4dc16ba34584d3089f3b378288118386174c2639
[ncurses.git] / aclocal.m4
1 dnl***************************************************************************
2 dnl Copyright (c) 1998-2015,2016 Free Software Foundation, Inc.              *
3 dnl                                                                          *
4 dnl Permission is hereby granted, free of charge, to any person obtaining a  *
5 dnl copy of this software and associated documentation files (the            *
6 dnl "Software"), to deal in the Software without restriction, including      *
7 dnl without limitation the rights to use, copy, modify, merge, publish,      *
8 dnl distribute, distribute with modifications, sublicense, and/or sell       *
9 dnl copies of the Software, and to permit persons to whom the Software is    *
10 dnl furnished to do so, subject to the following conditions:                 *
11 dnl                                                                          *
12 dnl The above copyright notice and this permission notice shall be included  *
13 dnl in all copies or substantial portions of the Software.                   *
14 dnl                                                                          *
15 dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS  *
16 dnl OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF               *
17 dnl MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.   *
18 dnl IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,   *
19 dnl DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR    *
20 dnl OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR    *
21 dnl THE USE OR OTHER DEALINGS IN THE SOFTWARE.                               *
22 dnl                                                                          *
23 dnl Except as contained in this notice, the name(s) of the above copyright   *
24 dnl holders shall not be used in advertising or otherwise to promote the     *
25 dnl sale, use or other dealings in this Software without prior written       *
26 dnl authorization.                                                           *
27 dnl***************************************************************************
28 dnl
29 dnl Author: Thomas E. Dickey 1995-on
30 dnl
31 dnl $Id: aclocal.m4,v 1.801 2016/10/08 21:35:33 tom Exp $
32 dnl Macros used in NCURSES auto-configuration script.
33 dnl
34 dnl These macros are maintained separately from NCURSES.  The copyright on
35 dnl this file applies to the aggregation of macros and does not affect use of
36 dnl these macros in other applications.
37 dnl
38 dnl See http://invisible-island.net/autoconf/ for additional information.
39 dnl
40 dnl ---------------------------------------------------------------------------
41 dnl ---------------------------------------------------------------------------
42 dnl AM_LANGINFO_CODESET version: 4 updated: 2015/04/18 08:56:57
43 dnl -------------------
44 dnl Inserted as requested by gettext 0.10.40
45 dnl File from /usr/share/aclocal
46 dnl codeset.m4
47 dnl ====================
48 dnl serial AM1
49 dnl
50 dnl From Bruno Haible.
51 AC_DEFUN([AM_LANGINFO_CODESET],
52 [
53 AC_CACHE_CHECK([for nl_langinfo and CODESET], am_cv_langinfo_codeset,
54         [AC_TRY_LINK([#include <langinfo.h>],
55         [char* cs = nl_langinfo(CODESET);],
56         am_cv_langinfo_codeset=yes,
57         am_cv_langinfo_codeset=no)
58         ])
59         if test $am_cv_langinfo_codeset = yes; then
60                 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
61                 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
62         fi
63 ])dnl
64 dnl ---------------------------------------------------------------------------
65 dnl CF_ABI_DEFAULTS version: 2 updated: 2015/06/06 13:49:58
66 dnl ---------------
67 dnl Provide configure-script defaults for different ncurses ABIs.
68 AC_DEFUN([CF_ABI_DEFAULTS],[
69 AC_REQUIRE([CF_NCURSES_WITH_ABI_VERSION])
70 case x$cf_cv_abi_version in
71 (x[[6789]])
72         cf_dft_ext_colors=yes
73         cf_dft_ext_const=yes
74         cf_dft_ext_mouse=yes
75         cf_dft_ext_putwin=yes
76         cf_dft_ext_spfuncs=yes
77         cf_dft_filter_syms=yes
78         cf_dft_chtype=uint32_t
79         cf_dft_mmask_t=uint32_t
80         cf_dft_interop=yes
81         cf_dft_tparm_arg=intptr_t
82         cf_dft_with_lp64=yes
83         ;;
84 (*)
85         cf_dft_ext_colors=no
86         cf_dft_ext_const=no
87         cf_dft_ext_mouse=no
88         cf_dft_ext_putwin=no
89         cf_dft_ext_spfuncs=no
90         cf_dft_filter_syms=no
91         cf_dft_chtype=auto
92         cf_dft_mmask_t=auto
93         cf_dft_interop=no
94         cf_dft_tparm_arg=long
95         cf_dft_with_lp64=no
96         ;;
97 esac
98 ])dnl
99 dnl ---------------------------------------------------------------------------
100 dnl CF_ACVERSION_CHECK version: 5 updated: 2014/06/04 19:11:49
101 dnl ------------------
102 dnl Conditionally generate script according to whether we're using a given autoconf.
103 dnl
104 dnl $1 = version to compare against
105 dnl $2 = code to use if AC_ACVERSION is at least as high as $1.
106 dnl $3 = code to use if AC_ACVERSION is older than $1.
107 define([CF_ACVERSION_CHECK],
108 [
109 ifdef([AC_ACVERSION], ,[ifdef([AC_AUTOCONF_VERSION],[m4_copy([AC_AUTOCONF_VERSION],[AC_ACVERSION])],[m4_copy([m4_PACKAGE_VERSION],[AC_ACVERSION])])])dnl
110 ifdef([m4_version_compare],
111 [m4_if(m4_version_compare(m4_defn([AC_ACVERSION]), [$1]), -1, [$3], [$2])],
112 [CF_ACVERSION_COMPARE(
113 AC_PREREQ_CANON(AC_PREREQ_SPLIT([$1])),
114 AC_PREREQ_CANON(AC_PREREQ_SPLIT(AC_ACVERSION)), AC_ACVERSION, [$2], [$3])])])dnl
115 dnl ---------------------------------------------------------------------------
116 dnl CF_ACVERSION_COMPARE version: 3 updated: 2012/10/03 18:39:53
117 dnl --------------------
118 dnl CF_ACVERSION_COMPARE(MAJOR1, MINOR1, TERNARY1,
119 dnl                      MAJOR2, MINOR2, TERNARY2,
120 dnl                      PRINTABLE2, not FOUND, FOUND)
121 define([CF_ACVERSION_COMPARE],
122 [ifelse(builtin([eval], [$2 < $5]), 1,
123 [ifelse([$8], , ,[$8])],
124 [ifelse([$9], , ,[$9])])])dnl
125 dnl ---------------------------------------------------------------------------
126 dnl CF_ADA_INCLUDE_DIRS version: 8 updated: 2013/10/14 04:24:07
127 dnl -------------------
128 dnl Construct the list of include-options for the C programs in the Ada95
129 dnl binding.
130 AC_DEFUN([CF_ADA_INCLUDE_DIRS],
131 [
132 ACPPFLAGS="-I. -I../include -I../../include $ACPPFLAGS"
133 if test "$srcdir" != "."; then
134         ACPPFLAGS="-I\${srcdir}/../../include $ACPPFLAGS"
135 fi
136 if test "$GCC" != yes; then
137         ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
138 elif test "$includedir" != "/usr/include"; then
139         if test "$includedir" = '${prefix}/include' ; then
140                 if test x$prefix != x/usr ; then
141                         ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
142                 fi
143         else
144                 ACPPFLAGS="$ACPPFLAGS -I\${includedir}"
145         fi
146 fi
147 AC_SUBST(ACPPFLAGS)
148 ])dnl
149 dnl ---------------------------------------------------------------------------
150 dnl CF_ADD_ADAFLAGS version: 1 updated: 2010/06/19 15:22:18
151 dnl ---------------
152 dnl Add to $ADAFLAGS, which is substituted into makefile and scripts.
153 AC_DEFUN([CF_ADD_ADAFLAGS],[
154         ADAFLAGS="$ADAFLAGS $1"
155         AC_SUBST(ADAFLAGS)
156 ])dnl
157 dnl ---------------------------------------------------------------------------
158 dnl CF_ADD_CFLAGS version: 12 updated: 2015/04/12 15:39:00
159 dnl -------------
160 dnl Copy non-preprocessor flags to $CFLAGS, preprocessor flags to $CPPFLAGS
161 dnl The second parameter if given makes this macro verbose.
162 dnl
163 dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
164 dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
165 dnl confused by the quotes (which require backslashes to keep them usable).
