".
1688 dnl $1 is the name of a shell variable to set if inline is supported
1689 dnl $2 is the threshold for gcc 4.x's option controlling maximum inline size
1690 AC_DEFUN([CF_C_INLINE],[
1691 AC_REQUIRE([CF_GCC_VERSION])
1692 AC_C_INLINE
1693 $1=
1694 if test "$ac_cv_c_inline" != no ; then
1695         $1=inline
1696         if test "$INTEL_COMPILER" = yes
1697         then
1698                 :
1699         elif test "$CLANG_COMPILER" = yes
1700         then
1701                 :
1702         elif test "$GCC" = yes
1703         then
1704                 AC_CACHE_CHECK(if $CC supports options to tune inlining,cf_cv_gcc_inline,[
1705                 cf_save_CFLAGS=$CFLAGS
1706                 CFLAGS="$CFLAGS --param max-inline-insns-single=$2"
1707                 AC_TRY_COMPILE([inline int foo(void) { return 1; }],
1708                 [${cf_cv_main_return:-return} foo()],
1709                 [cf_cv_gcc_inline=yes],
1710                 [cf_cv_gcc_inline=no])
1711                 CFLAGS=$cf_save_CFLAGS
1712                 ])
1713                 if test "$cf_cv_gcc_inline" = yes ; then
1714                         CF_ADD_CFLAGS([--param max-inline-insns-single=$2])
1715                 fi
1716         fi
1717 fi
1718 AC_SUBST($1)
1719 ])dnl
1720 dnl ---------------------------------------------------------------------------
1721 dnl CF_DIRNAME version: 4 updated: 2002/12/21 19:25:52
1722 dnl ----------
1723 dnl "dirname" is not portable, so we fake it with a shell script.
1724 AC_DEFUN([CF_DIRNAME],[$1=`echo $2 | sed -e 's%/[[^/]]*$%%'`])dnl
1725 dnl ---------------------------------------------------------------------------
1726 dnl CF_DIRS_TO_MAKE version: 3 updated: 2002/02/23 20:38:31
1727 dnl ---------------
1728 AC_DEFUN([CF_DIRS_TO_MAKE],
1729 [
1730 DIRS_TO_MAKE="lib"
1731 for cf_item in $cf_list_models
1732 do
1733         CF_OBJ_SUBDIR($cf_item,cf_subdir)
1734         for cf_item2 in $DIRS_TO_MAKE
1735         do
1736                 test $cf_item2 = $cf_subdir && break
1737         done
1738         test ".$cf_item2" != ".$cf_subdir" && DIRS_TO_MAKE="$DIRS_TO_MAKE $cf_subdir"
1739 done
1740 for cf_dir in $DIRS_TO_MAKE
1741 do
1742         test ! -d $cf_dir && mkdir $cf_dir
1743 done
1744 AC_SUBST(DIRS_TO_MAKE)
1745 ])dnl
1746 dnl ---------------------------------------------------------------------------
1747 dnl CF_DISABLE_ECHO version: 13 updated: 2015/04/18 08:56:57
1748 dnl ---------------
1749 dnl You can always use "make -n" to see the actual options, but it's hard to
1750 dnl pick out/analyze warning messages when the compile-line is long.
1751 dnl
1752 dnl Sets:
1753 dnl     ECHO_LT - symbol to control if libtool is verbose
1754 dnl     ECHO_LD - symbol to prefix "cc -o" lines
1755 dnl     RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
1756 dnl     SHOW_CC - symbol to put before explicit "cc -c" lines
1757 dnl     ECHO_CC - symbol to put before any "cc" line
1758 dnl
1759 AC_DEFUN([CF_DISABLE_ECHO],[
1760 AC_MSG_CHECKING(if you want to see long compiling messages)
1761 CF_ARG_DISABLE(echo,
1762         [  --disable-echo          do not display "compiling" commands],
1763         [
1764         ECHO_LT='--silent'
1765         ECHO_LD='@echo linking [$]@;'
1766         RULE_CC='@echo compiling [$]<'
1767         SHOW_CC='@echo compiling [$]@'
1768         ECHO_CC='@'
1769 ],[
1770         ECHO_LT=''
1771         ECHO_LD=''
1772         RULE_CC=''
1773         SHOW_CC=''
1774         ECHO_CC=''
1775 ])
1776 AC_MSG_RESULT($enableval)
1777 AC_SUBST(ECHO_LT)
1778 AC_SUBST(ECHO_LD)
1779 AC_SUBST(RULE_CC)
1780 AC_SUBST(SHOW_CC)
1781 AC_SUBST(ECHO_CC)
1782 ])dnl
1783 dnl ---------------------------------------------------------------------------
1784 dnl CF_DISABLE_GNAT_PROJECTS version: 1 updated: 2014/06/01 11:34:00
1785 dnl ------------------------
1786 AC_DEFUN([CF_DISABLE_GNAT_PROJECTS],[
1787 AC_MSG_CHECKING(if we want to use GNAT projects)
1788 CF_ARG_DISABLE(gnat-projects,
1789         [  --disable-gnat-projects test: disable GNAT projects even if usable],
1790         [enable_gnat_projects=no],
1791         [enable_gnat_projects=yes])
1792 AC_MSG_RESULT($enable_gnat_projects)
1793 ])dnl
1794 dnl ---------------------------------------------------------------------------
1795 dnl CF_DISABLE_LEAKS version: 7 updated: 2012/10/02 20:55:03
1796 dnl ----------------
1797 dnl Combine no-leak checks with the libraries or tools that are used for the
1798 dnl checks.
1799 AC_DEFUN([CF_DISABLE_LEAKS],[
1800
1801 AC_REQUIRE([CF_WITH_DMALLOC])
1802 AC_REQUIRE([CF_WITH_DBMALLOC])
1803 AC_REQUIRE([CF_WITH_VALGRIND])
1804
1805 AC_MSG_CHECKING(if you want to perform memory-leak testing)
1806 AC_ARG_ENABLE(leaks,
1807         [  --disable-leaks         test: free permanent memory, analyze leaks],
1808         [if test "x$enableval" = xno; then with_no_leaks=yes; else with_no_leaks=no; fi],
1809         : ${with_no_leaks:=no})
1810 AC_MSG_RESULT($with_no_leaks)
1811
1812 if test "$with_no_leaks" = yes ; then
1813         AC_DEFINE(NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
1814         AC_DEFINE(YY_NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
1815 fi
1816 ])dnl
1817 dnl ---------------------------------------------------------------------------
1818 dnl CF_DISABLE_LIBTOOL_VERSION version: 3 updated: 2015/04/17 21:13:04
1819 dnl --------------------------
1820 dnl Check if we should use the libtool 1.5 feature "-version-number" instead of
1821 dnl the older "-version-info" feature.  The newer feature allows us to use
1822 dnl version numbering on shared libraries which make them compatible with
1823 dnl various systems.
1824 AC_DEFUN([CF_DISABLE_LIBTOOL_VERSION],
1825 [
1826 AC_MSG_CHECKING(if libtool -version-number should be used)
1827 CF_ARG_DISABLE(libtool-version,
1828         [  --disable-libtool-version  enable to use libtool's incompatible naming scheme],
1829         [cf_libtool_version=no],
1830         [cf_libtool_version=yes])
1831 AC_MSG_RESULT($cf_libtool_version)
1832
1833 if test "$cf_libtool_version" = yes ; then
1834         LIBTOOL_VERSION="-version-number"
1835 else
1836         LIBTOOL_VERSION="-version-info"
1837         case "x$VERSION" in
1838         (x)
1839                 AC_MSG_WARN(VERSION was not set)
1840                 ;;
1841         (x*.*.*)
1842                 ABI_VERSION="$VERSION"
1843                 CF_VERBOSE(ABI_VERSION: $ABI_VERSION)
1844                 ;;
1845         (x*:*:*)
1846                 ABI_VERSION=`echo "$VERSION" | sed -e 's/:/./g'`
1847                 CF_VERBOSE(ABI_VERSION: $ABI_VERSION)
1848                 ;;
1849         (*)
1850                 AC_MSG_WARN(unexpected VERSION value: $VERSION)
1851                 ;;
1852         esac
1853 fi
1854
1855 AC_SUBST(ABI_VERSION)
1856 AC_SUBST(LIBTOOL_VERSION)
1857 ])dnl
1858 dnl ---------------------------------------------------------------------------
1859 dnl CF_DISABLE_RPATH_HACK version: 2 updated: 2011/02/13 13:31:33
1860 dnl ---------------------
1861 dnl The rpath-hack makes it simpler to build programs, particularly with the
1862 dnl *BSD ports which may have essential libraries in unusual places.  But it
1863 dnl can interfere with building an executable for the base system.  Use this
1864 dnl option in that case.
1865 AC_DEFUN([CF_DISABLE_RPATH_HACK],
1866 [
1867 AC_MSG_CHECKING(if rpath-hack should be disabled)
1868 CF_ARG_DISABLE(rpath-hack,
1869         [  --disable-rpath-hack    don't add rpath options for additional libraries],
1870         [cf_disable_rpath_hack=yes],
1871         [cf_disable_rpath_hack=no])
1872 AC_MSG_RESULT($cf_disable_rpath_hack)
1873 if test "$cf_disable_rpath_hack" = no ; then
1874         CF_RPATH_HACK
1875 fi
1876 ])
1877 dnl ---------------------------------------------------------------------------
1878 dnl CF_ENABLE_BROKEN_LINKER version: 1 updated: 2020/02/08 15:59:30
1879 dnl -----------------------
1880 dnl Some linkers cannot reference a data-only object.  Cygwin used to be one.
1881 dnl This usually follows CF_LINK_DATAONLY, but is not required in case we need
1882 dnl an unconditional feature.
1883 AC_DEFUN([CF_ENABLE_BROKEN_LINKER],[
1884
1885 AC_MSG_CHECKING(if you want broken-linker support code)
1886 AC_ARG_ENABLE(broken_linker,
1887         [  --enable-broken_linker  compile with broken-linker support code],
1888         [with_broken_linker=$enableval],
1889         [with_broken_linker=no])
1890 AC_MSG_RESULT($with_broken_linker)
1891
1892 : ${BROKEN_LINKER:=0}
1893 if test "x$with_broken_linker" = xyes ; then
1894         AC_DEFINE(BROKEN_LINKER,1,[Define to 1 to work around linkers which cannot link data-only modules])
1895         BROKEN_LINKER=1
1896 fi
1897 AC_SUBST(BROKEN_LINKER)
1898 ])dnl
1899 dnl ---------------------------------------------------------------------------
1900 dnl CF_ENABLE_PC_FILES version: 13 updated: 2015/11/01 05:27:39
1901 dnl ------------------
1902 dnl This is the "--enable-pc-files" option, which is available if there is a
1903 dnl pkg-config configuration on the local machine.
1904 AC_DEFUN([CF_ENABLE_PC_FILES],[
1905 AC_REQUIRE([CF_PKG_CONFIG])
1906 AC_REQUIRE([CF_WITH_PKG_CONFIG_LIBDIR])
1907
1908 if test "x$PKG_CONFIG" != xnone
1909 then
1910         AC_MSG_CHECKING(if we should install .pc files for $PKG_CONFIG)
1911 else
1912         AC_MSG_CHECKING(if we should install .pc files)
1913 fi
1914
1915 AC_ARG_ENABLE(pc-files,
1916         [  --enable-pc-files       generate and install .pc files for pkg-config],
1917         [enable_pc_files=$enableval],
1918         [enable_pc_files=no])
1919 AC_MSG_RESULT($enable_pc_files)
1920
1921 if test "x$enable_pc_files" != xno
1922 then
1923         MAKE_PC_FILES=
1924         case "x$PKG_CONFIG_LIBDIR" in
1925         (xno|xyes)
1926                 AC_MSG_WARN(no PKG_CONFIG_LIBDIR was found)
1927                 ;;
1928         (*)
1929                 CF_PATH_SYNTAX(PKG_CONFIG_LIBDIR)
1930                 ;;
1931         esac
1932 else
1933         MAKE_PC_FILES="#"
1934 fi
1935 AC_SUBST(MAKE_PC_FILES)
1936 ])dnl
1937 dnl ---------------------------------------------------------------------------
1938 dnl CF_ENABLE_RPATH version: 2 updated: 2010/03/27 18:39:42
1939 dnl ---------------
1940 dnl Check if the rpath option should be used, setting cache variable
1941 dnl cf_cv_enable_rpath if so.
1942 AC_DEFUN([CF_ENABLE_RPATH],
1943 [
1944 AC_MSG_CHECKING(if rpath option should be used)
1945 AC_ARG_ENABLE(rpath,
1946 [  --enable-rpath          use rpath option when generating shared libraries],
1947 [cf_cv_enable_rpath=$enableval],
1948 [cf_cv_enable_rpath=no])
1949 AC_MSG_RESULT($cf_cv_enable_rpath)
1950 ])dnl
1951 dnl ---------------------------------------------------------------------------
1952 dnl CF_ENABLE_STRING_HACKS version: 5 updated: 2016/10/08 17:34:11
1953 dnl ----------------------
1954 dnl On a few platforms, the compiler and/or loader nags with untruthful
1955 dnl comments stating that "most" uses of strcat/strcpy/sprintf are incorrect,
1956 dnl and implying that most uses of the recommended alternatives are correct.
1957 dnl
1958 dnl Factually speaking, no one has actually counted the number of uses of these
1959 dnl functions versus the total of incorrect uses.  Samples of a few thousand
1960 dnl instances are meaningless compared to the hundreds of millions of lines of
1961 dnl existing C code.
1962 dnl
1963 dnl strlcat/strlcpy are (as of 2012) non-standard, and are available on some
1964 dnl platforms, in implementations of varying quality.  Likewise, snprintf is
1965 dnl standard - but evolved through phases, and older implementations are likely
1966 dnl to yield surprising results, as documented in manpages on various systems.
