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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 1.935 2020/10/24 23:49:51 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_CFLAGS version: 14 updated: 2020/04/04 16:16:13
162 dnl -------------
163 dnl Copy non-preprocessor flags to $CFLAGS, preprocessor flags to $CPPFLAGS
164 dnl $1 = flags to add
165 dnl $2 = if given makes this macro verbose.
166 dnl
167 dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
168 dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
169 dnl confused by the quotes (which require backslashes to keep them usable).
170 AC_DEFUN([CF_ADD_CFLAGS],
171 [
172 cf_fix_cppflags=no
173 cf_new_cflags=
174 cf_new_cppflags=
175 cf_new_extra_cppflags=
176
177 for cf_add_cflags in $1
178 do
179 case $cf_fix_cppflags in
180 (no)
181         case $cf_add_cflags in
182         (-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C)
183                 case $cf_add_cflags in
184                 (-D*)
185                         cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^-D[[^=]]*='\''\"[[^"]]*//'`
186
187                         test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
188                                 && test -z "${cf_tst_cflags}" \
189                                 && cf_fix_cppflags=yes
190
191                         if test $cf_fix_cppflags = yes ; then
192                                 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
193                                 continue
194                         elif test "${cf_tst_cflags}" = "\"'" ; then
195                                 CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
196                                 continue
197                         fi
198                         ;;
199                 esac
200                 case "$CPPFLAGS" in
201                 (*$cf_add_cflags)
202                         ;;
203                 (*)
204                         case $cf_add_cflags in
205                         (-D*)
206                                 cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
207                                 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,$cf_tst_cppflags)
208                                 ;;
209                         esac
210                         CF_APPEND_TEXT(cf_new_cppflags,$cf_add_cflags)
211                         ;;
212                 esac
213                 ;;
214         (*)
215                 CF_APPEND_TEXT(cf_new_cflags,$cf_add_cflags)
216                 ;;
217         esac
218         ;;
219 (yes)
220         CF_APPEND_TEXT(cf_new_extra_cppflags,$cf_add_cflags)
221
222         cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^[[^"]]*"'\''//'`
223
224         test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
225                 && test -z "${cf_tst_cflags}" \
226                 && cf_fix_cppflags=no
227         ;;
228 esac
229 done
230
231 if test -n "$cf_new_cflags" ; then
232         ifelse([$2],,,[CF_VERBOSE(add to \$CFLAGS $cf_new_cflags)])
233         CF_APPEND_TEXT(CFLAGS,$cf_new_cflags)
234 fi
235
236 if test -n "$cf_new_cppflags" ; then
237         ifelse([$2],,,[CF_VERBOSE(add to \$CPPFLAGS $cf_new_cppflags)])
238         CF_APPEND_TEXT(CPPFLAGS,$cf_new_cppflags)
239 fi
240
241 if test -n "$cf_new_extra_cppflags" ; then
242         ifelse([$2],,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)])
243         CF_APPEND_TEXT(EXTRA_CPPFLAGS,$cf_new_extra_cppflags)
244 fi
245
246 AC_SUBST(EXTRA_CPPFLAGS)
247
248 ])dnl
249 dnl ---------------------------------------------------------------------------
250 dnl CF_ADD_CXXFLAGS version: 1 updated: 2020/04/04 16:16:13
251 dnl ---------------
252 dnl Copy non-preprocessor flags to $CXXFLAGS, preprocessor flags to $CPPFLAGS
253 dnl The second parameter if given makes this macro verbose.
254 dnl
255 dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
256 dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
257 dnl confused by the quotes (which require backslashes to keep them usable).
258 AC_DEFUN([CF_ADD_CXXFLAGS],
259 [
260 cf_save_CXXFLAGS="$CFLAGS"
261 CFLAGS="$CXXFLAGS"
262 CF_ADD_CFLAGS($1 ifelse($2,,,[,$2]))
263 CXXFLAGS="$CFLAGS"
264 CFLAGS="$cf_save_CXXFLAGS"
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: 17 updated: 2020/10/24 19:48:55
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_CHECK_SIZEOF(bool,,[
617 #include <stdlib.h>
618 #include <stdio.h>
619
620 #if defined(__cplusplus)
621
622 #ifdef HAVE_GXX_BUILTIN_H
623 #include <g++/builtin.h>
624 #elif HAVE_GPP_BUILTIN_H
625 #include <gpp/builtin.h>
626 #elif HAVE_BUILTIN_H
627 #include <builtin.h>
628 #endif
629
630 #else
631
632 #if $cf_cv_header_stdbool_h
633 #include <stdbool.h>
634 #endif
635
636 #endif
637 ])
638
639 AC_CACHE_CHECK(for type of bool, cf_cv_type_of_bool,[
640         rm -f cf_test.out
641         AC_TRY_RUN([
642 #include <stdlib.h>
643 #include <stdio.h>
644
645 #if defined(__cplusplus)
646
647 #ifdef HAVE_GXX_BUILTIN_H
648 #include <g++/builtin.h>
649 #elif HAVE_GPP_BUILTIN_H
650 #include <gpp/builtin.h>
651 #elif HAVE_BUILTIN_H
652 #include <builtin.h>
653 #endif
654
655 #else
656
657 #if $cf_cv_header_stdbool_h
658 #include <stdbool.h>
659 #endif
660
661 #endif
662
663 int main(void)
664 {
665         FILE *fp = fopen("cf_test.out", "w");
666         if (fp != 0) {
667                 bool x = true;
668                 if ((bool)(-x) >= 0)
669                         fputs("unsigned ", fp);
670                 if (sizeof(x) == sizeof(int))       fputs("int",  fp);
671                 else if (sizeof(x) == sizeof(char)) fputs("char", fp);
672                 else if (sizeof(x) == sizeof(short))fputs("short",fp);
673                 else if (sizeof(x) == sizeof(long)) fputs("long", fp);
674                 fclose(fp);
675         }
676         ${cf_cv_main_return:-return}(0);
677 }
678                 ],
679                 [cf_cv_type_of_bool=`cat cf_test.out`
680                  if test -z "$cf_cv_type_of_bool"; then
681                    cf_cv_type_of_bool=unknown
682                  fi],
683                 [cf_cv_type_of_bool=unknown],
684                 [
685                 case x$ac_cv_sizeof_bool in
686                 (x1) cf_cv_type_of_bool="unsigned char";;
687                 (x2) cf_cv_type_of_bool="unsigned short";;
688                 (x4) cf_cv_type_of_bool="unsigned int";;
689                 (x8) cf_cv_type_of_bool="unsigned long";;
690                 (*)  cf_cv_type_of_bool=unknown;;
691                 esac
692                 ])
693         rm -f cf_test.out
694 ])
695
696 if test "$cf_cv_type_of_bool" = unknown ; then
697         case .$NCURSES_BOOL in
698         (.auto|.) NCURSES_BOOL=unsigned;;
699         esac
700         AC_MSG_WARN(Assuming $NCURSES_BOOL for type of bool)
701         cf_cv_type_of_bool=$NCURSES_BOOL
702 fi
703 ])dnl
704 dnl ---------------------------------------------------------------------------
705 dnl CF_BUILD_CC version: 8 updated: 2018/01/04 20:31:04
706 dnl -----------
707 dnl If we're cross-compiling, allow the user to override the tools and their
708 dnl options.  The configure script is oriented toward identifying the host
709 dnl compiler, etc., but we need a build compiler to generate parts of the
710 dnl source.
711 dnl
712 dnl $1 = default for $CPPFLAGS
713 dnl $2 = default for $LIBS
714 AC_DEFUN([CF_BUILD_CC],[
715 CF_ACVERSION_CHECK(2.52,,
716         [AC_REQUIRE([CF_PROG_EXT])])
717 if test "$cross_compiling" = yes ; then
718
719         # defaults that we might want to override
720         : ${BUILD_CFLAGS:=''}
721         : ${BUILD_CPPFLAGS:='ifelse([$1],,,[$1])'}
722         : ${BUILD_LDFLAGS:=''}
723         : ${BUILD_LIBS:='ifelse([$2],,,[$2])'}
724         : ${BUILD_EXEEXT:='$x'}
725         : ${BUILD_OBJEXT:='o'}
726
727         AC_ARG_WITH(build-cc,
728                 [  --with-build-cc=XXX     the build C compiler ($BUILD_CC)],
729                 [BUILD_CC="$withval"],
730                 [AC_CHECK_PROGS(BUILD_CC, [gcc clang c99 c89 cc cl],none)])
731         AC_MSG_CHECKING(for native build C compiler)
732         AC_MSG_RESULT($BUILD_CC)
733
734         AC_MSG_CHECKING(for native build C preprocessor)
735         AC_ARG_WITH(build-cpp,
736                 [  --with-build-cpp=XXX    the build C preprocessor ($BUILD_CPP)],
737                 [BUILD_CPP="$withval"],
738                 [BUILD_CPP='${BUILD_CC} -E'])
739         AC_MSG_RESULT($BUILD_CPP)
740
741         AC_MSG_CHECKING(for native build C flags)
742         AC_ARG_WITH(build-cflags,
743                 [  --with-build-cflags=XXX the build C compiler-flags ($BUILD_CFLAGS)],
744                 [BUILD_CFLAGS="$withval"])
745         AC_MSG_RESULT($BUILD_CFLAGS)
746
747         AC_MSG_CHECKING(for native build C preprocessor-flags)
748         AC_ARG_WITH(build-cppflags,
749                 [  --with-build-cppflags=XXX the build C preprocessor-flags ($BUILD_CPPFLAGS)],
750                 [BUILD_CPPFLAGS="$withval"])
751         AC_MSG_RESULT($BUILD_CPPFLAGS)
752
753         AC_MSG_CHECKING(for native build linker-flags)
754         AC_ARG_WITH(build-ldflags,
755                 [  --with-build-ldflags=XXX the build linker-flags ($BUILD_LDFLAGS)],
756                 [BUILD_LDFLAGS="$withval"])
757         AC_MSG_RESULT($BUILD_LDFLAGS)
758
759         AC_MSG_CHECKING(for native build linker-libraries)
760         AC_ARG_WITH(build-libs,
761                 [  --with-build-libs=XXX   the build libraries (${BUILD_LIBS})],
762                 [BUILD_LIBS="$withval"])
763         AC_MSG_RESULT($BUILD_LIBS)
764
765         # this assumes we're on Unix.
766         BUILD_EXEEXT=
767         BUILD_OBJEXT=o
768
769         : ${BUILD_CC:='${CC}'}
770
771         if ( test "$BUILD_CC" = "$CC" || test "$BUILD_CC" = '${CC}' ) ; then
772                 AC_MSG_ERROR([Cross-build requires two compilers.
773 Use --with-build-cc to specify the native compiler.])
774         fi
775
776 else
777         : ${BUILD_CC:='${CC}'}
778         : ${BUILD_CPP:='${CPP}'}
779         : ${BUILD_CFLAGS:='${CFLAGS}'}
780         : ${BUILD_CPPFLAGS:='${CPPFLAGS}'}
781         : ${BUILD_LDFLAGS:='${LDFLAGS}'}
782         : ${BUILD_LIBS:='${LIBS}'}
783         : ${BUILD_EXEEXT:='$x'}
784         : ${BUILD_OBJEXT:='o'}
785 fi
786
787 AC_SUBST(BUILD_CC)
788 AC_SUBST(BUILD_CPP)
789 AC_SUBST(BUILD_CFLAGS)
790 AC_SUBST(BUILD_CPPFLAGS)
791 AC_SUBST(BUILD_LDFLAGS)
792 AC_SUBST(BUILD_LIBS)
793 AC_SUBST(BUILD_EXEEXT)
794 AC_SUBST(BUILD_OBJEXT)
795 ])dnl
796 dnl ---------------------------------------------------------------------------
797 dnl CF_CC_ENV_FLAGS version: 9 updated: 2018/07/29 18:03:26
798 dnl ---------------
799 dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
800 dnl into CC.  This will not help with broken scripts that wrap the compiler
801 dnl with options, but eliminates a more common category of user confusion.
802 dnl
803 dnl In particular, it addresses the problem of being able to run the C
804 dnl preprocessor in a consistent manner.
805 dnl
806 dnl Caveat: this also disallows blanks in the pathname for the compiler, but
807 dnl the nuisance of having inconsistent settings for compiler and preprocessor
808 dnl outweighs that limitation.
809 AC_DEFUN([CF_CC_ENV_FLAGS],
810 [
811 # This should have been defined by AC_PROG_CC
812 : ${CC:=cc}
813
814 AC_MSG_CHECKING(\$CFLAGS variable)
815 case "x$CFLAGS" in
816 (*-[[IUD]]*)
817         AC_MSG_RESULT(broken)
818         AC_MSG_WARN(your environment uses the CFLAGS variable to hold CPPFLAGS options)
819         cf_flags="$CFLAGS"
820         CFLAGS=
821         for cf_arg in $cf_flags
822         do
823                 CF_ADD_CFLAGS($cf_arg)
824         done
825         ;;
826 (*)
827         AC_MSG_RESULT(ok)
828         ;;
829 esac
830
831 AC_MSG_CHECKING(\$CC variable)
832 case "$CC" in
833 (*[[\ \ ]]-*)
834         AC_MSG_RESULT(broken)
835         AC_MSG_WARN(your environment uses the CC variable to hold CFLAGS/CPPFLAGS options)
836         # humor him...
837         cf_prog=`echo "$CC" | sed -e 's/        / /g' -e 's/[[ ]]* / /g' -e 's/[[ ]]*[[ ]]-[[^ ]].*//'`
838         cf_flags=`echo "$CC" | ${AWK:-awk} -v prog="$cf_prog" '{ printf("%s", [substr]([$]0,1+length(prog))); }'`
839         CC="$cf_prog"
840         for cf_arg in $cf_flags
841         do
842                 case "x$cf_arg" in
843                 (x-[[IUDfgOW]]*)
844                         CF_ADD_CFLAGS($cf_arg)
845                         ;;
846                 (*)
847                         CC="$CC $cf_arg"
848                         ;;
849                 esac
850         done
851         CF_VERBOSE(resulting CC: '$CC')
852         CF_VERBOSE(resulting CFLAGS: '$CFLAGS')
853         CF_VERBOSE(resulting CPPFLAGS: '$CPPFLAGS')
854         ;;
855 (*)
856         AC_MSG_RESULT(ok)
857         ;;
858 esac
859 ])dnl
860 dnl ---------------------------------------------------------------------------
861 dnl CF_CFG_DEFAULTS version: 11 updated: 2015/04/17 21:13:04
862 dnl ---------------
863 dnl Determine the default configuration into which we'll install ncurses.  This
864 dnl can be overridden by the user's command-line options.  There's two items to
865 dnl look for:
866 dnl     1. the prefix (e.g., /usr)
867 dnl     2. the header files (e.g., /usr/include/ncurses)
868 dnl We'll look for a previous installation of ncurses and use the same defaults.
869 dnl
870 dnl We don't use AC_PREFIX_DEFAULT, because it gets evaluated too soon, and
871 dnl we don't use AC_PREFIX_PROGRAM, because we cannot distinguish ncurses's
872 dnl programs from a vendor's.
873 AC_DEFUN([CF_CFG_DEFAULTS],
874 [
875 AC_MSG_CHECKING(for prefix)
876 if test "x$prefix" = "xNONE" ; then
877         case "$cf_cv_system_name" in
878                 # non-vendor systems don't have a conflict
879         (openbsd*|freebsd*|mirbsd*|linux*|cygwin*|msys*|k*bsd*-gnu|mingw*)
880                 prefix=/usr
881                 ;;
882         (*)     prefix=$ac_default_prefix
883                 ;;
884         esac
885 fi
886 AC_MSG_RESULT($prefix)
887
888 if test "x$prefix" = "xNONE" ; then
889 AC_MSG_CHECKING(for default include-directory)
890 test -n "$verbose" && echo 1>&AC_FD_MSG
891 for cf_symbol in \
892         $includedir \
893         $includedir/ncurses \
894         $prefix/include \
895         $prefix/include/ncurses \
896         /usr/local/include \
897         /usr/local/include/ncurses \
898         /usr/include \
899         /usr/include/ncurses
900 do
901         cf_dir=`eval echo $cf_symbol`
902         if test -f $cf_dir/curses.h ; then
903         if ( fgrep NCURSES_VERSION $cf_dir/curses.h 2>&1 >/dev/null ) ; then
904                 includedir="$cf_symbol"
905                 test -n "$verbose"  && echo $ac_n "     found " 1>&AC_FD_MSG
906                 break
907         fi
908         fi
909         test -n "$verbose"  && echo "   tested $cf_dir" 1>&AC_FD_MSG
910 done
911 AC_MSG_RESULT($includedir)
912 fi
913 ])dnl
914 dnl ---------------------------------------------------------------------------
915 dnl CF_CGETENT version: 6 updated: 2017/01/21 11:06:25
916 dnl ----------
917 dnl Check if the terminal-capability database functions are available.  If not,
918 dnl ncurses has a much-reduced version.
919 AC_DEFUN([CF_CGETENT],[
920 AC_CACHE_CHECK(for terminal-capability database functions,cf_cv_cgetent,[
921 AC_TRY_LINK([
922 #include <stdlib.h>],[
923         char temp[128];
924         char *buf = temp;
925         char *db_array = temp;
926         cgetent(&buf, &db_array, "vt100");
927         cgetcap(buf, "tc", '=');
928         cgetmatch(buf, "tc");
929         ],
930         [cf_cv_cgetent=yes],
931         [cf_cv_cgetent=no])
932 ])
933
934 if test "$cf_cv_cgetent" = yes
935 then
936         AC_DEFINE(HAVE_BSD_CGETENT,1,[Define to 1 if we have BSD cgetent])
937 AC_CACHE_CHECK(if cgetent uses const parameter,cf_cv_cgetent_const,[
938 AC_TRY_LINK([
939 #pragma GCC diagnostic error "-Wincompatible-pointer-types-discards-qualifiers"
940 #include <stdlib.h>],[
941         char temp[128];
942         char *buf = temp;
943 #ifndef _NETBSD_SOURCE                  /* given, since April 2004 in stdlib.h */
944         const char *db_array = temp;
945         cgetent(&buf, &db_array, "vt100");
946 #endif
947         cgetcap(buf, "tc", '=');
948         cgetmatch(buf, "tc");
949         ],
950         [cf_cv_cgetent_const=yes],
951         [cf_cv_cgetent_const=no])
952 ])
953         if test "$cf_cv_cgetent_const" = yes
954         then
955                 AC_DEFINE_UNQUOTED(CGETENT_CONST,const,[Define to const if needed for some BSD cgetent variations])
956         fi
957 fi
958 ])dnl
959 dnl ---------------------------------------------------------------------------
960 dnl CF_CHECK_CACHE version: 12 updated: 2012/10/02 20:55:03
961 dnl --------------
962 dnl Check if we're accidentally using a cache from a different machine.
963 dnl Derive the system name, as a check for reusing the autoconf cache.
964 dnl
965 dnl If we've packaged config.guess and config.sub, run that (since it does a
966 dnl better job than uname).  Normally we'll use AC_CANONICAL_HOST, but allow
967 dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
968 dnl which is useful in cross-compiles.
969 dnl
970 dnl Note: we would use $ac_config_sub, but that is one of the places where
971 dnl autoconf 2.5x broke compatibility with autoconf 2.13
972 AC_DEFUN([CF_CHECK_CACHE],
973 [
974 if test -f $srcdir/config.guess || test -f $ac_aux_dir/config.guess ; then
975         ifelse([$1],,[AC_CANONICAL_HOST],[$1])
976         system_name="$host_os"
977 else
978         system_name="`(uname -s -r) 2>/dev/null`"
979         if test -z "$system_name" ; then
980                 system_name="`(hostname) 2>/dev/null`"
981         fi
982 fi
983 test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name",[Define to the system name.])
984 AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
985
986 test -z "$system_name" && system_name="$cf_cv_system_name"
987 test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)
988
989 if test ".$system_name" != ".$cf_cv_system_name" ; then
990         AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
991         AC_MSG_ERROR("Please remove config.cache and try again.")
992 fi
993 ])dnl
994 dnl ---------------------------------------------------------------------------
995 dnl CF_CHECK_ENVIRON version: 3 updated: 2010/05/26 16:44:57
996 dnl ----------------
997 dnl Check for data that is usually declared in <unistd.h>, e.g., the 'environ'
998 dnl variable.  Define a DECL_xxx symbol if we must declare it ourselves.
999 dnl
1000 dnl $1 = the name to check
1001 dnl $2 = the assumed type
1002 AC_DEFUN([CF_CHECK_ENVIRON],
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 <unistd.h> ],
1010     ifelse([$2],,int,[$2]) x = (ifelse([$2],,int,[$2])) $1,
1011     [cf_cv_dcl_$1=yes],
1012     [cf_cv_dcl_$1=no])
1013 ])
1014
1015 if test "$cf_cv_dcl_$1" = no ; then
1016     CF_UPPER(cf_result,decl_$1)
1017     AC_DEFINE_UNQUOTED($cf_result)
1018 fi
1019
1020 # It's possible (for near-UNIX clones) that the data doesn't exist
1021 CF_CHECK_EXTERN_DATA($1,ifelse([$2],,int,[$2]))
1022 ])dnl
1023 dnl ---------------------------------------------------------------------------
1024 dnl CF_CHECK_ERRNO version: 13 updated: 2020/03/10 18:53:47
1025 dnl --------------
1026 dnl Check for data that is usually declared in <stdio.h> or <errno.h>, e.g.,
1027 dnl the 'errno' variable.  Define a DECL_xxx symbol if we must declare it
1028 dnl ourselves.