166 AC_DEFUN([CF_ADD_CFLAGS],
167 [
168 cf_fix_cppflags=no
169 cf_new_cflags=
170 cf_new_cppflags=
171 cf_new_extra_cppflags=
172
173 for cf_add_cflags in $1
174 do
175 case $cf_fix_cppflags in
176 (no)
177         case $cf_add_cflags in
178         (-undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C)
179                 case $cf_add_cflags in
180                 (-D*)
181                         cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^-D[[^=]]*='\''\"[[^"]]*//'`
182
183                         test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
184                                 && test -z "${cf_tst_cflags}" \
185                                 && cf_fix_cppflags=yes
186
187                         if test $cf_fix_cppflags = yes ; then
188                                 cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
189                                 continue
190                         elif test "${cf_tst_cflags}" = "\"'" ; then
191                                 cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
192                                 continue
193                         fi
194                         ;;
195                 esac
196                 case "$CPPFLAGS" in
197                 (*$cf_add_cflags)
198                         ;;
199                 (*)
200                         case $cf_add_cflags in
201                         (-D*)
202                                 cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
203                                 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,$cf_tst_cppflags)
204                                 ;;
205                         esac
206                         cf_new_cppflags="$cf_new_cppflags $cf_add_cflags"
207                         ;;
208                 esac
209                 ;;
210         (*)
211                 cf_new_cflags="$cf_new_cflags $cf_add_cflags"
212                 ;;
213         esac
214         ;;
215 (yes)
216         cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
217
218         cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^[[^"]]*"'\''//'`
219
220         test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
221                 && test -z "${cf_tst_cflags}" \
222                 && cf_fix_cppflags=no
223         ;;
224 esac
225 done
226
227 if test -n "$cf_new_cflags" ; then
228         ifelse([$2],,,[CF_VERBOSE(add to \$CFLAGS $cf_new_cflags)])
229         CFLAGS="$CFLAGS $cf_new_cflags"
230 fi
231
232 if test -n "$cf_new_cppflags" ; then
233         ifelse([$2],,,[CF_VERBOSE(add to \$CPPFLAGS $cf_new_cppflags)])
234         CPPFLAGS="$CPPFLAGS $cf_new_cppflags"
235 fi
236
237 if test -n "$cf_new_extra_cppflags" ; then
238         ifelse([$2],,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)])
239         EXTRA_CPPFLAGS="$cf_new_extra_cppflags $EXTRA_CPPFLAGS"
240 fi
241
242 AC_SUBST(EXTRA_CPPFLAGS)
243
244 ])dnl
245 dnl ---------------------------------------------------------------------------
246 dnl CF_ADD_INCDIR version: 14 updated: 2015/05/25 20:53:04
247 dnl -------------
248 dnl Add an include-directory to $CPPFLAGS.  Don't add /usr/include, since it's
249 dnl redundant.  We don't normally need to add -I/usr/local/include for gcc,
250 dnl but old versions (and some misinstalled ones) need that.  To make things
251 dnl worse, gcc 3.x may give error messages if -I/usr/local/include is added to
252 dnl the include-path).
253 AC_DEFUN([CF_ADD_INCDIR],
254 [
255 if test -n "$1" ; then
256   for cf_add_incdir in $1
257   do
258         while test $cf_add_incdir != /usr/include
259         do
260           if test -d $cf_add_incdir
261           then
262                 cf_have_incdir=no
263                 if test -n "$CFLAGS$CPPFLAGS" ; then
264                   # a loop is needed to ensure we can add subdirs of existing dirs
265                   for cf_test_incdir in $CFLAGS $CPPFLAGS ; do
266                         if test ".$cf_test_incdir" = ".-I$cf_add_incdir" ; then
267                           cf_have_incdir=yes; break
268                         fi
269                   done
270                 fi
271
272                 if test "$cf_have_incdir" = no ; then
273                   if test "$cf_add_incdir" = /usr/local/include ; then
274                         if test "$GCC" = yes
275                         then
276                           cf_save_CPPFLAGS=$CPPFLAGS
277                           CPPFLAGS="$CPPFLAGS -I$cf_add_incdir"
278                           AC_TRY_COMPILE([#include <stdio.h>],
279                                   [printf("Hello")],
280                                   [],
281                                   [cf_have_incdir=yes])
282                           CPPFLAGS=$cf_save_CPPFLAGS
283                         fi
284                   fi
285                 fi
286
287                 if test "$cf_have_incdir" = no ; then
288                   CF_VERBOSE(adding $cf_add_incdir to include-path)
289                   ifelse([$2],,CPPFLAGS,[$2])="$ifelse([$2],,CPPFLAGS,[$2]) -I$cf_add_incdir"
290
291                   cf_top_incdir=`echo $cf_add_incdir | sed -e 's%/include/.*$%/include%'`
292                   test "$cf_top_incdir" = "$cf_add_incdir" && break
293                   cf_add_incdir="$cf_top_incdir"
294                 else
295                   break
296                 fi
297           else
298                 break
299           fi
300         done
301   done
302 fi
303 ])dnl
304 dnl ---------------------------------------------------------------------------
305 dnl CF_ADD_LIB version: 2 updated: 2010/06/02 05:03:05
306 dnl ----------
307 dnl Add a library, used to enforce consistency.
308 dnl
309 dnl $1 = library to add, without the "-l"
310 dnl $2 = variable to update (default $LIBS)
311 AC_DEFUN([CF_ADD_LIB],[CF_ADD_LIBS(-l$1,ifelse($2,,LIBS,[$2]))])dnl
312 dnl ---------------------------------------------------------------------------
313 dnl CF_ADD_LIBDIR version: 10 updated: 2015/04/18 08:56:57
314 dnl -------------
315 dnl     Adds to the library-path
316 dnl
317 dnl     Some machines have trouble with multiple -L options.
318 dnl
319 dnl $1 is the (list of) directory(s) to add
320 dnl $2 is the optional name of the variable to update (default LDFLAGS)
321 dnl
322 AC_DEFUN([CF_ADD_LIBDIR],
323 [
324 if test -n "$1" ; then
325         for cf_add_libdir in $1
326         do
327                 if test $cf_add_libdir = /usr/lib ; then
328                         :
329                 elif test -d $cf_add_libdir
330                 then
331                         cf_have_libdir=no
332                         if test -n "$LDFLAGS$LIBS" ; then
333                                 # a loop is needed to ensure we can add subdirs of existing dirs
334                                 for cf_test_libdir in $LDFLAGS $LIBS ; do
335                                         if test ".$cf_test_libdir" = ".-L$cf_add_libdir" ; then
336                                                 cf_have_libdir=yes; break
337                                         fi
338                                 done
339                         fi
340                         if test "$cf_have_libdir" = no ; then
341                                 CF_VERBOSE(adding $cf_add_libdir to library-path)
342                                 ifelse([$2],,LDFLAGS,[$2])="-L$cf_add_libdir $ifelse([$2],,LDFLAGS,[$2])"
343                         fi
344                 fi
345         done
346 fi
347 ])dnl
348 dnl ---------------------------------------------------------------------------
349 dnl CF_ADD_LIBS version: 2 updated: 2014/07/13 14:33:27
350 dnl -----------
351 dnl Add one or more libraries, used to enforce consistency.  Libraries are
352 dnl prepended to an existing list, since their dependencies are assumed to
353 dnl already exist in the list.
354 dnl
355 dnl $1 = libraries to add, with the "-l", etc.
356 dnl $2 = variable to update (default $LIBS)
357 AC_DEFUN([CF_ADD_LIBS],[
358 cf_add_libs="$1"
359 # Filter out duplicates - this happens with badly-designed ".pc" files...
360 for cf_add_1lib in [$]ifelse($2,,LIBS,[$2])
361 do
362         for cf_add_2lib in $cf_add_libs
363         do
364                 if test "x$cf_add_1lib" = "x$cf_add_2lib"
365                 then
366                         cf_add_1lib=
367                         break
368                 fi
369         done
370         test -n "$cf_add_1lib" && cf_add_libs="$cf_add_libs $cf_add_1lib"
371 done
372 ifelse($2,,LIBS,[$2])="$cf_add_libs"
373 ])dnl
374 dnl ---------------------------------------------------------------------------
375 dnl CF_ADD_SUBDIR_PATH version: 4 updated: 2013/10/08 17:47:05
376 dnl ------------------
377 dnl Append to a search-list for a nonstandard header/lib-file
378 dnl     $1 = the variable to return as result
379 dnl     $2 = the package name
380 dnl     $3 = the subdirectory, e.g., bin, include or lib
381 dnl $4 = the directory under which we will test for subdirectories
382 dnl $5 = a directory that we do not want $4 to match
383 AC_DEFUN([CF_ADD_SUBDIR_PATH],
384 [
385 test "x$4" != "x$5" && \
386 test -d "$4" && \
387 ifelse([$5],NONE,,[(test -z "$5" || test x$5 = xNONE || test "x$4" != "x$5") &&]) {
388         test -n "$verbose" && echo "    ... testing for $3-directories under $4"
389         test -d $4/$3 &&          $1="[$]$1 $4/$3"
390         test -d $4/$3/$2 &&       $1="[$]$1 $4/$3/$2"
391         test -d $4/$3/$2/$3 &&    $1="[$]$1 $4/$3/$2/$3"
392         test -d $4/$2/$3 &&       $1="[$]$1 $4/$2/$3"
393         test -d $4/$2/$3/$2 &&    $1="[$]$1 $4/$2/$3/$2"
394 }
395 ])dnl
396 dnl ---------------------------------------------------------------------------
397 dnl CF_ARG_DISABLE version: 3 updated: 1999/03/30 17:24:31
398 dnl --------------
399 dnl Allow user to disable a normally-on option.
400 AC_DEFUN([CF_ARG_DISABLE],
401 [CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl
402 dnl ---------------------------------------------------------------------------
403 dnl CF_ARG_OPTION version: 5 updated: 2015/05/10 19:52:14
404 dnl -------------
405 dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
406 dnl values.
407 dnl
408 dnl Parameters:
409 dnl $1 = option name
410 dnl $2 = help-string
411 dnl $3 = action to perform if option is not default
412 dnl $4 = action if perform if option is default
413 dnl $5 = default option value (either 'yes' or 'no')
414 AC_DEFUN([CF_ARG_OPTION],
415 [AC_ARG_ENABLE([$1],[$2],[test "$enableval" != ifelse([$5],no,yes,no) && enableval=ifelse([$5],no,no,yes)
416         if test "$enableval" != "$5" ; then
417 ifelse([$3],,[    :]dnl
418 ,[    $3]) ifelse([$4],,,[
419         else
420                 $4])
421         fi],[enableval=$5 ifelse([$4],,,[
422         $4
423 ])dnl
424 ])])dnl
425 dnl ---------------------------------------------------------------------------
426 dnl CF_AR_FLAGS version: 6 updated: 2015/10/10 15:25:05
427 dnl -----------
428 dnl Check for suitable "ar" (archiver) options for updating an archive.