1967 AC_DEFUN([CF_ENABLE_STRING_HACKS],
1968 [
1969 AC_MSG_CHECKING(if you want to work around bogus compiler/loader warnings)
1970 AC_ARG_ENABLE(string-hacks,
1971         [  --enable-string-hacks   work around bogus compiler/loader warnings],
1972         [with_string_hacks=$enableval],
1973         [with_string_hacks=no])
1974 AC_MSG_RESULT($with_string_hacks)
1975
1976 if test "x$with_string_hacks" = "xyes"; then
1977         AC_DEFINE(USE_STRING_HACKS,1,[Define to 1 to work around bogus compiler/loader warnings])
1978         AC_MSG_WARN(enabling string-hacks to work around bogus compiler/loader warnings)
1979         AC_CHECK_FUNC(strlcat,[
1980                 AC_DEFINE(HAVE_STRLCAT,1,[Define to 1 if we have strlcat function])
1981                 ],[
1982                 AC_CHECK_LIB(bsd,strlcat,[
1983                         CF_ADD_LIB(bsd)
1984                         AC_CHECK_HEADERS(bsd/string.h)
1985                         AC_DEFINE(HAVE_STRLCAT,1,[Define to 1 if we have strlcat function])
1986                         ])
1987                 ])
1988         AC_CHECK_FUNCS( strlcpy snprintf )
1989 fi
1990 ])dnl
1991 dnl ---------------------------------------------------------------------------
1992 dnl CF_ERRNO version: 5 updated: 1997/11/30 12:44:39
1993 dnl --------
1994 dnl Check if 'errno' is declared in <errno.h>
1995 AC_DEFUN([CF_ERRNO],
1996 [
1997 CF_CHECK_ERRNO(errno)
1998 ])dnl
1999 dnl ---------------------------------------------------------------------------
2000 dnl CF_ETIP_DEFINES version: 5 updated: 2012/02/18 17:51:07
2001 dnl ---------------
2002 dnl Test for conflicting definitions of exception in gcc 2.8.0, etc., between
2003 dnl math.h and builtin.h, only for ncurses
2004 AC_DEFUN([CF_ETIP_DEFINES],
2005 [
2006 AC_MSG_CHECKING(for special defines needed for etip.h)
2007 cf_save_CXXFLAGS="$CXXFLAGS"
2008 cf_result="none"
2009
2010 # etip.h includes ncurses.h which includes ncurses_dll.h
2011 # But ncurses_dll.h is generated - fix here.
2012 test -d include || mkdir include
2013 test -f include/ncurses_dll.h || sed -e 's/@NCURSES_WRAP_PREFIX@/'$NCURSES_WRAP_PREFIX'/g' ${srcdir}/include/ncurses_dll.h.in >include/ncurses_dll.h
2014
2015 for cf_math in "" MATH_H
2016 do
2017 for cf_excp in "" MATH_EXCEPTION
2018 do
2019         CXXFLAGS="$cf_save_CXXFLAGS -I${srcdir}/c++ -I${srcdir}/menu -Iinclude -I${srcdir}/include"
2020         test -n "$cf_math" && CXXFLAGS="$CXXFLAGS -DETIP_NEEDS_${cf_math}"
2021         test -n "$cf_excp" && CXXFLAGS="$CXXFLAGS -DETIP_NEEDS_${cf_excp}"
2022 AC_TRY_COMPILE([
2023 #include <etip.h.in>
2024 ],[],[
2025         test -n "$cf_math" && AC_DEFINE_UNQUOTED(ETIP_NEEDS_${cf_math})
2026         test -n "$cf_excp" && AC_DEFINE_UNQUOTED(ETIP_NEEDS_${cf_excp})
2027         cf_result="$cf_math $cf_excp"
2028         break 2
2029 ],[])
2030 done
2031 done
2032 AC_MSG_RESULT($cf_result)
2033 CXXFLAGS="$cf_save_CXXFLAGS"
2034 ])
2035 dnl ---------------------------------------------------------------------------
2036 dnl CF_FIND_LINKAGE version: 21 updated: 2018/06/20 20:23:13
2037 dnl ---------------
2038 dnl Find a library (specifically the linkage used in the code fragment),
2039 dnl searching for it if it is not already in the library path.
2040 dnl See also CF_ADD_SEARCHPATH.
2041 dnl
2042 dnl Parameters (4-on are optional):
2043 dnl     $1 = headers for library entrypoint
2044 dnl     $2 = code fragment for library entrypoint
2045 dnl     $3 = the library name without the "-l" option or ".so" suffix.
2046 dnl     $4 = action to perform if successful (default: update CPPFLAGS, etc)
2047 dnl     $5 = action to perform if not successful
2048 dnl     $6 = module name, if not the same as the library name
2049 dnl     $7 = extra libraries
2050 dnl
2051 dnl Sets these variables:
2052 dnl     $cf_cv_find_linkage_$3 - yes/no according to whether linkage is found
2053 dnl     $cf_cv_header_path_$3 - include-directory if needed
2054 dnl     $cf_cv_library_path_$3 - library-directory if needed
2055 dnl     $cf_cv_library_file_$3 - library-file if needed, e.g., -l$3
2056 AC_DEFUN([CF_FIND_LINKAGE],[
2057
2058 # If the linkage is not already in the $CPPFLAGS/$LDFLAGS configuration, these
2059 # will be set on completion of the AC_TRY_LINK below.
2060 cf_cv_header_path_$3=
2061 cf_cv_library_path_$3=
2062
2063 CF_MSG_LOG([Starting [FIND_LINKAGE]($3,$6)])
2064
2065 cf_save_LIBS="$LIBS"
2066
2067 AC_TRY_LINK([$1],[$2],[
2068         cf_cv_find_linkage_$3=yes
2069         cf_cv_header_path_$3=/usr/include
2070         cf_cv_library_path_$3=/usr/lib
2071 ],[
2072
2073 LIBS="-l$3 $7 $cf_save_LIBS"
2074
2075 AC_TRY_LINK([$1],[$2],[
2076         cf_cv_find_linkage_$3=yes
2077         cf_cv_header_path_$3=/usr/include
2078         cf_cv_library_path_$3=/usr/lib
2079         cf_cv_library_file_$3="-l$3"
2080 ],[
2081         cf_cv_find_linkage_$3=no
2082         LIBS="$cf_save_LIBS"
2083
2084         CF_VERBOSE(find linkage for $3 library)
2085         CF_MSG_LOG([Searching for headers in [FIND_LINKAGE]($3,$6)])
2086
2087         cf_save_CPPFLAGS="$CPPFLAGS"
2088         cf_test_CPPFLAGS="$CPPFLAGS"
2089
2090         CF_HEADER_PATH(cf_search,ifelse([$6],,[$3],[$6]))
2091         for cf_cv_header_path_$3 in $cf_search
2092         do
2093                 if test -d $cf_cv_header_path_$3 ; then
2094                         CF_VERBOSE(... testing $cf_cv_header_path_$3)
2095                         CPPFLAGS="$cf_save_CPPFLAGS"
2096                         CF_APPEND_TEXT(CPPFLAGS,-I$cf_cv_header_path_$3)
2097                         AC_TRY_COMPILE([$1],[$2],[
2098                                 CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
2099                                 cf_cv_find_linkage_$3=maybe
2100                                 cf_test_CPPFLAGS="$CPPFLAGS"
2101                                 break],[
2102                                 CPPFLAGS="$cf_save_CPPFLAGS"
2103                                 ])
2104                 fi
2105         done
2106
2107         if test "$cf_cv_find_linkage_$3" = maybe ; then
2108
2109                 CF_MSG_LOG([Searching for $3 library in [FIND_LINKAGE]($3,$6)])
2110
2111                 cf_save_LIBS="$LIBS"
2112                 cf_save_LDFLAGS="$LDFLAGS"
2113
2114                 ifelse([$6],,,[
2115                 CPPFLAGS="$cf_test_CPPFLAGS"
2116                 LIBS="-l$3 $7 $cf_save_LIBS"
2117                 AC_TRY_LINK([$1],[$2],[
2118                         CF_VERBOSE(... found $3 library in system)
2119                         cf_cv_find_linkage_$3=yes])
2120                         CPPFLAGS="$cf_save_CPPFLAGS"
2121                         LIBS="$cf_save_LIBS"
2122                         ])
2123
2124                 if test "$cf_cv_find_linkage_$3" != yes ; then
2125                         CF_LIBRARY_PATH(cf_search,$3)
2126                         for cf_cv_library_path_$3 in $cf_search
2127                         do
2128                                 if test -d $cf_cv_library_path_$3 ; then
2129                                         CF_VERBOSE(... testing $cf_cv_library_path_$3)
2130                                         CPPFLAGS="$cf_test_CPPFLAGS"
2131                                         LIBS="-l$3 $7 $cf_save_LIBS"
2132                                         LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_$3"
2133                                         AC_TRY_LINK([$1],[$2],[
2134                                         CF_VERBOSE(... found $3 library in $cf_cv_library_path_$3)
2135                                         cf_cv_find_linkage_$3=yes
2136                                         cf_cv_library_file_$3="-l$3"
2137                                         break],[
2138                                         CPPFLAGS="$cf_save_CPPFLAGS"
2139                                         LIBS="$cf_save_LIBS"
2140                                         LDFLAGS="$cf_save_LDFLAGS"
2141                                         ])
2142                                 fi
2143                         done
2144                         CPPFLAGS="$cf_save_CPPFLAGS"
2145                         LDFLAGS="$cf_save_LDFLAGS"
2146                 fi
2147
2148         else
2149                 cf_cv_find_linkage_$3=no
2150         fi
2151         ],$7)
2152 ])
2153
2154 LIBS="$cf_save_LIBS"
2155
2156 if test "$cf_cv_find_linkage_$3" = yes ; then
2157 ifelse([$4],,[
2158         CF_ADD_INCDIR($cf_cv_header_path_$3)
2159         CF_ADD_LIBDIR($cf_cv_library_path_$3)
2160         CF_ADD_LIB($3)
2161 ],[$4])
2162 else
2163 ifelse([$5],,AC_MSG_WARN(Cannot find $3 library),[$5])
2164 fi
2165 ])dnl
2166 dnl ---------------------------------------------------------------------------
2167 dnl CF_FIND_SUB_INCDIR version: 2 updated: 2015/04/17 21:13:04
2168 dnl ------------------
2169 dnl Find an include-directory with the given leaf-name.  This is useful for
2170 dnl example with FreeBSD ports, which use this convention to distinguish
2171 dnl different versions of the same port.
2172 AC_DEFUN([CF_FIND_SUB_INCDIR],[
2173         CF_SUBDIR_PATH(cf_search,$1,include)
2174         for cf_item in $cf_search
2175         do
2176                 case $cf_item in
2177                 (*/$1)
2178                         CF_ADD_INCDIR($cf_item)
2179                         ;;
2180                 esac
2181         done
2182 ])dnl
2183 dnl ---------------------------------------------------------------------------
2184 dnl CF_FIND_SUB_LIBDIR version: 2 updated: 2015/04/17 21:13:04
2185 dnl ------------------
2186 dnl Find a library-directory with the given leaf-name.  This is useful for
2187 dnl example with FreeBSD ports, which use this convention to distinguish
2188 dnl different versions of the same port.
2189 AC_DEFUN([CF_FIND_SUB_LIBDIR],[
2190         CF_SUBDIR_PATH(cf_search,$1,lib)
2191         for cf_item in $cf_search
2192         do
2193                 case $cf_item in
2194                 (*/$1)
2195                         CF_ADD_LIBDIR($cf_item)
2196                         ;;
2197                 esac
2198         done
2199 ])dnl
2200 dnl ---------------------------------------------------------------------------
2201 dnl CF_FIXUP_ADAFLAGS version: 2 updated: 2015/04/17 21:13:04
2202 dnl -----------------
2203 dnl make ADAFLAGS consistent with CFLAGS
2204 AC_DEFUN([CF_FIXUP_ADAFLAGS],[
2205         AC_MSG_CHECKING(optimization options for ADAFLAGS)
2206         case "$CFLAGS" in
2207         (*-g*)
2208                 CF_ADD_ADAFLAGS(-g)
2209                 ;;
2210         esac
2211         case "$CFLAGS" in
2212         (*-O*)
2213                 cf_O_flag=`echo "$CFLAGS" |sed -e 's/^.*-O/-O/' -e 's/[[        ]].*//'`
2214                 CF_ADD_ADAFLAGS($cf_O_flag)
2215                 ;;
2216         esac
2217         AC_MSG_RESULT($ADAFLAGS)
2218 ])dnl
2219 dnl ---------------------------------------------------------------------------
2220 dnl CF_FOPEN_BIN_R version: 2 updated: 2019/12/31 08:53:54
2221 dnl --------------
2222 dnl Check if fopen works when the "b" (binary) flag is added to the mode
2223 dnl parameter.  POSIX ignores the "b", which c89 specified.  Some very old
2224 dnl systems do not accept it.
2225 AC_DEFUN([CF_FOPEN_BIN_R],[
2226 AC_CACHE_CHECK(if fopen accepts explicit binary mode,cf_cv_fopen_bin_r,[
2227         AC_TRY_RUN([
2228 #include <stdio.h>
2229 int main(void) {
2230         FILE *fp = fopen("conftest.tmp", "wb");
2231         int rc = 0;
2232         if (fp != 0) {
2233                 int p, q;
2234                 for (p = 0; p < 256; ++p) {
2235                         fputc(p, fp);
2236                 }
2237                 fclose(fp);
2238                 fp = fopen("conftest.tmp", "rb");
2239                 if (fp != 0) {
2240                         for (p = 0; p < 256; ++p) {
2241                                 q = fgetc(fp);
2242                                 if (q != p) {
2243                                         rc = 1;
2244                                         break;
2245                                 }
2246                         }
2247                 } else {
2248                         rc = 1;
2249                 }
2250         } else {
2251                 rc = 1;
2252         }
2253         ${cf_cv_main_return:-return} (rc);
2254 }
2255 ],
2256                 [cf_cv_fopen_bin_r=yes],
2257                 [cf_cv_fopen_bin_r=no],
2258                 [cf_cv_fopen_bin_r=unknown])
2259 ])
2260 test "x$cf_cv_fopen_bin_r" != xno && AC_DEFINE(USE_FOPEN_BIN_R,1,[Define to 1 if fopen accepts explicit binary mode])
2261 ])dnl
2262 dnl ---------------------------------------------------------------------------
2263 dnl CF_FORGET_TOOL version: 1 updated: 2013/04/06 18:03:09
2264 dnl --------------
2265 dnl Forget that we saw the given tool.
2266 AC_DEFUN([CF_FORGET_TOOL],[
2267 unset ac_cv_prog_ac_ct_$1
2268 unset ac_ct_$1
2269 unset $1
2270 ])dnl
2271 dnl ---------------------------------------------------------------------------
2272 dnl CF_FUNC_DLSYM version: 4 updated: 2015/09/12 14:46:44
2273 dnl -------------
2274 dnl Test for dlsym() and related functions, as well as libdl.