1029 dnl
1030 dnl $1 = the name to check
1031 dnl $2 = the assumed type
1032 AC_DEFUN([CF_CHECK_ERRNO],
1033 [
1034 AC_CACHE_CHECK(if external $1 is declared, cf_cv_dcl_$1,[
1035         AC_TRY_COMPILE([
1036 #ifdef HAVE_STDLIB_H
1037 #include <stdlib.h>
1038 #endif
1039 #include <stdio.h>
1040 #include <sys/types.h>
1041 #include <errno.h> ],
1042         ifelse([$2],,int,[$2]) x = (ifelse([$2],,int,[$2])) $1; (void)x,
1043         [cf_cv_dcl_$1=yes],
1044         [cf_cv_dcl_$1=no])
1045 ])
1046
1047 if test "$cf_cv_dcl_$1" = no ; then
1048         CF_UPPER(cf_result,decl_$1)
1049         AC_DEFINE_UNQUOTED($cf_result)
1050 fi
1051
1052 # It's possible (for near-UNIX clones) that the data doesn't exist
1053 CF_CHECK_EXTERN_DATA($1,ifelse([$2],,int,[$2]))
1054 ])dnl
1055 dnl ---------------------------------------------------------------------------
1056 dnl CF_CHECK_EXTERN_DATA version: 4 updated: 2015/04/18 08:56:57
1057 dnl --------------------
1058 dnl Check for existence of external data in the current set of libraries.  If
1059 dnl we can modify it, it's real enough.
1060 dnl $1 = the name to check
1061 dnl $2 = its type
1062 AC_DEFUN([CF_CHECK_EXTERN_DATA],
1063 [
1064 AC_CACHE_CHECK(if external $1 exists, cf_cv_have_$1,[
1065         AC_TRY_LINK([
1066 #undef $1
1067 extern $2 $1;
1068 ],
1069         [$1 = 2],
1070         [cf_cv_have_$1=yes],
1071         [cf_cv_have_$1=no])
1072 ])
1073
1074 if test "$cf_cv_have_$1" = yes ; then
1075         CF_UPPER(cf_result,have_$1)
1076         AC_DEFINE_UNQUOTED($cf_result)
1077 fi
1078
1079 ])dnl
1080 dnl ---------------------------------------------------------------------------
1081 dnl CF_CHECK_FVISIBILITY version: 2 updated: 2020/04/04 16:16:13
1082 dnl --------------------
1083 dnl Check whether the compiler understands -fvisibility=hidden
1084 dnl
1085 dnl $1 = compiler
1086 dnl $2 = compiler-flags variable name
1087 dnl $3 = cache variable to set
1088 AC_DEFUN([CF_CHECK_FVISIBILITY],[
1089 AC_CACHE_CHECK(if $1 -fvisibility=hidden option works,$3,[
1090     cf_save_cflags="[$]$2"
1091     $2="[$]$2 -fvisibility=hidden"
1092     AC_TRY_LINK([
1093 __attribute__ ((visibility("default"))) int somefunc() {return 42;}
1094         ],[
1095         if (somefunc()) return 1;
1096 ],
1097     [$3=yes],
1098     [$3=no])
1099     $2=$cf_save_cflags
1100 ])
1101 ])dnl
1102 dnl ---------------------------------------------------------------------------
1103 dnl CF_CHECK_GETENV version: 1 updated: 2019/06/23 15:28:15
1104 dnl ---------------
1105 dnl Check if repeated getenv calls return the same pointer, e.g., it does not
1106 dnl discard the previous pointer when returning a new one.
1107 AC_DEFUN([CF_CHECK_GETENV],
1108 [
1109 AC_REQUIRE([CF_CHECK_ENVIRON])
1110 AC_CHECK_FUNC( getenv, ,, AC_MSG_ERROR(getenv not found) )
1111 AC_CHECK_FUNCS( putenv setenv strdup )
1112 AC_CACHE_CHECK(if getenv returns consistent values,cf_cv_consistent_getenv,[
1113 AC_TRY_RUN([
1114 #include <stdlib.h>
1115 #include <unistd.h>
1116 #include <stdio.h>
1117 #include <string.h>
1118 #include <sys/types.h>
1119
1120 #if defined(HAVE_ENVIRON) && defined(DECL_ENVIRON) && !defined(environ)
1121 extern char **environ;  /* POSIX, but some systems are not... */
1122 #endif
1123
1124 #if defined(HAVE_STRDUP)
1125 #define str_alloc(s) strdup(s)
1126 #else
1127 #define str_alloc(s) strcpy(malloc(strlen(s) + 1, s))
1128 #endif
1129
1130 static void set_value(const char *name, const char *value)
1131 {
1132 #if defined(HAVE_SETENV)
1133         setenv(name, value, 1);
1134 #elif defined(HAVE_PUTENV)
1135         char buffer[1024];
1136         sprintf(buffer, "%s=%s", name, value);
1137         putenv(str_alloc(buffer));
1138 #else
1139 #error neither putenv/setenv found
1140 #endif
1141 }
1142 int main(void)
1143 {
1144         int pass;
1145         size_t numenv, limit, j;
1146         char **mynames;
1147         char **myvalues;
1148         char **mypointer;
1149         char *equals;
1150         for (numenv = 0; environ[numenv]; ++numenv) ;
1151         limit = numenv + 10;
1152         mynames = (char **) calloc(limit + 1, sizeof(char *));
1153         myvalues = (char **) calloc(limit + 1, sizeof(char *));
1154         mypointer = (char **) calloc(limit + 1, sizeof(char *));
1155 #if defined(HAVE_ENVIRON)
1156         for (j = 0; environ[j]; ++j) {
1157                 mynames[j] = str_alloc(environ[j]);
1158                 equals = strchr(mynames[j], '=');
1159                 if (equals != 0) {
1160                         *equals++ = '\0';
1161                         myvalues[j] = str_alloc(equals);
1162                 } else {
1163                         myvalues[j] = str_alloc("");
1164                 }
1165         }
1166 #endif
1167         for (j = numenv; j < limit; ++j) {
1168                 char name[80];
1169                 char value[80];
1170                 size_t found;
1171                 size_t k = 0;
1172                 do {
1173                         size_t jk;
1174                         found = 0;
1175                         sprintf(name, "TERM%lu", (unsigned long) k);
1176                         for (jk = 0; jk < j; ++jk) {
1177                                 if (!strcmp(name, mynames[jk])) {
1178                                         found = 1;
1179                                         ++k;
1180                                         break;
1181                                 }
1182                         }
1183                 } while (found);
1184                 sprintf(value, "%lu:%p", (unsigned long) k, &mynames[j]);
1185                 set_value(name, value);
1186                 mynames[j] = str_alloc(name);
1187                 myvalues[j] = str_alloc(value);
1188         }
1189         for (pass = 0; pass < 3; ++pass) {
1190                 for (j = 0; j < limit; ++j) {
1191                         char *value = getenv(mynames[j]);
1192                         if (pass) {
1193                                 if (value == 0) {
1194                                         fprintf(stderr, "getenv returned null for %s\n", mynames[j]);
1195                                         ${cf_cv_main_return:-return}(1);
1196                                 } else if (value != mypointer[j]) {
1197                                         fprintf(stderr, "getenv returned different pointer for %s\n", mynames[j]);
1198                                         ${cf_cv_main_return:-return}(1);
1199                                 } else if (strcmp(value, myvalues[j])) {
1200                                         fprintf(stderr, "getenv returned different value for %s\n", mynames[j]);
1201                                         ${cf_cv_main_return:-return}(1);
1202                                 }
1203                         } else {
1204                                 size_t k;
1205                                 mypointer[j] = value;
1206                                 for (k = 0; k < j; ++k) {
1207                                         if (mypointer[j] == mypointer[k]) {
1208                                                 fprintf(stderr, "getenv returned same pointer for %s and %s\n", mynames[j], mynames[k]);
1209                                                 ${cf_cv_main_return:-return}(1);
1210                                         }
1211                                 }
1212                         }
1213                 }
1214         }
1215         ${cf_cv_main_return:-return}(0);
1216 }
1217 ],
1218 [cf_cv_consistent_getenv=yes],
1219 [cf_cv_consistent_getenv=no],
1220 [cf_cv_consistent_getenv=unknown])
1221 ])
1222
1223 if test "x$cf_cv_consistent_getenv" = xno
1224 then
1225         AC_DEFINE(HAVE_CONSISTENT_GETENV,1,[Define to 1 if getenv repeatably returns the same value for a given name])
1226 fi
1227 ])dnl
1228 dnl ---------------------------------------------------------------------------
1229 dnl CF_CHECK_GNAT_VERSION version: 3 updated: 2020/05/23 19:39:36
1230 dnl ---------------------
1231 AC_DEFUN([CF_CHECK_GNAT_VERSION],
1232 [
1233 AC_REQUIRE([CF_GNAT_VERSION])
1234 case $cf_cv_gnat_version in
1235 (3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|[[1-9]][[0-9]].[[0-9]]*|20[[0-9]][[0-9]])
1236         cf_cv_prog_gnat_correct=yes
1237         ;;
1238 (*)
1239         AC_MSG_WARN(Unsupported GNAT version $cf_cv_gnat_version. We require 3.11 or better. Disabling Ada95 binding.)
1240         cf_cv_prog_gnat_correct=no
1241         ;;
1242 esac
1243 ])
1244 dnl ---------------------------------------------------------------------------
1245 dnl CF_CHECK_GPM_WGETCH version: 3 updated: 2017/01/21 11:06:25
1246 dnl -------------------
1247 dnl Check if GPM is already linked with curses.  If so - and if the linkage
1248 dnl is not "weak" - warn about this because it can create problems linking
1249 dnl applications with ncurses.
1250 AC_DEFUN([CF_CHECK_GPM_WGETCH],[
1251 AC_CHECK_LIB(gpm,Gpm_Wgetch,[
1252
1253 AC_CACHE_CHECK(if GPM is weakly bound to curses library, cf_cv_check_gpm_wgetch,[
1254 cf_cv_check_gpm_wgetch=unknown
1255 if test "$cross_compiling" != yes ; then
1256
1257 cat >conftest.$ac_ext <<CF_EOF
1258 #include <gpm.h>
1259 int main(void)
1260 {
1261         Gpm_Wgetch();
1262         ${cf_cv_main_return:-return}(0);
1263 }
1264 CF_EOF
1265
1266         cf_save_LIBS="$LIBS"
1267         # This only works if we can look at the symbol table.  If a shared
1268         # library is stripped for install, we cannot use that.  So we're forced
1269         # to rely on the static library, noting that some packagers may not
1270         # include it.
1271         LIBS="-static -lgpm -dynamic $LIBS"
1272         if AC_TRY_EVAL(ac_compile) ; then
1273                 if AC_TRY_EVAL(ac_link) ; then
1274                         cf_cv_check_gpm_wgetch=`nm conftest$ac_exeext | egrep '\<wgetch\>' | egrep '\<[[vVwW]]\>'`
1275                         test -n "$cf_cv_check_gpm_wgetch" && cf_cv_check_gpm_wgetch=yes
1276                         test -z "$cf_cv_check_gpm_wgetch" && cf_cv_check_gpm_wgetch=no
1277                 fi
1278         fi
1279         rm -rf conftest*
1280         LIBS="$cf_save_LIBS"
1281 fi
1282 ])
1283
1284 if test "$cf_cv_check_gpm_wgetch" != yes ; then
1285         AC_MSG_WARN(GPM library is already linked with curses - read the FAQ)
1286 fi
1287 ])])dnl
1288 dnl ---------------------------------------------------------------------------
1289 dnl CF_CHECK_LIBTOOL_VERSION version: 1 updated: 2013/04/06 18:03:09
1290 dnl ------------------------
1291 dnl Show the version of libtool
1292 dnl
1293 dnl Save the version in a cache variable - this is not entirely a good thing,
1294 dnl but the version string from libtool is very ugly, and for bug reports it
1295 dnl might be useful to have the original string.
1296 AC_DEFUN([CF_CHECK_LIBTOOL_VERSION],[
1297 if test -n "$LIBTOOL" && test "$LIBTOOL" != none
1298 then
1299         AC_MSG_CHECKING(version of $LIBTOOL)
1300         CF_LIBTOOL_VERSION
1301         AC_MSG_RESULT($cf_cv_libtool_version)
1302         if test -z "$cf_cv_libtool_version" ; then
1303                 AC_MSG_ERROR(This is not GNU libtool)
1304         fi
1305 else
1306         AC_MSG_ERROR(GNU libtool has not been found)
1307 fi
1308 ])dnl
1309 dnl ---------------------------------------------------------------------------
1310 dnl CF_CHECK_WCHAR_H version: 2 updated: 2017/01/21 11:06:25
1311 dnl ----------------
1312 dnl Check if wchar.h can be used, i.e., without defining _XOPEN_SOURCE_EXTENDED
1313 AC_DEFUN([CF_CHECK_WCHAR_H],[
1314 AC_CHECK_HEADERS( \
1315 wchar.h \
1316 wctype.h \
1317 )
1318 AC_CACHE_CHECK(if wchar.h can be used as is,cf_cv_wchar_h_okay,[
1319 AC_TRY_COMPILE(
1320 [
1321 #include <stdlib.h>
1322 #ifdef HAVE_WCHAR_H
1323 #include <wchar.h>
1324 #endif
1325 #ifdef HAVE_WCTYPE_H
1326 #include <wctype.h>
1327 #endif
1328 ],[
1329         wint_t foo = 0;
1330         int bar = iswpunct(foo)],
1331         [cf_cv_wchar_h_okay=yes],
1332         [cf_cv_wchar_h_okay=no])])
1333
1334 if test $cf_cv_wchar_h_okay = no
1335 then
1336         CF_PREDEFINE(_XOPEN_SOURCE_EXTENDED)
1337 fi
1338 ])dnl
1339 dnl ---------------------------------------------------------------------------
1340 dnl CF_CHECK_WCWIDTH_GRAPHICS version: 1 updated: 2015/12/19 17:47:56
1341 dnl -------------------------
1342 dnl Most "modern" terminal emulators are based to some degree on VT100, and
1343 dnl should support line-drawing.  Even with Unicode.  There is a problem.
1344 dnl
1345 dnl While most of the VT100 graphics characters were incorporated into Unicode,
1346 dnl all of those were combined into a page of useful graphics characters.
1347 dnl
1348 dnl So far, so good.
1349 dnl
1350 dnl However, while they are useful, there are other considerations.  CJK
1351 dnl is (because of poor device resolution) often rendered as double-width
1352 dnl characters.  So... for these generally-useful characters, what should
1353 dnl be the width (to make them consistent with adjacent characters)?
1354 dnl
1355 dnl The obvious choice would have been to make this locale-dependent, and use
1356 dnl wcwidth() to tell applications what the actual width is.  That was too
1357 dnl obvious.  Instead, we have a slew of "ambiguous-width" characters.
1358 dnl See for example
1359 dnl             http://www.unicode.org/reports/tr11/tr11-29.html
1360 dnl             http://www.cl.cam.ac.uk/~mgk25/ucs/scw-proposal.html
1361 dnl
1362 dnl The EastAsianWidth-6.2.0.txt file from the Unicode organization lists
1363 dnl more than 22,000 characters, with 1281 of those as ambiguous-width.  For
1364 dnl instance, it lists half (44/96) of the Latin-1 characters as
1365 dnl ambiguous-width.  Also, all of the box-characters at 0x2500 are ambiguous.
1366 dnl
1367 dnl What this means for the implementor is that on some systems wcwidth() can
1368 dnl give bad advice.  On Solaris, some of the ambiguous widths are returned as
1369 dnl 1 (the Latin-1 characters), while others are returned as 2 (line-drawing
1370 dnl characters).  These do not necessarily match the behavior of the terminal
1371 dnl emulator.  xterm, for instance, does an optional startup check to find if
1372 dnl this problem (or similar) exists with the system's locale tables, rejecting
1373 dnl them if they are too unreliable.
1374 AC_DEFUN([CF_CHECK_WCWIDTH_GRAPHICS],[
1375 AC_CACHE_CHECK(if wcwidth agrees graphics are single-width, cf_cv_wcwidth_graphics,[
1376 cat >conftest.in <<CF_EOF
1377 -       VT100 symbols
1378 0x250c  upper left corner
1379 0x2514  lower left corner
1380 0x2510  upper right corner
1381 0x2518  lower right corner
1382 0x251c  tee pointing left
1383 0x2524  tee pointing right
1384 0x2534  tee pointing up
1385 0x252c  tee pointing down
1386 0x2500  horizontal line
1387 0x2502  vertical line
1388 0x253c  large plus or crossover
1389 0x23ba  scan line 1
1390 0x23bd  scan line 9
1391 0x25c6  diamond
1392 0x2592  checker board (stipple)
1393 0x00b0  degree symbol
1394 0x00b1  plus/minus
1395 0x00b7  bullet
1396 -       Teletype 5410v1 symbols
1397 0x2190  arrow pointing left
1398 0x2192  arrow pointing right
1399 0x2193  arrow pointing down
1400 0x2191  arrow pointing up
1401 0x2592  board of squares
1402 0x2603  lantern symbol
1403 0x25ae  solid square block
1404 -       these defaults were invented for ncurses
1405 0x23bb  scan line 3
1406 0x23bc  scan line 7
1407 0x2264  less-than-or-equal-to
1408 0x2265  greater-than-or-equal-to
1409 0x03c0  greek pi
1410 0x2260  not-equal
1411 0x00a3  pound-sterling symbol
1412 -       thick-line-drawing
1413 0x250f  upper left corner
1414 0x2517  lower left corner
1415 0x2513  upper right corner
1416 0x251b  lower right corner
1417 0x2523  tee pointing left
1418 0x252b  tee pointing right
1419 0x253b  tee pointing up
1420 0x2533  tee pointing down
1421 0x2501  horizontal line
1422 0x2503  vertical line
1423 0x254b  large plus or crossover
1424 -       double-line-drawing
1425 0x2554  upper left corner
1426 0x255a  lower left corner
1427 0x2557  upper right corner
1428 0x255d  lower right corner
1429 0x2563  tee pointing left
1430 0x2560  tee pointing right
1431 0x2569  tee pointing up
1432 0x2566  tee pointing down
1433 0x2550  horizontal line
1434 0x2551  vertical line
1435 0x256c  large plus or crossover
1436 CF_EOF
1437 AC_TRY_RUN([
1438 #include <locale.h>
1439 #include <stdio.h>
1440 #include <wchar.h>
1441
1442 #define MY_LEN 80
1443
1444 int
1445 main(void)
1446 {
1447         FILE *fp;
1448         int value;
1449         char buffer[MY_LEN + 1];
1450         char notes[MY_LEN + 1];
1451         int totals = 0;
1452         int passed = 0;
1453
1454         if (setlocale(LC_ALL, "en_US.UTF8") ||
1455                 setlocale(LC_ALL, "en_US.UTF-8") ||
1456                 setlocale(LC_ALL, "en_US.utf8") ||
1457                 setlocale(LC_ALL, "en_US.utf-8")) {
1458                 if ((fp = fopen("conftest.in", "r")) != 0) {
1459                         while (fgets(buffer, MY_LEN, fp) != 0) {
1460                                 if (*buffer == '-') {
1461                                         fprintf(stderr, "\t%s", buffer);
1462                                 } else if (sscanf(buffer, "%x %s", &value, notes) == 2) {
1463                                         ++totals;
1464                                         if (wcwidth(value) == 1)
1465                                                 ++passed;
1466                                         fprintf(stderr, "%d\t%s", wcwidth(value), buffer);
1467                                 } else {
1468                                         fprintf(stderr, "?\t%s", buffer);
1469                                 }
1470                         }
1471                 }
1472         }
1473         fprintf(stderr, "%d/%d passed wcwidth/graphics check\n", passed, totals);
1474         return (totals == passed) ? 0 : 1;
1475 }
1476 ],
1477 [cf_cv_wcwidth_graphics=yes],
1478 [cf_cv_wcwidth_graphics=no],
1479 [cf_cv_wcwidth_graphics=unknown])
1480 ])
1481 ])dnl
1482 dnl ---------------------------------------------------------------------------
1483 dnl CF_CLANG_COMPILER version: 3 updated: 2020/08/28 04:10:22
1484 dnl -----------------
1485 dnl Check if the given compiler is really clang.  clang's C driver defines
1486 dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
1487 dnl not ignore some gcc options.
1488 dnl
1489 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
1490 dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
1491 dnl the wrappers for gcc and g++ warnings.