429 dnl
430 dnl In particular, handle some obsolete cases where the "-" might be omitted,
431 dnl as well as a workaround for breakage of make's archive rules by the GNU
432 dnl binutils "ar" program.
433 AC_DEFUN([CF_AR_FLAGS],[
434 AC_REQUIRE([CF_PROG_AR])
435
436 AC_CACHE_CHECK(for options to update archives, cf_cv_ar_flags,[
437         cf_cv_ar_flags=unknown
438         for cf_ar_flags in -curvU -curv curv -crv crv -cqv cqv -rv rv
439         do
440
441                 # check if $ARFLAGS already contains this choice
442                 if test "x$ARFLAGS" != "x" ; then
443                         cf_check_ar_flags=`echo "x$ARFLAGS" | sed -e "s/$cf_ar_flags\$//" -e "s/$cf_ar_flags / /"`
444                         if test "x$ARFLAGS" != "$cf_check_ar_flags" ; then
445                                 cf_cv_ar_flags=
446                                 break
447                         fi
448                 fi
449
450                 rm -f conftest.$ac_cv_objext
451                 rm -f conftest.a
452
453                 cat >conftest.$ac_ext <<EOF
454 #line __oline__ "configure"
455 int     testdata[[3]] = { 123, 456, 789 };
456 EOF
457                 if AC_TRY_EVAL(ac_compile) ; then
458                         echo "$AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext" >&AC_FD_CC
459                         $AR $ARFLAGS $cf_ar_flags conftest.a conftest.$ac_cv_objext 2>&AC_FD_CC 1>/dev/null
460                         if test -f conftest.a ; then
461                                 cf_cv_ar_flags=$cf_ar_flags
462                                 break
463                         fi
464                 else
465                         CF_VERBOSE(cannot compile test-program)
466                         break
467                 fi
468         done
469         rm -f conftest.a conftest.$ac_ext conftest.$ac_cv_objext
470 ])
471
472 if test -n "$ARFLAGS" ; then
473         if test -n "$cf_cv_ar_flags" ; then
474                 ARFLAGS="$ARFLAGS $cf_cv_ar_flags"
475         fi
476 else
477         ARFLAGS=$cf_cv_ar_flags
478 fi
479
480 AC_SUBST(ARFLAGS)
481 ])
482 dnl ---------------------------------------------------------------------------
483 dnl CF_AWK_BIG_PRINTF version: 5 updated: 2015/04/17 21:13:04
484 dnl -----------------
485 dnl Check if awk can handle big strings using printf.  Some older versions of
486 dnl awk choke on large strings passed via "%s".
487 dnl
488 dnl $1 = desired string size
489 dnl $2 = variable to set with result
490 AC_DEFUN([CF_AWK_BIG_PRINTF],
491 [
492         case x$AWK in
493         (x)
494                 eval $2=no
495                 ;;
496         (*)
497                 if ( ${AWK} 'BEGIN { xx = "x"; while (length(xx) < $1) { xx = xx "x"; }; printf("%s\n", xx); }' 2>/dev/null \
498                         | $AWK '{ printf "%d\n", length([$]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
499                         eval $2=yes
500                 else
501                         eval $2=no
502                 fi
503                 ;;
504         esac
505 ])dnl
506 dnl ---------------------------------------------------------------------------
507 dnl CF_BOOL_DECL version: 8 updated: 2004/01/30 15:51:18
508 dnl ------------
509 dnl Test if 'bool' is a builtin type in the configured C++ compiler.  Some
510 dnl older compilers (e.g., gcc 2.5.8) don't support 'bool' directly; gcc
511 dnl 2.6.3 does, in anticipation of the ANSI C++ standard.
512 dnl
513 dnl Treat the configuration-variable specially here, since we're directly
514 dnl substituting its value (i.e., 1/0).
515 dnl
516 dnl $1 is the shell variable to store the result in, if not $cv_cv_builtin_bool
517 AC_DEFUN([CF_BOOL_DECL],
518 [
519 AC_MSG_CHECKING(if we should include stdbool.h)
520
521 AC_CACHE_VAL(cf_cv_header_stdbool_h,[
522         AC_TRY_COMPILE([],[bool foo = false],
523                 [cf_cv_header_stdbool_h=0],
524                 [AC_TRY_COMPILE([
525 #ifndef __BEOS__
526 #include <stdbool.h>
527 #endif
528 ],[bool foo = false],
529                         [cf_cv_header_stdbool_h=1],
530                         [cf_cv_header_stdbool_h=0])])])
531
532 if test "$cf_cv_header_stdbool_h" = 1
533 then    AC_MSG_RESULT(yes)
534 else    AC_MSG_RESULT(no)
535 fi
536
537 AC_MSG_CHECKING([for builtin bool type])
538
539 AC_CACHE_VAL(ifelse($1,,cf_cv_builtin_bool,[$1]),[
540         AC_TRY_COMPILE([
541 #include <stdio.h>
542 #include <sys/types.h>
543 ],[bool x = false],
544                 [ifelse($1,,cf_cv_builtin_bool,[$1])=1],
545                 [ifelse($1,,cf_cv_builtin_bool,[$1])=0])
546         ])
547
548 if test "$ifelse($1,,cf_cv_builtin_bool,[$1])" = 1
549 then    AC_MSG_RESULT(yes)
550 else    AC_MSG_RESULT(no)
551 fi
552 ])dnl
553 dnl ---------------------------------------------------------------------------
554 dnl CF_BOOL_SIZE version: 14 updated: 2015/04/17 21:13:04
555 dnl ------------
556 dnl Test for the size of 'bool' in the configured C++ compiler (e.g., a type).
557 dnl Don't bother looking for bool.h, since it's been deprecated.
558 dnl
559 dnl If the current compiler is C rather than C++, we get the bool definition
560 dnl from <stdbool.h>.
561 AC_DEFUN([CF_BOOL_SIZE],
562 [
563 AC_MSG_CHECKING([for size of bool])
564 AC_CACHE_VAL(cf_cv_type_of_bool,[
565         rm -f cf_test.out
566         AC_TRY_RUN([
567 #include <stdlib.h>
568 #include <stdio.h>
569
570 #if defined(__cplusplus)
571
572 #ifdef HAVE_GXX_BUILTIN_H
573 #include <g++/builtin.h>
574 #elif HAVE_GPP_BUILTIN_H
575 #include <gpp/builtin.h>
576 #elif HAVE_BUILTIN_H
577 #include <builtin.h>
578 #endif
579
580 #else
581
582 #if $cf_cv_header_stdbool_h
583 #include <stdbool.h>
584 #endif
585
586 #endif
587
588 int main()
589 {
590         FILE *fp = fopen("cf_test.out", "w");
591         if (fp != 0) {
592                 bool x = true;
593                 if ((bool)(-x) >= 0)
594                         fputs("unsigned ", fp);
595                 if (sizeof(x) == sizeof(int))       fputs("int",  fp);
596                 else if (sizeof(x) == sizeof(char)) fputs("char", fp);
597                 else if (sizeof(x) == sizeof(short))fputs("short",fp);
598                 else if (sizeof(x) == sizeof(long)) fputs("long", fp);
599                 fclose(fp);
600         }
601         ${cf_cv_main_return:-return}(0);
602 }
603                 ],
604                 [cf_cv_type_of_bool=`cat cf_test.out`
605                  if test -z "$cf_cv_type_of_bool"; then
606                    cf_cv_type_of_bool=unknown
607                  fi],
608                 [cf_cv_type_of_bool=unknown],
609                 [cf_cv_type_of_bool=unknown])
610         ])
611         rm -f cf_test.out
612 AC_MSG_RESULT($cf_cv_type_of_bool)
613 if test "$cf_cv_type_of_bool" = unknown ; then
614         case .$NCURSES_BOOL in
615         (.auto|.) NCURSES_BOOL=unsigned;;
616         esac
617         AC_MSG_WARN(Assuming $NCURSES_BOOL for type of bool)
618         cf_cv_type_of_bool=$NCURSES_BOOL
619 fi
620 ])dnl
621 dnl ---------------------------------------------------------------------------
622 dnl CF_BUILD_CC version: 7 updated: 2012/10/06 15:31:55
623 dnl -----------
624 dnl If we're cross-compiling, allow the user to override the tools and their
625 dnl options.  The configure script is oriented toward identifying the host
626 dnl compiler, etc., but we need a build compiler to generate parts of the
627 dnl source.