2275 dnl
2276 dnl Sets
2277 dnl     $cf_have_dlsym
2278 dnl     $cf_have_libdl
2279 AC_DEFUN([CF_FUNC_DLSYM],[
2280 cf_have_dlsym=no
2281 AC_CHECK_FUNC(dlsym,cf_have_dlsym=yes,[
2282
2283 cf_have_libdl=no
2284 AC_CHECK_LIB(dl,dlsym,[
2285         cf_have_dlsym=yes
2286         cf_have_libdl=yes])])
2287
2288 if test "$cf_have_dlsym" = yes ; then
2289         test "$cf_have_libdl" = yes && { CF_ADD_LIB(dl) }
2290
2291         AC_MSG_CHECKING(whether able to link to dl*() functions)
2292         AC_TRY_LINK([#include <dlfcn.h>],[
2293                 void *obj;
2294                 if ((obj = dlopen("filename", 0)) != 0) {
2295                         if (dlsym(obj, "symbolname") == 0) {
2296                         dlclose(obj);
2297                         }
2298                 }],[
2299                 AC_DEFINE(HAVE_LIBDL,1,[Define to 1 if we have dl library])],[
2300                 AC_MSG_ERROR(Cannot link test program for libdl)])
2301         AC_MSG_RESULT(ok)
2302 else
2303         AC_MSG_ERROR(Cannot find dlsym function)
2304 fi
2305 ])
2306 dnl ---------------------------------------------------------------------------
2307 dnl CF_FUNC_MEMMOVE version: 9 updated: 2017/01/21 11:06:25
2308 dnl ---------------
2309 dnl Check for memmove, or a bcopy that can handle overlapping copy.  If neither
2310 dnl is found, add our own version of memmove to the list of objects.
2311 AC_DEFUN([CF_FUNC_MEMMOVE],
2312 [
2313 AC_CHECK_FUNC(memmove,,[
2314 AC_CHECK_FUNC(bcopy,[
2315         AC_CACHE_CHECK(if bcopy does overlapping moves,cf_cv_good_bcopy,[
2316                 AC_TRY_RUN([
2317 int main(void) {
2318         static char data[] = "abcdefghijklmnopqrstuwwxyz";
2319         char temp[40];
2320         bcopy(data, temp, sizeof(data));
2321         bcopy(temp+10, temp, 15);
2322         bcopy(temp+5, temp+15, 10);
2323         ${cf_cv_main_return:-return} (strcmp(temp, "klmnopqrstuwwxypqrstuwwxyz"));
2324 }
2325                 ],
2326                 [cf_cv_good_bcopy=yes],
2327                 [cf_cv_good_bcopy=no],
2328                 [cf_cv_good_bcopy=unknown])
2329                 ])
2330         ],[cf_cv_good_bcopy=no])
2331         if test "$cf_cv_good_bcopy" = yes ; then
2332                 AC_DEFINE(USE_OK_BCOPY,1,[Define to 1 to use bcopy when memmove is unavailable])
2333         else
2334                 AC_DEFINE(USE_MY_MEMMOVE,1,[Define to 1 to use replacement function when memmove is unavailable])
2335         fi
2336 ])])dnl
2337 dnl ---------------------------------------------------------------------------
2338 dnl CF_FUNC_NANOSLEEP version: 5 updated: 2017/01/21 11:06:25
2339 dnl -----------------
2340 dnl Check for existence of workable nanosleep() function.  Some systems, e.g.,
2341 dnl AIX 4.x, provide a non-working version.
2342 AC_DEFUN([CF_FUNC_NANOSLEEP],[
2343 AC_CACHE_CHECK(if nanosleep really works,cf_cv_func_nanosleep,[
2344 AC_TRY_RUN([
2345 #include <stdio.h>
2346 #include <errno.h>
2347 #include <time.h>
2348
2349 #ifdef HAVE_SYS_TIME_H
2350 #include <sys/time.h>
2351 #endif
2352
2353 int main(void) {
2354         struct timespec ts1, ts2;
2355         int code;
2356         ts1.tv_sec  = 0;
2357         ts1.tv_nsec = 750000000;
2358         ts2.tv_sec  = 0;
2359         ts2.tv_nsec = 0;
2360         errno = 0;
2361         code = nanosleep(&ts1, &ts2); /* on failure errno is ENOSYS. */
2362         ${cf_cv_main_return:-return}(code != 0);
2363 }
2364 ],
2365         [cf_cv_func_nanosleep=yes],
2366         [cf_cv_func_nanosleep=no],
2367         [cf_cv_func_nanosleep=unknown])])
2368
2369 test "$cf_cv_func_nanosleep" = "yes" && AC_DEFINE(HAVE_NANOSLEEP,1,[Define to 1 if we have nanosleep()])
2370 ])
2371 dnl ---------------------------------------------------------------------------
2372 dnl CF_FUNC_OPENPTY version: 5 updated: 2015/09/12 14:46:50
2373 dnl ---------------
2374 dnl Check for openpty() function, along with <pty.h> header.  It may need the
2375 dnl "util" library as well.
2376 AC_DEFUN([CF_FUNC_OPENPTY],
2377 [
2378 AC_CHECK_LIB(util,openpty,cf_cv_lib_util=yes,cf_cv_lib_util=no)
2379 AC_CACHE_CHECK(for openpty header,cf_cv_func_openpty,[
2380         cf_save_LIBS="$LIBS"
2381         test $cf_cv_lib_util = yes && { CF_ADD_LIB(util) }
2382         for cf_header in pty.h libutil.h util.h
2383         do
2384         AC_TRY_LINK([
2385 #include <$cf_header>
2386 ],[
2387         int x = openpty((int *)0, (int *)0, (char *)0,
2388                                    (struct termios *)0, (struct winsize *)0);
2389 ],[
2390                 cf_cv_func_openpty=$cf_header
2391                 break
2392 ],[
2393                 cf_cv_func_openpty=no
2394 ])
2395         done
2396         LIBS="$cf_save_LIBS"
2397 ])
2398 ])dnl
2399 dnl ---------------------------------------------------------------------------
2400 dnl CF_FUNC_POLL version: 9 updated: 2015/10/10 13:27:32
2401 dnl ------------
2402 dnl See if the poll function really works.  Some platforms have poll(), but
2403 dnl it does not work for terminals or files.
2404 AC_DEFUN([CF_FUNC_POLL],[
2405 tty 2>&1 >/dev/null || { AC_CHECK_FUNCS(posix_openpt) }
2406 AC_CACHE_CHECK(if poll really works,cf_cv_working_poll,[
2407 AC_TRY_RUN([
2408 #include <stdlib.h>
2409 #include <stdio.h>
2410 #include <unistd.h>
2411 #include <fcntl.h>
2412 #ifdef HAVE_POLL_H
2413 #include <poll.h>
2414 #else
2415 #include <sys/poll.h>
2416 #endif
2417 int main(void) {
2418         struct pollfd myfds;
2419         int ret;
2420
2421         /* check for Darwin bug with respect to "devices" */
2422         myfds.fd = open("/dev/null", 1);        /* O_WRONLY */
2423         if (myfds.fd < 0)
2424                 myfds.fd = 0;
2425         myfds.events = POLLIN;
2426         myfds.revents = 0;
2427
2428         ret = poll(&myfds, 1, 100);
2429
2430         if (ret < 0 || (myfds.revents & POLLNVAL)) {
2431                 ret = -1;
2432         } else {
2433                 int fd = 0;
2434                 if (!isatty(fd)) {
2435                         fd = open("/dev/tty", 2);       /* O_RDWR */
2436                 }
2437 #ifdef HAVE_POSIX_OPENPT
2438                 if (fd < 0) {
2439                         fd = posix_openpt(O_RDWR);
2440                 }
2441 #endif
2442
2443                 if (fd >= 0) {
2444                         /* also check with standard input */
2445                         myfds.fd = fd;
2446                         myfds.events = POLLIN;
2447                         myfds.revents = 0;
2448                         ret = poll(&myfds, 1, 100);
2449                 } else {
2450                         ret = -1;
2451                 }
2452         }
2453         ${cf_cv_main_return:-return}(ret < 0);
2454 }],
2455         [cf_cv_working_poll=yes],
2456         [cf_cv_working_poll=no],
2457         [cf_cv_working_poll=unknown])])
2458 test "$cf_cv_working_poll" = "yes" && AC_DEFINE(HAVE_WORKING_POLL,1,[Define to 1 if the poll function seems to work])
2459 ])dnl
2460 dnl ---------------------------------------------------------------------------
2461 dnl CF_FUNC_TERMIOS version: 3 updated: 2012/10/06 17:56:13
2462 dnl ---------------
2463 dnl Some old/broken variations define tcgetattr() only as a macro in
2464 dnl termio(s).h
2465 AC_DEFUN([CF_FUNC_TERMIOS],[
2466 AC_REQUIRE([CF_STRUCT_TERMIOS])
2467 AC_CACHE_CHECK(for tcgetattr, cf_cv_have_tcgetattr,[
2468 AC_TRY_LINK([
2469 #include <sys/types.h>
2470 #ifdef HAVE_UNISTD_H
2471 #include <unistd.h>
2472 #endif
2473 #ifdef HAVE_TERMIOS_H
2474 #include <termios.h>
2475 #define TTY struct termios
2476 #else
2477 #ifdef HAVE_TERMIO_H
2478 #include <termio.h>
2479 #define TTY struct termio
2480 #endif
2481 #endif
2482 ],[
2483 TTY foo;
2484 tcgetattr(1, &foo);],
2485 [cf_cv_have_tcgetattr=yes],
2486 [cf_cv_have_tcgetattr=no])])
2487 test "$cf_cv_have_tcgetattr" = yes && AC_DEFINE(HAVE_TCGETATTR,1,[Define to 1 if we have tcgetattr])
2488 ])dnl
2489 dnl ---------------------------------------------------------------------------
2490 dnl CF_FUNC_VSSCANF version: 6 updated: 2015/04/18 08:56:57
2491 dnl ---------------
2492 dnl Check for vsscanf() function, which is in c9x but generally not in earlier
2493 dnl versions of C.  It is in the GNU C library, and can often be simulated by
2494 dnl other functions.
2495 AC_DEFUN([CF_FUNC_VSSCANF],
2496 [
2497 AC_CACHE_CHECK(for vsscanf function or workaround,cf_cv_func_vsscanf,[
2498 AC_TRY_LINK([
2499 #include <stdarg.h>
2500 #include <stdio.h>],[
2501         va_list ap;
2502         vsscanf("from", "%d", ap)],[cf_cv_func_vsscanf=vsscanf],[
2503 AC_TRY_LINK([
2504 #include <stdarg.h>
2505 #include <stdio.h>],[
2506         FILE strbuf;
2507         char *str = "from";
2508
2509         strbuf._flag = _IOREAD;
2510         strbuf._ptr = strbuf._base = (unsigned char *) str;
2511         strbuf._cnt = strlen(str);
2512         strbuf._file = _NFILE;
2513         return (vfscanf(&strbuf, "%d", ap))],[cf_cv_func_vsscanf=vfscanf],[
2514 AC_TRY_LINK([
2515 #include <stdarg.h>
2516 #include <stdio.h>],[
2517         FILE strbuf;
2518         char *str = "from";
2519
2520         strbuf._flag = _IOREAD;
2521         strbuf._ptr = strbuf._base = (unsigned char *) str;
2522         strbuf._cnt = strlen(str);
2523         strbuf._file = _NFILE;
2524         return (_doscan(&strbuf, "%d", ap))],[cf_cv_func_vsscanf=_doscan],[
2525 cf_cv_func_vsscanf=no])])])])
2526
2527 case $cf_cv_func_vsscanf in
2528 (vsscanf) AC_DEFINE(HAVE_VSSCANF,1,[Define to 1 if we have vsscanf]);;
2529 (vfscanf) AC_DEFINE(HAVE_VFSCANF,1,[Define to 1 if we have vfscanf]);;
2530 (_doscan) AC_DEFINE(HAVE__DOSCAN,1,[Define to 1 if we have _doscan]);;
2531 esac
2532
2533 ])dnl
2534 dnl ---------------------------------------------------------------------------
2535 dnl CF_GCC_ATTRIBUTES version: 18 updated: 2020/03/10 18:53:47
2536 dnl -----------------
2537 dnl Test for availability of useful gcc __attribute__ directives to quiet
2538 dnl compiler warnings.  Though useful, not all are supported -- and contrary
2539 dnl to documentation, unrecognized directives cause older compilers to barf.
2540 AC_DEFUN([CF_GCC_ATTRIBUTES],
2541 [
2542 if test "$GCC" = yes
2543 then
2544 cat > conftest.i <<EOF
2545 #ifndef GCC_PRINTF
2546 #define GCC_PRINTF 0
2547 #endif
2548 #ifndef GCC_SCANF
2549 #define GCC_SCANF 0
2550 #endif
2551 #ifndef GCC_NORETURN
2552 #define GCC_NORETURN /* nothing */
2553 #endif
2554 #ifndef GCC_UNUSED
2555 #define GCC_UNUSED /* nothing */
2556 #endif
2557 EOF
2558 if test "$GCC" = yes
2559 then
2560         AC_CHECKING([for $CC __attribute__ directives])
2561 cat > conftest.$ac_ext <<EOF
2562 #line __oline__ "${as_me:-configure}"
2563 #include "confdefs.h"
2564 #include "conftest.h"
2565 #include "conftest.i"
2566 #if     GCC_PRINTF
2567 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
2568 #else
2569 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
2570 #endif
2571 #if     GCC_SCANF
2572 #define GCC_SCANFLIKE(fmt,var)  __attribute__((format(scanf,fmt,var)))
2573 #else
2574 #define GCC_SCANFLIKE(fmt,var)  /*nothing*/
2575 #endif
2576 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
2577 extern void oops(char *,...) GCC_PRINTFLIKE(1,2) GCC_NORETURN;
2578 extern void foo(void) GCC_NORETURN;
2579 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { (void)argc; (void)argv; return 0; }
2580 EOF
2581         cf_printf_attribute=no
2582         cf_scanf_attribute=no
2583         for cf_attribute in scanf printf unused noreturn
2584         do
2585                 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
2586                 cf_directive="__attribute__(($cf_attribute))"
2587                 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
2588
2589                 case $cf_attribute in
2590                 (printf)
2591                         cf_printf_attribute=yes
2592                         cat >conftest.h <<EOF
2593 #define GCC_$cf_ATTRIBUTE 1
2594 EOF
2595                         ;;
2596                 (scanf)
2597                         cf_scanf_attribute=yes
2598                         cat >conftest.h <<EOF
2599 #define GCC_$cf_ATTRIBUTE 1
2600 EOF
2601                         ;;
2602                 (*)
2603                         cat >conftest.h <<EOF
2604 #define GCC_$cf_ATTRIBUTE $cf_directive
2605 EOF
2606                         ;;
2607                 esac
2608
2609                 if AC_TRY_EVAL(ac_compile); then
2610                         test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
2611                         cat conftest.h >>confdefs.h
2612                         case $cf_attribute in
2613                         (noreturn)
2614                                 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
2615                                 ;;
2616                         (printf)
2617                                 cf_value='/* nothing */'
2618                                 if test "$cf_printf_attribute" != no ; then
2619                                         cf_value='__attribute__((format(printf,fmt,var)))'
2620                                         AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
2621                                 fi
2622                                 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
2623                                 ;;
2624                         (scanf)
2625                                 cf_value='/* nothing */'
2626                                 if test "$cf_scanf_attribute" != no ; then
2627                                         cf_value='__attribute__((format(scanf,fmt,var)))'
2628                                         AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
2629                                 fi
2630                                 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
2631                                 ;;
2632                         (unused)
2633                                 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
2634                                 ;;
2635                         esac
2636                 fi
2637         done
2638 else
2639         fgrep define conftest.i >>confdefs.h
2640 fi
2641 rm -rf conftest*
2642 fi
2643 ])dnl
2644 dnl ---------------------------------------------------------------------------
2645 dnl CF_GCC_VERSION version: 8 updated: 2019/09/07 13:38:36
2646 dnl --------------
2647 dnl Find version of gcc, and (because icc/clang pretend to be gcc without being
2648 dnl compatible), attempt to determine if icc/clang is actually used.