1492 dnl
1493 dnl $1 = GCC (default) or GXX
1494 dnl $2 = CLANG_COMPILER (default)
1495 dnl $3 = CFLAGS (default) or CXXFLAGS
1496 AC_DEFUN([CF_CLANG_COMPILER],[
1497 ifelse([$2],,CLANG_COMPILER,[$2])=no
1498
1499 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
1500         AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
1501         cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
1502         ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -Qunused-arguments"
1503         AC_TRY_COMPILE([],[
1504 #ifdef __clang__
1505 #else
1506 make an error
1507 #endif
1508 ],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
1509 cf_save_CFLAGS="$cf_save_CFLAGS -Qunused-arguments"
1510 ],[])
1511         ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
1512         AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
1513 fi
1514
1515 if test "x$CLANG_COMPILER" = "xyes" ; then
1516         CF_APPEND_TEXT(CFLAGS,-Wno-error=implicit-function-declaration)
1517 fi
1518 ])
1519 dnl ---------------------------------------------------------------------------
1520 dnl CF_CONST_X_STRING version: 4 updated: 2020/03/10 18:53:47
1521 dnl -----------------
1522 dnl The X11R4-X11R6 Xt specification uses an ambiguous String type for most
1523 dnl character-strings.
1524 dnl
1525 dnl It is ambiguous because the specification accommodated the pre-ANSI
1526 dnl compilers bundled by more than one vendor in lieu of providing a standard C
1527 dnl compiler other than by costly add-ons.  Because of this, the specification
1528 dnl did not take into account the use of const for telling the compiler that
1529 dnl string literals would be in readonly memory.
1530 dnl
1531 dnl As a workaround, one could (starting with X11R5) define XTSTRINGDEFINES, to
1532 dnl let the compiler decide how to represent Xt's strings which were #define'd. 
1533 dnl That does not solve the problem of using the block of Xt's strings which
1534 dnl are compiled into the library (and is less efficient than one might want).
1535 dnl
1536 dnl Xt specification 7 introduces the _CONST_X_STRING symbol which is used both
1537 dnl when compiling the library and compiling using the library, to tell the
1538 dnl compiler that String is const.
1539 AC_DEFUN([CF_CONST_X_STRING],
1540 [
1541 AC_REQUIRE([AC_PATH_XTRA])
1542
1543 CF_SAVE_XTRA_FLAGS([CF_CONST_X_STRING])
1544
1545 AC_TRY_COMPILE(
1546 [
1547 #include <stdlib.h>
1548 #include <X11/Intrinsic.h>
1549 ],
1550 [String foo = malloc(1); (void)foo],[
1551
1552 AC_CACHE_CHECK(for X11/Xt const-feature,cf_cv_const_x_string,[
1553         AC_TRY_COMPILE(
1554                 [
1555 #define _CONST_X_STRING /* X11R7.8 (perhaps) */
1556 #undef  XTSTRINGDEFINES /* X11R5 and later */
1557 #include <stdlib.h>
1558 #include <X11/Intrinsic.h>
1559                 ],[String foo = malloc(1); *foo = 0],[
1560                         cf_cv_const_x_string=no
1561                 ],[
1562                         cf_cv_const_x_string=yes
1563                 ])
1564 ])
1565
1566 CF_RESTORE_XTRA_FLAGS([CF_CONST_X_STRING])
1567
1568 case $cf_cv_const_x_string in
1569 (no)
1570         CF_APPEND_TEXT(CPPFLAGS,-DXTSTRINGDEFINES)
1571         ;;
1572 (*)
1573         CF_APPEND_TEXT(CPPFLAGS,-D_CONST_X_STRING)
1574         ;;
1575 esac
1576
1577 ])
1578 ])dnl
1579 dnl ---------------------------------------------------------------------------
1580 dnl CF_CPP_PARAM_INIT version: 7 updated: 2017/01/21 11:06:25
1581 dnl -----------------
1582 dnl Check if the C++ compiler accepts duplicate parameter initialization.  This
1583 dnl is a late feature for the standard and is not in some recent compilers
1584 dnl (1999/9/11).
1585 AC_DEFUN([CF_CPP_PARAM_INIT],
1586 [
1587 if test -n "$CXX"; then
1588 AC_CACHE_CHECK(if $CXX accepts parameter initialization,cf_cv_cpp_param_init,[
1589         AC_LANG_SAVE
1590         AC_LANG_CPLUSPLUS
1591         AC_TRY_RUN([
1592 class TEST {
1593 private:
1594         int value;
1595 public:
1596         TEST(int x = 1);
1597         ~TEST();
1598 };
1599
1600 TEST::TEST(int x = 1)   // some compilers do not like second initializer
1601 {
1602         value = x;
1603 }
1604 int main(void) { }
1605 ],
1606         [cf_cv_cpp_param_init=yes],
1607         [cf_cv_cpp_param_init=no],
1608         [cf_cv_cpp_param_init=unknown])
1609         AC_LANG_RESTORE
1610 ])
1611 fi
1612 test "$cf_cv_cpp_param_init" = yes && AC_DEFINE(CPP_HAS_PARAM_INIT,1,[Define to 1 if C++ has parameter initialization])
1613 ])dnl
1614 dnl ---------------------------------------------------------------------------
1615 dnl CF_CPP_STATIC_CAST version: 3 updated: 2013/04/13 18:03:21
1616 dnl ------------------
1617 dnl Check if the C++ compiler accepts static_cast in generics.  This appears to
1618 dnl not be supported in g++ before 3.0
1619 AC_DEFUN([CF_CPP_STATIC_CAST],
1620 [
1621 if test -n "$CXX"; then
1622
1623 AC_CACHE_CHECK(if $CXX accepts static_cast,cf_cv_cpp_static_cast,[
1624         AC_LANG_SAVE
1625         AC_LANG_CPLUSPLUS
1626
1627         AC_TRY_COMPILE([
1628 class NCursesPanel
1629 {
1630 public:
1631   NCursesPanel(int nlines,
1632                int ncols,
1633                int begin_y = 0,
1634                int begin_x = 0)
1635   {
1636   }
1637   NCursesPanel();
1638   ~NCursesPanel();
1639 };
1640
1641 template<class T> class NCursesUserPanel : public NCursesPanel
1642 {
1643 public:
1644   NCursesUserPanel (int nlines,
1645                     int ncols,
1646                     int begin_y = 0,
1647                     int begin_x = 0,
1648                     const T* p_UserData = static_cast<T*>(0))
1649     : NCursesPanel (nlines, ncols, begin_y, begin_x)
1650   {
1651   };
1652   NCursesUserPanel(const T* p_UserData = static_cast<T*>(0)) : NCursesPanel()
1653   {
1654   };
1655
1656   virtual ~NCursesUserPanel() {};
1657 };
1658 ],[
1659         const char* p_UserData = static_cast<char*>(0)],
1660         [cf_cv_cpp_static_cast=yes],
1661         [cf_cv_cpp_static_cast=no])
1662
1663         AC_LANG_RESTORE
1664 ])
1665
1666 fi
1667
1668 test "$cf_cv_cpp_static_cast" = yes && AC_DEFINE(CPP_HAS_STATIC_CAST,1,[Define to 1 if C++ has static_cast])
1669 ])dnl
1670 dnl ---------------------------------------------------------------------------
1671 dnl CF_CXX_AR_FLAGS version: 2 updated: 2015/04/17 21:13:04
1672 dnl ---------------
1673 dnl Setup special archiver flags for given compilers.
1674 AC_DEFUN([CF_CXX_AR_FLAGS],[
1675         CXX_AR='$(AR)'
1676         CXX_ARFLAGS='$(ARFLAGS)'
1677         case $cf_cv_system_name in
1678         (irix*)
1679             if test "$GXX" != yes ; then
1680                 CXX_AR='$(CXX)'
1681                 CXX_ARFLAGS='-ar -o'
1682             fi
1683             ;;
1684         (sco3.2v5*)
1685             CXXLDFLAGS="-u main"
1686             ;;
1687         (solaris2*)
1688             if test "$GXX" != yes ; then
1689                 CXX_AR='$(CXX)'
1690                 CXX_ARFLAGS='-xar -o'
1691             fi
1692             ;;
1693         esac
1694         AC_SUBST(CXXLDFLAGS)
1695         AC_SUBST(CXX_AR)
1696         AC_SUBST(CXX_ARFLAGS)
1697 ])dnl
1698 dnl ---------------------------------------------------------------------------
1699 dnl CF_CXX_IOSTREAM_NAMESPACE version: 2 updated: 2012/10/06 17:56:13
1700 dnl -------------------------
1701 dnl For c++, check if iostream uses "std::" namespace.
1702 AC_DEFUN([CF_CXX_IOSTREAM_NAMESPACE],[
1703 AC_CHECK_HEADERS(iostream)
1704 if test x"$ac_cv_header_iostream" = xyes ; then
1705         AC_MSG_CHECKING(if iostream uses std-namespace)
1706         AC_TRY_COMPILE([
1707 #include <iostream>
1708 using std::endl;
1709 using std::cerr;],[
1710 cerr << "testing" << endl;
1711 ],[cf_iostream_namespace=yes],[cf_iostream_namespace=no])
1712         AC_MSG_RESULT($cf_iostream_namespace)
1713         if test "$cf_iostream_namespace" = yes ; then
1714                 AC_DEFINE(IOSTREAM_NAMESPACE,1,[Define to 1 if C++ has namespace iostream])
1715         fi
1716 fi
1717 ])dnl
1718 dnl ---------------------------------------------------------------------------
1719 dnl CF_C_INLINE version: 6 updated: 2019/09/07 13:38:36
1720 dnl -----------
1721 dnl Check if the C compiler supports "inline".
1722 dnl $1 is the name of a shell variable to set if inline is supported
1723 dnl $2 is the threshold for gcc 4.x's option controlling maximum inline size
1724 AC_DEFUN([CF_C_INLINE],[
1725 AC_REQUIRE([CF_GCC_VERSION])
1726 AC_C_INLINE
1727 $1=
1728 if test "$ac_cv_c_inline" != no ; then
1729         $1=inline
1730         if test "$INTEL_COMPILER" = yes
1731         then
1732                 :
1733         elif test "$CLANG_COMPILER" = yes
1734         then
1735                 :
1736         elif test "$GCC" = yes
1737         then
1738                 AC_CACHE_CHECK(if $CC supports options to tune inlining,cf_cv_gcc_inline,[
1739                 cf_save_CFLAGS=$CFLAGS
1740                 CFLAGS="$CFLAGS --param max-inline-insns-single=$2"
1741                 AC_TRY_COMPILE([inline int foo(void) { return 1; }],
1742                 [${cf_cv_main_return:-return} foo()],
1743                 [cf_cv_gcc_inline=yes],
1744                 [cf_cv_gcc_inline=no])
1745                 CFLAGS=$cf_save_CFLAGS
1746                 ])
1747                 if test "$cf_cv_gcc_inline" = yes ; then
1748                         CF_ADD_CFLAGS([--param max-inline-insns-single=$2])
1749                 fi
1750         fi
1751 fi
1752 AC_SUBST($1)
1753 ])dnl
1754 dnl ---------------------------------------------------------------------------
1755 dnl CF_DIRNAME version: 4 updated: 2002/12/21 19:25:52
1756 dnl ----------
1757 dnl "dirname" is not portable, so we fake it with a shell script.
1758 AC_DEFUN([CF_DIRNAME],[$1=`echo $2 | sed -e 's%/[[^/]]*$%%'`])dnl
1759 dnl ---------------------------------------------------------------------------
1760 dnl CF_DIRS_TO_MAKE version: 3 updated: 2002/02/23 20:38:31
1761 dnl ---------------
1762 AC_DEFUN([CF_DIRS_TO_MAKE],
1763 [
1764 DIRS_TO_MAKE="lib"
1765 for cf_item in $cf_list_models
1766 do
1767         CF_OBJ_SUBDIR($cf_item,cf_subdir)
1768         for cf_item2 in $DIRS_TO_MAKE
1769         do
1770                 test $cf_item2 = $cf_subdir && break
1771         done
1772         test ".$cf_item2" != ".$cf_subdir" && DIRS_TO_MAKE="$DIRS_TO_MAKE $cf_subdir"
1773 done
1774 for cf_dir in $DIRS_TO_MAKE
1775 do
1776         test ! -d $cf_dir && mkdir $cf_dir
1777 done
1778 AC_SUBST(DIRS_TO_MAKE)
1779 ])dnl
1780 dnl ---------------------------------------------------------------------------
1781 dnl CF_DISABLE_ECHO version: 13 updated: 2015/04/18 08:56:57
1782 dnl ---------------
1783 dnl You can always use "make -n" to see the actual options, but it's hard to
1784 dnl pick out/analyze warning messages when the compile-line is long.
1785 dnl
1786 dnl Sets:
1787 dnl     ECHO_LT - symbol to control if libtool is verbose
1788 dnl     ECHO_LD - symbol to prefix "cc -o" lines
1789 dnl     RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
1790 dnl     SHOW_CC - symbol to put before explicit "cc -c" lines
1791 dnl     ECHO_CC - symbol to put before any "cc" line
1792 dnl
1793 AC_DEFUN([CF_DISABLE_ECHO],[
1794 AC_MSG_CHECKING(if you want to see long compiling messages)
1795 CF_ARG_DISABLE(echo,
1796         [  --disable-echo          do not display "compiling" commands],
1797         [
1798         ECHO_LT='--silent'
1799         ECHO_LD='@echo linking [$]@;'
1800         RULE_CC='@echo compiling [$]<'
1801         SHOW_CC='@echo compiling [$]@'
1802         ECHO_CC='@'
1803 ],[
1804         ECHO_LT=''
1805         ECHO_LD=''
1806         RULE_CC=''
1807         SHOW_CC=''
1808         ECHO_CC=''
1809 ])
1810 AC_MSG_RESULT($enableval)
1811 AC_SUBST(ECHO_LT)
1812 AC_SUBST(ECHO_LD)
1813 AC_SUBST(RULE_CC)
1814 AC_SUBST(SHOW_CC)
1815 AC_SUBST(ECHO_CC)
1816 ])dnl
1817 dnl ---------------------------------------------------------------------------
1818 dnl CF_DISABLE_GNAT_PROJECTS version: 1 updated: 2014/06/01 11:34:00
1819 dnl ------------------------
1820 AC_DEFUN([CF_DISABLE_GNAT_PROJECTS],[
1821 AC_MSG_CHECKING(if we want to use GNAT projects)
1822 CF_ARG_DISABLE(gnat-projects,
1823         [  --disable-gnat-projects test: disable GNAT projects even if usable],
1824         [enable_gnat_projects=no],
1825         [enable_gnat_projects=yes])
1826 AC_MSG_RESULT($enable_gnat_projects)
1827 ])dnl
1828 dnl ---------------------------------------------------------------------------
1829 dnl CF_DISABLE_LEAKS version: 7 updated: 2012/10/02 20:55:03
1830 dnl ----------------
1831 dnl Combine no-leak checks with the libraries or tools that are used for the
1832 dnl checks.
1833 AC_DEFUN([CF_DISABLE_LEAKS],[
1834
1835 AC_REQUIRE([CF_WITH_DMALLOC])
1836 AC_REQUIRE([CF_WITH_DBMALLOC])
1837 AC_REQUIRE([CF_WITH_VALGRIND])
1838
1839 AC_MSG_CHECKING(if you want to perform memory-leak testing)
1840 AC_ARG_ENABLE(leaks,
1841         [  --disable-leaks         test: free permanent memory, analyze leaks],
1842         [if test "x$enableval" = xno; then with_no_leaks=yes; else with_no_leaks=no; fi],
1843         : ${with_no_leaks:=no})
1844 AC_MSG_RESULT($with_no_leaks)
1845
1846 if test "$with_no_leaks" = yes ; then
1847         AC_DEFINE(NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
1848         AC_DEFINE(YY_NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
1849 fi
1850 ])dnl
1851 dnl ---------------------------------------------------------------------------
1852 dnl CF_DISABLE_LIBTOOL_VERSION version: 3 updated: 2015/04/17 21:13:04
1853 dnl --------------------------
1854 dnl Check if we should use the libtool 1.5 feature "-version-number" instead of
1855 dnl the older "-version-info" feature.  The newer feature allows us to use
1856 dnl version numbering on shared libraries which make them compatible with
1857 dnl various systems.
1858 AC_DEFUN([CF_DISABLE_LIBTOOL_VERSION],
1859 [
1860 AC_MSG_CHECKING(if libtool -version-number should be used)
1861 CF_ARG_DISABLE(libtool-version,
1862         [  --disable-libtool-version  enable to use libtool's incompatible naming scheme],
1863         [cf_libtool_version=no],
1864         [cf_libtool_version=yes])
1865 AC_MSG_RESULT($cf_libtool_version)
1866
1867 if test "$cf_libtool_version" = yes ; then
1868         LIBTOOL_VERSION="-version-number"
1869 else
1870         LIBTOOL_VERSION="-version-info"
1871         case "x$VERSION" in
1872         (x)
1873                 AC_MSG_WARN(VERSION was not set)
1874                 ;;
1875         (x*.*.*)
1876                 ABI_VERSION="$VERSION"
1877                 CF_VERBOSE(ABI_VERSION: $ABI_VERSION)
1878                 ;;
1879         (x*:*:*)
1880                 ABI_VERSION=`echo "$VERSION" | sed -e 's/:/./g'`
1881                 CF_VERBOSE(ABI_VERSION: $ABI_VERSION)
1882                 ;;
1883         (*)
1884                 AC_MSG_WARN(unexpected VERSION value: $VERSION)
1885                 ;;
1886         esac
1887 fi
1888
1889 AC_SUBST(ABI_VERSION)
1890 AC_SUBST(LIBTOOL_VERSION)
1891 ])dnl
1892 dnl ---------------------------------------------------------------------------
1893 dnl CF_DISABLE_RPATH_HACK version: 2 updated: 2011/02/13 13:31:33
1894 dnl ---------------------
1895 dnl The rpath-hack makes it simpler to build programs, particularly with the
1896 dnl *BSD ports which may have essential libraries in unusual places.  But it
1897 dnl can interfere with building an executable for the base system.  Use this
1898 dnl option in that case.
1899 AC_DEFUN([CF_DISABLE_RPATH_HACK],
1900 [
1901 AC_MSG_CHECKING(if rpath-hack should be disabled)
1902 CF_ARG_DISABLE(rpath-hack,
1903         [  --disable-rpath-hack    don't add rpath options for additional libraries],
1904         [cf_disable_rpath_hack=yes],
1905         [cf_disable_rpath_hack=no])
1906 AC_MSG_RESULT($cf_disable_rpath_hack)
1907 if test "$cf_disable_rpath_hack" = no ; then
1908         CF_RPATH_HACK
1909 fi
1910 ])
1911 dnl ---------------------------------------------------------------------------
1912 dnl CF_ENABLE_BROKEN_LINKER version: 1 updated: 2020/02/08 15:59:30
1913 dnl -----------------------
1914 dnl Some linkers cannot reference a data-only object.  Cygwin used to be one.
1915 dnl This usually follows CF_LINK_DATAONLY, but is not required in case we need
1916 dnl an unconditional feature.
1917 AC_DEFUN([CF_ENABLE_BROKEN_LINKER],[
1918
1919 AC_MSG_CHECKING(if you want broken-linker support code)
1920 AC_ARG_ENABLE(broken_linker,
1921         [  --enable-broken_linker  compile with broken-linker support code],
1922         [with_broken_linker=$enableval],
1923         [with_broken_linker=no])
1924 AC_MSG_RESULT($with_broken_linker)
1925
1926 : ${BROKEN_LINKER:=0}
1927 if test "x$with_broken_linker" = xyes ; then
1928         AC_DEFINE(BROKEN_LINKER,1,[Define to 1 to work around linkers which cannot link data-only modules])
1929         BROKEN_LINKER=1
1930 fi
1931 AC_SUBST(BROKEN_LINKER)
1932 ])dnl
1933 dnl ---------------------------------------------------------------------------
1934 dnl CF_ENABLE_PC_FILES version: 13 updated: 2015/11/01 05:27:39
1935 dnl ------------------
1936 dnl This is the "--enable-pc-files" option, which is available if there is a
1937 dnl pkg-config configuration on the local machine.