628 dnl
629 dnl $1 = default for $CPPFLAGS
630 dnl $2 = default for $LIBS
631 AC_DEFUN([CF_BUILD_CC],[
632 CF_ACVERSION_CHECK(2.52,,
633         [AC_REQUIRE([CF_PROG_EXT])])
634 if test "$cross_compiling" = yes ; then
635
636         # defaults that we might want to override
637         : ${BUILD_CFLAGS:=''}
638         : ${BUILD_CPPFLAGS:='ifelse([$1],,,[$1])'}
639         : ${BUILD_LDFLAGS:=''}
640         : ${BUILD_LIBS:='ifelse([$2],,,[$2])'}
641         : ${BUILD_EXEEXT:='$x'}
642         : ${BUILD_OBJEXT:='o'}
643
644         AC_ARG_WITH(build-cc,
645                 [  --with-build-cc=XXX     the build C compiler ($BUILD_CC)],
646                 [BUILD_CC="$withval"],
647                 [AC_CHECK_PROGS(BUILD_CC, gcc cc cl)])
648         AC_MSG_CHECKING(for native build C compiler)
649         AC_MSG_RESULT($BUILD_CC)
650
651         AC_MSG_CHECKING(for native build C preprocessor)
652         AC_ARG_WITH(build-cpp,
653                 [  --with-build-cpp=XXX    the build C preprocessor ($BUILD_CPP)],
654                 [BUILD_CPP="$withval"],
655                 [BUILD_CPP='${BUILD_CC} -E'])
656         AC_MSG_RESULT($BUILD_CPP)
657
658         AC_MSG_CHECKING(for native build C flags)
659         AC_ARG_WITH(build-cflags,
660                 [  --with-build-cflags=XXX the build C compiler-flags ($BUILD_CFLAGS)],
661                 [BUILD_CFLAGS="$withval"])
662         AC_MSG_RESULT($BUILD_CFLAGS)
663
664         AC_MSG_CHECKING(for native build C preprocessor-flags)
665         AC_ARG_WITH(build-cppflags,
666                 [  --with-build-cppflags=XXX the build C preprocessor-flags ($BUILD_CPPFLAGS)],
667                 [BUILD_CPPFLAGS="$withval"])
668         AC_MSG_RESULT($BUILD_CPPFLAGS)
669
670         AC_MSG_CHECKING(for native build linker-flags)
671         AC_ARG_WITH(build-ldflags,
672                 [  --with-build-ldflags=XXX the build linker-flags ($BUILD_LDFLAGS)],
673                 [BUILD_LDFLAGS="$withval"])
674         AC_MSG_RESULT($BUILD_LDFLAGS)
675
676         AC_MSG_CHECKING(for native build linker-libraries)
677         AC_ARG_WITH(build-libs,
678                 [  --with-build-libs=XXX   the build libraries (${BUILD_LIBS})],
679                 [BUILD_LIBS="$withval"])
680         AC_MSG_RESULT($BUILD_LIBS)
681
682         # this assumes we're on Unix.
683         BUILD_EXEEXT=
684         BUILD_OBJEXT=o
685
686         : ${BUILD_CC:='${CC}'}
687
688         if ( test "$BUILD_CC" = "$CC" || test "$BUILD_CC" = '${CC}' ) ; then
689                 AC_MSG_ERROR([Cross-build requires two compilers.
690 Use --with-build-cc to specify the native compiler.])
691         fi
692
693 else
694         : ${BUILD_CC:='${CC}'}
695         : ${BUILD_CPP:='${CPP}'}
696         : ${BUILD_CFLAGS:='${CFLAGS}'}
697         : ${BUILD_CPPFLAGS:='${CPPFLAGS}'}
698         : ${BUILD_LDFLAGS:='${LDFLAGS}'}
699         : ${BUILD_LIBS:='${LIBS}'}
700         : ${BUILD_EXEEXT:='$x'}
701         : ${BUILD_OBJEXT:='o'}
702 fi
703
704 AC_SUBST(BUILD_CC)
705 AC_SUBST(BUILD_CPP)
706 AC_SUBST(BUILD_CFLAGS)
707 AC_SUBST(BUILD_CPPFLAGS)
708 AC_SUBST(BUILD_LDFLAGS)
709 AC_SUBST(BUILD_LIBS)
710 AC_SUBST(BUILD_EXEEXT)
711 AC_SUBST(BUILD_OBJEXT)
712 ])dnl
713 dnl ---------------------------------------------------------------------------
714 dnl CF_CC_ENV_FLAGS version: 6 updated: 2016/08/29 20:57:00
715 dnl ---------------
716 dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
717 dnl into CC.  This will not help with broken scripts that wrap the compiler
718 dnl with options, but eliminates a more common category of user confusion.
719 dnl
720 dnl In particular, it addresses the problem of being able to run the C
721 dnl preprocessor in a consistent manner.
722 dnl
723 dnl Caveat: this also disallows blanks in the pathname for the compiler, but
724 dnl the nuisance of having inconsistent settings for compiler and preprocessor
725 dnl outweighs that limitation.
726 AC_DEFUN([CF_CC_ENV_FLAGS],
727 [
728 # This should have been defined by AC_PROG_CC
729 : ${CC:=cc}
730
731 AC_MSG_CHECKING(\$CC variable)
732 case "$CC" in
733 (*[[\ \ ]]-*)
734         AC_MSG_RESULT(broken)
735         AC_MSG_WARN(your environment misuses the CC variable to hold CFLAGS/CPPFLAGS options)
736         # humor him...
737         cf_flags=`echo "$CC" | sed -e 's/^.*[[  ]]\(-[[^        ]]\)/\1/'`
738         CC=`echo "$CC " | sed -e 's/[[  ]]-[[^  ]].*$//' -e 's/[[       ]]*$//'`
739         for cf_arg in $cf_flags
740         do
741                 case "x$cf_arg" in
742                 (x-[[IUDfgOW]]*)
743                         CF_ADD_CFLAGS($cf_flags)
744                         ;;
745                 (*)
746                         CC="$CC $cf_arg"
747                         ;;
748                 esac
749         done
750         CF_VERBOSE(resulting CC: '$CC')
751         CF_VERBOSE(resulting CFLAGS: '$CFLAGS')
752         CF_VERBOSE(resulting CPPFLAGS: '$CPPFLAGS')
753         ;;
754 (*)
755         AC_MSG_RESULT(ok)
756         ;;
757 esac
758 ])dnl
759 dnl ---------------------------------------------------------------------------
760 dnl CF_CFG_DEFAULTS version: 11 updated: 2015/04/17 21:13:04
761 dnl ---------------
762 dnl Determine the default configuration into which we'll install ncurses.  This
763 dnl can be overridden by the user's command-line options.  There's two items to
764 dnl look for:
765 dnl     1. the prefix (e.g., /usr)
766 dnl     2. the header files (e.g., /usr/include/ncurses)
767 dnl We'll look for a previous installation of ncurses and use the same defaults.
768 dnl
769 dnl We don't use AC_PREFIX_DEFAULT, because it gets evaluated too soon, and
770 dnl we don't use AC_PREFIX_PROGRAM, because we cannot distinguish ncurses's
771 dnl programs from a vendor's.
772 AC_DEFUN([CF_CFG_DEFAULTS],
773 [
774 AC_MSG_CHECKING(for prefix)
775 if test "x$prefix" = "xNONE" ; then
776         case "$cf_cv_system_name" in
777                 # non-vendor systems don't have a conflict
778         (openbsd*|freebsd*|mirbsd*|linux*|cygwin*|msys*|k*bsd*-gnu|mingw*)
779                 prefix=/usr
780                 ;;
781         (*)     prefix=$ac_default_prefix
782                 ;;
783         esac
784 fi
785 AC_MSG_RESULT($prefix)
786
787 if test "x$prefix" = "xNONE" ; then
788 AC_MSG_CHECKING(for default include-directory)
789 test -n "$verbose" && echo 1>&AC_FD_MSG
790 for cf_symbol in \
791         $includedir \
792         $includedir/ncurses \
793         $prefix/include \
794         $prefix/include/ncurses \
795         /usr/local/include \
796         /usr/local/include/ncurses \
797         /usr/include \
798         /usr/include/ncurses
799 do
800         cf_dir=`eval echo $cf_symbol`
801         if test -f $cf_dir/curses.h ; then
802         if ( fgrep NCURSES_VERSION $cf_dir/curses.h 2>&1 >/dev/null ) ; then
803                 includedir="$cf_symbol"
804                 test -n "$verbose"  && echo $ac_n "     found " 1>&AC_FD_MSG
805                 break
806         fi
807         fi
808         test -n "$verbose"  && echo "   tested $cf_dir" 1>&AC_FD_MSG
809 done
810 AC_MSG_RESULT($includedir)
811 fi
812 ])dnl
813 dnl ---------------------------------------------------------------------------
814 dnl CF_CGETENT version: 5 updated: 2012/10/06 17:56:13
815 dnl ----------
816 dnl Check if the terminal-capability database functions are available.  If not,
817 dnl ncurses has a much-reduced version.
818 AC_DEFUN([CF_CGETENT],[
819 AC_CACHE_CHECK(for terminal-capability database functions,cf_cv_cgetent,[
820 AC_TRY_LINK([
821 #include <stdlib.h>],[
822         char temp[128];
823         char *buf = temp;
824         char *db_array = temp;
825         cgetent(&buf, &db_array, "vt100");
826         cgetcap(buf, "tc", '=');
827         cgetmatch(buf, "tc");
828         ],
829         [cf_cv_cgetent=yes],
830         [cf_cv_cgetent=no])
831 ])
832
833 if test "$cf_cv_cgetent" = yes
834 then
835         AC_DEFINE(HAVE_BSD_CGETENT,1,[Define to 1 if we have BSD cgetent])
836 AC_CACHE_CHECK(if cgetent uses const parameter,cf_cv_cgetent_const,[
837 AC_TRY_LINK([
838 #include <stdlib.h>],[
839         char temp[128];
840         char *buf = temp;
841 #ifndef _NETBSD_SOURCE                  /* given, since April 2004 in stdlib.h */
842         const char *db_array = temp;
843         cgetent(&buf, &db_array, "vt100");
844 #endif
845         cgetcap(buf, "tc", '=');
846         cgetmatch(buf, "tc");
847         ],
848         [cf_cv_cgetent_const=yes],
849         [cf_cv_cgetent_const=no])
850 ])
851         if test "$cf_cv_cgetent_const" = yes
852         then
853                 AC_DEFINE_UNQUOTED(CGETENT_CONST,const,[Define to const if needed for some BSD cgetent variations])
854         fi
855 fi
856 ])dnl
857 dnl ---------------------------------------------------------------------------
858 dnl CF_CHECK_CACHE version: 12 updated: 2012/10/02 20:55:03
859 dnl --------------
860 dnl Check if we're accidentally using a cache from a different machine.