2649 AC_DEFUN([CF_GCC_VERSION],[
2650 AC_REQUIRE([AC_PROG_CC])
2651 GCC_VERSION=none
2652 if test "$GCC" = yes ; then
2653         AC_MSG_CHECKING(version of $CC)
2654         GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
2655         test -z "$GCC_VERSION" && GCC_VERSION=unknown
2656         AC_MSG_RESULT($GCC_VERSION)
2657 fi
2658 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
2659 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
2660 ])dnl
2661 dnl ---------------------------------------------------------------------------
2662 dnl CF_GCC_WARNINGS version: 37 updated: 2020/01/05 20:04:12
2663 dnl ---------------
2664 dnl Check if the compiler supports useful warning options.  There's a few that
2665 dnl we don't use, simply because they're too noisy:
2666 dnl
2667 dnl     -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
2668 dnl     -Winline (usually not worthwhile)
2669 dnl     -Wredundant-decls (system headers make this too noisy)
2670 dnl     -Wtraditional (combines too many unrelated messages, only a few useful)
2671 dnl     -Wwrite-strings (too noisy, but should review occasionally).  This
2672 dnl             is enabled for ncurses using "--enable-const".
2673 dnl     -pedantic
2674 dnl
2675 dnl Parameter:
2676 dnl     $1 is an optional list of gcc warning flags that a particular
2677 dnl             application might want to use, e.g., "no-unused" for
2678 dnl             -Wno-unused
2679 dnl Special:
2680 dnl     If $with_ext_const is "yes", add a check for -Wwrite-strings
2681 dnl
2682 AC_DEFUN([CF_GCC_WARNINGS],
2683 [
2684 AC_REQUIRE([CF_GCC_VERSION])
2685 if test "x$have_x" = xyes; then CF_CONST_X_STRING fi
2686 cat > conftest.$ac_ext <<EOF
2687 #line __oline__ "${as_me:-configure}"
2688 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
2689 EOF
2690 if test "$INTEL_COMPILER" = yes
2691 then
2692 # The "-wdXXX" options suppress warnings:
2693 # remark #1419: external declaration in primary source file
2694 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
2695 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
2696 # remark #193: zero used for undefined preprocessing identifier
2697 # remark #593: variable "curs_sb_left_arrow" was set but never used
2698 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
2699 # remark #869: parameter "tw" was never referenced
2700 # remark #981: operands are evaluated in unspecified order
2701 # warning #279: controlling expression is constant
2702
2703         AC_CHECKING([for $CC warning options])
2704         cf_save_CFLAGS="$CFLAGS"
2705         EXTRA_CFLAGS="-Wall"
2706         for cf_opt in \
2707                 wd1419 \
2708                 wd1683 \
2709                 wd1684 \
2710                 wd193 \
2711                 wd593 \
2712                 wd279 \
2713                 wd810 \
2714                 wd869 \
2715                 wd981
2716         do
2717                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
2718                 if AC_TRY_EVAL(ac_compile); then
2719                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
2720                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
2721                 fi
2722         done
2723         CFLAGS="$cf_save_CFLAGS"
2724 elif test "$GCC" = yes && test "$GCC_VERSION" != "unknown"
2725 then
2726         AC_CHECKING([for $CC warning options])
2727         cf_save_CFLAGS="$CFLAGS"
2728         EXTRA_CFLAGS=
2729         cf_warn_CONST=""
2730         test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
2731         cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
2732         test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
2733         for cf_opt in W Wall \
2734                 Wbad-function-cast \
2735                 Wcast-align \
2736                 Wcast-qual \
2737                 Wdeclaration-after-statement \
2738                 Wextra \
2739                 Winline \
2740                 Wmissing-declarations \
2741                 Wmissing-prototypes \
2742                 Wnested-externs \
2743                 Wpointer-arith \
2744                 Wshadow \
2745                 Wstrict-prototypes \
2746                 Wundef Wno-inline $cf_gcc_warnings $cf_warn_CONST $1
2747         do
2748                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
2749                 if AC_TRY_EVAL(ac_compile); then
2750                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
2751                         case $cf_opt in
2752                         (Winline)
2753                                 case $GCC_VERSION in
2754                                 ([[34]].*)
2755                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
2756                                         continue;;
2757                                 esac
2758                                 ;;
2759                         (Wpointer-arith)
2760                                 case $GCC_VERSION in
2761                                 ([[12]].*)
2762                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
2763                                         continue;;
2764                                 esac
2765                                 ;;
2766                         esac
2767                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
2768                 fi
2769         done
2770         CFLAGS="$cf_save_CFLAGS"
2771 fi
2772 rm -rf conftest*
2773
2774 AC_SUBST(EXTRA_CFLAGS)
2775 ])dnl
2776 dnl ---------------------------------------------------------------------------
2777 dnl CF_GETOPT_HEADER version: 6 updated: 2014/07/22 14:45:54
2778 dnl ----------------
2779 dnl Check for getopt's variables which are commonly defined in stdlib.h,
2780 dnl unistd.h or (nonstandard) in getopt.h
2781 AC_DEFUN([CF_GETOPT_HEADER],
2782 [
2783 AC_HAVE_HEADERS(unistd.h getopt.h)
2784 AC_CACHE_CHECK(for header declaring getopt variables,cf_cv_getopt_header,[
2785 cf_cv_getopt_header=none
2786 for cf_header in stdio.h stdlib.h unistd.h getopt.h
2787 do
2788 AC_TRY_COMPILE([
2789 #include <$cf_header>],
2790 [int x = optind; char *y = optarg],
2791 [cf_cv_getopt_header=$cf_header
2792  break])
2793 done
2794 ])
2795 if test $cf_cv_getopt_header != none ; then
2796         AC_DEFINE(HAVE_GETOPT_HEADER,1,[Define to 1 if getopt variables are declared in header])
2797 fi
2798 if test $cf_cv_getopt_header = getopt.h ; then
2799         AC_DEFINE(NEED_GETOPT_H,1,[Define to 1 if we must include getopt.h])
2800 fi
2801 ])dnl
2802 dnl ---------------------------------------------------------------------------
2803 dnl CF_GNATPREP_OPT_T version: 1 updated: 2014/08/02 18:37:25
2804 dnl -----------------
2805 AC_DEFUN([CF_GNATPREP_OPT_T],[
2806 AC_CACHE_CHECK(if GNATPREP supports -T option,cf_cv_gnatprep_opt_t,[
2807 cf_cv_gnatprep_opt_t=no
2808 gnatprep -T 2>/dev/null >/dev/null && cf_cv_gnatprep_opt_t=yes
2809 ])
2810 test "$cf_cv_gnatprep_opt_t" = yes && GNATPREP_OPTS="-T $GNATPREP_OPTS"
2811 AC_SUBST(GNATPREP_OPTS)
2812 ])dnl
2813 dnl ---------------------------------------------------------------------------
2814 dnl CF_GNAT_GENERICS version: 6 updated: 2020/07/04 19:30:27
2815 dnl ----------------
2816 AC_DEFUN([CF_GNAT_GENERICS],
2817 [
2818 AC_REQUIRE([CF_GNAT_VERSION])
2819
2820 AC_MSG_CHECKING(if GNAT supports generics)
2821 case $cf_cv_gnat_version in
2822 (3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|[[1-9]][[0-9]].[[0-9]]*|20[[0-9]][[0-9]])
2823         cf_gnat_generics=yes
2824         ;;
2825 (*)
2826         cf_gnat_generics=no
2827         ;;
2828 esac
2829 AC_MSG_RESULT($cf_gnat_generics)
2830
2831 if test "$cf_gnat_generics" = yes
2832 then
2833         cf_compile_generics=generics
2834         cf_generic_objects="\${GENOBJS}"
2835 else
2836         cf_compile_generics=
2837         cf_generic_objects=
2838 fi
2839
2840 AC_SUBST(cf_compile_generics)
2841 AC_SUBST(cf_generic_objects)
2842 ])dnl
2843 dnl ---------------------------------------------------------------------------
2844 dnl CF_GNAT_PROJECTS version: 10 updated: 2019/12/31 08:53:54
2845 dnl ----------------
2846 dnl GNAT projects are configured with ".gpr" project files.
2847 dnl GNAT libraries are a further development, using the project feature.
2848 AC_DEFUN([CF_GNAT_PROJECTS],
2849 [
2850 AC_REQUIRE([CF_GNAT_VERSION])
2851 AC_REQUIRE([CF_DISABLE_GNAT_PROJECTS])
2852
2853 cf_gnat_libraries=no
2854 cf_gnat_projects=no
2855
2856 if test "$enable_gnat_projects" != no ; then
2857 AC_MSG_CHECKING(if GNAT supports project files)
2858 case $cf_cv_gnat_version in
2859 (3.[[0-9]]*)
2860         ;;
2861 (*)
2862         case $cf_cv_system_name in
2863         (cygwin*|msys*)
2864                 ;;
2865         (*)
2866                 rm -rf conftest* *~conftest*
2867                 if mkdir conftest.src conftest.bin conftest.lib
2868                 then
2869                         cd conftest.src
2870                         rm -rf conftest* *~conftest*
2871                         cat >>library.gpr <<CF_EOF
2872 project Library is
2873   Kind := External ("LIB_KIND");
2874   for Library_Name use "ConfTest";
2875   for Object_Dir use ".";
2876   for Library_ALI_Dir use External("LIBRARY_DIR");
2877   for Library_Version use External ("SONAME");
2878   for Library_Kind use Kind;
2879   for Library_Dir use External("BUILD_DIR");
2880   Source_Dir := External ("SOURCE_DIR");
2881   for Source_Dirs use (Source_Dir);
2882 end Library;
2883 CF_EOF
2884                         cat >>confpackage.ads <<CF_EOF
2885 package ConfPackage is
2886    procedure conftest;
2887 end ConfPackage;
2888 CF_EOF
2889                         cat >>confpackage.adb <<CF_EOF
2890 with Text_IO;
2891 package body ConfPackage is
2892    procedure conftest is
2893    begin
2894       Text_IO.Put ("Hello World");
2895       Text_IO.New_Line;
2896    end conftest;
2897 end ConfPackage;
2898 CF_EOF
2899                         if ( $cf_ada_make $ADAFLAGS \
2900                                         -Plibrary.gpr \
2901                                         -XBUILD_DIR=`cd ../conftest.bin;pwd` \
2902                                         -XLIBRARY_DIR=`cd ../conftest.lib;pwd` \
2903                                         -XSOURCE_DIR=`pwd` \
2904                                         -XSONAME=libConfTest.so.1 \
2905                                         -XLIB_KIND=static 1>&AC_FD_CC 2>&1 ) ; then
2906                                 cf_gnat_projects=yes
2907                         fi
2908                         cd ..
2909                 fi
2910                 if test -f conftest.lib/confpackage.ali
2911                 then
2912                         cf_gnat_libraries=yes
2913                 fi
2914                 rm -rf conftest* *~conftest*
2915                 ;;
2916         esac
2917         ;;
2918 esac
2919 AC_MSG_RESULT($cf_gnat_projects)
2920 fi # enable_gnat_projects
2921
2922 if test $cf_gnat_projects = yes
2923 then
2924         AC_MSG_CHECKING(if GNAT supports libraries)
2925         AC_MSG_RESULT($cf_gnat_libraries)
2926 fi
2927
2928 if test "$cf_gnat_projects" = yes
2929 then
2930         USE_OLD_MAKERULES="#"
2931         USE_GNAT_PROJECTS=""
2932 else
2933         USE_OLD_MAKERULES=""
2934         USE_GNAT_PROJECTS="#"
2935 fi
2936
2937 if test "$cf_gnat_libraries" = yes
2938 then
2939         USE_GNAT_LIBRARIES=""
2940 else
2941         USE_GNAT_LIBRARIES="#"
2942 fi
2943
2944 AC_SUBST(USE_OLD_MAKERULES)
2945 AC_SUBST(USE_GNAT_PROJECTS)
2946 AC_SUBST(USE_GNAT_LIBRARIES)
2947 ])dnl
2948 dnl ---------------------------------------------------------------------------
2949 dnl CF_GNAT_SIGINT version: 1 updated: 2011/03/27 20:07:59
2950 dnl --------------
2951 dnl Check if gnat supports SIGINT, and presumably tasking.  For the latter, it
2952 dnl is noted that gnat may compile a tasking unit even for configurations which
2953 dnl fail at runtime.
2954 AC_DEFUN([CF_GNAT_SIGINT],[
2955 AC_CACHE_CHECK(if GNAT supports SIGINT,cf_cv_gnat_sigint,[
2956 CF_GNAT_TRY_LINK([with Ada.Interrupts.Names;
2957
2958 package ConfTest is
2959
2960    pragma Warnings (Off);  --  the next pragma exists since 3.11p
2961    pragma Unreserve_All_Interrupts;
2962    pragma Warnings (On);
2963
2964    protected Process is
2965       procedure Stop;
2966       function Continue return Boolean;
2967       pragma Attach_Handler (Stop, Ada.Interrupts.Names.SIGINT);
2968    private
2969       Done : Boolean := False;
2970    end Process;
2971
2972 end ConfTest;],
2973 [package body ConfTest is
2974    protected body Process is
2975       procedure Stop is
2976       begin
2977          Done := True;
2978       end Stop;
2979       function Continue return Boolean is
2980       begin
2981          return not Done;
2982       end Continue;
2983    end Process;
2984 end ConfTest;],
2985         [cf_cv_gnat_sigint=yes],
2986         [cf_cv_gnat_sigint=no])])
2987
2988 if test $cf_cv_gnat_sigint = yes ; then
2989         USE_GNAT_SIGINT=""
2990 else
2991         USE_GNAT_SIGINT="#"
2992 fi
2993 AC_SUBST(USE_GNAT_SIGINT)
2994 ])dnl
2995 dnl ---------------------------------------------------------------------------
2996 dnl CF_GNAT_TRY_LINK version: 3 updated: 2011/03/19 14:47:45
2997 dnl ----------------
2998 dnl Verify that a test program compiles/links with GNAT.