1938 AC_DEFUN([CF_ENABLE_PC_FILES],[
1939 AC_REQUIRE([CF_PKG_CONFIG])
1940 AC_REQUIRE([CF_WITH_PKG_CONFIG_LIBDIR])
1941
1942 if test "x$PKG_CONFIG" != xnone
1943 then
1944         AC_MSG_CHECKING(if we should install .pc files for $PKG_CONFIG)
1945 else
1946         AC_MSG_CHECKING(if we should install .pc files)
1947 fi
1948
1949 AC_ARG_ENABLE(pc-files,
1950         [  --enable-pc-files       generate and install .pc files for pkg-config],
1951         [enable_pc_files=$enableval],
1952         [enable_pc_files=no])
1953 AC_MSG_RESULT($enable_pc_files)
1954
1955 if test "x$enable_pc_files" != xno
1956 then
1957         MAKE_PC_FILES=
1958         case "x$PKG_CONFIG_LIBDIR" in
1959         (xno|xyes)
1960                 AC_MSG_WARN(no PKG_CONFIG_LIBDIR was found)
1961                 ;;
1962         (*)
1963                 CF_PATH_SYNTAX(PKG_CONFIG_LIBDIR)
1964                 ;;
1965         esac
1966 else
1967         MAKE_PC_FILES="#"
1968 fi
1969 AC_SUBST(MAKE_PC_FILES)
1970 ])dnl
1971 dnl ---------------------------------------------------------------------------
1972 dnl CF_ENABLE_RPATH version: 2 updated: 2010/03/27 18:39:42
1973 dnl ---------------
1974 dnl Check if the rpath option should be used, setting cache variable
1975 dnl cf_cv_enable_rpath if so.
1976 AC_DEFUN([CF_ENABLE_RPATH],
1977 [
1978 AC_MSG_CHECKING(if rpath option should be used)
1979 AC_ARG_ENABLE(rpath,
1980 [  --enable-rpath          use rpath option when generating shared libraries],
1981 [cf_cv_enable_rpath=$enableval],
1982 [cf_cv_enable_rpath=no])
1983 AC_MSG_RESULT($cf_cv_enable_rpath)
1984 ])dnl
1985 dnl ---------------------------------------------------------------------------
1986 dnl CF_ENABLE_STRING_HACKS version: 5 updated: 2016/10/08 17:34:11
1987 dnl ----------------------
1988 dnl On a few platforms, the compiler and/or loader nags with untruthful
1989 dnl comments stating that "most" uses of strcat/strcpy/sprintf are incorrect,
1990 dnl and implying that most uses of the recommended alternatives are correct.
1991 dnl
1992 dnl Factually speaking, no one has actually counted the number of uses of these
1993 dnl functions versus the total of incorrect uses.  Samples of a few thousand
1994 dnl instances are meaningless compared to the hundreds of millions of lines of
1995 dnl existing C code.
1996 dnl
1997 dnl strlcat/strlcpy are (as of 2012) non-standard, and are available on some
1998 dnl platforms, in implementations of varying quality.  Likewise, snprintf is
1999 dnl standard - but evolved through phases, and older implementations are likely
2000 dnl to yield surprising results, as documented in manpages on various systems.
2001 AC_DEFUN([CF_ENABLE_STRING_HACKS],
2002 [
2003 AC_MSG_CHECKING(if you want to work around bogus compiler/loader warnings)
2004 AC_ARG_ENABLE(string-hacks,
2005         [  --enable-string-hacks   work around bogus compiler/loader warnings],
2006         [with_string_hacks=$enableval],
2007         [with_string_hacks=no])
2008 AC_MSG_RESULT($with_string_hacks)
2009
2010 if test "x$with_string_hacks" = "xyes"; then
2011         AC_DEFINE(USE_STRING_HACKS,1,[Define to 1 to work around bogus compiler/loader warnings])
2012         AC_MSG_WARN(enabling string-hacks to work around bogus compiler/loader warnings)
2013         AC_CHECK_FUNC(strlcat,[
2014                 AC_DEFINE(HAVE_STRLCAT,1,[Define to 1 if we have strlcat function])
2015                 ],[
2016                 AC_CHECK_LIB(bsd,strlcat,[
2017                         CF_ADD_LIB(bsd)
2018                         AC_CHECK_HEADERS(bsd/string.h)
2019                         AC_DEFINE(HAVE_STRLCAT,1,[Define to 1 if we have strlcat function])
2020                         ])
2021                 ])
2022         AC_CHECK_FUNCS( strlcpy snprintf )
2023 fi
2024 ])dnl
2025 dnl ---------------------------------------------------------------------------
2026 dnl CF_ENABLE_WARNINGS version: 7 updated: 2020/08/29 09:05:21
2027 dnl ------------------
2028 dnl Configure-option to enable gcc warnings
2029 dnl
2030 dnl $1 = extra options to add, if supported
2031 dnl $2 = option for checking attributes.  By default, this is done when
2032 dnl      warnings are enabled.  For other values:
2033 dnl      yes: always do this, e.g., to use in generated library-headers
2034 dnl      no: never do this
2035 AC_DEFUN([CF_ENABLE_WARNINGS],[
2036 if ( test "$GCC" = yes || test "$GXX" = yes )
2037 then
2038 CF_FIX_WARNINGS(CFLAGS)
2039 CF_FIX_WARNINGS(CPPFLAGS)
2040 CF_FIX_WARNINGS(LDFLAGS)
2041 AC_MSG_CHECKING(if you want to turn on gcc warnings)
2042 CF_ARG_ENABLE(warnings,
2043         [  --enable-warnings       test: turn on gcc compiler warnings],
2044         [with_warnings=yes],
2045         [with_warnings=no])
2046 AC_MSG_RESULT($with_warnings)
2047 if test "$with_warnings" = "yes"
2048 then
2049         ifelse($2,,[CF_GCC_ATTRIBUTES])
2050         CF_GCC_WARNINGS($1)
2051 fi
2052 ifelse($2,yes,[CF_GCC_ATTRIBUTES])
2053 fi
2054 ])dnl
2055 dnl ---------------------------------------------------------------------------
2056 dnl CF_ERRNO version: 5 updated: 1997/11/30 12:44:39
2057 dnl --------
2058 dnl Check if 'errno' is declared in <errno.h>
2059 AC_DEFUN([CF_ERRNO],
2060 [
2061 CF_CHECK_ERRNO(errno)
2062 ])dnl
2063 dnl ---------------------------------------------------------------------------
2064 dnl CF_ETIP_DEFINES version: 5 updated: 2012/02/18 17:51:07
2065 dnl ---------------
2066 dnl Test for conflicting definitions of exception in gcc 2.8.0, etc., between
2067 dnl math.h and builtin.h, only for ncurses
2068 AC_DEFUN([CF_ETIP_DEFINES],
2069 [
2070 AC_MSG_CHECKING(for special defines needed for etip.h)
2071 cf_save_CXXFLAGS="$CXXFLAGS"
2072 cf_result="none"
2073
2074 # etip.h includes ncurses.h which includes ncurses_dll.h
2075 # But ncurses_dll.h is generated - fix here.
2076 test -d include || mkdir include
2077 test -f include/ncurses_dll.h || sed -e 's/@NCURSES_WRAP_PREFIX@/'$NCURSES_WRAP_PREFIX'/g' ${srcdir}/include/ncurses_dll.h.in >include/ncurses_dll.h
2078
2079 for cf_math in "" MATH_H
2080 do
2081 for cf_excp in "" MATH_EXCEPTION
2082 do
2083         CXXFLAGS="$cf_save_CXXFLAGS -I${srcdir}/c++ -I${srcdir}/menu -Iinclude -I${srcdir}/include"
2084         test -n "$cf_math" && CXXFLAGS="$CXXFLAGS -DETIP_NEEDS_${cf_math}"
2085         test -n "$cf_excp" && CXXFLAGS="$CXXFLAGS -DETIP_NEEDS_${cf_excp}"
2086 AC_TRY_COMPILE([
2087 #include <etip.h.in>
2088 ],[],[
2089         test -n "$cf_math" && AC_DEFINE_UNQUOTED(ETIP_NEEDS_${cf_math})
2090         test -n "$cf_excp" && AC_DEFINE_UNQUOTED(ETIP_NEEDS_${cf_excp})
2091         cf_result="$cf_math $cf_excp"
2092         break 2
2093 ],[])
2094 done
2095 done
2096 AC_MSG_RESULT($cf_result)
2097 CXXFLAGS="$cf_save_CXXFLAGS"
2098 ])
2099 dnl ---------------------------------------------------------------------------
2100 dnl CF_FIND_LINKAGE version: 21 updated: 2018/06/20 20:23:13
2101 dnl ---------------
2102 dnl Find a library (specifically the linkage used in the code fragment),
2103 dnl searching for it if it is not already in the library path.
2104 dnl See also CF_ADD_SEARCHPATH.
2105 dnl
2106 dnl Parameters (4-on are optional):
2107 dnl     $1 = headers for library entrypoint
2108 dnl     $2 = code fragment for library entrypoint
2109 dnl     $3 = the library name without the "-l" option or ".so" suffix.
2110 dnl     $4 = action to perform if successful (default: update CPPFLAGS, etc)
2111 dnl     $5 = action to perform if not successful
2112 dnl     $6 = module name, if not the same as the library name
2113 dnl     $7 = extra libraries
2114 dnl
2115 dnl Sets these variables:
2116 dnl     $cf_cv_find_linkage_$3 - yes/no according to whether linkage is found
2117 dnl     $cf_cv_header_path_$3 - include-directory if needed
2118 dnl     $cf_cv_library_path_$3 - library-directory if needed
2119 dnl     $cf_cv_library_file_$3 - library-file if needed, e.g., -l$3
2120 AC_DEFUN([CF_FIND_LINKAGE],[
2121
2122 # If the linkage is not already in the $CPPFLAGS/$LDFLAGS configuration, these
2123 # will be set on completion of the AC_TRY_LINK below.
2124 cf_cv_header_path_$3=
2125 cf_cv_library_path_$3=
2126
2127 CF_MSG_LOG([Starting [FIND_LINKAGE]($3,$6)])
2128
2129 cf_save_LIBS="$LIBS"
2130
2131 AC_TRY_LINK([$1],[$2],[
2132         cf_cv_find_linkage_$3=yes
2133         cf_cv_header_path_$3=/usr/include
2134         cf_cv_library_path_$3=/usr/lib
2135 ],[
2136
2137 LIBS="-l$3 $7 $cf_save_LIBS"
2138
2139 AC_TRY_LINK([$1],[$2],[
2140         cf_cv_find_linkage_$3=yes
2141         cf_cv_header_path_$3=/usr/include
2142         cf_cv_library_path_$3=/usr/lib
2143         cf_cv_library_file_$3="-l$3"
2144 ],[
2145         cf_cv_find_linkage_$3=no
2146         LIBS="$cf_save_LIBS"
2147
2148         CF_VERBOSE(find linkage for $3 library)
2149         CF_MSG_LOG([Searching for headers in [FIND_LINKAGE]($3,$6)])
2150
2151         cf_save_CPPFLAGS="$CPPFLAGS"
2152         cf_test_CPPFLAGS="$CPPFLAGS"
2153
2154         CF_HEADER_PATH(cf_search,ifelse([$6],,[$3],[$6]))
2155         for cf_cv_header_path_$3 in $cf_search
2156         do
2157                 if test -d $cf_cv_header_path_$3 ; then
2158                         CF_VERBOSE(... testing $cf_cv_header_path_$3)
2159                         CPPFLAGS="$cf_save_CPPFLAGS"
2160                         CF_APPEND_TEXT(CPPFLAGS,-I$cf_cv_header_path_$3)
2161                         AC_TRY_COMPILE([$1],[$2],[
2162                                 CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
2163                                 cf_cv_find_linkage_$3=maybe
2164                                 cf_test_CPPFLAGS="$CPPFLAGS"
2165                                 break],[
2166                                 CPPFLAGS="$cf_save_CPPFLAGS"
2167                                 ])
2168                 fi
2169         done
2170
2171         if test "$cf_cv_find_linkage_$3" = maybe ; then
2172
2173                 CF_MSG_LOG([Searching for $3 library in [FIND_LINKAGE]($3,$6)])
2174
2175                 cf_save_LIBS="$LIBS"
2176                 cf_save_LDFLAGS="$LDFLAGS"
2177
2178                 ifelse([$6],,,[
2179                 CPPFLAGS="$cf_test_CPPFLAGS"
2180                 LIBS="-l$3 $7 $cf_save_LIBS"
2181                 AC_TRY_LINK([$1],[$2],[
2182                         CF_VERBOSE(... found $3 library in system)
2183                         cf_cv_find_linkage_$3=yes])
2184                         CPPFLAGS="$cf_save_CPPFLAGS"
2185                         LIBS="$cf_save_LIBS"
2186                         ])
2187
2188                 if test "$cf_cv_find_linkage_$3" != yes ; then
2189                         CF_LIBRARY_PATH(cf_search,$3)
2190                         for cf_cv_library_path_$3 in $cf_search
2191                         do
2192                                 if test -d $cf_cv_library_path_$3 ; then
2193                                         CF_VERBOSE(... testing $cf_cv_library_path_$3)
2194                                         CPPFLAGS="$cf_test_CPPFLAGS"
2195                                         LIBS="-l$3 $7 $cf_save_LIBS"
2196                                         LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_$3"
2197                                         AC_TRY_LINK([$1],[$2],[
2198                                         CF_VERBOSE(... found $3 library in $cf_cv_library_path_$3)
2199                                         cf_cv_find_linkage_$3=yes
2200                                         cf_cv_library_file_$3="-l$3"
2201                                         break],[
2202                                         CPPFLAGS="$cf_save_CPPFLAGS"
2203                                         LIBS="$cf_save_LIBS"
2204                                         LDFLAGS="$cf_save_LDFLAGS"
2205                                         ])
2206                                 fi
2207                         done
2208                         CPPFLAGS="$cf_save_CPPFLAGS"
2209                         LDFLAGS="$cf_save_LDFLAGS"
2210                 fi
2211
2212         else
2213                 cf_cv_find_linkage_$3=no
2214         fi
2215         ],$7)
2216 ])
2217
2218 LIBS="$cf_save_LIBS"
2219
2220 if test "$cf_cv_find_linkage_$3" = yes ; then
2221 ifelse([$4],,[
2222         CF_ADD_INCDIR($cf_cv_header_path_$3)
2223         CF_ADD_LIBDIR($cf_cv_library_path_$3)
2224         CF_ADD_LIB($3)
2225 ],[$4])
2226 else
2227 ifelse([$5],,AC_MSG_WARN(Cannot find $3 library),[$5])
2228 fi
2229 ])dnl
2230 dnl ---------------------------------------------------------------------------
2231 dnl CF_FIND_SUB_INCDIR version: 2 updated: 2015/04/17 21:13:04
2232 dnl ------------------
2233 dnl Find an include-directory with the given leaf-name.  This is useful for
2234 dnl example with FreeBSD ports, which use this convention to distinguish
2235 dnl different versions of the same port.
2236 AC_DEFUN([CF_FIND_SUB_INCDIR],[
2237         CF_SUBDIR_PATH(cf_search,$1,include)
2238         for cf_item in $cf_search
2239         do
2240                 case $cf_item in
2241                 (*/$1)
2242                         CF_ADD_INCDIR($cf_item)
2243                         ;;
2244                 esac
2245         done
2246 ])dnl
2247 dnl ---------------------------------------------------------------------------
2248 dnl CF_FIND_SUB_LIBDIR version: 2 updated: 2015/04/17 21:13:04
2249 dnl ------------------
2250 dnl Find a library-directory with the given leaf-name.  This is useful for
2251 dnl example with FreeBSD ports, which use this convention to distinguish
2252 dnl different versions of the same port.
2253 AC_DEFUN([CF_FIND_SUB_LIBDIR],[
2254         CF_SUBDIR_PATH(cf_search,$1,lib)
2255         for cf_item in $cf_search
2256         do
2257                 case $cf_item in
2258                 (*/$1)
2259                         CF_ADD_LIBDIR($cf_item)
2260                         ;;
2261                 esac
2262         done
2263 ])dnl
2264 dnl ---------------------------------------------------------------------------
2265 dnl CF_FIXUP_ADAFLAGS version: 2 updated: 2015/04/17 21:13:04
2266 dnl -----------------
2267 dnl make ADAFLAGS consistent with CFLAGS
2268 AC_DEFUN([CF_FIXUP_ADAFLAGS],[
2269         AC_MSG_CHECKING(optimization options for ADAFLAGS)
2270         case "$CFLAGS" in
2271         (*-g*)
2272                 CF_ADD_ADAFLAGS(-g)
2273                 ;;
2274         esac
2275         case "$CFLAGS" in
2276         (*-O*)
2277                 cf_O_flag=`echo "$CFLAGS" |sed -e 's/^.*-O/-O/' -e 's/[[        ]].*//'`
2278                 CF_ADD_ADAFLAGS($cf_O_flag)
2279                 ;;
2280         esac
2281         AC_MSG_RESULT($ADAFLAGS)
2282 ])dnl
2283 dnl ---------------------------------------------------------------------------
2284 dnl CF_FIX_WARNINGS version: 2 updated: 2020/08/28 15:08:28
2285 dnl ---------------
2286 dnl Warning flags do not belong in CFLAGS, CPPFLAGS, etc.  Any of gcc's
2287 dnl "-Werror" flags can interfere with configure-checks.  Those go into
2288 dnl EXTRA_CFLAGS.
2289 dnl
2290 dnl $1 = variable name to repair
2291 define([CF_FIX_WARNINGS],[
2292 if ( test "$GCC" = yes || test "$GXX" = yes )
2293 then
2294         case [$]$1 in
2295         (*-Werror=*)
2296                 CF_VERBOSE(repairing $1: [$]$1)
2297                 cf_temp_flags=
2298                 for cf_temp_scan in [$]$1
2299                 do
2300                         case "x$cf_temp_scan" in
2301                         (x-Werror=*)
2302                                 CF_APPEND_TEXT(EXTRA_CFLAGS,"$cf_temp_scan")
2303                                 ;;
2304                         (*)
2305                                 CF_APPEND_TEXT(cf_temp_flags,"$cf_temp_scan")
2306                                 ;;
2307                         esac
2308                 done
2309                 $1="$cf_temp_flags"
2310                 CF_VERBOSE(... fixed [$]$1)
2311                 CF_VERBOSE(... extra $EXTRA_CFLAGS)
2312                 ;;
2313         esac
2314 fi
2315 AC_SUBST(EXTRA_CFLAGS)
2316 ])dnl
2317 dnl ---------------------------------------------------------------------------
2318 dnl CF_FOPEN_BIN_R version: 2 updated: 2019/12/31 08:53:54
2319 dnl --------------
2320 dnl Check if fopen works when the "b" (binary) flag is added to the mode
2321 dnl parameter.  POSIX ignores the "b", which c89 specified.  Some very old
2322 dnl systems do not accept it.
2323 AC_DEFUN([CF_FOPEN_BIN_R],[
2324 AC_CACHE_CHECK(if fopen accepts explicit binary mode,cf_cv_fopen_bin_r,[
2325         AC_TRY_RUN([
2326 #include <stdio.h>
2327 int main(void) {
2328         FILE *fp = fopen("conftest.tmp", "wb");
2329         int rc = 0;
2330         if (fp != 0) {
2331                 int p, q;
2332                 for (p = 0; p < 256; ++p) {
2333                         fputc(p, fp);
2334                 }
2335                 fclose(fp);
2336                 fp = fopen("conftest.tmp", "rb");
2337                 if (fp != 0) {
2338                         for (p = 0; p < 256; ++p) {
2339                                 q = fgetc(fp);
2340                                 if (q != p) {
2341                                         rc = 1;
2342                                         break;
2343                                 }
2344                         }
2345                 } else {
2346                         rc = 1;
2347                 }
2348         } else {
2349                 rc = 1;
2350         }
2351         ${cf_cv_main_return:-return} (rc);
2352 }
2353 ],
2354                 [cf_cv_fopen_bin_r=yes],
2355                 [cf_cv_fopen_bin_r=no],
2356                 [cf_cv_fopen_bin_r=unknown])
2357 ])
2358 test "x$cf_cv_fopen_bin_r" != xno && AC_DEFINE(USE_FOPEN_BIN_R,1,[Define to 1 if fopen accepts explicit binary mode])
2359 ])dnl
2360 dnl ---------------------------------------------------------------------------
2361 dnl CF_FORGET_TOOL version: 1 updated: 2013/04/06 18:03:09
2362 dnl --------------
2363 dnl Forget that we saw the given tool.
2364 AC_DEFUN([CF_FORGET_TOOL],[
2365 unset ac_cv_prog_ac_ct_$1
2366 unset ac_ct_$1
2367 unset $1
2368 ])dnl
2369 dnl ---------------------------------------------------------------------------
2370 dnl CF_FUNC_DLSYM version: 4 updated: 2015/09/12 14:46:44
2371 dnl -------------
2372 dnl Test for dlsym() and related functions, as well as libdl.