861 dnl Derive the system name, as a check for reusing the autoconf cache.
862 dnl
863 dnl If we've packaged config.guess and config.sub, run that (since it does a
864 dnl better job than uname).  Normally we'll use AC_CANONICAL_HOST, but allow
865 dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
866 dnl which is useful in cross-compiles.
867 dnl
868 dnl Note: we would use $ac_config_sub, but that is one of the places where
869 dnl autoconf 2.5x broke compatibility with autoconf 2.13
870 AC_DEFUN([CF_CHECK_CACHE],
871 [
872 if test -f $srcdir/config.guess || test -f $ac_aux_dir/config.guess ; then
873         ifelse([$1],,[AC_CANONICAL_HOST],[$1])
874         system_name="$host_os"
875 else
876         system_name="`(uname -s -r) 2>/dev/null`"
877         if test -z "$system_name" ; then
878                 system_name="`(hostname) 2>/dev/null`"
879         fi
880 fi
881 test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name",[Define to the system name.])
882 AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
883
884 test -z "$system_name" && system_name="$cf_cv_system_name"
885 test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)
886
887 if test ".$system_name" != ".$cf_cv_system_name" ; then
888         AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
889         AC_MSG_ERROR("Please remove config.cache and try again.")
890 fi
891 ])dnl
892 dnl ---------------------------------------------------------------------------
893 dnl CF_CHECK_ERRNO version: 12 updated: 2015/04/18 08:56:57
894 dnl --------------
895 dnl Check for data that is usually declared in <stdio.h> or <errno.h>, e.g.,
896 dnl the 'errno' variable.  Define a DECL_xxx symbol if we must declare it
897 dnl ourselves.
898 dnl
899 dnl $1 = the name to check
900 dnl $2 = the assumed type
901 AC_DEFUN([CF_CHECK_ERRNO],
902 [
903 AC_CACHE_CHECK(if external $1 is declared, cf_cv_dcl_$1,[
904         AC_TRY_COMPILE([
905 #ifdef HAVE_STDLIB_H
906 #include <stdlib.h>
907 #endif
908 #include <stdio.h>
909 #include <sys/types.h>
910 #include <errno.h> ],
911         ifelse([$2],,int,[$2]) x = (ifelse([$2],,int,[$2])) $1,
912         [cf_cv_dcl_$1=yes],
913         [cf_cv_dcl_$1=no])
914 ])
915
916 if test "$cf_cv_dcl_$1" = no ; then
917         CF_UPPER(cf_result,decl_$1)
918         AC_DEFINE_UNQUOTED($cf_result)
919 fi
920
921 # It's possible (for near-UNIX clones) that the data doesn't exist
922 CF_CHECK_EXTERN_DATA($1,ifelse([$2],,int,[$2]))
923 ])dnl
924 dnl ---------------------------------------------------------------------------
925 dnl CF_CHECK_EXTERN_DATA version: 4 updated: 2015/04/18 08:56:57
926 dnl --------------------
927 dnl Check for existence of external data in the current set of libraries.  If
928 dnl we can modify it, it's real enough.
929 dnl $1 = the name to check
930 dnl $2 = its type
931 AC_DEFUN([CF_CHECK_EXTERN_DATA],
932 [
933 AC_CACHE_CHECK(if external $1 exists, cf_cv_have_$1,[
934         AC_TRY_LINK([
935 #undef $1
936 extern $2 $1;
937 ],
938         [$1 = 2],
939         [cf_cv_have_$1=yes],
940         [cf_cv_have_$1=no])
941 ])
942
943 if test "$cf_cv_have_$1" = yes ; then
944         CF_UPPER(cf_result,have_$1)
945         AC_DEFINE_UNQUOTED($cf_result)
946 fi
947
948 ])dnl
949 dnl ---------------------------------------------------------------------------
950 dnl CF_CHECK_GPM_WGETCH version: 2 updated: 2010/08/14 18:25:37
951 dnl -------------------
952 dnl Check if GPM is already linked with curses.  If so - and if the linkage
953 dnl is not "weak" - warn about this because it can create problems linking
954 dnl applications with ncurses.
955 AC_DEFUN([CF_CHECK_GPM_WGETCH],[
956 AC_CHECK_LIB(gpm,Gpm_Wgetch,[
957
958 AC_CACHE_CHECK(if GPM is weakly bound to curses library, cf_cv_check_gpm_wgetch,[
959 cf_cv_check_gpm_wgetch=unknown
960 if test "$cross_compiling" != yes ; then
961
962 cat >conftest.$ac_ext <<CF_EOF
963 #include <gpm.h>
964 int main()
965 {
966         Gpm_Wgetch();
967         ${cf_cv_main_return:-return}(0);
968 }
969 CF_EOF
970
971         cf_save_LIBS="$LIBS"
972         # This only works if we can look at the symbol table.  If a shared
973         # library is stripped for install, we cannot use that.  So we're forced
974         # to rely on the static library, noting that some packagers may not
975         # include it.
976         LIBS="-static -lgpm -dynamic $LIBS"
977         if AC_TRY_EVAL(ac_compile) ; then
978                 if AC_TRY_EVAL(ac_link) ; then
979                         cf_cv_check_gpm_wgetch=`nm conftest$ac_exeext | egrep '\<wgetch\>' | egrep '\<[[vVwW]]\>'`
980                         test -n "$cf_cv_check_gpm_wgetch" && cf_cv_check_gpm_wgetch=yes
981                         test -z "$cf_cv_check_gpm_wgetch" && cf_cv_check_gpm_wgetch=no
982                 fi
983         fi
984         rm -rf conftest*
985         LIBS="$cf_save_LIBS"
986 fi
987 ])
988
989 if test "$cf_cv_check_gpm_wgetch" != yes ; then
990         AC_MSG_WARN(GPM library is already linked with curses - read the FAQ)
991 fi
992 ])])dnl
993 dnl ---------------------------------------------------------------------------
994 dnl CF_CHECK_LIBTOOL_VERSION version: 1 updated: 2013/04/06 18:03:09
995 dnl ------------------------
996 dnl Show the version of libtool
997 dnl
998 dnl Save the version in a cache variable - this is not entirely a good thing,
999 dnl but the version string from libtool is very ugly, and for bug reports it
1000 dnl might be useful to have the original string.
1001 AC_DEFUN([CF_CHECK_LIBTOOL_VERSION],[
1002 if test -n "$LIBTOOL" && test "$LIBTOOL" != none
1003 then
1004         AC_MSG_CHECKING(version of $LIBTOOL)
1005         CF_LIBTOOL_VERSION
1006         AC_MSG_RESULT($cf_cv_libtool_version)
1007         if test -z "$cf_cv_libtool_version" ; then
1008                 AC_MSG_ERROR(This is not GNU libtool)
1009         fi
1010 else
1011         AC_MSG_ERROR(GNU libtool has not been found)
1012 fi
1013 ])dnl
1014 dnl ---------------------------------------------------------------------------
1015 dnl CF_CHECK_WCHAR_H version: 1 updated: 2011/10/29 15:01:05
1016 dnl ----------------
1017 dnl Check if wchar.h can be used, i.e., without defining _XOPEN_SOURCE_EXTENDED
1018 AC_DEFUN([CF_CHECK_WCHAR_H],[
1019 AC_CACHE_CHECK(if wchar.h can be used as is,cf_cv_wchar_h_okay,[
1020 AC_TRY_COMPILE(
1021 [
1022 #include <stdlib.h>
1023 #include <wchar.h>
1024 ],[
1025         wint_t foo = 0;
1026         int bar = iswpunct(foo)],
1027         [cf_cv_wchar_h_okay=yes],
1028         [cf_cv_wchar_h_okay=no])])
1029
1030 if test $cf_cv_wchar_h_okay = no
1031 then
1032         CF_PREDEFINE(_XOPEN_SOURCE_EXTENDED)
1033 fi
1034 ])dnl
1035 dnl ---------------------------------------------------------------------------
1036 dnl CF_CHECK_WCWIDTH_GRAPHICS version: 1 updated: 2015/12/19 17:47:56
1037 dnl -------------------------
1038 dnl Most "modern" terminal emulators are based to some degree on VT100, and
1039 dnl should support line-drawing.  Even with Unicode.  There is a problem.
1040 dnl
1041 dnl While most of the VT100 graphics characters were incorporated into Unicode,
1042 dnl all of those were combined into a page of useful graphics characters.
1043 dnl
1044 dnl So far, so good.
1045 dnl
1046 dnl However, while they are useful, there are other considerations.  CJK
1047 dnl is (because of poor device resolution) often rendered as double-width
1048 dnl characters.  So... for these generally-useful characters, what should
1049 dnl be the width (to make them consistent with adjacent characters)?
1050 dnl
1051 dnl The obvious choice would have been to make this locale-dependent, and use
1052 dnl wcwidth() to tell applications what the actual width is.  That was too
1053 dnl obvious.  Instead, we have a slew of "ambiguous-width" characters.