2999 dnl $cf_ada_make is set to the program that compiles/links
3000 dnl $ADAFLAGS may be set to the GNAT flags.
3001 dnl
3002 dnl $1 is the text of the spec
3003 dnl $2 is the text of the body
3004 dnl $3 is the shell command to execute if successful
3005 dnl $4 is the shell command to execute if not successful
3006 AC_DEFUN([CF_GNAT_TRY_LINK],
3007 [
3008 rm -rf conftest* *~conftest*
3009 cat >>conftest.ads <<CF_EOF
3010 $1
3011 CF_EOF
3012 cat >>conftest.adb <<CF_EOF
3013 $2
3014 CF_EOF
3015 if ( $cf_ada_make $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
3016 ifelse($3,,      :,[      $3])
3017 ifelse($4,,,[else
3018    $4])
3019 fi
3020 rm -rf conftest* *~conftest*
3021 ])dnl
3022 dnl ---------------------------------------------------------------------------
3023 dnl CF_GNAT_TRY_RUN version: 5 updated: 2011/03/19 14:47:45
3024 dnl ---------------
3025 dnl Verify that a test program compiles and runs with GNAT
3026 dnl $cf_ada_make is set to the program that compiles/links
3027 dnl $ADAFLAGS may be set to the GNAT flags.
3028 dnl
3029 dnl $1 is the text of the spec
3030 dnl $2 is the text of the body
3031 dnl $3 is the shell command to execute if successful
3032 dnl $4 is the shell command to execute if not successful
3033 AC_DEFUN([CF_GNAT_TRY_RUN],
3034 [
3035 rm -rf conftest* *~conftest*
3036 cat >>conftest.ads <<CF_EOF
3037 $1
3038 CF_EOF
3039 cat >>conftest.adb <<CF_EOF
3040 $2
3041 CF_EOF
3042 if ( $cf_ada_make $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
3043    if ( ./conftest 1>&AC_FD_CC 2>&1 ) ; then
3044 ifelse($3,,      :,[      $3])
3045 ifelse($4,,,[   else
3046       $4])
3047    fi
3048 ifelse($4,,,[else
3049    $4])
3050 fi
3051 rm -rf conftest* *~conftest*
3052 ])dnl
3053 dnl ---------------------------------------------------------------------------
3054 dnl CF_GNAT_VERSION version: 22 updated: 2019/12/31 08:53:54
3055 dnl ---------------
3056 dnl $1 = cache variable to update
3057 dnl $2 = program name
3058 dnl Verify version of GNAT or related tool
3059 AC_DEFUN([CF_GNAT_VERSION],
3060 [
3061 AC_CACHE_CHECK(for ifelse($2,,gnat,$2) version, cf_cv_gnat_version,[
3062 cf_cv_gnat_version=`ifelse($2,,${cf_ada_make:-gnatmake},$2) --version 2>&1 | \
3063         grep '[[0-9]].[[0-9]][[0-9]]*' |\
3064         sed -e '2,$d' -e 's/[[^0-9 \.]]//g' -e 's/^[[ ]]*//' -e 's/ .*//'`
3065 ])
3066 test -z "$cf_cv_gnat_version" && cf_cv_gnat_version=no
3067 ifelse($1,,,[eval $1=$cf_cv_gnat_version; unset cf_cv_gnat_version])
3068 ])dnl
3069 dnl ---------------------------------------------------------------------------
3070 dnl CF_GNU_SOURCE version: 10 updated: 2018/12/10 20:09:41
3071 dnl -------------
3072 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
3073 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend.  This is a defect
3074 dnl (or misfeature) of glibc2, which breaks portability of many applications,
3075 dnl since it is interwoven with GNU extensions.
3076 dnl
3077 dnl Well, yes we could work around it...
3078 dnl
3079 dnl Parameters:
3080 dnl     $1 is the nominal value for _XOPEN_SOURCE
3081 AC_DEFUN([CF_GNU_SOURCE],
3082 [
3083 cf_gnu_xopen_source=ifelse($1,,500,$1)
3084
3085 AC_CACHE_CHECK(if this is the GNU C library,cf_cv_gnu_library,[
3086 AC_TRY_COMPILE([#include <sys/types.h>],[
3087         #if __GLIBC__ > 0 && __GLIBC_MINOR__ >= 0
3088                 return 0;
3089         #elif __NEWLIB__ > 0 && __NEWLIB_MINOR__ >= 0
3090                 return 0;
3091         #else
3092         #       error not GNU C library
3093         #endif],
3094         [cf_cv_gnu_library=yes],
3095         [cf_cv_gnu_library=no])
3096 ])
3097
3098 if test x$cf_cv_gnu_library = xyes; then
3099
3100         # With glibc 2.19 (13 years after this check was begun), _DEFAULT_SOURCE
3101         # was changed to help a little.  newlib incorporated the change about 4
3102         # years later.
3103         AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
3104                 cf_save="$CPPFLAGS"
3105                 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
3106                 AC_TRY_COMPILE([#include <sys/types.h>],[
3107                         #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
3108                                 return 0;
3109                         #elif (__NEWLIB__ == 2 && __NEWLIB_MINOR__ >= 4) || (__GLIBC__ > 3)
3110                                 return 0;
3111                         #else
3112                         #       error GNU C library __GLIBC__.__GLIBC_MINOR__ is too old
3113                         #endif],
3114                         [cf_cv_gnu_library_219=yes],
3115                         [cf_cv_gnu_library_219=no])
3116                 CPPFLAGS="$cf_save"
3117         ])
3118
3119         if test "x$cf_cv_gnu_library_219" = xyes; then
3120                 cf_save="$CPPFLAGS"
3121                 AC_CACHE_CHECK(if _XOPEN_SOURCE=$cf_gnu_xopen_source works with _DEFAULT_SOURCE,cf_cv_gnu_dftsrc_219,[
3122                         CF_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
3123                         AC_TRY_COMPILE([
3124                                 #include <limits.h>
3125                                 #include <sys/types.h>
3126                                 ],[
3127                                 #if (_XOPEN_SOURCE >= $cf_gnu_xopen_source) && (MB_LEN_MAX > 1)
3128                                         return 0;
3129                                 #else
3130                                 #       error GNU C library is too old
3131                                 #endif],
3132                                 [cf_cv_gnu_dftsrc_219=yes],
3133                                 [cf_cv_gnu_dftsrc_219=no])
3134                         ])
3135                 test "x$cf_cv_gnu_dftsrc_219" = "xyes" || CPPFLAGS="$cf_save"
3136         else
3137                 cf_cv_gnu_dftsrc_219=maybe
3138         fi
3139
3140         if test "x$cf_cv_gnu_dftsrc_219" != xyes; then
3141
3142                 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
3143                 AC_TRY_COMPILE([#include <sys/types.h>],[
3144                         #ifndef _XOPEN_SOURCE
3145                         #error  expected _XOPEN_SOURCE to be defined
3146                         #endif],
3147                         [cf_cv_gnu_source=no],
3148                         [cf_save="$CPPFLAGS"
3149                          CF_ADD_CFLAGS(-D_GNU_SOURCE)
3150                          AC_TRY_COMPILE([#include <sys/types.h>],[
3151                                 #ifdef _XOPEN_SOURCE
3152                                 #error  expected _XOPEN_SOURCE to be undefined
3153                                 #endif],
3154                                 [cf_cv_gnu_source=no],
3155                                 [cf_cv_gnu_source=yes])
3156                         CPPFLAGS="$cf_save"
3157                         ])
3158                 ])
3159
3160                 if test "$cf_cv_gnu_source" = yes
3161                 then
3162                 AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
3163                         CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
3164                         AC_TRY_COMPILE([#include <sys/types.h>],[
3165                                 #ifdef _DEFAULT_SOURCE
3166                                 #error  expected _DEFAULT_SOURCE to be undefined
3167                                 #endif],
3168                                 [cf_cv_default_source=no],
3169                                 [cf_cv_default_source=yes])
3170                         ])
3171                         if test "$cf_cv_default_source" = yes
3172                         then
3173                                 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
3174                         fi
3175                 fi
3176         fi
3177
3178 fi
3179 ])dnl
3180 dnl ---------------------------------------------------------------------------
3181 dnl CF_GPP_LIBRARY version: 12 updated: 2015/04/17 21:13:04
3182 dnl --------------
3183 dnl If we're trying to use g++, test if libg++ is installed (a rather common
3184 dnl problem :-).  If we have the compiler but no library, we'll be able to
3185 dnl configure, but won't be able to build the c++ demo program.
3186 AC_DEFUN([CF_GPP_LIBRARY],
3187 [
3188 cf_cxx_library=unknown
3189 case $cf_cv_system_name in
3190 (os2*)
3191         cf_gpp_libname=gpp
3192         ;;
3193 (*)
3194         cf_gpp_libname=g++
3195         ;;
3196 esac
3197 if test "$GXX" = yes; then
3198         AC_MSG_CHECKING([for lib$cf_gpp_libname])
3199         cf_save="$LIBS"
3200         CF_ADD_LIB($cf_gpp_libname)
3201         AC_TRY_LINK([
3202 #include <$cf_gpp_libname/builtin.h>
3203         ],
3204         [two_arg_error_handler_t foo2 = lib_error_handler],
3205         [cf_cxx_library=yes
3206          CF_ADD_LIB($cf_gpp_libname,CXXLIBS)
3207          if test "$cf_gpp_libname" = cpp ; then
3208             AC_DEFINE(HAVE_GPP_BUILTIN_H,1,[Define to 1 if we have gpp builtin.h])
3209          else
3210             AC_DEFINE(HAVE_GXX_BUILTIN_H,1,[Define to 1 if we have g++ builtin.h])
3211          fi],
3212         [AC_TRY_LINK([
3213 #include <builtin.h>
3214         ],
3215         [two_arg_error_handler_t foo2 = lib_error_handler],
3216         [cf_cxx_library=yes
3217          CF_ADD_LIB($cf_gpp_libname,CXXLIBS)
3218          AC_DEFINE(HAVE_BUILTIN_H,1,[Define to 1 if we have builtin.h])],
3219         [cf_cxx_library=no])])
3220         LIBS="$cf_save"
3221         AC_MSG_RESULT($cf_cxx_library)
3222 fi
3223 ])dnl
3224 dnl ---------------------------------------------------------------------------
3225 dnl CF_GXX_VERSION version: 8 updated: 2017/02/11 14:48:57
3226 dnl --------------
3227 dnl Check for version of g++
3228 AC_DEFUN([CF_GXX_VERSION],[
3229 AC_REQUIRE([AC_PROG_CPP])
3230 GXX_VERSION=none
3231 if test "$GXX" = yes; then
3232         AC_MSG_CHECKING(version of ${CXX:-g++})
3233         GXX_VERSION="`${CXX:-g++} --version| sed -e '2,$d' -e 's/^.*(GCC) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
3234         if test -z "$GXX_VERSION"
3235         then
3236                 GXX_VERSION=unknown
3237                 GXX=no
3238         fi
3239         AC_MSG_RESULT($GXX_VERSION)
3240 fi
3241 ])dnl
3242 dnl ---------------------------------------------------------------------------
3243 dnl CF_GXX_WARNINGS version: 9 updated: 2015/04/17 21:13:04
3244 dnl ---------------
3245 dnl Check if the compiler supports useful warning options.
3246 dnl
3247 dnl Most of gcc's options apply to g++, except:
3248 dnl     -Wbad-function-cast
3249 dnl     -Wmissing-declarations
3250 dnl     -Wnested-externs
3251 dnl
3252 dnl Omit a few (for now):
3253 dnl     -Winline
3254 dnl
3255 dnl Parameter:
3256 dnl     $1 is an optional list of g++ warning flags that a particular
3257 dnl             application might want to use, e.g., "no-unused" for
3258 dnl             -Wno-unused
3259 dnl Special:
3260 dnl     If $with_ext_const is "yes", add a check for -Wwrite-strings
3261 dnl
3262 AC_DEFUN([CF_GXX_WARNINGS],
3263 [
3264
3265 CF_INTEL_COMPILER(GXX,INTEL_CPLUSPLUS,CXXFLAGS)
3266 CF_CLANG_COMPILER(GXX,CLANG_CPLUSPLUS,CXXFLAGS)
3267
3268 AC_REQUIRE([CF_GXX_VERSION])
3269
3270 AC_LANG_SAVE
3271 AC_LANG_CPLUSPLUS
3272
3273 cat > conftest.$ac_ext <<EOF
3274 #line __oline__ "configure"
3275 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
3276 EOF
3277
3278 if test "$INTEL_CPLUSPLUS" = yes
3279 then
3280 # The "-wdXXX" options suppress warnings:
3281 # remark #1419: external declaration in primary source file
3282 # remark #1682: implicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
3283 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
3284 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
3285 # remark #193: zero used for undefined preprocessing identifier
3286 # remark #593: variable "curs_sb_left_arrow" was set but never used
3287 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
3288 # remark #869: parameter "tw" was never referenced
3289 # remark #981: operands are evaluated in unspecified order
3290 # warning #269: invalid format string conversion
3291
3292         AC_CHECKING([for $CC warning options])
3293         cf_save_CXXFLAGS="$CXXFLAGS"
3294         EXTRA_CXXFLAGS="-Wall"
3295         for cf_opt in \
3296                 wd1419 \
3297                 wd1682 \
3298                 wd1683 \
3299                 wd1684 \
3300                 wd193 \
3301                 wd279 \
3302                 wd593 \
3303                 wd810 \
3304                 wd869 \
3305                 wd981
3306         do
3307                 CXXFLAGS="$cf_save_CXXFLAGS $EXTRA_CXXFLAGS -$cf_opt"
3308                 if AC_TRY_EVAL(ac_compile); then
3309                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
3310                         EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS -$cf_opt"
3311                 fi
3312         done
3313         CXXFLAGS="$cf_save_CXXFLAGS"
3314
3315 elif test "$GXX" = yes
3316 then
3317         AC_CHECKING([for $CXX warning options])
3318         cf_save_CXXFLAGS="$CXXFLAGS"
3319         EXTRA_CXXFLAGS="-W -Wall"
3320         cf_gxx_extra_warnings=""
3321         test "$with_ext_const" = yes && cf_gxx_extra_warnings="Wwrite-strings"
3322         case "$GCC_VERSION" in
3323         ([[1-2]].*)
3324                 ;;
3325         (*)
3326                 cf_gxx_extra_warnings="$cf_gxx_extra_warnings Weffc++"
3327                 ;;
3328         esac
3329         for cf_opt in \
3330                 Wabi \
3331                 fabi-version=0 \
3332                 Wextra \
3333                 Wignored-qualifiers \
3334                 Wlogical-op \
3335                 Woverloaded-virtual \
3336                 Wsign-promo \
3337                 Wsynth \
3338                 Wold-style-cast \
3339                 Wcast-align \
3340                 Wcast-qual \
3341                 Wpointer-arith \
3342                 Wshadow \
3343                 Wundef $cf_gxx_extra_warnings $1
3344         do
3345                 CXXFLAGS="$cf_save_CXXFLAGS $EXTRA_CXXFLAGS -Werror -$cf_opt"
3346                 if AC_TRY_EVAL(ac_compile); then
3347                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
3348                         EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS -$cf_opt"
3349                 else
3350                         test -n "$verbose" && AC_MSG_RESULT(... no -$cf_opt)
3351                 fi
3352         done
3353         CXXFLAGS="$cf_save_CXXFLAGS"
3354 fi
3355
3356 rm -rf conftest*
3357 AC_LANG_RESTORE
3358 AC_SUBST(EXTRA_CXXFLAGS)
3359 ])dnl
3360 dnl ---------------------------------------------------------------------------
3361 dnl CF_HASHED_DB version: 7 updated: 2015/04/18 08:56:57
3362 dnl ------------
3363 dnl Look for an instance of the Berkeley hashed database.