2373 dnl
2374 dnl Sets
2375 dnl     $cf_have_dlsym
2376 dnl     $cf_have_libdl
2377 AC_DEFUN([CF_FUNC_DLSYM],[
2378 cf_have_dlsym=no
2379 AC_CHECK_FUNC(dlsym,cf_have_dlsym=yes,[
2380
2381 cf_have_libdl=no
2382 AC_CHECK_LIB(dl,dlsym,[
2383         cf_have_dlsym=yes
2384         cf_have_libdl=yes])])
2385
2386 if test "$cf_have_dlsym" = yes ; then
2387         test "$cf_have_libdl" = yes && { CF_ADD_LIB(dl) }
2388
2389         AC_MSG_CHECKING(whether able to link to dl*() functions)
2390         AC_TRY_LINK([#include <dlfcn.h>],[
2391                 void *obj;
2392                 if ((obj = dlopen("filename", 0)) != 0) {
2393                         if (dlsym(obj, "symbolname") == 0) {
2394                         dlclose(obj);
2395                         }
2396                 }],[
2397                 AC_DEFINE(HAVE_LIBDL,1,[Define to 1 if we have dl library])],[
2398                 AC_MSG_ERROR(Cannot link test program for libdl)])
2399         AC_MSG_RESULT(ok)
2400 else
2401         AC_MSG_ERROR(Cannot find dlsym function)
2402 fi
2403 ])
2404 dnl ---------------------------------------------------------------------------
2405 dnl CF_FUNC_MEMMOVE version: 9 updated: 2017/01/21 11:06:25
2406 dnl ---------------
2407 dnl Check for memmove, or a bcopy that can handle overlapping copy.  If neither
2408 dnl is found, add our own version of memmove to the list of objects.
2409 AC_DEFUN([CF_FUNC_MEMMOVE],
2410 [
2411 AC_CHECK_FUNC(memmove,,[
2412 AC_CHECK_FUNC(bcopy,[
2413         AC_CACHE_CHECK(if bcopy does overlapping moves,cf_cv_good_bcopy,[
2414                 AC_TRY_RUN([
2415 int main(void) {
2416         static char data[] = "abcdefghijklmnopqrstuwwxyz";
2417         char temp[40];
2418         bcopy(data, temp, sizeof(data));
2419         bcopy(temp+10, temp, 15);
2420         bcopy(temp+5, temp+15, 10);
2421         ${cf_cv_main_return:-return} (strcmp(temp, "klmnopqrstuwwxypqrstuwwxyz"));
2422 }
2423                 ],
2424                 [cf_cv_good_bcopy=yes],
2425                 [cf_cv_good_bcopy=no],
2426                 [cf_cv_good_bcopy=unknown])
2427                 ])
2428         ],[cf_cv_good_bcopy=no])
2429         if test "$cf_cv_good_bcopy" = yes ; then
2430                 AC_DEFINE(USE_OK_BCOPY,1,[Define to 1 to use bcopy when memmove is unavailable])
2431         else
2432                 AC_DEFINE(USE_MY_MEMMOVE,1,[Define to 1 to use replacement function when memmove is unavailable])
2433         fi
2434 ])])dnl
2435 dnl ---------------------------------------------------------------------------
2436 dnl CF_FUNC_NANOSLEEP version: 5 updated: 2017/01/21 11:06:25
2437 dnl -----------------
2438 dnl Check for existence of workable nanosleep() function.  Some systems, e.g.,
2439 dnl AIX 4.x, provide a non-working version.
2440 AC_DEFUN([CF_FUNC_NANOSLEEP],[
2441 AC_CACHE_CHECK(if nanosleep really works,cf_cv_func_nanosleep,[
2442 AC_TRY_RUN([
2443 #include <stdio.h>
2444 #include <errno.h>
2445 #include <time.h>
2446
2447 #ifdef HAVE_SYS_TIME_H
2448 #include <sys/time.h>
2449 #endif
2450
2451 int main(void) {
2452         struct timespec ts1, ts2;
2453         int code;
2454         ts1.tv_sec  = 0;
2455         ts1.tv_nsec = 750000000;
2456         ts2.tv_sec  = 0;
2457         ts2.tv_nsec = 0;
2458         errno = 0;
2459         code = nanosleep(&ts1, &ts2); /* on failure errno is ENOSYS. */
2460         ${cf_cv_main_return:-return}(code != 0);
2461 }
2462 ],
2463         [cf_cv_func_nanosleep=yes],
2464         [cf_cv_func_nanosleep=no],
2465         [cf_cv_func_nanosleep=unknown])])
2466
2467 test "$cf_cv_func_nanosleep" = "yes" && AC_DEFINE(HAVE_NANOSLEEP,1,[Define to 1 if we have nanosleep()])
2468 ])
2469 dnl ---------------------------------------------------------------------------
2470 dnl CF_FUNC_OPENPTY version: 5 updated: 2015/09/12 14:46:50
2471 dnl ---------------
2472 dnl Check for openpty() function, along with <pty.h> header.  It may need the
2473 dnl "util" library as well.
2474 AC_DEFUN([CF_FUNC_OPENPTY],
2475 [
2476 AC_CHECK_LIB(util,openpty,cf_cv_lib_util=yes,cf_cv_lib_util=no)
2477 AC_CACHE_CHECK(for openpty header,cf_cv_func_openpty,[
2478         cf_save_LIBS="$LIBS"
2479         test $cf_cv_lib_util = yes && { CF_ADD_LIB(util) }
2480         for cf_header in pty.h libutil.h util.h
2481         do
2482         AC_TRY_LINK([
2483 #include <$cf_header>
2484 ],[
2485         int x = openpty((int *)0, (int *)0, (char *)0,
2486                                    (struct termios *)0, (struct winsize *)0);
2487 ],[
2488                 cf_cv_func_openpty=$cf_header
2489                 break
2490 ],[
2491                 cf_cv_func_openpty=no
2492 ])
2493         done
2494         LIBS="$cf_save_LIBS"
2495 ])
2496 ])dnl
2497 dnl ---------------------------------------------------------------------------
2498 dnl CF_FUNC_POLL version: 9 updated: 2015/10/10 13:27:32
2499 dnl ------------
2500 dnl See if the poll function really works.  Some platforms have poll(), but
2501 dnl it does not work for terminals or files.
2502 AC_DEFUN([CF_FUNC_POLL],[
2503 tty 2>&1 >/dev/null || { AC_CHECK_FUNCS(posix_openpt) }
2504 AC_CACHE_CHECK(if poll really works,cf_cv_working_poll,[
2505 AC_TRY_RUN([
2506 #include <stdlib.h>
2507 #include <stdio.h>
2508 #include <unistd.h>
2509 #include <fcntl.h>
2510 #ifdef HAVE_POLL_H
2511 #include <poll.h>
2512 #else
2513 #include <sys/poll.h>
2514 #endif
2515 int main(void) {
2516         struct pollfd myfds;
2517         int ret;
2518
2519         /* check for Darwin bug with respect to "devices" */
2520         myfds.fd = open("/dev/null", 1);        /* O_WRONLY */
2521         if (myfds.fd < 0)
2522                 myfds.fd = 0;
2523         myfds.events = POLLIN;
2524         myfds.revents = 0;
2525
2526         ret = poll(&myfds, 1, 100);
2527
2528         if (ret < 0 || (myfds.revents & POLLNVAL)) {
2529                 ret = -1;
2530         } else {
2531                 int fd = 0;
2532                 if (!isatty(fd)) {
2533                         fd = open("/dev/tty", 2);       /* O_RDWR */
2534                 }
2535 #ifdef HAVE_POSIX_OPENPT
2536                 if (fd < 0) {
2537                         fd = posix_openpt(O_RDWR);
2538                 }
2539 #endif
2540
2541                 if (fd >= 0) {
2542                         /* also check with standard input */
2543                         myfds.fd = fd;
2544                         myfds.events = POLLIN;
2545                         myfds.revents = 0;
2546                         ret = poll(&myfds, 1, 100);
2547                 } else {
2548                         ret = -1;
2549                 }
2550         }
2551         ${cf_cv_main_return:-return}(ret < 0);
2552 }],
2553         [cf_cv_working_poll=yes],
2554         [cf_cv_working_poll=no],
2555         [cf_cv_working_poll=unknown])])
2556 test "$cf_cv_working_poll" = "yes" && AC_DEFINE(HAVE_WORKING_POLL,1,[Define to 1 if the poll function seems to work])
2557 ])dnl
2558 dnl ---------------------------------------------------------------------------
2559 dnl CF_FUNC_TERMIOS version: 3 updated: 2012/10/06 17:56:13
2560 dnl ---------------
2561 dnl Some old/broken variations define tcgetattr() only as a macro in
2562 dnl termio(s).h
2563 AC_DEFUN([CF_FUNC_TERMIOS],[
2564 AC_REQUIRE([CF_STRUCT_TERMIOS])
2565 AC_CACHE_CHECK(for tcgetattr, cf_cv_have_tcgetattr,[
2566 AC_TRY_LINK([
2567 #include <sys/types.h>
2568 #ifdef HAVE_UNISTD_H
2569 #include <unistd.h>
2570 #endif
2571 #ifdef HAVE_TERMIOS_H
2572 #include <termios.h>
2573 #define TTY struct termios
2574 #else
2575 #ifdef HAVE_TERMIO_H
2576 #include <termio.h>
2577 #define TTY struct termio
2578 #endif
2579 #endif
2580 ],[
2581 TTY foo;
2582 tcgetattr(1, &foo);],
2583 [cf_cv_have_tcgetattr=yes],
2584 [cf_cv_have_tcgetattr=no])])
2585 test "$cf_cv_have_tcgetattr" = yes && AC_DEFINE(HAVE_TCGETATTR,1,[Define to 1 if we have tcgetattr])
2586 ])dnl
2587 dnl ---------------------------------------------------------------------------
2588 dnl CF_FUNC_VSSCANF version: 6 updated: 2015/04/18 08:56:57
2589 dnl ---------------
2590 dnl Check for vsscanf() function, which is in c9x but generally not in earlier
2591 dnl versions of C.  It is in the GNU C library, and can often be simulated by
2592 dnl other functions.
2593 AC_DEFUN([CF_FUNC_VSSCANF],
2594 [
2595 AC_CACHE_CHECK(for vsscanf function or workaround,cf_cv_func_vsscanf,[
2596 AC_TRY_LINK([
2597 #include <stdarg.h>
2598 #include <stdio.h>],[
2599         va_list ap;
2600         vsscanf("from", "%d", ap)],[cf_cv_func_vsscanf=vsscanf],[
2601 AC_TRY_LINK([
2602 #include <stdarg.h>
2603 #include <stdio.h>],[
2604         FILE strbuf;
2605         char *str = "from";
2606
2607         strbuf._flag = _IOREAD;
2608         strbuf._ptr = strbuf._base = (unsigned char *) str;
2609         strbuf._cnt = strlen(str);
2610         strbuf._file = _NFILE;
2611         return (vfscanf(&strbuf, "%d", ap))],[cf_cv_func_vsscanf=vfscanf],[
2612 AC_TRY_LINK([
2613 #include <stdarg.h>
2614 #include <stdio.h>],[
2615         FILE strbuf;
2616         char *str = "from";
2617
2618         strbuf._flag = _IOREAD;
2619         strbuf._ptr = strbuf._base = (unsigned char *) str;
2620         strbuf._cnt = strlen(str);
2621         strbuf._file = _NFILE;
2622         return (_doscan(&strbuf, "%d", ap))],[cf_cv_func_vsscanf=_doscan],[
2623 cf_cv_func_vsscanf=no])])])])
2624
2625 case $cf_cv_func_vsscanf in
2626 (vsscanf) AC_DEFINE(HAVE_VSSCANF,1,[Define to 1 if we have vsscanf]);;
2627 (vfscanf) AC_DEFINE(HAVE_VFSCANF,1,[Define to 1 if we have vfscanf]);;
2628 (_doscan) AC_DEFINE(HAVE__DOSCAN,1,[Define to 1 if we have _doscan]);;
2629 esac
2630
2631 ])dnl
2632 dnl ---------------------------------------------------------------------------
2633 dnl CF_GCC_ATTRIBUTES version: 19 updated: 2020/08/29 09:05:21
2634 dnl -----------------
2635 dnl Test for availability of useful gcc __attribute__ directives to quiet
2636 dnl compiler warnings.  Though useful, not all are supported -- and contrary
2637 dnl to documentation, unrecognized directives cause older compilers to barf.
2638 AC_DEFUN([CF_GCC_ATTRIBUTES],
2639 [
2640 if ( test "$GCC" = yes || test "$GXX" = yes )
2641 then
2642 cat > conftest.i <<EOF
2643 #ifndef GCC_PRINTF
2644 #define GCC_PRINTF 0
2645 #endif
2646 #ifndef GCC_SCANF
2647 #define GCC_SCANF 0
2648 #endif
2649 #ifndef GCC_NORETURN
2650 #define GCC_NORETURN /* nothing */
2651 #endif
2652 #ifndef GCC_UNUSED
2653 #define GCC_UNUSED /* nothing */
2654 #endif
2655 EOF
2656 if test "$GCC" = yes
2657 then
2658         AC_CHECKING([for $CC __attribute__ directives])
2659 cat > conftest.$ac_ext <<EOF
2660 #line __oline__ "${as_me:-configure}"
2661 #include "confdefs.h"
2662 #include "conftest.h"
2663 #include "conftest.i"
2664 #if     GCC_PRINTF
2665 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
2666 #else
2667 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
2668 #endif
2669 #if     GCC_SCANF
2670 #define GCC_SCANFLIKE(fmt,var)  __attribute__((format(scanf,fmt,var)))
2671 #else
2672 #define GCC_SCANFLIKE(fmt,var)  /*nothing*/
2673 #endif
2674 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
2675 extern void oops(char *,...) GCC_PRINTFLIKE(1,2) GCC_NORETURN;
2676 extern void foo(void) GCC_NORETURN;
2677 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { (void)argc; (void)argv; return 0; }
2678 EOF
2679         cf_printf_attribute=no
2680         cf_scanf_attribute=no
2681         for cf_attribute in scanf printf unused noreturn
2682         do
2683                 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
2684                 cf_directive="__attribute__(($cf_attribute))"
2685                 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
2686
2687                 case $cf_attribute in
2688                 (printf)
2689                         cf_printf_attribute=yes
2690                         cat >conftest.h <<EOF
2691 #define GCC_$cf_ATTRIBUTE 1
2692 EOF
2693                         ;;
2694                 (scanf)
2695                         cf_scanf_attribute=yes
2696                         cat >conftest.h <<EOF
2697 #define GCC_$cf_ATTRIBUTE 1
2698 EOF
2699                         ;;
2700                 (*)
2701                         cat >conftest.h <<EOF
2702 #define GCC_$cf_ATTRIBUTE $cf_directive
2703 EOF
2704                         ;;
2705                 esac
2706
2707                 if AC_TRY_EVAL(ac_compile); then
2708                         test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
2709                         cat conftest.h >>confdefs.h
2710                         case $cf_attribute in
2711                         (noreturn)
2712                                 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
2713                                 ;;
2714                         (printf)
2715                                 cf_value='/* nothing */'
2716                                 if test "$cf_printf_attribute" != no ; then
2717                                         cf_value='__attribute__((format(printf,fmt,var)))'
2718                                         AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
2719                                 fi
2720                                 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
2721                                 ;;
2722                         (scanf)
2723                                 cf_value='/* nothing */'
2724                                 if test "$cf_scanf_attribute" != no ; then
2725                                         cf_value='__attribute__((format(scanf,fmt,var)))'
2726                                         AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
2727                                 fi
2728                                 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
2729                                 ;;
2730                         (unused)
2731                                 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
2732                                 ;;
2733                         esac
2734                 fi
2735         done
2736 else
2737         fgrep define conftest.i >>confdefs.h
2738 fi
2739 rm -rf conftest*
2740 fi
2741 ])dnl
2742 dnl ---------------------------------------------------------------------------
2743 dnl CF_GCC_VERSION version: 8 updated: 2019/09/07 13:38:36
2744 dnl --------------
2745 dnl Find version of gcc, and (because icc/clang pretend to be gcc without being
2746 dnl compatible), attempt to determine if icc/clang is actually used.
2747 AC_DEFUN([CF_GCC_VERSION],[
2748 AC_REQUIRE([AC_PROG_CC])
2749 GCC_VERSION=none
2750 if test "$GCC" = yes ; then
2751         AC_MSG_CHECKING(version of $CC)
2752         GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
2753         test -z "$GCC_VERSION" && GCC_VERSION=unknown
2754         AC_MSG_RESULT($GCC_VERSION)
2755 fi
2756 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
2757 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
2758 ])dnl
2759 dnl ---------------------------------------------------------------------------
2760 dnl CF_GCC_WARNINGS version: 38 updated: 2020/08/28 15:08:28
2761 dnl ---------------
2762 dnl Check if the compiler supports useful warning options.  There's a few that
2763 dnl we don't use, simply because they're too noisy:
2764 dnl
2765 dnl     -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
2766 dnl     -Winline (usually not worthwhile)
2767 dnl     -Wredundant-decls (system headers make this too noisy)
2768 dnl     -Wtraditional (combines too many unrelated messages, only a few useful)
2769 dnl     -Wwrite-strings (too noisy, but should review occasionally).  This
2770 dnl             is enabled for ncurses using "--enable-const".
2771 dnl     -pedantic
2772 dnl
2773 dnl Parameter:
2774 dnl     $1 is an optional list of gcc warning flags that a particular
2775 dnl             application might want to use, e.g., "no-unused" for
2776 dnl             -Wno-unused
2777 dnl Special:
2778 dnl     If $with_ext_const is "yes", add a check for -Wwrite-strings
2779 dnl
2780 AC_DEFUN([CF_GCC_WARNINGS],
2781 [
2782 AC_REQUIRE([CF_GCC_VERSION])
2783 if test "x$have_x" = xyes; then CF_CONST_X_STRING fi
2784 cat > conftest.$ac_ext <<EOF
2785 #line __oline__ "${as_me:-configure}"
2786 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
2787 EOF
2788 if test "$INTEL_COMPILER" = yes
2789 then
2790 # The "-wdXXX" options suppress warnings:
2791 # remark #1419: external declaration in primary source file
2792 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
2793 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
2794 # remark #193: zero used for undefined preprocessing identifier
2795 # remark #593: variable "curs_sb_left_arrow" was set but never used
2796 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
2797 # remark #869: parameter "tw" was never referenced
2798 # remark #981: operands are evaluated in unspecified order
2799 # warning #279: controlling expression is constant
2800
2801         AC_CHECKING([for $CC warning options])
2802         cf_save_CFLAGS="$CFLAGS"
2803         EXTRA_CFLAGS="$EXTRA_CFLAGS -Wall"
2804         for cf_opt in \
2805                 wd1419 \
2806                 wd1683 \
2807                 wd1684 \
2808                 wd193 \
2809                 wd593 \
2810                 wd279 \
2811                 wd810 \
2812                 wd869 \
2813                 wd981
2814         do
2815                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
2816                 if AC_TRY_EVAL(ac_compile); then
2817                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
2818                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
2819                 fi
2820         done
2821         CFLAGS="$cf_save_CFLAGS"
2822 elif test "$GCC" = yes && test "$GCC_VERSION" != "unknown"
2823 then
2824         AC_CHECKING([for $CC warning options])
2825         cf_save_CFLAGS="$CFLAGS"
2826         cf_warn_CONST=""
2827         test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
2828         cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
2829         test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
2830         for cf_opt in W Wall \
2831                 Wbad-function-cast \
2832                 Wcast-align \
2833                 Wcast-qual \
2834                 Wdeclaration-after-statement \
2835                 Wextra \
2836                 Winline \
2837                 Wmissing-declarations \
2838                 Wmissing-prototypes \
2839                 Wnested-externs \
2840                 Wpointer-arith \
2841                 Wshadow \
2842                 Wstrict-prototypes \
2843                 Wundef Wno-inline $cf_gcc_warnings $cf_warn_CONST $1
2844         do
2845                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
2846                 if AC_TRY_EVAL(ac_compile); then
2847                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
2848                         case $cf_opt in
2849                         (Winline)
2850                                 case $GCC_VERSION in
2851                                 ([[34]].*)
2852                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
2853                                         continue;;
2854                                 esac
2855                                 ;;
2856                         (Wpointer-arith)
2857                                 case $GCC_VERSION in
2858                                 ([[12]].*)
2859                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
2860                                         continue;;
2861                                 esac
2862                                 ;;
2863                         esac
2864                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
2865                 fi
2866         done
2867         CFLAGS="$cf_save_CFLAGS"
2868 fi
2869 rm -rf conftest*
2870
2871 AC_SUBST(EXTRA_CFLAGS)
2872 ])dnl
2873 dnl ---------------------------------------------------------------------------
2874 dnl CF_GETOPT_HEADER version: 6 updated: 2014/07/22 14:45:54
2875 dnl ----------------
2876 dnl Check for getopt's variables which are commonly defined in stdlib.h,
2877 dnl unistd.h or (nonstandard) in getopt.h
2878 AC_DEFUN([CF_GETOPT_HEADER],
2879 [
2880 AC_HAVE_HEADERS(unistd.h getopt.h)
2881 AC_CACHE_CHECK(for header declaring getopt variables,cf_cv_getopt_header,[
2882 cf_cv_getopt_header=none
2883 for cf_header in stdio.h stdlib.h unistd.h getopt.h
2884 do
2885 AC_TRY_COMPILE([
2886 #include <$cf_header>],
2887 [int x = optind; char *y = optarg],
2888 [cf_cv_getopt_header=$cf_header
2889  break])
2890 done
2891 ])
2892 if test $cf_cv_getopt_header != none ; then
2893         AC_DEFINE(HAVE_GETOPT_HEADER,1,[Define to 1 if getopt variables are declared in header])
2894 fi
2895 if test $cf_cv_getopt_header = getopt.h ; then
2896         AC_DEFINE(NEED_GETOPT_H,1,[Define to 1 if we must include getopt.h])
2897 fi
2898 ])dnl
2899 dnl ---------------------------------------------------------------------------
2900 dnl CF_GNATPREP_OPT_T version: 1 updated: 2014/08/02 18:37:25
2901 dnl -----------------
2902 AC_DEFUN([CF_GNATPREP_OPT_T],[
2903 AC_CACHE_CHECK(if GNATPREP supports -T option,cf_cv_gnatprep_opt_t,[
2904 cf_cv_gnatprep_opt_t=no
2905 gnatprep -T 2>/dev/null >/dev/null && cf_cv_gnatprep_opt_t=yes
2906 ])
2907 test "$cf_cv_gnatprep_opt_t" = yes && GNATPREP_OPTS="-T $GNATPREP_OPTS"
2908 AC_SUBST(GNATPREP_OPTS)
2909 ])dnl
2910 dnl ---------------------------------------------------------------------------
2911 dnl CF_GNAT_GENERICS version: 6 updated: 2020/07/04 19:30:27
2912 dnl ----------------
2913 AC_DEFUN([CF_GNAT_GENERICS],
2914 [
2915 AC_REQUIRE([CF_GNAT_VERSION])
2916
2917 AC_MSG_CHECKING(if GNAT supports generics)
2918 case $cf_cv_gnat_version in
2919 (3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|[[1-9]][[0-9]].[[0-9]]*|20[[0-9]][[0-9]])
2920         cf_gnat_generics=yes
2921         ;;
2922 (*)
2923         cf_gnat_generics=no
2924         ;;
2925 esac
2926 AC_MSG_RESULT($cf_gnat_generics)
2927
2928 if test "$cf_gnat_generics" = yes
2929 then
2930         cf_compile_generics=generics
2931         cf_generic_objects="\${GENOBJS}"
2932 else
2933         cf_compile_generics=
2934         cf_generic_objects=
2935 fi
2936
2937 AC_SUBST(cf_compile_generics)
2938 AC_SUBST(cf_generic_objects)
2939 ])dnl
2940 dnl ---------------------------------------------------------------------------
2941 dnl CF_GNAT_PROJECTS version: 10 updated: 2019/12/31 08:53:54
2942 dnl ----------------
2943 dnl GNAT projects are configured with ".gpr" project files.