1054 dnl See for example
1055 dnl             http://www.unicode.org/reports/tr11/tr11-29.html
1056 dnl             http://www.cl.cam.ac.uk/~mgk25/ucs/scw-proposal.html
1057 dnl
1058 dnl The EastAsianWidth-6.2.0.txt file from the Unicode organization lists
1059 dnl more than 22,000 characters, with 1281 of those as ambiguous-width.  For
1060 dnl instance, it lists half (44/96) of the Latin-1 characters as
1061 dnl ambiguous-width.  Also, all of the box-characters at 0x2500 are ambiguous.
1062 dnl
1063 dnl What this means for the implementor is that on some systems wcwidth() can
1064 dnl give bad advice.  On Solaris, some of the ambiguous widths are returned as
1065 dnl 1 (the Latin-1 characters), while others are returned as 2 (line-drawing
1066 dnl characters).  These do not necessarily match the behavior of the terminal
1067 dnl emulator.  xterm, for instance, does an optional startup check to find if
1068 dnl this problem (or similar) exists with the system's locale tables, rejecting
1069 dnl them if they are too unreliable.
1070 AC_DEFUN([CF_CHECK_WCWIDTH_GRAPHICS],[
1071 AC_CACHE_CHECK(if wcwidth agrees graphics are single-width, cf_cv_wcwidth_graphics,[
1072 cat >conftest.in <<CF_EOF
1073 -       VT100 symbols
1074 0x250c  upper left corner
1075 0x2514  lower left corner
1076 0x2510  upper right corner
1077 0x2518  lower right corner
1078 0x251c  tee pointing left
1079 0x2524  tee pointing right
1080 0x2534  tee pointing up
1081 0x252c  tee pointing down
1082 0x2500  horizontal line
1083 0x2502  vertical line
1084 0x253c  large plus or crossover
1085 0x23ba  scan line 1
1086 0x23bd  scan line 9
1087 0x25c6  diamond
1088 0x2592  checker board (stipple)
1089 0x00b0  degree symbol
1090 0x00b1  plus/minus
1091 0x00b7  bullet
1092 -       Teletype 5410v1 symbols
1093 0x2190  arrow pointing left
1094 0x2192  arrow pointing right
1095 0x2193  arrow pointing down
1096 0x2191  arrow pointing up
1097 0x2592  board of squares
1098 0x2603  lantern symbol
1099 0x25ae  solid square block
1100 -       these defaults were invented for ncurses
1101 0x23bb  scan line 3
1102 0x23bc  scan line 7
1103 0x2264  less-than-or-equal-to
1104 0x2265  greater-than-or-equal-to
1105 0x03c0  greek pi
1106 0x2260  not-equal
1107 0x00a3  pound-sterling symbol
1108 -       thick-line-drawing
1109 0x250f  upper left corner
1110 0x2517  lower left corner
1111 0x2513  upper right corner
1112 0x251b  lower right corner
1113 0x2523  tee pointing left
1114 0x252b  tee pointing right
1115 0x253b  tee pointing up
1116 0x2533  tee pointing down
1117 0x2501  horizontal line
1118 0x2503  vertical line
1119 0x254b  large plus or crossover
1120 -       double-line-drawing
1121 0x2554  upper left corner
1122 0x255a  lower left corner
1123 0x2557  upper right corner
1124 0x255d  lower right corner
1125 0x2563  tee pointing left
1126 0x2560  tee pointing right
1127 0x2569  tee pointing up
1128 0x2566  tee pointing down
1129 0x2550  horizontal line
1130 0x2551  vertical line
1131 0x256c  large plus or crossover
1132 CF_EOF
1133 AC_TRY_RUN([
1134 #include <locale.h>
1135 #include <stdio.h>
1136 #include <wchar.h>
1137
1138 #define MY_LEN 80
1139
1140 int
1141 main(void)
1142 {
1143         FILE *fp;
1144         int value;
1145         char buffer[MY_LEN + 1];
1146         char notes[MY_LEN + 1];
1147         int totals = 0;
1148         int passed = 0;
1149
1150         if (setlocale(LC_ALL, "en_US.UTF8") ||
1151                 setlocale(LC_ALL, "en_US.UTF-8") ||
1152                 setlocale(LC_ALL, "en_US.utf8") ||
1153                 setlocale(LC_ALL, "en_US.utf-8")) {
1154                 if ((fp = fopen("conftest.in", "r")) != 0) {
1155                         while (fgets(buffer, MY_LEN, fp) != 0) {
1156                                 if (*buffer == '-') {
1157                                         fprintf(stderr, "\t%s", buffer);
1158                                 } else if (sscanf(buffer, "%x %s", &value, notes) == 2) {
1159                                         ++totals;
1160                                         if (wcwidth(value) == 1)
1161                                                 ++passed;
1162                                         fprintf(stderr, "%d\t%s", wcwidth(value), buffer);
1163                                 } else {
1164                                         fprintf(stderr, "?\t%s", buffer);
1165                                 }
1166                         }
1167                 }
1168         }
1169         fprintf(stderr, "%d/%d passed wcwidth/graphics check\n", passed, totals);
1170         return (totals == passed) ? 0 : 1;
1171 }
1172 ],
1173 [cf_cv_wcwidth_graphics=yes],
1174 [cf_cv_wcwidth_graphics=no],
1175 [cf_cv_wcwidth_graphics=unknown])
1176 ])
1177 ])dnl
1178 dnl ---------------------------------------------------------------------------
1179 dnl CF_CLANG_COMPILER version: 2 updated: 2013/11/19 19:23:35
1180 dnl -----------------
1181 dnl Check if the given compiler is really clang.  clang's C driver defines
1182 dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
1183 dnl not ignore some gcc options.
1184 dnl
1185 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
1186 dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
1187 dnl the wrappers for gcc and g++ warnings.
1188 dnl
1189 dnl $1 = GCC (default) or GXX
1190 dnl $2 = CLANG_COMPILER (default)
1191 dnl $3 = CFLAGS (default) or CXXFLAGS
1192 AC_DEFUN([CF_CLANG_COMPILER],[
1193 ifelse([$2],,CLANG_COMPILER,[$2])=no
1194
1195 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
1196         AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
1197         cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
1198         ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -Qunused-arguments"
1199         AC_TRY_COMPILE([],[
1200 #ifdef __clang__
1201 #else
1202 make an error
1203 #endif
1204 ],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
1205 cf_save_CFLAGS="$cf_save_CFLAGS -Qunused-arguments"
1206 ],[])
1207         ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
1208         AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
1209 fi
1210 ])
1211 dnl ---------------------------------------------------------------------------
1212 dnl CF_CPP_PARAM_INIT version: 6 updated: 2012/10/06 17:56:13
1213 dnl -----------------
1214 dnl Check if the C++ compiler accepts duplicate parameter initialization.  This
1215 dnl is a late feature for the standard and is not in some recent compilers
1216 dnl (1999/9/11).
1217 AC_DEFUN([CF_CPP_PARAM_INIT],
1218 [
1219 if test -n "$CXX"; then
1220 AC_CACHE_CHECK(if $CXX accepts parameter initialization,cf_cv_cpp_param_init,[
1221         AC_LANG_SAVE
1222         AC_LANG_CPLUSPLUS
1223         AC_TRY_RUN([
1224 class TEST {
1225 private:
1226         int value;
1227 public:
1228         TEST(int x = 1);
1229         ~TEST();
1230 };
1231
1232 TEST::TEST(int x = 1)   // some compilers do not like second initializer
1233 {
1234         value = x;
1235 }
1236 int main() { }
1237 ],
1238         [cf_cv_cpp_param_init=yes],
1239         [cf_cv_cpp_param_init=no],
1240         [cf_cv_cpp_param_init=unknown])
1241         AC_LANG_RESTORE
1242 ])
1243 fi
1244 test "$cf_cv_cpp_param_init" = yes && AC_DEFINE(CPP_HAS_PARAM_INIT,1,[Define to 1 if C++ has parameter initialization])
1245 ])dnl
1246 dnl ---------------------------------------------------------------------------
1247 dnl CF_CPP_STATIC_CAST version: 3 updated: 2013/04/13 18:03:21
1248 dnl ------------------
1249 dnl Check if the C++ compiler accepts static_cast in generics.  This appears to
1250 dnl not be supported in g++ before 3.0
1251 AC_DEFUN([CF_CPP_STATIC_CAST],
1252 [
1253 if test -n "$CXX"; then
1254
1255 AC_CACHE_CHECK(if $CXX accepts static_cast,cf_cv_cpp_static_cast,[
1256         AC_LANG_SAVE
1257         AC_LANG_CPLUSPLUS
1258
1259         AC_TRY_COMPILE([
1260 class NCursesPanel
1261 {
1262 public:
1263   NCursesPanel(int nlines,
1264                int ncols,
1265                int begin_y = 0,
1266                int begin_x = 0)
1267   {
1268   }
1269   NCursesPanel();
1270   ~NCursesPanel();
1271 };
1272
1273 template<class T> class NCursesUserPanel : public NCursesPanel
1274 {
1275 public:
1276   NCursesUserPanel (int nlines,
1277                     int ncols,
1278                     int begin_y = 0,
1279                     int begin_x = 0,
1280                     const T* p_UserData = static_cast<T*>(0))
1281     : NCursesPanel (nlines, ncols, begin_y, begin_x)
1282   {
1283   };
1284   NCursesUserPanel(const T* p_UserData = static_cast<T*>(0)) : NCursesPanel()
1285   {
1286   };
1287
1288   virtual ~NCursesUserPanel() {};
1289 };
1290 ],[
1291         const char* p_UserData = static_cast<char*>(0)],
1292         [cf_cv_cpp_static_cast=yes],
1293         [cf_cv_cpp_static_cast=no])
1294
1295         AC_LANG_RESTORE
1296 ])
1297
1298 fi
1299
1300 test "$cf_cv_cpp_static_cast" = yes && AC_DEFINE(CPP_HAS_STATIC_CAST,1,[Define to 1 if C++ has static_cast])
1301 ])dnl
1302 dnl ---------------------------------------------------------------------------
1303 dnl CF_CXX_AR_FLAGS version: 2 updated: 2015/04/17 21:13:04
1304 dnl ---------------
1305 dnl Setup special archiver flags for given compilers.