3364 dnl
3365 dnl $1 = optional parameter, to specify install-prefix for the database.
3366 AC_DEFUN([CF_HASHED_DB],
3367 [
3368 ifelse([$1],,,[
3369 case $1 in
3370 (yes|*able*)
3371         ;;
3372 (*)
3373         if test -d "$1" ; then
3374                 CF_ADD_INCDIR($1/include)
3375                 CF_ADD_LIBDIR($1/lib)
3376         else
3377                 case "$1" in
3378                 (./*|../*|/*)
3379                         AC_MSG_WARN(no such directory $1)
3380                         ;;
3381                 (*)
3382                         CF_FIND_SUB_INCDIR($1)
3383                         CF_FIND_SUB_LIBDIR($1)
3384                         ;;
3385                 esac
3386         fi
3387 esac
3388 ])
3389 AC_CHECK_HEADER(db.h,[
3390 CF_HASHED_DB_VERSION
3391 if test "$cf_cv_hashed_db_version" = unknown ; then
3392         AC_MSG_ERROR(Cannot determine version of db)
3393 else
3394         CF_HASHED_DB_LIBS
3395         if test "$cf_cv_hashed_db_libs" = unknown ; then
3396                 AC_MSG_ERROR(Cannot determine library for db)
3397         elif test "$cf_cv_hashed_db_libs" != default ; then
3398                 CF_ADD_LIB($cf_cv_hashed_db_libs)
3399         fi
3400 fi
3401 ],[
3402         AC_MSG_ERROR(Cannot find db.h)
3403 ])
3404 ])dnl
3405 dnl ---------------------------------------------------------------------------
3406 dnl CF_HASHED_DB_LIBS version: 9 updated: 2010/05/29 16:31:02
3407 dnl -----------------
3408 dnl Given that we have the header and version for hashed database, find the
3409 dnl library information.
3410 AC_DEFUN([CF_HASHED_DB_LIBS],
3411 [
3412 AC_CACHE_CHECK(for db libraries, cf_cv_hashed_db_libs,[
3413 cf_cv_hashed_db_libs=unknown
3414 for cf_db_libs in "" db$cf_cv_hashed_db_version db-$cf_cv_hashed_db_version db ''
3415 do
3416         cf_save_libs="$LIBS"
3417         if test -n "$cf_db_libs"; then
3418                 CF_ADD_LIB($cf_db_libs)
3419         fi
3420         CF_MSG_LOG(checking for library "$cf_db_libs")
3421         AC_TRY_LINK([
3422 $ac_includes_default
3423 #include <db.h>
3424 ],[
3425         char *path = "/tmp/foo";
3426 #ifdef DB_VERSION_MAJOR
3427 #if DB_VERSION_MAJOR >= 4
3428         DB *result = 0;
3429         db_create(&result, NULL, 0);
3430         result->open(result,
3431                 NULL,
3432                 path,
3433                 path,
3434                 DB_HASH,
3435                 DB_CREATE,
3436                 0644);
3437 #elif DB_VERSION_MAJOR >= 3
3438         DB *result = 0;
3439         db_create(&result, NULL, 0);
3440         result->open(result,
3441                 path,
3442                 path,
3443                 DB_HASH,
3444                 DB_CREATE,
3445                 0644);
3446 #elif DB_VERSION_MAJOR >= 2
3447         DB *result = 0;
3448         db_open(path,
3449                 DB_HASH,
3450                 DB_CREATE,
3451                 0644,
3452                 (DB_ENV *) 0,
3453                 (DB_INFO *) 0,
3454                 &result);
3455 #endif /* DB_VERSION_MAJOR */
3456 #else
3457         DB *result = dbopen(path,
3458                      2,
3459                      0644,
3460                      DB_HASH,
3461                      0);
3462 #endif
3463         ${cf_cv_main_return:-return}(result != 0)
3464 ],[
3465         if test -n "$cf_db_libs" ; then
3466                 cf_cv_hashed_db_libs=$cf_db_libs
3467         else
3468                 cf_cv_hashed_db_libs=default
3469         fi
3470         LIBS="$cf_save_libs"
3471         break
3472 ])
3473         LIBS="$cf_save_libs"
3474 done
3475 ])
3476 ])dnl
3477 dnl ---------------------------------------------------------------------------
3478 dnl CF_HASHED_DB_VERSION version: 4 updated: 2014/04/12 16:47:01
3479 dnl --------------------
3480 dnl Given that we have the header file for hashed database, find the version
3481 dnl information.
3482 AC_DEFUN([CF_HASHED_DB_VERSION],
3483 [
3484 AC_CACHE_CHECK(for version of db, cf_cv_hashed_db_version,[
3485 cf_cv_hashed_db_version=unknown
3486
3487 for cf_db_version in 1 2 3 4 5 6
3488 do
3489         CF_MSG_LOG(checking for db version $cf_db_version)
3490         AC_TRY_COMPILE([
3491 $ac_includes_default
3492 #include <db.h>
3493
3494 #ifdef DB_VERSION_MAJOR
3495         /* db2 (DB_VERSION_MAJOR=2) has also DB_VERSION_MINOR, tested with 7 */
3496 #if $cf_db_version == DB_VERSION_MAJOR
3497         /* ok */
3498 #else
3499         make an error
3500 #endif
3501 #else
3502 #if $cf_db_version == 1
3503         /* ok: assuming this is DB 1.8.5 */
3504 #else
3505         make an error
3506 #endif
3507 #endif
3508 ],[DBT *foo = 0],[
3509         cf_cv_hashed_db_version=$cf_db_version
3510         break
3511         ])
3512 done
3513 ])
3514 ])dnl
3515 dnl ---------------------------------------------------------------------------
3516 dnl CF_HEADER_PATH version: 13 updated: 2015/04/15 19:08:48
3517 dnl --------------
3518 dnl Construct a search-list of directories for a nonstandard header-file
3519 dnl
3520 dnl Parameters
3521 dnl     $1 = the variable to return as result
3522 dnl     $2 = the package name
3523 AC_DEFUN([CF_HEADER_PATH],
3524 [
3525 $1=
3526
3527 # collect the current set of include-directories from compiler flags
3528 cf_header_path_list=""
3529 if test -n "${CFLAGS}${CPPFLAGS}" ; then
3530         for cf_header_path in $CPPFLAGS $CFLAGS
3531         do
3532                 case $cf_header_path in
3533                 (-I*)
3534                         cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
3535                         CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
3536                         cf_header_path_list="$cf_header_path_list [$]$1"
3537                         ;;
3538                 esac
3539         done
3540 fi
3541
3542 # add the variations for the package we are looking for
3543 CF_SUBDIR_PATH($1,$2,include)
3544
3545 test "$includedir" != NONE && \
3546 test "$includedir" != "/usr/include" && \
3547 test -d "$includedir" && {
3548         test -d $includedir &&    $1="[$]$1 $includedir"
3549         test -d $includedir/$2 && $1="[$]$1 $includedir/$2"
3550 }
3551
3552 test "$oldincludedir" != NONE && \
3553 test "$oldincludedir" != "/usr/include" && \
3554 test -d "$oldincludedir" && {
3555         test -d $oldincludedir    && $1="[$]$1 $oldincludedir"
3556         test -d $oldincludedir/$2 && $1="[$]$1 $oldincludedir/$2"
3557 }
3558
3559 $1="[$]$1 $cf_header_path_list"
3560 ])dnl
3561 dnl ---------------------------------------------------------------------------
3562 dnl CF_HELP_MESSAGE version: 4 updated: 2019/12/31 08:53:54
3563 dnl ---------------
3564 dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
3565 AC_DEFUN([CF_HELP_MESSAGE],
3566 [CF_ACVERSION_CHECK(2.53,[],[
3567 AC_DIVERT_HELP($1)])dnl
3568 ])dnl
3569 dnl ---------------------------------------------------------------------------
3570 dnl CF_INCLUDE_DIRS version: 10 updated: 2014/09/19 20:58:42
3571 dnl ---------------
3572 dnl Construct the list of include-options according to whether we're building
3573 dnl in the source directory or using '--srcdir=DIR' option.
3574 AC_DEFUN([CF_INCLUDE_DIRS],
3575 [
3576 if test "$srcdir" != "."; then
3577         CPPFLAGS="-I\${srcdir}/../include $CPPFLAGS"
3578 fi
3579 CPPFLAGS="-I../include $CPPFLAGS"
3580 if test "$srcdir" != "."; then
3581         CPPFLAGS="-I\${srcdir} $CPPFLAGS"
3582 fi
3583 CPPFLAGS="-I. $CPPFLAGS"
3584 AC_SUBST(CPPFLAGS)
3585 ])dnl
3586 dnl ---------------------------------------------------------------------------
3587 dnl CF_INSTALL_OPTS version: 2 updated: 2018/08/18 12:19:21
3588 dnl ---------------
3589 dnl prompt for/fill-in useful install-program options
3590 AC_DEFUN([CF_INSTALL_OPTS],
3591 [
3592 CF_INSTALL_OPT_S
3593 CF_INSTALL_OPT_P
3594 CF_INSTALL_OPT_O
3595 ])dnl
3596 dnl ---------------------------------------------------------------------------
3597 dnl CF_INSTALL_OPT_O version: 2 updated: 2015/05/15 19:45:35
3598 dnl ----------------
3599 dnl Almost all "install" programs default to the current user's ownership.
3600 dnl Almost - MINIX is an exception.
3601 AC_DEFUN([CF_INSTALL_OPT_O],
3602 [
3603 AC_MSG_CHECKING(if install needs to be told about ownership)
3604 case `$ac_config_guess` in
3605 (*minix)
3606         with_install_o=yes
3607         ;;
3608 (*)
3609         with_install_o=no
3610         ;;
3611 esac
3612
3613 AC_MSG_RESULT($with_install_o)
3614 if test "x$with_install_o" = xyes
3615 then
3616         INSTALL_OPT_O=`id root|sed -e 's/uid=[[0-9]]*(/ -o /' -e 's/gid=[[0-9]]*(/ -g /' -e 's/ [[^=[:space:]]][[^=[:space:]]]*=.*/ /' -e 's/)//g'`
3617 else
3618         INSTALL_OPT_O=
3619 fi
3620
3621 AC_SUBST(INSTALL_OPT_O)
3622 ])dnl
3623 dnl ---------------------------------------------------------------------------
3624 dnl CF_INSTALL_OPT_P version: 1 updated: 2018/08/18 12:19:21
3625 dnl ----------------
3626 dnl Some install-programs accept a "-p" option to preserve file modification
3627 dnl timestamps.  That can be useful as an install option, as well as a way to
3628 dnl avoid the need for ranlib after copying a static archive.
3629 AC_DEFUN([CF_INSTALL_OPT_P],
3630 [
3631 : ${INSTALL:=install}
3632 AC_CACHE_CHECK(if install accepts -p option, cf_cv_install_p,[
3633         rm -rf conftest*
3634         date >conftest.in
3635         mkdir conftest.out
3636         sleep 3
3637         if $INSTALL -p conftest.in conftest.out 2>/dev/null
3638         then
3639                 if test -f conftest.out/conftest.in
3640                 then
3641                         test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
3642                         test conftest.out/conftest.in -nt conftest.in 2>conftest.err
3643                         if test -s conftest.err
3644                         then
3645                                 cf_cv_install_p=no
3646                         else
3647                                 cf_cv_install_p=yes
3648                         fi
3649                 else
3650                         cf_cv_install_p=no
3651                 fi
3652         else
3653                 cf_cv_install_p=no
3654         fi
3655         rm -rf conftest*
3656 ])
3657 ])dnl
3658 dnl ---------------------------------------------------------------------------
3659 dnl CF_INSTALL_OPT_S version: 2 updated: 2018/08/18 12:19:21
3660 dnl ----------------
3661 dnl By default, we should strip executables which are installed, but leave the
3662 dnl ability to suppress that for unit-testing.
3663 AC_DEFUN([CF_INSTALL_OPT_S],
3664 [
3665 AC_MSG_CHECKING(if you want to install stripped executables)
3666 CF_ARG_DISABLE(stripping,
3667         [  --disable-stripping     do not strip (debug info) installed executables],
3668         [with_stripping=no],
3669         [with_stripping=yes])
3670 AC_MSG_RESULT($with_stripping)
3671
3672 if test "$with_stripping" = yes
3673 then
3674         INSTALL_OPT_S="-s"
3675 else
3676         INSTALL_OPT_S=
3677 fi
3678 AC_SUBST(INSTALL_OPT_S)
3679 ])dnl
3680 dnl ---------------------------------------------------------------------------
3681 dnl CF_INTEL_COMPILER version: 7 updated: 2015/04/12 15:39:00
3682 dnl -----------------
3683 dnl Check if the given compiler is really the Intel compiler for Linux.  It
3684 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
3685 dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
3686 dnl
3687 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
3688 dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
3689 dnl the wrappers for gcc and g++ warnings.