2944 dnl GNAT libraries are a further development, using the project feature.
2945 AC_DEFUN([CF_GNAT_PROJECTS],
2946 [
2947 AC_REQUIRE([CF_GNAT_VERSION])
2948 AC_REQUIRE([CF_DISABLE_GNAT_PROJECTS])
2949
2950 cf_gnat_libraries=no
2951 cf_gnat_projects=no
2952
2953 if test "$enable_gnat_projects" != no ; then
2954 AC_MSG_CHECKING(if GNAT supports project files)
2955 case $cf_cv_gnat_version in
2956 (3.[[0-9]]*)
2957         ;;
2958 (*)
2959         case $cf_cv_system_name in
2960         (cygwin*|msys*)
2961                 ;;
2962         (*)
2963                 rm -rf conftest* *~conftest*
2964                 if mkdir conftest.src conftest.bin conftest.lib
2965                 then
2966                         cd conftest.src
2967                         rm -rf conftest* *~conftest*
2968                         cat >>library.gpr <<CF_EOF
2969 project Library is
2970   Kind := External ("LIB_KIND");
2971   for Library_Name use "ConfTest";
2972   for Object_Dir use ".";
2973   for Library_ALI_Dir use External("LIBRARY_DIR");
2974   for Library_Version use External ("SONAME");
2975   for Library_Kind use Kind;
2976   for Library_Dir use External("BUILD_DIR");
2977   Source_Dir := External ("SOURCE_DIR");
2978   for Source_Dirs use (Source_Dir);
2979 end Library;
2980 CF_EOF
2981                         cat >>confpackage.ads <<CF_EOF
2982 package ConfPackage is
2983    procedure conftest;
2984 end ConfPackage;
2985 CF_EOF
2986                         cat >>confpackage.adb <<CF_EOF
2987 with Text_IO;
2988 package body ConfPackage is
2989    procedure conftest is
2990    begin
2991       Text_IO.Put ("Hello World");
2992       Text_IO.New_Line;
2993    end conftest;
2994 end ConfPackage;
2995 CF_EOF
2996                         if ( $cf_ada_make $ADAFLAGS \
2997                                         -Plibrary.gpr \
2998                                         -XBUILD_DIR=`cd ../conftest.bin;pwd` \
2999                                         -XLIBRARY_DIR=`cd ../conftest.lib;pwd` \
3000                                         -XSOURCE_DIR=`pwd` \
3001                                         -XSONAME=libConfTest.so.1 \
3002                                         -XLIB_KIND=static 1>&AC_FD_CC 2>&1 ) ; then
3003                                 cf_gnat_projects=yes
3004                         fi
3005                         cd ..
3006                 fi
3007                 if test -f conftest.lib/confpackage.ali
3008                 then
3009                         cf_gnat_libraries=yes
3010                 fi
3011                 rm -rf conftest* *~conftest*
3012                 ;;
3013         esac
3014         ;;
3015 esac
3016 AC_MSG_RESULT($cf_gnat_projects)
3017 fi # enable_gnat_projects
3018
3019 if test $cf_gnat_projects = yes
3020 then
3021         AC_MSG_CHECKING(if GNAT supports libraries)
3022         AC_MSG_RESULT($cf_gnat_libraries)
3023 fi
3024
3025 if test "$cf_gnat_projects" = yes
3026 then
3027         USE_OLD_MAKERULES="#"
3028         USE_GNAT_PROJECTS=""
3029 else
3030         USE_OLD_MAKERULES=""
3031         USE_GNAT_PROJECTS="#"
3032 fi
3033
3034 if test "$cf_gnat_libraries" = yes
3035 then
3036         USE_GNAT_LIBRARIES=""
3037 else
3038         USE_GNAT_LIBRARIES="#"
3039 fi
3040
3041 AC_SUBST(USE_OLD_MAKERULES)
3042 AC_SUBST(USE_GNAT_PROJECTS)
3043 AC_SUBST(USE_GNAT_LIBRARIES)
3044 ])dnl
3045 dnl ---------------------------------------------------------------------------
3046 dnl CF_GNAT_SIGINT version: 1 updated: 2011/03/27 20:07:59
3047 dnl --------------
3048 dnl Check if gnat supports SIGINT, and presumably tasking.  For the latter, it
3049 dnl is noted that gnat may compile a tasking unit even for configurations which
3050 dnl fail at runtime.
3051 AC_DEFUN([CF_GNAT_SIGINT],[
3052 AC_CACHE_CHECK(if GNAT supports SIGINT,cf_cv_gnat_sigint,[
3053 CF_GNAT_TRY_LINK([with Ada.Interrupts.Names;
3054
3055 package ConfTest is
3056
3057    pragma Warnings (Off);  --  the next pragma exists since 3.11p
3058    pragma Unreserve_All_Interrupts;
3059    pragma Warnings (On);
3060
3061    protected Process is
3062       procedure Stop;
3063       function Continue return Boolean;
3064       pragma Attach_Handler (Stop, Ada.Interrupts.Names.SIGINT);
3065    private
3066       Done : Boolean := False;
3067    end Process;
3068
3069 end ConfTest;],
3070 [package body ConfTest is
3071    protected body Process is
3072       procedure Stop is
3073       begin
3074          Done := True;
3075       end Stop;
3076       function Continue return Boolean is
3077       begin
3078          return not Done;
3079       end Continue;
3080    end Process;
3081 end ConfTest;],
3082         [cf_cv_gnat_sigint=yes],
3083         [cf_cv_gnat_sigint=no])])
3084
3085 if test $cf_cv_gnat_sigint = yes ; then
3086         USE_GNAT_SIGINT=""
3087 else
3088         USE_GNAT_SIGINT="#"
3089 fi
3090 AC_SUBST(USE_GNAT_SIGINT)
3091 ])dnl
3092 dnl ---------------------------------------------------------------------------
3093 dnl CF_GNAT_TRY_LINK version: 3 updated: 2011/03/19 14:47:45
3094 dnl ----------------
3095 dnl Verify that a test program compiles/links with GNAT.
3096 dnl $cf_ada_make is set to the program that compiles/links
3097 dnl $ADAFLAGS may be set to the GNAT flags.
3098 dnl
3099 dnl $1 is the text of the spec
3100 dnl $2 is the text of the body
3101 dnl $3 is the shell command to execute if successful
3102 dnl $4 is the shell command to execute if not successful
3103 AC_DEFUN([CF_GNAT_TRY_LINK],
3104 [
3105 rm -rf conftest* *~conftest*
3106 cat >>conftest.ads <<CF_EOF
3107 $1
3108 CF_EOF
3109 cat >>conftest.adb <<CF_EOF
3110 $2
3111 CF_EOF
3112 if ( $cf_ada_make $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
3113 ifelse($3,,      :,[      $3])
3114 ifelse($4,,,[else
3115    $4])
3116 fi
3117 rm -rf conftest* *~conftest*
3118 ])dnl
3119 dnl ---------------------------------------------------------------------------
3120 dnl CF_GNAT_TRY_RUN version: 5 updated: 2011/03/19 14:47:45
3121 dnl ---------------
3122 dnl Verify that a test program compiles and runs with GNAT
3123 dnl $cf_ada_make is set to the program that compiles/links
3124 dnl $ADAFLAGS may be set to the GNAT flags.
3125 dnl
3126 dnl $1 is the text of the spec
3127 dnl $2 is the text of the body
3128 dnl $3 is the shell command to execute if successful
3129 dnl $4 is the shell command to execute if not successful
3130 AC_DEFUN([CF_GNAT_TRY_RUN],
3131 [
3132 rm -rf conftest* *~conftest*
3133 cat >>conftest.ads <<CF_EOF
3134 $1
3135 CF_EOF
3136 cat >>conftest.adb <<CF_EOF
3137 $2
3138 CF_EOF
3139 if ( $cf_ada_make $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
3140    if ( ./conftest 1>&AC_FD_CC 2>&1 ) ; then
3141 ifelse($3,,      :,[      $3])
3142 ifelse($4,,,[   else
3143       $4])
3144    fi
3145 ifelse($4,,,[else
3146    $4])
3147 fi
3148 rm -rf conftest* *~conftest*
3149 ])dnl
3150 dnl ---------------------------------------------------------------------------
3151 dnl CF_GNAT_VERSION version: 22 updated: 2019/12/31 08:53:54
3152 dnl ---------------
3153 dnl $1 = cache variable to update
3154 dnl $2 = program name
3155 dnl Verify version of GNAT or related tool
3156 AC_DEFUN([CF_GNAT_VERSION],
3157 [
3158 AC_CACHE_CHECK(for ifelse($2,,gnat,$2) version, cf_cv_gnat_version,[
3159 cf_cv_gnat_version=`ifelse($2,,${cf_ada_make:-gnatmake},$2) --version 2>&1 | \
3160         grep '[[0-9]].[[0-9]][[0-9]]*' |\
3161         sed -e '2,$d' -e 's/[[^0-9 \.]]//g' -e 's/^[[ ]]*//' -e 's/ .*//'`
3162 ])
3163 test -z "$cf_cv_gnat_version" && cf_cv_gnat_version=no
3164 ifelse($1,,,[eval $1=$cf_cv_gnat_version; unset cf_cv_gnat_version])
3165 ])dnl
3166 dnl ---------------------------------------------------------------------------
3167 dnl CF_GNU_SOURCE version: 10 updated: 2018/12/10 20:09:41
3168 dnl -------------
3169 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
3170 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend.  This is a defect
3171 dnl (or misfeature) of glibc2, which breaks portability of many applications,
3172 dnl since it is interwoven with GNU extensions.
3173 dnl
3174 dnl Well, yes we could work around it...
3175 dnl
3176 dnl Parameters:
3177 dnl     $1 is the nominal value for _XOPEN_SOURCE
3178 AC_DEFUN([CF_GNU_SOURCE],
3179 [
3180 cf_gnu_xopen_source=ifelse($1,,500,$1)
3181
3182 AC_CACHE_CHECK(if this is the GNU C library,cf_cv_gnu_library,[
3183 AC_TRY_COMPILE([#include <sys/types.h>],[
3184         #if __GLIBC__ > 0 && __GLIBC_MINOR__ >= 0
3185                 return 0;
3186         #elif __NEWLIB__ > 0 && __NEWLIB_MINOR__ >= 0
3187                 return 0;
3188         #else
3189         #       error not GNU C library
3190         #endif],
3191         [cf_cv_gnu_library=yes],
3192         [cf_cv_gnu_library=no])
3193 ])
3194
3195 if test x$cf_cv_gnu_library = xyes; then
3196
3197         # With glibc 2.19 (13 years after this check was begun), _DEFAULT_SOURCE
3198         # was changed to help a little.  newlib incorporated the change about 4
3199         # years later.
3200         AC_CACHE_CHECK(if _DEFAULT_SOURCE can be used as a basis,cf_cv_gnu_library_219,[
3201                 cf_save="$CPPFLAGS"
3202                 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
3203                 AC_TRY_COMPILE([#include <sys/types.h>],[
3204                         #if (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 19) || (__GLIBC__ > 2)
3205                                 return 0;
3206                         #elif (__NEWLIB__ == 2 && __NEWLIB_MINOR__ >= 4) || (__GLIBC__ > 3)
3207                                 return 0;
3208                         #else
3209                         #       error GNU C library __GLIBC__.__GLIBC_MINOR__ is too old
3210                         #endif],
3211                         [cf_cv_gnu_library_219=yes],
3212                         [cf_cv_gnu_library_219=no])
3213                 CPPFLAGS="$cf_save"
3214         ])
3215
3216         if test "x$cf_cv_gnu_library_219" = xyes; then
3217                 cf_save="$CPPFLAGS"
3218                 AC_CACHE_CHECK(if _XOPEN_SOURCE=$cf_gnu_xopen_source works with _DEFAULT_SOURCE,cf_cv_gnu_dftsrc_219,[
3219                         CF_ADD_CFLAGS(-D_DEFAULT_SOURCE -D_XOPEN_SOURCE=$cf_gnu_xopen_source)
3220                         AC_TRY_COMPILE([
3221                                 #include <limits.h>
3222                                 #include <sys/types.h>
3223                                 ],[
3224                                 #if (_XOPEN_SOURCE >= $cf_gnu_xopen_source) && (MB_LEN_MAX > 1)
3225                                         return 0;
3226                                 #else
3227                                 #       error GNU C library is too old
3228                                 #endif],
3229                                 [cf_cv_gnu_dftsrc_219=yes],
3230                                 [cf_cv_gnu_dftsrc_219=no])
3231                         ])
3232                 test "x$cf_cv_gnu_dftsrc_219" = "xyes" || CPPFLAGS="$cf_save"
3233         else
3234                 cf_cv_gnu_dftsrc_219=maybe
3235         fi
3236
3237         if test "x$cf_cv_gnu_dftsrc_219" != xyes; then
3238
3239                 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
3240                 AC_TRY_COMPILE([#include <sys/types.h>],[
3241                         #ifndef _XOPEN_SOURCE
3242                         #error  expected _XOPEN_SOURCE to be defined
3243                         #endif],
3244                         [cf_cv_gnu_source=no],
3245                         [cf_save="$CPPFLAGS"
3246                          CF_ADD_CFLAGS(-D_GNU_SOURCE)
3247                          AC_TRY_COMPILE([#include <sys/types.h>],[
3248                                 #ifdef _XOPEN_SOURCE
3249                                 #error  expected _XOPEN_SOURCE to be undefined
3250                                 #endif],
3251                                 [cf_cv_gnu_source=no],
3252                                 [cf_cv_gnu_source=yes])
3253                         CPPFLAGS="$cf_save"
3254                         ])
3255                 ])
3256
3257                 if test "$cf_cv_gnu_source" = yes
3258                 then
3259                 AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
3260                         CF_APPEND_TEXT(CPPFLAGS,-D_GNU_SOURCE)
3261                         AC_TRY_COMPILE([#include <sys/types.h>],[
3262                                 #ifdef _DEFAULT_SOURCE
3263                                 #error  expected _DEFAULT_SOURCE to be undefined
3264                                 #endif],
3265                                 [cf_cv_default_source=no],
3266                                 [cf_cv_default_source=yes])
3267                         ])
3268                         if test "$cf_cv_default_source" = yes
3269                         then
3270                                 CF_APPEND_TEXT(CPPFLAGS,-D_DEFAULT_SOURCE)
3271                         fi
3272                 fi
3273         fi
3274
3275 fi
3276 ])dnl
3277 dnl ---------------------------------------------------------------------------
3278 dnl CF_GPP_LIBRARY version: 12 updated: 2015/04/17 21:13:04
3279 dnl --------------
3280 dnl If we're trying to use g++, test if libg++ is installed (a rather common
3281 dnl problem :-).  If we have the compiler but no library, we'll be able to
3282 dnl configure, but won't be able to build the c++ demo program.
3283 AC_DEFUN([CF_GPP_LIBRARY],
3284 [
3285 cf_cxx_library=unknown
3286 case $cf_cv_system_name in
3287 (os2*)
3288         cf_gpp_libname=gpp
3289         ;;
3290 (*)
3291         cf_gpp_libname=g++
3292         ;;
3293 esac
3294 if test "$GXX" = yes; then
3295         AC_MSG_CHECKING([for lib$cf_gpp_libname])
3296         cf_save="$LIBS"
3297         CF_ADD_LIB($cf_gpp_libname)
3298         AC_TRY_LINK([
3299 #include <$cf_gpp_libname/builtin.h>
3300         ],
3301         [two_arg_error_handler_t foo2 = lib_error_handler],
3302         [cf_cxx_library=yes
3303          CF_ADD_LIB($cf_gpp_libname,CXXLIBS)
3304          if test "$cf_gpp_libname" = cpp ; then
3305             AC_DEFINE(HAVE_GPP_BUILTIN_H,1,[Define to 1 if we have gpp builtin.h])
3306          else
3307             AC_DEFINE(HAVE_GXX_BUILTIN_H,1,[Define to 1 if we have g++ builtin.h])
3308          fi],
3309         [AC_TRY_LINK([
3310 #include <builtin.h>
3311         ],
3312         [two_arg_error_handler_t foo2 = lib_error_handler],
3313         [cf_cxx_library=yes
3314          CF_ADD_LIB($cf_gpp_libname,CXXLIBS)
3315          AC_DEFINE(HAVE_BUILTIN_H,1,[Define to 1 if we have builtin.h])],
3316         [cf_cxx_library=no])])
3317         LIBS="$cf_save"
3318         AC_MSG_RESULT($cf_cxx_library)
3319 fi
3320 ])dnl
3321 dnl ---------------------------------------------------------------------------
3322 dnl CF_GXX_VERSION version: 8 updated: 2017/02/11 14:48:57
3323 dnl --------------
3324 dnl Check for version of g++
3325 AC_DEFUN([CF_GXX_VERSION],[
3326 AC_REQUIRE([AC_PROG_CPP])
3327 GXX_VERSION=none
3328 if test "$GXX" = yes; then
3329         AC_MSG_CHECKING(version of ${CXX:-g++})
3330         GXX_VERSION="`${CXX:-g++} --version| sed -e '2,$d' -e 's/^.*(GCC) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
3331         if test -z "$GXX_VERSION"
3332         then
3333                 GXX_VERSION=unknown
3334                 GXX=no
3335         fi
3336         AC_MSG_RESULT($GXX_VERSION)
3337 fi
3338 ])dnl
3339 dnl ---------------------------------------------------------------------------
3340 dnl CF_GXX_WARNINGS version: 9 updated: 2015/04/17 21:13:04
3341 dnl ---------------
3342 dnl Check if the compiler supports useful warning options.