1306 AC_DEFUN([CF_CXX_AR_FLAGS],[
1307         CXX_AR='$(AR)'
1308         CXX_ARFLAGS='$(ARFLAGS)'
1309         case $cf_cv_system_name in
1310         (irix*)
1311             if test "$GXX" != yes ; then
1312                 CXX_AR='$(CXX)'
1313                 CXX_ARFLAGS='-ar -o'
1314             fi
1315             ;;
1316         (sco3.2v5*)
1317             CXXLDFLAGS="-u main"
1318             ;;
1319         (solaris2*)
1320             if test "$GXX" != yes ; then
1321                 CXX_AR='$(CXX)'
1322                 CXX_ARFLAGS='-xar -o'
1323             fi
1324             ;;
1325         esac
1326         AC_SUBST(CXXLDFLAGS)
1327         AC_SUBST(CXX_AR)
1328         AC_SUBST(CXX_ARFLAGS)
1329 ])dnl
1330 dnl ---------------------------------------------------------------------------
1331 dnl CF_CXX_IOSTREAM_NAMESPACE version: 2 updated: 2012/10/06 17:56:13
1332 dnl -------------------------
1333 dnl For c++, check if iostream uses "std::" namespace.
1334 AC_DEFUN([CF_CXX_IOSTREAM_NAMESPACE],[
1335 AC_CHECK_HEADERS(iostream)
1336 if test x"$ac_cv_header_iostream" = xyes ; then
1337         AC_MSG_CHECKING(if iostream uses std-namespace)
1338         AC_TRY_COMPILE([
1339 #include <iostream>
1340 using std::endl;
1341 using std::cerr;],[
1342 cerr << "testing" << endl;
1343 ],[cf_iostream_namespace=yes],[cf_iostream_namespace=no])
1344         AC_MSG_RESULT($cf_iostream_namespace)
1345         if test "$cf_iostream_namespace" = yes ; then
1346                 AC_DEFINE(IOSTREAM_NAMESPACE,1,[Define to 1 if C++ has namespace iostream])
1347         fi
1348 fi
1349 ])dnl
1350 dnl ---------------------------------------------------------------------------
1351 dnl CF_C_INLINE version: 5 updated: 2015/04/18 08:56:57
1352 dnl -----------
1353 dnl Check if the C compiler supports "inline".
1354 dnl $1 is the name of a shell variable to set if inline is supported
1355 dnl $2 is the threshold for gcc 4.x's option controlling maximum inline size
1356 AC_DEFUN([CF_C_INLINE],[
1357 AC_C_INLINE
1358 $1=
1359 if test "$ac_cv_c_inline" != no ; then
1360         $1=inline
1361         if test "$INTEL_COMPILER" = yes
1362         then
1363                 :
1364         elif test "$CLANG_COMPILER" = yes
1365         then
1366                 :
1367         elif test "$GCC" = yes
1368         then
1369                 AC_CACHE_CHECK(if $CC supports options to tune inlining,cf_cv_gcc_inline,[
1370                 cf_save_CFLAGS=$CFLAGS
1371                 CFLAGS="$CFLAGS --param max-inline-insns-single=$2"
1372                 AC_TRY_COMPILE([inline int foo(void) { return 1; }],
1373                 [${cf_cv_main_return:-return} foo()],
1374                 [cf_cv_gcc_inline=yes],
1375                 [cf_cv_gcc_inline=no])
1376                 CFLAGS=$cf_save_CFLAGS
1377                 ])
1378                 if test "$cf_cv_gcc_inline" = yes ; then
1379                         CF_ADD_CFLAGS([--param max-inline-insns-single=$2])
1380                 fi
1381         fi
1382 fi
1383 AC_SUBST($1)
1384 ])dnl
1385 dnl ---------------------------------------------------------------------------
1386 dnl CF_DIRNAME version: 4 updated: 2002/12/21 19:25:52
1387 dnl ----------
1388 dnl "dirname" is not portable, so we fake it with a shell script.
1389 AC_DEFUN([CF_DIRNAME],[$1=`echo $2 | sed -e 's%/[[^/]]*$%%'`])dnl
1390 dnl ---------------------------------------------------------------------------
1391 dnl CF_DIRS_TO_MAKE version: 3 updated: 2002/02/23 20:38:31
1392 dnl ---------------
1393 AC_DEFUN([CF_DIRS_TO_MAKE],
1394 [
1395 DIRS_TO_MAKE="lib"
1396 for cf_item in $cf_list_models
1397 do
1398         CF_OBJ_SUBDIR($cf_item,cf_subdir)
1399         for cf_item2 in $DIRS_TO_MAKE
1400         do
1401                 test $cf_item2 = $cf_subdir && break
1402         done
1403         test ".$cf_item2" != ".$cf_subdir" && DIRS_TO_MAKE="$DIRS_TO_MAKE $cf_subdir"
1404 done
1405 for cf_dir in $DIRS_TO_MAKE
1406 do
1407         test ! -d $cf_dir && mkdir $cf_dir
1408 done
1409 AC_SUBST(DIRS_TO_MAKE)
1410 ])dnl
1411 dnl ---------------------------------------------------------------------------
1412 dnl CF_DISABLE_ECHO version: 13 updated: 2015/04/18 08:56:57
1413 dnl ---------------
1414 dnl You can always use "make -n" to see the actual options, but it's hard to
1415 dnl pick out/analyze warning messages when the compile-line is long.
1416 dnl
1417 dnl Sets:
1418 dnl     ECHO_LT - symbol to control if libtool is verbose
1419 dnl     ECHO_LD - symbol to prefix "cc -o" lines
1420 dnl     RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
1421 dnl     SHOW_CC - symbol to put before explicit "cc -c" lines
1422 dnl     ECHO_CC - symbol to put before any "cc" line
1423 dnl
1424 AC_DEFUN([CF_DISABLE_ECHO],[
1425 AC_MSG_CHECKING(if you want to see long compiling messages)
1426 CF_ARG_DISABLE(echo,
1427         [  --disable-echo          do not display "compiling" commands],
1428         [
1429         ECHO_LT='--silent'
1430         ECHO_LD='@echo linking [$]@;'
1431         RULE_CC='@echo compiling [$]<'
1432         SHOW_CC='@echo compiling [$]@'
1433         ECHO_CC='@'
1434 ],[
1435         ECHO_LT=''
1436         ECHO_LD=''
1437         RULE_CC=''
1438         SHOW_CC=''
1439         ECHO_CC=''
1440 ])
1441 AC_MSG_RESULT($enableval)
1442 AC_SUBST(ECHO_LT)
1443 AC_SUBST(ECHO_LD)
1444 AC_SUBST(RULE_CC)
1445 AC_SUBST(SHOW_CC)
1446 AC_SUBST(ECHO_CC)
1447 ])dnl
1448 dnl ---------------------------------------------------------------------------
1449 dnl CF_DISABLE_GNAT_PROJECTS version: 1 updated: 2014/06/01 11:34:00
1450 dnl ------------------------
1451 AC_DEFUN([CF_DISABLE_GNAT_PROJECTS],[
1452 AC_MSG_CHECKING(if we want to use GNAT projects)
1453 CF_ARG_DISABLE(gnat-projects,
1454         [  --disable-gnat-projects test: disable GNAT projects even if usable],
1455         [enable_gnat_projects=no],
1456         [enable_gnat_projects=yes])
1457 AC_MSG_RESULT($enable_gnat_projects)
1458 ])dnl
1459 dnl ---------------------------------------------------------------------------
1460 dnl CF_DISABLE_LEAKS version: 7 updated: 2012/10/02 20:55:03
1461 dnl ----------------
1462 dnl Combine no-leak checks with the libraries or tools that are used for the
1463 dnl checks.
1464 AC_DEFUN([CF_DISABLE_LEAKS],[
1465
1466 AC_REQUIRE([CF_WITH_DMALLOC])
1467 AC_REQUIRE([CF_WITH_DBMALLOC])
1468 AC_REQUIRE([CF_WITH_VALGRIND])
1469
1470 AC_MSG_CHECKING(if you want to perform memory-leak testing)
1471 AC_ARG_ENABLE(leaks,
1472         [  --disable-leaks         test: free permanent memory, analyze leaks],
1473         [if test "x$enableval" = xno; then with_no_leaks=yes; else with_no_leaks=no; fi],
1474         : ${with_no_leaks:=no})
1475 AC_MSG_RESULT($with_no_leaks)
1476
1477 if test "$with_no_leaks" = yes ; then
1478         AC_DEFINE(NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
1479         AC_DEFINE(YY_NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
1480 fi
1481 ])dnl
1482 dnl ---------------------------------------------------------------------------
1483 dnl CF_DISABLE_LIBTOOL_VERSION version: 3 updated: 2015/04/17 21:13:04
1484 dnl --------------------------
1485 dnl Check if we should use the libtool 1.5 feature "-version-number" instead of
1486 dnl the older "-version-info" feature.  The newer feature allows us to use
1487 dnl version numbering on shared libraries which make them compatible with
1488 dnl various systems.