3690 dnl
3691 dnl $1 = GCC (default) or GXX
3692 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
3693 dnl $3 = CFLAGS (default) or CXXFLAGS
3694 AC_DEFUN([CF_INTEL_COMPILER],[
3695 AC_REQUIRE([AC_CANONICAL_HOST])
3696 ifelse([$2],,INTEL_COMPILER,[$2])=no
3697
3698 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
3699         case $host_os in
3700         (linux*|gnu*)
3701                 AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
3702                 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
3703                 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
3704                 AC_TRY_COMPILE([],[
3705 #ifdef __INTEL_COMPILER
3706 #else
3707 make an error
3708 #endif
3709 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
3710 cf_save_CFLAGS="$cf_save_CFLAGS -we147"
3711 ],[])
3712                 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
3713                 AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
3714                 ;;
3715         esac
3716 fi
3717 ])dnl
3718 dnl ---------------------------------------------------------------------------
3719 dnl CF_ISASCII version: 4 updated: 2012/10/06 17:56:13
3720 dnl ----------
3721 dnl Check if we have either a function or macro for 'isascii()'.
3722 AC_DEFUN([CF_ISASCII],
3723 [
3724 AC_MSG_CHECKING(for isascii)
3725 AC_CACHE_VAL(cf_cv_have_isascii,[
3726         AC_TRY_LINK([#include <ctype.h>],[int x = isascii(' ')],
3727         [cf_cv_have_isascii=yes],
3728         [cf_cv_have_isascii=no])
3729 ])dnl
3730 AC_MSG_RESULT($cf_cv_have_isascii)
3731 test "$cf_cv_have_isascii" = yes && AC_DEFINE(HAVE_ISASCII,1,[Define to 1 if we have isascii()])
3732 ])dnl
3733 dnl ---------------------------------------------------------------------------
3734 dnl CF_LARGEFILE version: 12 updated: 2020/03/19 20:23:48
3735 dnl ------------
3736 dnl Add checks for large file support.
3737 AC_DEFUN([CF_LARGEFILE],[
3738 ifdef([AC_FUNC_FSEEKO],[
3739         AC_SYS_LARGEFILE
3740         if test "$enable_largefile" != no ; then
3741         AC_FUNC_FSEEKO
3742
3743         # Normally we would collect these definitions in the config.h,
3744         # but (like _XOPEN_SOURCE), some environments rely on having these
3745         # defined before any of the system headers are included.  Another
3746         # case comes up with C++, e.g., on AIX the compiler compiles the
3747         # header files by themselves before looking at the body files it is
3748         # told to compile.  For ncurses, those header files do not include
3749         # the config.h
3750         if test "$ac_cv_sys_large_files" != no
3751         then
3752                 CF_APPEND_TEXT(CPPFLAGS,-D_LARGE_FILES)
3753         fi
3754         if test "$ac_cv_sys_largefile_source" != no
3755         then
3756                 CF_APPEND_TEXT(CPPFLAGS,-D_LARGEFILE_SOURCE)
3757         fi
3758         if test "$ac_cv_sys_file_offset_bits" != no
3759         then
3760                 CF_APPEND_TEXT(CPPFLAGS,-D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits)
3761         fi
3762
3763         AC_CACHE_CHECK(whether to use struct dirent64, cf_cv_struct_dirent64,[
3764                 AC_TRY_COMPILE([
3765 #pragma GCC diagnostic error "-Wincompatible-pointer-types"
3766 #include <sys/types.h>
3767 #include <dirent.h>
3768                 ],[
3769                 /* if transitional largefile support is setup, this is true */
3770                 extern struct dirent64 * readdir(DIR *);
3771                 struct dirent64 *x = readdir((DIR *)0);
3772                 struct dirent *y = readdir((DIR *)0);
3773                 int z = x - y;
3774                 (void)z;
3775                 ],
3776                 [cf_cv_struct_dirent64=yes],
3777                 [cf_cv_struct_dirent64=no])
3778         ])
3779         test "$cf_cv_struct_dirent64" = yes && AC_DEFINE(HAVE_STRUCT_DIRENT64,1,[Define to 1 if we have struct dirent64])
3780         fi
3781 ])
3782 ])
3783 dnl ---------------------------------------------------------------------------
3784 dnl CF_LDFLAGS_STATIC version: 12 updated: 2015/04/18 08:56:57
3785 dnl -----------------
3786 dnl Check for compiler/linker flags used to temporarily force usage of static
3787 dnl libraries.  This depends on the compiler and platform.  Use this to help
3788 dnl ensure that the linker picks up a given library based on its position in
3789 dnl the list of linker options and libraries.
3790 AC_DEFUN([CF_LDFLAGS_STATIC],[
3791
3792 if test "$GCC" = yes ; then
3793         case $cf_cv_system_name in
3794         (OS/2*|os2*|aix[[4]]*|solaris2.1[[0-9]]|darwin*)
3795                 LDFLAGS_STATIC=
3796                 LDFLAGS_SHARED=
3797                 ;;
3798         (*)     # normally, except when broken
3799                 LDFLAGS_STATIC=-static
3800                 LDFLAGS_SHARED=-dynamic
3801                 ;;
3802         esac
3803 else
3804         case $cf_cv_system_name in
3805         (aix[[4-7]]*)   # from ld manpage
3806                 LDFLAGS_STATIC=-bstatic
3807                 LDFLAGS_SHARED=-bdynamic
3808                 ;;
3809         (hpux*)         # from ld manpage for hpux10.20, hpux11.11
3810                 # We could also use just "archive" and "shared".
3811                 LDFLAGS_STATIC=-Wl,-a,archive_shared
3812                 LDFLAGS_SHARED=-Wl,-a,shared_archive
3813                 ;;
3814         (irix*)         # from ld manpage IRIX64
3815                 LDFLAGS_STATIC=-Bstatic
3816                 LDFLAGS_SHARED=-Bdynamic
3817                 ;;
3818         (osf[[45]]*)    # from ld manpage osf4.0d, osf5.1
3819                 # alternative "-oldstyle_liblookup" (not in cc manpage)
3820                 LDFLAGS_STATIC=-noso
3821                 LDFLAGS_SHARED=-so_archive
3822                 ;;
3823         (solaris2*)
3824                 LDFLAGS_STATIC=-Bstatic
3825                 LDFLAGS_SHARED=-Bdynamic
3826                 ;;
3827         esac
3828 fi
3829
3830 if test -n "$LDFLAGS_STATIC" && test -n "$LDFLAGS_SHARED"
3831 then
3832         AC_MSG_CHECKING(if linker supports switching between static/dynamic)
3833
3834         rm -f libconftest.a
3835         cat >conftest.$ac_ext <<EOF
3836 #line __oline__ "configure"
3837 #include <stdio.h>
3838 int cf_ldflags_static(FILE *fp) { return fflush(fp); }
3839 EOF
3840         if AC_TRY_EVAL(ac_compile) ; then
3841                 ( $AR $ARFLAGS libconftest.a conftest.o ) 2>&AC_FD_CC 1>/dev/null
3842                 ( eval $RANLIB libconftest.a ) 2>&AC_FD_CC >/dev/null
3843         fi
3844         rm -f conftest.*
3845
3846         cf_save_LIBS="$LIBS"
3847
3848         LIBS="$LDFLAGS_STATIC -L`pwd` -lconftest $LDFLAGS_DYNAMIC $LIBS"
3849         AC_TRY_LINK([
3850 #line __oline__ "configure"
3851 #include <stdio.h>
3852 int cf_ldflags_static(FILE *fp);
3853 ],[
3854         return cf_ldflags_static(stdin);
3855 ],[
3856         # some linkers simply ignore the -dynamic
3857         case x`file conftest$ac_exeext 2>/dev/null` in
3858         (*static*)
3859                 cf_ldflags_static=no
3860                 ;;
3861         (*)
3862                 cf_ldflags_static=yes
3863                 ;;
3864         esac
3865 ],[cf_ldflags_static=no])
3866
3867         rm -f libconftest.*
3868         LIBS="$cf_save_LIBS"
3869
3870         AC_MSG_RESULT($cf_ldflags_static)
3871
3872         if test $cf_ldflags_static != yes
3873         then
3874                 LDFLAGS_STATIC=
3875                 LDFLAGS_SHARED=
3876         fi
3877 else
3878         LDFLAGS_STATIC=
3879         LDFLAGS_SHARED=
3880 fi
3881
3882 AC_SUBST(LDFLAGS_STATIC)
3883 AC_SUBST(LDFLAGS_SHARED)
3884 ])
3885 dnl ---------------------------------------------------------------------------
3886 dnl CF_LD_RPATH_OPT version: 8 updated: 2018/08/18 16:36:35
3887 dnl ---------------
3888 dnl For the given system and compiler, find the compiler flags to pass to the
3889 dnl loader to use the "rpath" feature.
3890 AC_DEFUN([CF_LD_RPATH_OPT],
3891 [
3892 AC_REQUIRE([CF_CHECK_CACHE])
3893
3894 LD_RPATH_OPT=
3895 if test "x$cf_cv_enable_rpath" != xno
3896 then
3897         AC_MSG_CHECKING(for an rpath option)
3898         case $cf_cv_system_name in
3899         (irix*)
3900                 if test "$GCC" = yes; then
3901                         LD_RPATH_OPT="-Wl,-rpath,"
3902                 else
3903                         LD_RPATH_OPT="-rpath "
3904                 fi
3905                 ;;
3906         (linux*|gnu*|k*bsd*-gnu|freebsd*)
3907                 LD_RPATH_OPT="-Wl,-rpath,"
3908                 ;;
3909         (openbsd[[2-9]].*|mirbsd*)
3910                 LD_RPATH_OPT="-Wl,-rpath,"
3911                 ;;
3912         (dragonfly*)
3913                 LD_RPATH_OPT="-rpath "
3914                 ;;
3915         (netbsd*)
3916                 LD_RPATH_OPT="-Wl,-rpath,"
3917                 ;;
3918         (osf*|mls+*)
3919                 LD_RPATH_OPT="-rpath "
3920                 ;;
3921         (solaris2*)
3922                 LD_RPATH_OPT="-R"
3923                 ;;
3924         (*)
3925                 ;;
3926         esac
3927         AC_MSG_RESULT($LD_RPATH_OPT)
3928
3929         case "x$LD_RPATH_OPT" in
3930         (x-R*)
3931                 AC_MSG_CHECKING(if we need a space after rpath option)
3932                 cf_save_LIBS="$LIBS"
3933                 CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
3934                 AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
3935                 LIBS="$cf_save_LIBS"
3936                 AC_MSG_RESULT($cf_rpath_space)
3937                 test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
3938                 ;;
3939         esac
3940 fi
3941 ])dnl
3942 dnl ---------------------------------------------------------------------------
3943 dnl CF_LD_SEARCHPATH version: 2 updated: 2019/09/26 20:34:14
3944 dnl ----------------
3945 dnl Try to obtain the linker's search-path, for use in scripts.
3946 dnl
3947 dnl Ignore LD_LIBRARY_PATH, etc.
3948 AC_DEFUN([CF_LD_SEARCHPATH],[
3949 AC_CACHE_CHECK(for linker search path,cf_cv_ld_searchpath,[
3950
3951 if test "$cross_compiling" != yes ; then
3952
3953 # GNU binutils' ld does not involve permissions which may stop ldconfig.
3954 cf_pathlist=`ld --verbose 2>/dev/null | grep SEARCH_DIR | sed -e 's,SEARCH_DIR[[("=]][[("=]]*,,g' -e 's/"[[)]];//gp' | sort -u`
3955
3956 # The -NX options tell newer versions of Linux ldconfig to not attempt to
3957 # update the cache, which makes it run faster.
3958 test -z "$cf_pathlist" && \
3959         cf_pathlist=`ldconfig -NX -v 2>/dev/null | sed -e '/^[[         ]]/d' -e 's/:$//' | sort -u`
3960
3961 test -z "$cf_pathlist" &&
3962         cf_pathlist=`ldconfig -v 2>/dev/null | sed -n -e '/^[[  ]]/d' -e 's/:$//p' | sort -u`
3963
3964 # This works with OpenBSD 6.5, which lists only filenames
3965 test -z "$cf_pathlist" &&
3966         cf_pathlist=`ldconfig -v 2>/dev/null | sed -n -e 's,^Adding \(.*\)/.*[$],\1,p' | sort -u`
3967
3968 if test -z "$cf_pathlist"
3969 then
3970         # dyld default path with MacOS
3971         if test -f /usr/bin/otool && test "x`uname -s`" = xDarwin
3972         then
3973                 # do this to bypass check
3974                 cf_cv_ld_searchpath='$HOME/lib'
3975                 cf_pathlist="/usr/local/lib /lib /usr/lib"
3976         fi
3977 fi
3978
3979 if test -z "$cf_pathlist"
3980 then
3981         # Solaris is hardcoded
3982         if test -d /opt/SUNWspro/lib
3983         then
3984                 cf_pathlist="/opt/SUNWspro/lib /usr/ccs/lib /usr/lib"
3985         elif test -d /usr/ccs/lib
3986         then
3987                 cf_pathlist="/usr/ccs/lib /usr/lib"
3988         fi
3989 fi
3990
3991 fi
3992
3993 # If nothing else, assume it is conventional
3994 test -z "$cf_pathlist" && cf_pathlist="/usr/lib /lib"
3995
3996 # Finally, check that this is only directories
3997 for cf_path in [$]0 $cf_pathlist
3998 do
3999         if test -d "$cf_path"; then
4000                 test -n "$cf_cv_ld_searchpath" && cf_cv_ld_searchpath="${cf_cv_ld_searchpath} "
4001                 cf_cv_ld_searchpath="${cf_cv_ld_searchpath}${cf_path}"
4002         fi
4003 done
4004
4005 # Ensure that it is nonempty
4006 test -z "$cf_cv_ld_searchpath" && cf_cv_ld_searchpath=/usr/lib
4007 ])
4008
4009 LD_SEARCHPATH=`echo "$cf_cv_ld_searchpath"|sed -e 's/ /|/g'`
4010 AC_SUBST(LD_SEARCHPATH)
4011 ])dnl
4012 dnl ---------------------------------------------------------------------------
4013 dnl CF_LIBRARY_PATH version: 10 updated: 2015/04/15 19:08:48
4014 dnl ---------------
4015 dnl Construct a search-list of directories for a nonstandard library-file
4016 dnl
4017 dnl Parameters
4018 dnl     $1 = the variable to return as result
4019 dnl     $2 = the package name
4020 AC_DEFUN([CF_LIBRARY_PATH],
4021 [
4022 $1=
4023 cf_library_path_list=""
4024 if test -n "${LDFLAGS}${LIBS}" ; then
4025         for cf_library_path in $LDFLAGS $LIBS
4026         do
4027                 case $cf_library_path in
4028                 (-L*)
4029                         cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
4030                         CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
4031                         cf_library_path_list="$cf_library_path_list [$]$1"
4032                         ;;
4033                 esac
4034         done
4035 fi
4036
4037 CF_SUBDIR_PATH($1,$2,lib)
4038
4039 $1="$cf_library_path_list [$]$1"
4040 ])dnl
4041 dnl ---------------------------------------------------------------------------
4042 dnl CF_LIBTOOL_VERSION version: 1 updated: 2013/04/06 18:03:09
4043 dnl ------------------
4044 AC_DEFUN([CF_LIBTOOL_VERSION],[
4045 if test -n "$LIBTOOL" && test "$LIBTOOL" != none
4046 then
4047         cf_cv_libtool_version=`$LIBTOOL --version 2>&1 | sed -e '/^$/d' |sed -e '2,$d' -e 's/([[^)]]*)//g' -e 's/^[[^1-9]]*//' -e 's/[[^0-9.]].*//'`
4048 else
4049         cf_cv_libtool_version=
4050 fi
4051 test -z "$cf_cv_libtool_version" && unset cf_cv_libtool_version
4052 ])dnl
4053 dnl ---------------------------------------------------------------------------
4054 dnl CF_LIB_PREFIX version: 13 updated: 2020/04/04 10:11:47
4055 dnl -------------
4056 dnl Compute the library-prefix for the given host system
4057 dnl $1 = variable to set
4058 define([CF_LIB_PREFIX],
4059 [
4060         case $cf_cv_system_name in
4061         (OS/2*|os2*)
4062                 if test "$DFT_LWR_MODEL" = libtool; then
4063                         LIB_PREFIX='lib'
4064                 else
4065                         LIB_PREFIX=''
4066                 fi
4067                 ;;
4068         (*-msvc*)
4069                 LIB_PREFIX=''
4070                 ;;
4071         (*)     LIB_PREFIX='lib'
4072                 ;;
4073         esac
4074 ifelse($1,,,[$1=$LIB_PREFIX])
4075         AC_SUBST(LIB_PREFIX)
4076 ])dnl
4077 dnl ---------------------------------------------------------------------------
4078 dnl CF_LIB_RULES version: 90 updated: 2020/04/04 10:11:47
4079 dnl ------------
4080 dnl Append definitions and rules for the given models to the subdirectory
4081 dnl Makefiles, and the recursion rule for the top-level Makefile.  If the
4082 dnl subdirectory is a library-source directory, modify the Libs_To_Make list in
4083 dnl the corresponding makefile to list the models that we'll generate.