3343 dnl
3344 dnl Most of gcc's options apply to g++, except:
3345 dnl     -Wbad-function-cast
3346 dnl     -Wmissing-declarations
3347 dnl     -Wnested-externs
3348 dnl
3349 dnl Omit a few (for now):
3350 dnl     -Winline
3351 dnl
3352 dnl Parameter:
3353 dnl     $1 is an optional list of g++ warning flags that a particular
3354 dnl             application might want to use, e.g., "no-unused" for
3355 dnl             -Wno-unused
3356 dnl Special:
3357 dnl     If $with_ext_const is "yes", add a check for -Wwrite-strings
3358 dnl
3359 AC_DEFUN([CF_GXX_WARNINGS],
3360 [
3361
3362 CF_INTEL_COMPILER(GXX,INTEL_CPLUSPLUS,CXXFLAGS)
3363 CF_CLANG_COMPILER(GXX,CLANG_CPLUSPLUS,CXXFLAGS)
3364
3365 AC_REQUIRE([CF_GXX_VERSION])
3366
3367 AC_LANG_SAVE
3368 AC_LANG_CPLUSPLUS
3369
3370 cat > conftest.$ac_ext <<EOF
3371 #line __oline__ "configure"
3372 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
3373 EOF
3374
3375 if test "$INTEL_CPLUSPLUS" = yes
3376 then
3377 # The "-wdXXX" options suppress warnings:
3378 # remark #1419: external declaration in primary source file
3379 # remark #1682: implicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
3380 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
3381 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
3382 # remark #193: zero used for undefined preprocessing identifier
3383 # remark #593: variable "curs_sb_left_arrow" was set but never used
3384 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
3385 # remark #869: parameter "tw" was never referenced
3386 # remark #981: operands are evaluated in unspecified order
3387 # warning #269: invalid format string conversion
3388
3389         AC_CHECKING([for $CC warning options])
3390         cf_save_CXXFLAGS="$CXXFLAGS"
3391         EXTRA_CXXFLAGS="-Wall"
3392         for cf_opt in \
3393                 wd1419 \
3394                 wd1682 \
3395                 wd1683 \
3396                 wd1684 \
3397                 wd193 \
3398                 wd279 \
3399                 wd593 \
3400                 wd810 \
3401                 wd869 \
3402                 wd981
3403         do
3404                 CXXFLAGS="$cf_save_CXXFLAGS $EXTRA_CXXFLAGS -$cf_opt"
3405                 if AC_TRY_EVAL(ac_compile); then
3406                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
3407                         EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS -$cf_opt"
3408                 fi
3409         done
3410         CXXFLAGS="$cf_save_CXXFLAGS"
3411
3412 elif test "$GXX" = yes
3413 then
3414         AC_CHECKING([for $CXX warning options])
3415         cf_save_CXXFLAGS="$CXXFLAGS"
3416         EXTRA_CXXFLAGS="-W -Wall"
3417         cf_gxx_extra_warnings=""
3418         test "$with_ext_const" = yes && cf_gxx_extra_warnings="Wwrite-strings"
3419         case "$GCC_VERSION" in
3420         ([[1-2]].*)
3421                 ;;
3422         (*)
3423                 cf_gxx_extra_warnings="$cf_gxx_extra_warnings Weffc++"
3424                 ;;
3425         esac
3426         for cf_opt in \
3427                 Wabi \
3428                 fabi-version=0 \
3429                 Wextra \
3430                 Wignored-qualifiers \
3431                 Wlogical-op \
3432                 Woverloaded-virtual \
3433                 Wsign-promo \
3434                 Wsynth \
3435                 Wold-style-cast \
3436                 Wcast-align \
3437                 Wcast-qual \
3438                 Wpointer-arith \
3439                 Wshadow \
3440                 Wundef $cf_gxx_extra_warnings $1
3441         do
3442                 CXXFLAGS="$cf_save_CXXFLAGS $EXTRA_CXXFLAGS -Werror -$cf_opt"
3443                 if AC_TRY_EVAL(ac_compile); then
3444                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
3445                         EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS -$cf_opt"
3446                 else
3447                         test -n "$verbose" && AC_MSG_RESULT(... no -$cf_opt)
3448                 fi
3449         done
3450         CXXFLAGS="$cf_save_CXXFLAGS"
3451 fi
3452
3453 rm -rf conftest*
3454 AC_LANG_RESTORE
3455 AC_SUBST(EXTRA_CXXFLAGS)
3456 ])dnl
3457 dnl ---------------------------------------------------------------------------
3458 dnl CF_HASHED_DB version: 7 updated: 2015/04/18 08:56:57
3459 dnl ------------
3460 dnl Look for an instance of the Berkeley hashed database.
3461 dnl
3462 dnl $1 = optional parameter, to specify install-prefix for the database.
3463 AC_DEFUN([CF_HASHED_DB],
3464 [
3465 ifelse([$1],,,[
3466 case $1 in
3467 (yes|*able*)
3468         ;;
3469 (*)
3470         if test -d "$1" ; then
3471                 CF_ADD_INCDIR($1/include)
3472                 CF_ADD_LIBDIR($1/lib)
3473         else
3474                 case "$1" in
3475                 (./*|../*|/*)
3476                         AC_MSG_WARN(no such directory $1)
3477                         ;;
3478                 (*)
3479                         CF_FIND_SUB_INCDIR($1)
3480                         CF_FIND_SUB_LIBDIR($1)
3481                         ;;
3482                 esac
3483         fi
3484 esac
3485 ])
3486 AC_CHECK_HEADER(db.h,[
3487 CF_HASHED_DB_VERSION
3488 if test "$cf_cv_hashed_db_version" = unknown ; then
3489         AC_MSG_ERROR(Cannot determine version of db)
3490 else
3491         CF_HASHED_DB_LIBS
3492         if test "$cf_cv_hashed_db_libs" = unknown ; then
3493                 AC_MSG_ERROR(Cannot determine library for db)
3494         elif test "$cf_cv_hashed_db_libs" != default ; then
3495                 CF_ADD_LIB($cf_cv_hashed_db_libs)
3496         fi
3497 fi
3498 ],[
3499         AC_MSG_ERROR(Cannot find db.h)
3500 ])
3501 ])dnl
3502 dnl ---------------------------------------------------------------------------
3503 dnl CF_HASHED_DB_LIBS version: 9 updated: 2010/05/29 16:31:02
3504 dnl -----------------
3505 dnl Given that we have the header and version for hashed database, find the
3506 dnl library information.
3507 AC_DEFUN([CF_HASHED_DB_LIBS],
3508 [
3509 AC_CACHE_CHECK(for db libraries, cf_cv_hashed_db_libs,[
3510 cf_cv_hashed_db_libs=unknown
3511 for cf_db_libs in "" db$cf_cv_hashed_db_version db-$cf_cv_hashed_db_version db ''
3512 do
3513         cf_save_libs="$LIBS"
3514         if test -n "$cf_db_libs"; then
3515                 CF_ADD_LIB($cf_db_libs)
3516         fi
3517         CF_MSG_LOG(checking for library "$cf_db_libs")
3518         AC_TRY_LINK([
3519 $ac_includes_default
3520 #include <db.h>
3521 ],[
3522         char *path = "/tmp/foo";
3523 #ifdef DB_VERSION_MAJOR
3524 #if DB_VERSION_MAJOR >= 4
3525         DB *result = 0;
3526         db_create(&result, NULL, 0);
3527         result->open(result,
3528                 NULL,
3529                 path,
3530                 path,
3531                 DB_HASH,
3532                 DB_CREATE,
3533                 0644);
3534 #elif DB_VERSION_MAJOR >= 3
3535         DB *result = 0;
3536         db_create(&result, NULL, 0);
3537         result->open(result,
3538                 path,
3539                 path,
3540                 DB_HASH,
3541                 DB_CREATE,
3542                 0644);
3543 #elif DB_VERSION_MAJOR >= 2
3544         DB *result = 0;
3545         db_open(path,
3546                 DB_HASH,
3547                 DB_CREATE,
3548                 0644,
3549                 (DB_ENV *) 0,
3550                 (DB_INFO *) 0,
3551                 &result);
3552 #endif /* DB_VERSION_MAJOR */
3553 #else
3554         DB *result = dbopen(path,
3555                      2,
3556                      0644,
3557                      DB_HASH,
3558                      0);
3559 #endif
3560         ${cf_cv_main_return:-return}(result != 0)
3561 ],[
3562         if test -n "$cf_db_libs" ; then
3563                 cf_cv_hashed_db_libs=$cf_db_libs
3564         else
3565                 cf_cv_hashed_db_libs=default
3566         fi
3567         LIBS="$cf_save_libs"
3568         break
3569 ])
3570         LIBS="$cf_save_libs"
3571 done
3572 ])
3573 ])dnl
3574 dnl ---------------------------------------------------------------------------
3575 dnl CF_HASHED_DB_VERSION version: 4 updated: 2014/04/12 16:47:01
3576 dnl --------------------
3577 dnl Given that we have the header file for hashed database, find the version
3578 dnl information.
3579 AC_DEFUN([CF_HASHED_DB_VERSION],
3580 [
3581 AC_CACHE_CHECK(for version of db, cf_cv_hashed_db_version,[
3582 cf_cv_hashed_db_version=unknown
3583
3584 for cf_db_version in 1 2 3 4 5 6
3585 do
3586         CF_MSG_LOG(checking for db version $cf_db_version)
3587         AC_TRY_COMPILE([
3588 $ac_includes_default
3589 #include <db.h>
3590
3591 #ifdef DB_VERSION_MAJOR
3592         /* db2 (DB_VERSION_MAJOR=2) has also DB_VERSION_MINOR, tested with 7 */
3593 #if $cf_db_version == DB_VERSION_MAJOR
3594         /* ok */
3595 #else
3596         make an error
3597 #endif
3598 #else
3599 #if $cf_db_version == 1
3600         /* ok: assuming this is DB 1.8.5 */
3601 #else
3602         make an error
3603 #endif
3604 #endif
3605 ],[DBT *foo = 0],[
3606         cf_cv_hashed_db_version=$cf_db_version
3607         break
3608         ])
3609 done
3610 ])
3611 ])dnl
3612 dnl ---------------------------------------------------------------------------
3613 dnl CF_HEADER_PATH version: 13 updated: 2015/04/15 19:08:48
3614 dnl --------------
3615 dnl Construct a search-list of directories for a nonstandard header-file
3616 dnl
3617 dnl Parameters
3618 dnl     $1 = the variable to return as result
3619 dnl     $2 = the package name
3620 AC_DEFUN([CF_HEADER_PATH],
3621 [
3622 $1=
3623
3624 # collect the current set of include-directories from compiler flags
3625 cf_header_path_list=""
3626 if test -n "${CFLAGS}${CPPFLAGS}" ; then
3627         for cf_header_path in $CPPFLAGS $CFLAGS
3628         do
3629                 case $cf_header_path in
3630                 (-I*)
3631                         cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
3632                         CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
3633                         cf_header_path_list="$cf_header_path_list [$]$1"
3634                         ;;
3635                 esac
3636         done
3637 fi
3638
3639 # add the variations for the package we are looking for
3640 CF_SUBDIR_PATH($1,$2,include)
3641
3642 test "$includedir" != NONE && \
3643 test "$includedir" != "/usr/include" && \
3644 test -d "$includedir" && {
3645         test -d $includedir &&    $1="[$]$1 $includedir"
3646         test -d $includedir/$2 && $1="[$]$1 $includedir/$2"
3647 }
3648
3649 test "$oldincludedir" != NONE && \
3650 test "$oldincludedir" != "/usr/include" && \
3651 test -d "$oldincludedir" && {
3652         test -d $oldincludedir    && $1="[$]$1 $oldincludedir"
3653         test -d $oldincludedir/$2 && $1="[$]$1 $oldincludedir/$2"
3654 }
3655
3656 $1="[$]$1 $cf_header_path_list"
3657 ])dnl
3658 dnl ---------------------------------------------------------------------------
3659 dnl CF_HELP_MESSAGE version: 4 updated: 2019/12/31 08:53:54
3660 dnl ---------------
3661 dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
3662 AC_DEFUN([CF_HELP_MESSAGE],
3663 [CF_ACVERSION_CHECK(2.53,[],[
3664 AC_DIVERT_HELP($1)])dnl
3665 ])dnl
3666 dnl ---------------------------------------------------------------------------
3667 dnl CF_INCLUDE_DIRS version: 10 updated: 2014/09/19 20:58:42
3668 dnl ---------------
3669 dnl Construct the list of include-options according to whether we're building
3670 dnl in the source directory or using '--srcdir=DIR' option.
3671 AC_DEFUN([CF_INCLUDE_DIRS],
3672 [
3673 if test "$srcdir" != "."; then
3674         CPPFLAGS="-I\${srcdir}/../include $CPPFLAGS"
3675 fi
3676 CPPFLAGS="-I../include $CPPFLAGS"
3677 if test "$srcdir" != "."; then
3678         CPPFLAGS="-I\${srcdir} $CPPFLAGS"
3679 fi
3680 CPPFLAGS="-I. $CPPFLAGS"
3681 AC_SUBST(CPPFLAGS)
3682 ])dnl
3683 dnl ---------------------------------------------------------------------------
3684 dnl CF_INSTALL_OPTS version: 2 updated: 2018/08/18 12:19:21
3685 dnl ---------------
3686 dnl prompt for/fill-in useful install-program options
3687 AC_DEFUN([CF_INSTALL_OPTS],
3688 [
3689 CF_INSTALL_OPT_S
3690 CF_INSTALL_OPT_P
3691 CF_INSTALL_OPT_O
3692 ])dnl
3693 dnl ---------------------------------------------------------------------------
3694 dnl CF_INSTALL_OPT_O version: 2 updated: 2015/05/15 19:45:35
3695 dnl ----------------
3696 dnl Almost all "install" programs default to the current user's ownership.
3697 dnl Almost - MINIX is an exception.
3698 AC_DEFUN([CF_INSTALL_OPT_O],
3699 [
3700 AC_MSG_CHECKING(if install needs to be told about ownership)
3701 case `$ac_config_guess` in
3702 (*minix)
3703         with_install_o=yes
3704         ;;
3705 (*)
3706         with_install_o=no
3707         ;;
3708 esac
3709
3710 AC_MSG_RESULT($with_install_o)
3711 if test "x$with_install_o" = xyes
3712 then
3713         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'`
3714 else
3715         INSTALL_OPT_O=
3716 fi
3717
3718 AC_SUBST(INSTALL_OPT_O)
3719 ])dnl
3720 dnl ---------------------------------------------------------------------------
3721 dnl CF_INSTALL_OPT_P version: 1 updated: 2018/08/18 12:19:21
3722 dnl ----------------
3723 dnl Some install-programs accept a "-p" option to preserve file modification
3724 dnl timestamps.  That can be useful as an install option, as well as a way to
3725 dnl avoid the need for ranlib after copying a static archive.
3726 AC_DEFUN([CF_INSTALL_OPT_P],
3727 [
3728 : ${INSTALL:=install}
3729 AC_CACHE_CHECK(if install accepts -p option, cf_cv_install_p,[
3730         rm -rf conftest*
3731         date >conftest.in
3732         mkdir conftest.out
3733         sleep 3
3734         if $INSTALL -p conftest.in conftest.out 2>/dev/null
3735         then
3736                 if test -f conftest.out/conftest.in
3737                 then
3738                         test conftest.in -nt conftest.out/conftest.in 2>conftest.err && \
3739                         test conftest.out/conftest.in -nt conftest.in 2>conftest.err
3740                         if test -s conftest.err
3741                         then
3742                                 cf_cv_install_p=no
3743                         else
3744                                 cf_cv_install_p=yes
3745                         fi
3746                 else
3747                         cf_cv_install_p=no
3748                 fi
3749         else
3750                 cf_cv_install_p=no
3751         fi
3752         rm -rf conftest*
3753 ])
3754 ])dnl
3755 dnl ---------------------------------------------------------------------------
3756 dnl CF_INSTALL_OPT_S version: 2 updated: 2018/08/18 12:19:21
3757 dnl ----------------
3758 dnl By default, we should strip executables which are installed, but leave the
3759 dnl ability to suppress that for unit-testing.
3760 AC_DEFUN([CF_INSTALL_OPT_S],
3761 [
3762 AC_MSG_CHECKING(if you want to install stripped executables)
3763 CF_ARG_DISABLE(stripping,
3764         [  --disable-stripping     do not strip (debug info) installed executables],
3765         [with_stripping=no],
3766         [with_stripping=yes])
3767 AC_MSG_RESULT($with_stripping)
3768
3769 if test "$with_stripping" = yes
3770 then
3771         INSTALL_OPT_S="-s"
3772 else
3773         INSTALL_OPT_S=
3774 fi
3775 AC_SUBST(INSTALL_OPT_S)
3776 ])dnl
3777 dnl ---------------------------------------------------------------------------
3778 dnl CF_INTEL_COMPILER version: 7 updated: 2015/04/12 15:39:00
3779 dnl -----------------
3780 dnl Check if the given compiler is really the Intel compiler for Linux.  It
3781 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
3782 dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
3783 dnl
3784 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
3785 dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
3786 dnl the wrappers for gcc and g++ warnings.
3787 dnl
3788 dnl $1 = GCC (default) or GXX
3789 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
3790 dnl $3 = CFLAGS (default) or CXXFLAGS
3791 AC_DEFUN([CF_INTEL_COMPILER],[
3792 AC_REQUIRE([AC_CANONICAL_HOST])
3793 ifelse([$2],,INTEL_COMPILER,[$2])=no
3794
3795 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
3796         case $host_os in
3797         (linux*|gnu*)
3798                 AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
3799                 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
3800                 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
3801                 AC_TRY_COMPILE([],[
3802 #ifdef __INTEL_COMPILER
3803 #else
3804 make an error
3805 #endif
3806 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
3807 cf_save_CFLAGS="$cf_save_CFLAGS -we147"
3808 ],[])
3809                 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
3810                 AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
3811                 ;;
3812         esac
3813 fi
3814 ])dnl
3815 dnl ---------------------------------------------------------------------------
3816 dnl CF_ISASCII version: 4 updated: 2012/10/06 17:56:13
3817 dnl ----------
3818 dnl Check if we have either a function or macro for 'isascii()'.
3819 AC_DEFUN([CF_ISASCII],
3820 [
3821 AC_MSG_CHECKING(for isascii)
3822 AC_CACHE_VAL(cf_cv_have_isascii,[
3823         AC_TRY_LINK([#include <ctype.h>],[int x = isascii(' ')],
3824         [cf_cv_have_isascii=yes],
3825         [cf_cv_have_isascii=no])
3826 ])dnl
3827 AC_MSG_RESULT($cf_cv_have_isascii)
3828 test "$cf_cv_have_isascii" = yes && AC_DEFINE(HAVE_ISASCII,1,[Define to 1 if we have isascii()])
3829 ])dnl
3830 dnl ---------------------------------------------------------------------------
3831 dnl CF_LARGEFILE version: 12 updated: 2020/03/19 20:23:48
3832 dnl ------------
3833 dnl Add checks for large file support.
3834 AC_DEFUN([CF_LARGEFILE],[
3835 ifdef([AC_FUNC_FSEEKO],[
3836         AC_SYS_LARGEFILE
3837         if test "$enable_largefile" != no ; then
3838         AC_FUNC_FSEEKO
3839
3840         # Normally we would collect these definitions in the config.h,
3841         # but (like _XOPEN_SOURCE), some environments rely on having these
3842         # defined before any of the system headers are included.  Another
3843         # case comes up with C++, e.g., on AIX the compiler compiles the
3844         # header files by themselves before looking at the body files it is
3845         # told to compile.  For ncurses, those header files do not include
3846         # the config.h
3847         if test "$ac_cv_sys_large_files" != no
3848         then
3849                 CF_APPEND_TEXT(CPPFLAGS,-D_LARGE_FILES)
3850         fi
3851         if test "$ac_cv_sys_largefile_source" != no
3852         then
3853                 CF_APPEND_TEXT(CPPFLAGS,-D_LARGEFILE_SOURCE)
3854         fi
3855         if test "$ac_cv_sys_file_offset_bits" != no
3856         then
3857                 CF_APPEND_TEXT(CPPFLAGS,-D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits)
3858         fi
3859
3860         AC_CACHE_CHECK(whether to use struct dirent64, cf_cv_struct_dirent64,[
3861                 AC_TRY_COMPILE([
3862 #pragma GCC diagnostic error "-Wincompatible-pointer-types"
3863 #include <sys/types.h>
3864 #include <dirent.h>
3865                 ],[
3866                 /* if transitional largefile support is setup, this is true */
3867                 extern struct dirent64 * readdir(DIR *);
3868                 struct dirent64 *x = readdir((DIR *)0);
3869                 struct dirent *y = readdir((DIR *)0);
3870                 int z = x - y;
3871                 (void)z;
3872                 ],
3873                 [cf_cv_struct_dirent64=yes],
3874                 [cf_cv_struct_dirent64=no])
3875         ])
3876         test "$cf_cv_struct_dirent64" = yes && AC_DEFINE(HAVE_STRUCT_DIRENT64,1,[Define to 1 if we have struct dirent64])
3877         fi
3878 ])
3879 ])
3880 dnl ---------------------------------------------------------------------------
3881 dnl CF_LDFLAGS_STATIC version: 12 updated: 2015/04/18 08:56:57
3882 dnl -----------------
3883 dnl Check for compiler/linker flags used to temporarily force usage of static
3884 dnl libraries.  This depends on the compiler and platform.  Use this to help
3885 dnl ensure that the linker picks up a given library based on its position in
3886 dnl the list of linker options and libraries.
3887 AC_DEFUN([CF_LDFLAGS_STATIC],[
3888
3889 if test "$GCC" = yes ; then
3890         case $cf_cv_system_name in
3891         (OS/2*|os2*|aix[[4]]*|solaris2.1[[0-9]]|darwin*)
3892                 LDFLAGS_STATIC=
3893                 LDFLAGS_SHARED=
3894                 ;;
3895         (*)     # normally, except when broken
3896                 LDFLAGS_STATIC=-static
3897                 LDFLAGS_SHARED=-dynamic
3898                 ;;
3899         esac
3900 else
3901         case $cf_cv_system_name in
3902         (aix[[4-7]]*)   # from ld manpage
3903                 LDFLAGS_STATIC=-bstatic
3904                 LDFLAGS_SHARED=-bdynamic
3905                 ;;
3906         (hpux*)         # from ld manpage for hpux10.20, hpux11.11
3907                 # We could also use just "archive" and "shared".
3908                 LDFLAGS_STATIC=-Wl,-a,archive_shared
3909                 LDFLAGS_SHARED=-Wl,-a,shared_archive
3910                 ;;
3911         (irix*)         # from ld manpage IRIX64
3912                 LDFLAGS_STATIC=-Bstatic
3913                 LDFLAGS_SHARED=-Bdynamic
3914                 ;;
3915         (osf[[45]]*)    # from ld manpage osf4.0d, osf5.1
3916                 # alternative "-oldstyle_liblookup" (not in cc manpage)
3917                 LDFLAGS_STATIC=-noso
3918                 LDFLAGS_SHARED=-so_archive
3919                 ;;
3920         (solaris2*)
3921                 LDFLAGS_STATIC=-Bstatic
3922                 LDFLAGS_SHARED=-Bdynamic
3923                 ;;
3924         esac
3925 fi
3926
3927 if test -n "$LDFLAGS_STATIC" && test -n "$LDFLAGS_SHARED"
3928 then
3929         AC_MSG_CHECKING(if linker supports switching between static/dynamic)
3930
3931         rm -f libconftest.a
3932         cat >conftest.$ac_ext <<EOF
3933 #line __oline__ "configure"
3934 #include <stdio.h>
3935 int cf_ldflags_static(FILE *fp) { return fflush(fp); }
3936 EOF
3937         if AC_TRY_EVAL(ac_compile) ; then
3938                 ( $AR $ARFLAGS libconftest.a conftest.o ) 2>&AC_FD_CC 1>/dev/null
3939                 ( eval $RANLIB libconftest.a ) 2>&AC_FD_CC >/dev/null
3940         fi
3941         rm -f conftest.*
3942
3943         cf_save_LIBS="$LIBS"
3944
3945         LIBS="$LDFLAGS_STATIC -L`pwd` -lconftest $LDFLAGS_DYNAMIC $LIBS"
3946         AC_TRY_LINK([
3947 #line __oline__ "configure"
3948 #include <stdio.h>
3949 int cf_ldflags_static(FILE *fp);
3950 ],[
3951         return cf_ldflags_static(stdin);
3952 ],[
3953         # some linkers simply ignore the -dynamic
3954         case x`file conftest$ac_exeext 2>/dev/null` in
3955         (*static*)
3956                 cf_ldflags_static=no
3957                 ;;
3958         (*)
3959                 cf_ldflags_static=yes
3960                 ;;
3961         esac
3962 ],[cf_ldflags_static=no])
3963
3964         rm -f libconftest.*
3965         LIBS="$cf_save_LIBS"
3966
3967         AC_MSG_RESULT($cf_ldflags_static)
3968
3969         if test $cf_ldflags_static != yes
3970         then
3971                 LDFLAGS_STATIC=
3972                 LDFLAGS_SHARED=
3973         fi
3974 else
3975         LDFLAGS_STATIC=
3976         LDFLAGS_SHARED=
3977 fi
3978
3979 AC_SUBST(LDFLAGS_STATIC)
3980 AC_SUBST(LDFLAGS_SHARED)
3981 ])
3982 dnl ---------------------------------------------------------------------------
3983 dnl CF_LD_RPATH_OPT version: 8 updated: 2018/08/18 16:36:35
3984 dnl ---------------
3985 dnl For the given system and compiler, find the compiler flags to pass to the
3986 dnl loader to use the "rpath" feature.
3987 AC_DEFUN([CF_LD_RPATH_OPT],
3988 [
3989 AC_REQUIRE([CF_CHECK_CACHE])
3990
3991 LD_RPATH_OPT=
3992 if test "x$cf_cv_enable_rpath" != xno
3993 then
3994         AC_MSG_CHECKING(for an rpath option)
3995         case $cf_cv_system_name in
3996         (irix*)
3997                 if test "$GCC" = yes; then
3998                         LD_RPATH_OPT="-Wl,-rpath,"
3999                 else
4000                         LD_RPATH_OPT="-rpath "
4001                 fi
4002                 ;;
4003         (linux*|gnu*|k*bsd*-gnu|freebsd*)
4004                 LD_RPATH_OPT="-Wl,-rpath,"
4005                 ;;
4006         (openbsd[[2-9]].*|mirbsd*)
4007                 LD_RPATH_OPT="-Wl,-rpath,"
4008                 ;;
4009         (dragonfly*)
4010                 LD_RPATH_OPT="-rpath "
4011                 ;;
4012         (netbsd*)
4013                 LD_RPATH_OPT="-Wl,-rpath,"
4014                 ;;
4015         (osf*|mls+*)
4016                 LD_RPATH_OPT="-rpath "
4017                 ;;
4018         (solaris2*)
4019                 LD_RPATH_OPT="-R"
4020                 ;;
4021         (*)
4022                 ;;
4023         esac
4024         AC_MSG_RESULT($LD_RPATH_OPT)
4025
4026         case "x$LD_RPATH_OPT" in
4027         (x-R*)
4028                 AC_MSG_CHECKING(if we need a space after rpath option)
4029                 cf_save_LIBS="$LIBS"
4030                 CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
4031                 AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
4032                 LIBS="$cf_save_LIBS"
4033                 AC_MSG_RESULT($cf_rpath_space)
4034                 test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
4035                 ;;
4036         esac
4037 fi
4038 ])dnl
4039 dnl ---------------------------------------------------------------------------
4040 dnl CF_LD_SEARCHPATH version: 2 updated: 2019/09/26 20:34:14
4041 dnl ----------------
4042 dnl Try to obtain the linker's search-path, for use in scripts.
4043 dnl
4044 dnl Ignore LD_LIBRARY_PATH, etc.
4045 AC_DEFUN([CF_LD_SEARCHPATH],[
4046 AC_CACHE_CHECK(for linker search path,cf_cv_ld_searchpath,[
4047
4048 if test "$cross_compiling" != yes ; then
4049
4050 # GNU binutils' ld does not involve permissions which may stop ldconfig.
4051 cf_pathlist=`ld --verbose 2>/dev/null | grep SEARCH_DIR | sed -e 's,SEARCH_DIR[[("=]][[("=]]*,,g' -e 's/"[[)]];//gp' | sort -u`
4052
4053 # The -NX options tell newer versions of Linux ldconfig to not attempt to
4054 # update the cache, which makes it run faster.
4055 test -z "$cf_pathlist" && \
4056         cf_pathlist=`ldconfig -NX -v 2>/dev/null | sed -e '/^[[         ]]/d' -e 's/:$//' | sort -u`
4057
4058 test -z "$cf_pathlist" &&
4059         cf_pathlist=`ldconfig -v 2>/dev/null | sed -n -e '/^[[  ]]/d' -e 's/:$//p' | sort -u`
4060
4061 # This works with OpenBSD 6.5, which lists only filenames
4062 test -z "$cf_pathlist" &&
4063         cf_pathlist=`ldconfig -v 2>/dev/null | sed -n -e 's,^Adding \(.*\)/.*[$],\1,p' | sort -u`
4064
4065 if test -z "$cf_pathlist"
4066 then
4067         # dyld default path with MacOS
4068         if test -f /usr/bin/otool && test "x`uname -s`" = xDarwin
4069         then
4070                 # do this to bypass check
4071                 cf_cv_ld_searchpath='$HOME/lib'
4072                 cf_pathlist="/usr/local/lib /lib /usr/lib"
4073         fi
4074 fi
4075
4076 if test -z "$cf_pathlist"
4077 then
4078         # Solaris is hardcoded
4079         if test -d /opt/SUNWspro/lib
4080         then
4081                 cf_pathlist="/opt/SUNWspro/lib /usr/ccs/lib /usr/lib"
4082         elif test -d /usr/ccs/lib
4083         then
4084                 cf_pathlist="/usr/ccs/lib /usr/lib"
4085         fi
4086 fi
4087
4088 fi
4089
4090 # If nothing else, assume it is conventional
4091 test -z "$cf_pathlist" && cf_pathlist="/usr/lib /lib"
4092
4093 # Finally, check that this is only directories
4094 for cf_path in [$]0 $cf_pathlist
4095 do
4096         if test -d "$cf_path"; then
4097                 test -n "$cf_cv_ld_searchpath" && cf_cv_ld_searchpath="${cf_cv_ld_searchpath} "
4098                 cf_cv_ld_searchpath="${cf_cv_ld_searchpath}${cf_path}"
4099         fi
4100 done
4101
4102 # Ensure that it is nonempty
4103 test -z "$cf_cv_ld_searchpath" && cf_cv_ld_searchpath=/usr/lib
4104 ])
4105
4106 LD_SEARCHPATH=`echo "$cf_cv_ld_searchpath"|sed -e 's/ /|/g'`
4107 AC_SUBST(LD_SEARCHPATH)
4108 ])dnl
4109 dnl ---------------------------------------------------------------------------
4110 dnl CF_LIBRARY_PATH version: 10 updated: 2015/04/15 19:08:48
4111 dnl ---------------
4112 dnl Construct a search-list of directories for a nonstandard library-file
4113 dnl
4114 dnl Parameters
4115 dnl     $1 = the variable to return as result
4116 dnl     $2 = the package name
4117 AC_DEFUN([CF_LIBRARY_PATH],
4118 [
4119 $1=
4120 cf_library_path_list=""
4121 if test -n "${LDFLAGS}${LIBS}" ; then
4122         for cf_library_path in $LDFLAGS $LIBS
4123         do
4124                 case $cf_library_path in
4125                 (-L*)
4126                         cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
4127                         CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
4128                         cf_library_path_list="$cf_library_path_list [$]$1"
4129                         ;;
4130                 esac
4131         done
4132 fi
4133
4134 CF_SUBDIR_PATH($1,$2,lib)
4135
4136 $1="$cf_library_path_list [$]$1"
4137 ])dnl
4138 dnl ---------------------------------------------------------------------------
4139 dnl CF_LIBTOOL_VERSION version: 1 updated: 2013/04/06 18:03:09
4140 dnl ------------------
4141 AC_DEFUN([CF_LIBTOOL_VERSION],[
4142 if test -n "$LIBTOOL" && test "$LIBTOOL" != none
4143 then
4144         cf_cv_libtool_version=`$LIBTOOL --version 2>&1 | sed -e '/^$/d' |sed -e '2,$d' -e 's/([[^)]]*)//g' -e 's/^[[^1-9]]*//' -e 's/[[^0-9.]].*//'`
4145 else
4146         cf_cv_libtool_version=
4147 fi
4148 test -z "$cf_cv_libtool_version" && unset cf_cv_libtool_version
4149 ])dnl
4150 dnl ---------------------------------------------------------------------------
4151 dnl CF_LIB_PREFIX version: 13 updated: 2020/04/04 10:11:47
4152 dnl -------------
4153 dnl Compute the library-prefix for the given host system
4154 dnl $1 = variable to set
4155 define([CF_LIB_PREFIX],
4156 [
4157         case $cf_cv_system_name in
4158         (OS/2*|os2*)
4159                 if test "$DFT_LWR_MODEL" = libtool; then
4160                         LIB_PREFIX='lib'
4161                 else
4162                         LIB_PREFIX=''
4163                 fi
4164                 ;;
4165         (*-msvc*)
4166                 LIB_PREFIX=''
4167                 ;;
4168         (*)     LIB_PREFIX='lib'
4169                 ;;
4170         esac
4171 ifelse($1,,,[$1=$LIB_PREFIX])
4172         AC_SUBST(LIB_PREFIX)
4173 ])dnl
4174 dnl ---------------------------------------------------------------------------
4175 dnl CF_LIB_RULES version: 90 updated: 2020/04/04 10:11:47
4176 dnl ------------
4177 dnl Append definitions and rules for the given models to the subdirectory
4178 dnl Makefiles, and the recursion rule for the top-level Makefile.  If the
4179 dnl subdirectory is a library-source directory, modify the Libs_To_Make list in
4180 dnl the corresponding makefile to list the models that we'll generate.
4181 dnl
4182 dnl For shared libraries, make a list of symbolic links to construct when
4183 dnl generating each library.  The convention used for Linux is the simplest
4184 dnl one:
4185 dnl     lib<name>.so    ->
4186 dnl     lib<name>.so.<major>    ->
4187 dnl     lib<name>.so.<maj>.<minor>
4188 dnl
4189 dnl Note: Libs_To_Make is mixed case, since it is not a pure autoconf variable.
4190 AC_DEFUN([CF_LIB_RULES],
4191 [
4192 cf_prefix=$LIB_PREFIX
4193 AC_REQUIRE([CF_SUBST_NCURSES_VERSION])
4194
4195 case $cf_cv_shlib_version in
4196 (cygdll|msysdll|mingw|msvcdll)
4197         TINFO_NAME=$TINFO_ARG_SUFFIX
4198         TINFO_SUFFIX=.dll
4199         ;;
4200 esac
4201
4202 if test -n "$TINFO_SUFFIX" ; then
4203         case $TINFO_SUFFIX in
4204         (tw*)
4205                 TINFO_NAME="${TINFO_NAME}tw${EXTRA_SUFFIX}"
4206                 TINFO_SUFFIX=`echo $TINFO_SUFFIX | sed 's/^tw'$EXTRA_SUFFIX'//'`
4207                 ;;
4208         (t*)
4209                 TINFO_NAME="${TINFO_NAME}t${EXTRA_SUFFIX}"
4210                 TINFO_SUFFIX=`echo $TINFO_SUFFIX | sed 's/^t'$EXTRA_SUFFIX'//'`
4211                 ;;
4212         (w*)
4213                 TINFO_NAME="${TINFO_NAME}w${EXTRA_SUFFIX}"
4214                 TINFO_SUFFIX=`echo $TINFO_SUFFIX | sed 's/^w'$EXTRA_SUFFIX'//'`
4215                 ;;
4216         esac
4217 fi
4218
4219 for cf_dir in $SRC_SUBDIRS
4220 do
4221         if test ! -d $srcdir/$cf_dir ; then
4222                 continue
4223         elif test -f $srcdir/$cf_dir/modules; then
4224
4225                 SHARED_LIB=
4226                 Libs_To_Make=
4227                 cf_awk_program=
4228                 if test -n "${cf_cv_abi_version}" && test "x${cf_cv_abi_version}" != "x5"
4229                 then
4230                         cf_awk_program="$cf_awk_program\
4231 /deprecated in ABI${cf_cv_abi_version}/ { next; }\
4232 { sub(\"NCURSES([[WT]]+)?\", \"&${cf_cv_abi_version}\"); }\
4233 "
4234                 fi
4235
4236                 if test "x$WILDCARD_SYMS" = xno
4237                 then
4238                         cf_awk_program="$cf_awk_program\
4239 /[[     ]]_\\*;/ { skip=1; next; }\
4240 "
4241                 fi
4242
4243                 if test "x$cf_awk_program" != "x"
4244                 then
4245                         cat >>$cf_dir/Makefile <<CF_EOF
4246
4247 # Generated by CF_LIB_RULES
4248 resulting.map: $UNALTERED_SYMS
4249         $AWK 'BEGIN { skip = 1; last=""; } \
4250 $cf_awk_program \
4251 { if ( last != "" && ( skip == 0 || \[$]\[$]0 !~ /}/ ) ) { print last; }\
4252  skip = 0; last = \[$]\[$]0; } \
4253 END { print last; }' < $UNALTERED_SYMS >\[$]@
4254
4255 distclean::
4256         rm -f resulting.map
4257 CF_EOF
4258                 fi
4259
4260                 for cf_item in $cf_LIST_MODELS
4261                 do
4262                         CF_LIB_SUFFIX($cf_item,cf_suffix,cf_depsuf)
4263                         if test "$cf_dir" = "c++"
4264                         then
4265                                 CF_MAP_LIB_BASENAME(cf_libname,cxx)
4266                         else
4267                                 CF_MAP_LIB_BASENAME(cf_libname,$cf_dir)
4268                         fi
4269                         test -z "$cf_libname" && cf_libname="$cf_dir"
4270                         if test $cf_item = shared ; then
4271                                 if test -n "${LIB_SUFFIX}"
4272                                 then
4273                                         cf_shared_suffix=`echo "$cf_suffix" | sed 's/^'"${USE_LIB_SUFFIX}"'//'`
4274                                 else
4275                                         cf_shared_suffix="$cf_suffix"
4276                                 fi
4277                                 if test "$cf_cv_do_symlinks" = yes ; then
4278                                         cf_version_name=
4279
4280                                         case "$cf_cv_shlib_version" in
4281                                         (rel)
4282                                                 cf_version_name=REL_VERSION
4283                                                 ;;
4284                                         (abi)
4285                                                 cf_version_name=ABI_VERSION
4286                                                 ;;
4287                                         esac
4288
4289                                         if test -n "$cf_version_name"
4290                                         then
4291                                                 case "$cf_cv_system_name" in
4292                                                 (darwin*)
4293                                                         # "w", etc?
4294                                                         cf_suffix="${USE_LIB_SUFFIX}"'.${'$cf_version_name'}'"$cf_shared_suffix"
4295                                                         ;;
4296                                                 (*)
4297                                                         cf_suffix="$cf_suffix"'.${'$cf_version_name'}'
4298                                                         ;;
4299                                                 esac
4300                                         fi
4301                                         if test -n "${USE_LIB_SUFFIX}"
4302                                         then
4303                                                 cf_shared_suffix=`echo "$cf_suffix" | sed 's/^'"${USE_LIB_SUFFIX}"'//'`
4304                                         else
4305                                                 cf_shared_suffix="$cf_suffix"
4306                                         fi
4307                                 fi
4308                                 # cygwin needs import library, and has unique naming convention
4309                                 # use autodetected ${cf_prefix} for import lib and static lib, but
4310                                 # use 'cyg' prefix for shared lib.
4311                                 case $cf_cv_shlib_version in
4312                                 (cygdll)
4313                                         cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
4314                                         cf_add_lib="../lib/cyg${cf_libname}${cf_cygsuf}"
4315                                         ;;
4316                                 (msysdll)
4317                                         cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
4318                                         cf_add_lib="../lib/msys-${cf_libname}${cf_cygsuf}"
4319                                         ;;
4320                                 (mingw)
4321                                         cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
4322                                         cf_add_lib="../lib/lib${cf_libname}${cf_cygsuf}"
4323                                         ;;
4324                                 (msvcdll)
4325                                         cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
4326                                         cf_add_lib="../lib/${cf_libname}${cf_cygsuf}"
4327                                         ;;
4328                                 (*)
4329                                         cf_add_lib=
4330                                         ;;
4331                                 esac
4332                                 if test -n "$cf_add_lib"
4333                                 then
4334                                         Libs_To_Make="$Libs_To_Make $cf_add_lib"
4335                                         continue
4336                                 fi
4337                         fi
4338                         cf_add_lib="../lib/${cf_prefix}${cf_libname}${cf_suffix}"
4339                         Libs_To_Make="$Libs_To_Make $cf_add_lib"
4340                 done
4341
4342                 if test $cf_dir = ncurses ; then
4343                         cf_subsets="$LIB_SUBSETS"
4344                         cf_r_parts="$cf_subsets"
4345                         cf_liblist="$Libs_To_Make"
4346
4347                         while test -n "$cf_r_parts"
4348                         do
4349                                 cf_l_parts=`echo "$cf_r_parts" |sed -e 's/ .*$//'`
4350                                 cf_r_parts=`echo "$cf_r_parts" |sed -e 's/^[[^ ]]* //'`
4351                                 if test "$cf_l_parts" != "$cf_r_parts" ; then
4352                                         cf_add_lib=
4353                                         case $cf_l_parts in
4354                                         (*termlib*)
4355                                                 cf_add_lib=`echo $cf_liblist |sed -e s%${LIB_NAME}${USE_LIB_SUFFIX}%${TINFO_LIB_SUFFIX}%g`
4356                                                 ;;
4357                                         (*ticlib*)
4358                                                 cf_add_lib=`echo $cf_liblist |sed -e s%${LIB_NAME}${USE_LIB_SUFFIX}%${TICS_LIB_SUFFIX}%g`
4359                                                 ;;
4360                                         (*)
4361                                                 break
4362                                                 ;;
4363                                         esac
4364                                         if test -n "$cf_add_lib"; then
4365                                                 Libs_To_Make="$cf_add_lib $Libs_To_Make"
4366                                         fi
4367                                 else
4368                                         break
4369                                 fi
4370                         done
4371                 else
4372                         cf_subsets=`echo "$LIB_SUBSETS" | sed -e 's/^termlib.* //'`
4373                 fi
4374
4375                 if test $cf_dir = c++; then
4376                         if test "x$with_shared_cxx" != xyes && test -n "$cf_shared_suffix"; then