4084 dnl
4085 dnl For shared libraries, make a list of symbolic links to construct when
4086 dnl generating each library.  The convention used for Linux is the simplest
4087 dnl one:
4088 dnl     lib<name>.so    ->
4089 dnl     lib<name>.so.<major>    ->
4090 dnl     lib<name>.so.<maj>.<minor>
4091 dnl
4092 dnl Note: Libs_To_Make is mixed case, since it is not a pure autoconf variable.
4093 AC_DEFUN([CF_LIB_RULES],
4094 [
4095 cf_prefix=$LIB_PREFIX
4096 AC_REQUIRE([CF_SUBST_NCURSES_VERSION])
4097
4098 case $cf_cv_shlib_version in
4099 (cygdll|msysdll|mingw|msvcdll)
4100         TINFO_NAME=$TINFO_ARG_SUFFIX
4101         TINFO_SUFFIX=.dll
4102         ;;
4103 esac
4104
4105 if test -n "$TINFO_SUFFIX" ; then
4106         case $TINFO_SUFFIX in
4107         (tw*)
4108                 TINFO_NAME="${TINFO_NAME}tw${EXTRA_SUFFIX}"
4109                 TINFO_SUFFIX=`echo $TINFO_SUFFIX | sed 's/^tw'$EXTRA_SUFFIX'//'`
4110                 ;;
4111         (t*)
4112                 TINFO_NAME="${TINFO_NAME}t${EXTRA_SUFFIX}"
4113                 TINFO_SUFFIX=`echo $TINFO_SUFFIX | sed 's/^t'$EXTRA_SUFFIX'//'`
4114                 ;;
4115         (w*)
4116                 TINFO_NAME="${TINFO_NAME}w${EXTRA_SUFFIX}"
4117                 TINFO_SUFFIX=`echo $TINFO_SUFFIX | sed 's/^w'$EXTRA_SUFFIX'//'`
4118                 ;;
4119         esac
4120 fi
4121
4122 for cf_dir in $SRC_SUBDIRS
4123 do
4124         if test ! -d $srcdir/$cf_dir ; then
4125                 continue
4126         elif test -f $srcdir/$cf_dir/modules; then
4127
4128                 SHARED_LIB=
4129                 Libs_To_Make=
4130                 cf_awk_program=
4131                 if test -n "${cf_cv_abi_version}" && test "x${cf_cv_abi_version}" != "x5"
4132                 then
4133                         cf_awk_program="$cf_awk_program\
4134 /deprecated in ABI${cf_cv_abi_version}/ { next; }\
4135 { sub(\"NCURSES([[WT]]+)?\", \"&${cf_cv_abi_version}\"); }\
4136 "
4137                 fi
4138
4139                 if test "x$WILDCARD_SYMS" = xno
4140                 then
4141                         cf_awk_program="$cf_awk_program\
4142 /[[     ]]_\\*;/ { skip=1; next; }\
4143 "
4144                 fi
4145
4146                 if test "x$cf_awk_program" != "x"
4147                 then
4148                         cat >>$cf_dir/Makefile <<CF_EOF
4149
4150 # Generated by CF_LIB_RULES
4151 resulting.map: $UNALTERED_SYMS
4152         $AWK 'BEGIN { skip = 1; last=""; } \
4153 $cf_awk_program \
4154 { if ( last != "" && ( skip == 0 || \[$]\[$]0 !~ /}/ ) ) { print last; }\
4155  skip = 0; last = \[$]\[$]0; } \
4156 END { print last; }' < $UNALTERED_SYMS >\[$]@
4157
4158 distclean::
4159         rm -f resulting.map
4160 CF_EOF
4161                 fi
4162
4163                 for cf_item in $cf_LIST_MODELS
4164                 do
4165                         CF_LIB_SUFFIX($cf_item,cf_suffix,cf_depsuf)
4166                         if test "$cf_dir" = "c++"
4167                         then
4168                                 CF_MAP_LIB_BASENAME(cf_libname,cxx)
4169                         else
4170                                 CF_MAP_LIB_BASENAME(cf_libname,$cf_dir)
4171                         fi
4172                         test -z "$cf_libname" && cf_libname="$cf_dir"
4173                         if test $cf_item = shared ; then
4174                                 if test -n "${LIB_SUFFIX}"
4175                                 then
4176                                         cf_shared_suffix=`echo "$cf_suffix" | sed 's/^'"${USE_LIB_SUFFIX}"'//'`
4177                                 else
4178                                         cf_shared_suffix="$cf_suffix"
4179                                 fi
4180                                 if test "$cf_cv_do_symlinks" = yes ; then
4181                                         cf_version_name=
4182
4183                                         case "$cf_cv_shlib_version" in
4184                                         (rel)
4185                                                 cf_version_name=REL_VERSION
4186                                                 ;;
4187                                         (abi)
4188                                                 cf_version_name=ABI_VERSION
4189                                                 ;;
4190                                         esac
4191
4192                                         if test -n "$cf_version_name"
4193                                         then
4194                                                 case "$cf_cv_system_name" in
4195                                                 (darwin*)
4196                                                         # "w", etc?
4197                                                         cf_suffix="${USE_LIB_SUFFIX}"'.${'$cf_version_name'}'"$cf_shared_suffix"
4198                                                         ;;
4199                                                 (*)
4200                                                         cf_suffix="$cf_suffix"'.${'$cf_version_name'}'
4201                                                         ;;
4202                                                 esac
4203                                         fi
4204                                         if test -n "${USE_LIB_SUFFIX}"
4205                                         then
4206                                                 cf_shared_suffix=`echo "$cf_suffix" | sed 's/^'"${USE_LIB_SUFFIX}"'//'`
4207                                         else
4208                                                 cf_shared_suffix="$cf_suffix"
4209                                         fi
4210                                 fi
4211                                 # cygwin needs import library, and has unique naming convention
4212                                 # use autodetected ${cf_prefix} for import lib and static lib, but
4213                                 # use 'cyg' prefix for shared lib.
4214                                 case $cf_cv_shlib_version in
4215                                 (cygdll)
4216                                         cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
4217                                         cf_add_lib="../lib/cyg${cf_libname}${cf_cygsuf}"
4218                                         ;;
4219                                 (msysdll)
4220                                         cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
4221                                         cf_add_lib="../lib/msys-${cf_libname}${cf_cygsuf}"
4222                                         ;;
4223                                 (mingw)
4224                                         cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
4225                                         cf_add_lib="../lib/lib${cf_libname}${cf_cygsuf}"
4226                                         ;;
4227                                 (msvcdll)
4228                                         cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
4229                                         cf_add_lib="../lib/${cf_libname}${cf_cygsuf}"
4230                                         ;;
4231                                 (*)
4232                                         cf_add_lib=
4233                                         ;;
4234                                 esac
4235                                 if test -n "$cf_add_lib"
4236                                 then
4237                                         Libs_To_Make="$Libs_To_Make $cf_add_lib"
4238                                         continue
4239                                 fi
4240                         fi
4241                         cf_add_lib="../lib/${cf_prefix}${cf_libname}${cf_suffix}"
4242                         Libs_To_Make="$Libs_To_Make $cf_add_lib"
4243                 done
4244
4245                 if test $cf_dir = ncurses ; then
4246                         cf_subsets="$LIB_SUBSETS"
4247                         cf_r_parts="$cf_subsets"
4248                         cf_liblist="$Libs_To_Make"
4249
4250                         while test -n "$cf_r_parts"
4251                         do
4252                                 cf_l_parts=`echo "$cf_r_parts" |sed -e 's/ .*$//'`
4253                                 cf_r_parts=`echo "$cf_r_parts" |sed -e 's/^[[^ ]]* //'`
4254                                 if test "$cf_l_parts" != "$cf_r_parts" ; then
4255                                         cf_add_lib=
4256                                         case $cf_l_parts in
4257                                         (*termlib*)
4258                                                 cf_add_lib=`echo $cf_liblist |sed -e s%${LIB_NAME}${USE_LIB_SUFFIX}%${TINFO_LIB_SUFFIX}%g`
4259                                                 ;;
4260                                         (*ticlib*)
4261                                                 cf_add_lib=`echo $cf_liblist |sed -e s%${LIB_NAME}${USE_LIB_SUFFIX}%${TICS_LIB_SUFFIX}%g`
4262                                                 ;;
4263                                         (*)
4264                                                 break
4265                                                 ;;
4266                                         esac
4267                                         if test -n "$cf_add_lib"; then
4268                                                 Libs_To_Make="$cf_add_lib $Libs_To_Make"
4269                                         fi
4270                                 else
4271                                         break
4272                                 fi
4273                         done
4274                 else
4275                         cf_subsets=`echo "$LIB_SUBSETS" | sed -e 's/^termlib.* //'`
4276                 fi
4277
4278                 if test $cf_dir = c++; then
4279                         if test "x$with_shared_cxx" != xyes && test -n "$cf_shared_suffix"; then
4280                                 cf_list=
4281                                 for cf_item in $Libs_To_Make
4282                                 do
4283                                         case $cf_item in
4284                                         (*.a)
4285                                                 ;;
4286                                         (*)
4287                                                 cf_item=`echo "$cf_item" | sed -e "s,"$cf_shared_suffix",.a,"`
4288                                                 ;;
4289                                         esac
4290                                         for cf_test in $cf_list
4291                                         do
4292                                                 if test "$cf_test" = "$cf_item"
4293                                                 then
4294                                                         cf_LIST_MODELS=`echo "$cf_LIST_MODELS" | sed -e 's/normal//'`
4295                                                         cf_item=
4296                                                         break
4297                                                 fi
4298                                         done
4299                                         test -n "$cf_item" && cf_list="$cf_list $cf_item"
4300                                 done
4301                                 Libs_To_Make="$cf_list"
4302                         fi
4303                 fi
4304
4305                 sed -e "s%@Libs_To_Make@%$Libs_To_Make%" \
4306                     -e "s%@SHARED_LIB@%$SHARED_LIB%" \
4307                         $cf_dir/Makefile >$cf_dir/Makefile.out
4308                 mv $cf_dir/Makefile.out $cf_dir/Makefile
4309
4310                 $AWK -f $srcdir/mk-0th.awk \
4311                         libname="${cf_dir}${LIB_SUFFIX}" subsets="$LIB_SUBSETS" ticlib="$TICS_LIB_SUFFIX" termlib="$TINFO_LIB_SUFFIX" \
4312                         $srcdir/$cf_dir/modules >>$cf_dir/Makefile
4313
4314                 for cf_subset in $cf_subsets
4315                 do
4316                         cf_subdirs=
4317                         for cf_item in $cf_LIST_MODELS
4318                         do
4319
4320                         echo "Appending rules for ${cf_item} model (${cf_dir}: ${cf_subset})"
4321                         CF_UPPER(cf_ITEM,$cf_item)
4322
4323                         CXX_MODEL=$cf_ITEM
4324                         if test "$CXX_MODEL" = SHARED; then
4325                                 case $cf_cv_shlib_version in
4326                                 (cygdll|msysdll|mingw|msvcdll)
4327                                         test "x$with_shared_cxx" = xno && CF_VERBOSE(overriding CXX_MODEL to SHARED)
4328                                         with_shared_cxx=yes
4329                                         ;;
4330                                 (*)
4331                                         test "x$with_shared_cxx" = xno && CXX_MODEL=NORMAL
4332                                         ;;
4333                                 esac
4334                         fi
4335
4336                         CF_LIB_SUFFIX($cf_item,cf_suffix,cf_depsuf)
4337                         CF_OBJ_SUBDIR($cf_item,cf_subdir)
4338
4339                         # Test for case where we build libtinfo with a different name.
4340                         cf_libname=$cf_dir
4341                         if test $cf_dir = ncurses ; then
4342                                 case $cf_subset in
4343                                 (*base*)
4344                                         cf_libname=${cf_libname}$USE_LIB_SUFFIX
4345                                         ;;
4346                                 (*termlib*)
4347                                         cf_libname=$TINFO_LIB_SUFFIX
4348                                         ;;
4349                                 (ticlib*)
4350                                         cf_libname=$TICS_LIB_SUFFIX
4351                                         ;;
4352                                 esac
4353                         elif test $cf_dir = c++ ; then
4354              &n