1489 AC_DEFUN([CF_DISABLE_LIBTOOL_VERSION],
1490 [
1491 AC_MSG_CHECKING(if libtool -version-number should be used)
1492 CF_ARG_DISABLE(libtool-version,
1493         [  --disable-libtool-version  enable to use libtool's incompatible naming scheme],
1494         [cf_libtool_version=no],
1495         [cf_libtool_version=yes])
1496 AC_MSG_RESULT($cf_libtool_version)
1497
1498 if test "$cf_libtool_version" = yes ; then
1499         LIBTOOL_VERSION="-version-number"
1500 else
1501         LIBTOOL_VERSION="-version-info"
1502         case "x$VERSION" in
1503         (x)
1504                 AC_MSG_WARN(VERSION was not set)
1505                 ;;
1506         (x*.*.*)
1507                 ABI_VERSION="$VERSION"
1508                 CF_VERBOSE(ABI_VERSION: $ABI_VERSION)
1509                 ;;
1510         (x*:*:*)
1511                 ABI_VERSION=`echo "$VERSION" | sed -e 's/:/./g'`
1512                 CF_VERBOSE(ABI_VERSION: $ABI_VERSION)
1513                 ;;
1514         (*)
1515                 AC_MSG_WARN(unexpected VERSION value: $VERSION)
1516                 ;;
1517         esac
1518 fi
1519
1520 AC_SUBST(ABI_VERSION)
1521 AC_SUBST(LIBTOOL_VERSION)
1522 ])dnl
1523 dnl ---------------------------------------------------------------------------
1524 dnl CF_DISABLE_RPATH_HACK version: 2 updated: 2011/02/13 13:31:33
1525 dnl ---------------------
1526 dnl The rpath-hack makes it simpler to build programs, particularly with the
1527 dnl *BSD ports which may have essential libraries in unusual places.  But it
1528 dnl can interfere with building an executable for the base system.  Use this
1529 dnl option in that case.
1530 AC_DEFUN([CF_DISABLE_RPATH_HACK],
1531 [
1532 AC_MSG_CHECKING(if rpath-hack should be disabled)
1533 CF_ARG_DISABLE(rpath-hack,
1534         [  --disable-rpath-hack    don't add rpath options for additional libraries],
1535         [cf_disable_rpath_hack=yes],
1536         [cf_disable_rpath_hack=no])
1537 AC_MSG_RESULT($cf_disable_rpath_hack)
1538 if test "$cf_disable_rpath_hack" = no ; then
1539         CF_RPATH_HACK
1540 fi
1541 ])
1542 dnl ---------------------------------------------------------------------------
1543 dnl CF_ENABLE_PC_FILES version: 13 updated: 2015/11/01 05:27:39
1544 dnl ------------------
1545 dnl This is the "--enable-pc-files" option, which is available if there is a
1546 dnl pkg-config configuration on the local machine.
1547 AC_DEFUN([CF_ENABLE_PC_FILES],[
1548 AC_REQUIRE([CF_PKG_CONFIG])
1549 AC_REQUIRE([CF_WITH_PKG_CONFIG_LIBDIR])
1550
1551 if test "x$PKG_CONFIG" != xnone
1552 then
1553         AC_MSG_CHECKING(if we should install .pc files for $PKG_CONFIG)
1554 else
1555         AC_MSG_CHECKING(if we should install .pc files)
1556 fi
1557
1558 AC_ARG_ENABLE(pc-files,
1559         [  --enable-pc-files       generate and install .pc files for pkg-config],
1560         [enable_pc_files=$enableval],
1561         [enable_pc_files=no])
1562 AC_MSG_RESULT($enable_pc_files)
1563
1564 if test "x$enable_pc_files" != xno
1565 then
1566         MAKE_PC_FILES=
1567         case "x$PKG_CONFIG_LIBDIR" in
1568         (xno|xyes)
1569                 AC_MSG_WARN(no PKG_CONFIG_LIBDIR was found)
1570                 ;;
1571         (*)
1572                 CF_PATH_SYNTAX(PKG_CONFIG_LIBDIR)
1573                 ;;
1574         esac
1575 else
1576         MAKE_PC_FILES="#"
1577 fi
1578 AC_SUBST(MAKE_PC_FILES)
1579 ])dnl
1580 dnl ---------------------------------------------------------------------------
1581 dnl CF_ENABLE_RPATH version: 2 updated: 2010/03/27 18:39:42
1582 dnl ---------------
1583 dnl Check if the rpath option should be used, setting cache variable
1584 dnl cf_cv_enable_rpath if so.
1585 AC_DEFUN([CF_ENABLE_RPATH],
1586 [
1587 AC_MSG_CHECKING(if rpath option should be used)
1588 AC_ARG_ENABLE(rpath,
1589 [  --enable-rpath          use rpath option when generating shared libraries],
1590 [cf_cv_enable_rpath=$enableval],
1591 [cf_cv_enable_rpath=no])
1592 AC_MSG_RESULT($cf_cv_enable_rpath)
1593 ])dnl
1594 dnl ---------------------------------------------------------------------------
1595 dnl CF_ENABLE_STRING_HACKS version: 5 updated: 2016/10/08 17:34:11
1596 dnl ----------------------
1597 dnl On a few platforms, the compiler and/or loader nags with untruthful
1598 dnl comments stating that "most" uses of strcat/strcpy/sprintf are incorrect,
1599 dnl and implying that most uses of the recommended alternatives are correct.
1600 dnl
1601 dnl Factually speaking, no one has actually counted the number of uses of these
1602 dnl functions versus the total of incorrect uses.  Samples of a few thousand
1603 dnl instances are meaningless compared to the hundreds of millions of lines of
1604 dnl existing C code.
1605 dnl
1606 dnl strlcat/strlcpy are (as of 2012) non-standard, and are available on some
1607 dnl platforms, in implementations of varying quality.  Likewise, snprintf is
1608 dnl standard - but evolved through phases, and older implementations are likely
1609 dnl to yield surprising results, as documented in manpages on various systems.
1610 AC_DEFUN([CF_ENABLE_STRING_HACKS],
1611 [
1612 AC_MSG_CHECKING(if you want to work around bogus compiler/loader warnings)
1613 AC_ARG_ENABLE(string-hacks,
1614         [  --enable-string-hacks   work around bogus compiler/loader warnings],
1615         [with_string_hacks=$enableval],
1616         [with_string_hacks=no])
1617 AC_MSG_RESULT($with_string_hacks)
1618
1619 if test "x$with_string_hacks" = "xyes"; then
1620         AC_DEFINE(USE_STRING_HACKS,1,[Define to 1 to work around bogus compiler/loader warnings])
1621         AC_MSG_WARN(enabling string-hacks to work around bogus compiler/loader warnings)
1622         AC_CHECK_FUNC(strlcat,[
1623                 AC_DEFINE(HAVE_STRLCAT,1,[Define to 1 if we have strlcat function])
1624                 ],[
1625                 AC_CHECK_LIB(bsd,strlcat,[
1626                         CF_ADD_LIB(bsd)
1627                         AC_CHECK_HEADERS(bsd/string.h)
1628                         AC_DEFINE(HAVE_STRLCAT,1,[Define to 1 if we have strlcat function])
1629                         ])
1630                 ])
1631         AC_CHECK_FUNCS( strlcpy snprintf )
1632 fi
1633 ])dnl
1634 dnl ---------------------------------------------------------------------------
1635 dnl CF_ERRNO version: 5 updated: 1997/11/30 12:44:39
1636 dnl --------
1637 dnl Check if 'errno' is declared in <errno.h>
1638 AC_DEFUN([CF_ERRNO],
1639 [
1640 CF_CHECK_ERRNO(errno)
1641 ])dnl
1642 dnl ---------------------------------------------------------------------------
1643 dnl CF_ETIP_DEFINES version: 5 updated: 2012/02/18 17:51:07
1644 dnl ---------------
1645 dnl Test for conflicting definitions of exception in gcc 2.8.0, etc., between
1646 dnl math.h and builtin.h, only for ncurses
1647 AC_DEFUN([CF_ETIP_DEFINES],
1648 [
1649 AC_MSG_CHECKING(for special defines needed for etip.h)
1650 cf_save_CXXFLAGS="$CXXFLAGS"
1651 cf_result="none"
1652
1653 # etip.h includes ncurses.h which includes ncurses_dll.h
1654 # But ncurses_dll.h is generated - fix here.
1655 test -d include || mkdir include
1656 test -f include/ncurses_dll.h || sed -e 's/@NCURSES_WRAP_PREFIX@/'$NCURSES_WRAP_PREFIX'/g' ${srcdir}/include/ncurses_dll.h.in >include/ncurses_dll.h
1657
1658 for cf_math in "" MATH_H
1659 do
1660 for cf_excp in "" MATH_EXCEPTION
1661 do
1662         CXXFLAGS="$cf_save_CXXFLAGS -I${srcdir}/c++ -I${srcdir}/menu -Iinclude -I${srcdir}/include"
1663         test -n "$cf_math" && CXXFLAGS="$CXXFLAGS -DETIP_NEEDS_${cf_math}"
1664         test -n "$cf_excp" && CXXFLAGS="$CXXFLAGS -DETIP_NEEDS_${cf_excp}"
1665 AC_TRY_COMPILE([
1666 #include <etip.h.in>
1667 ],[],[
1668         test -n "$cf_math" && AC_DEFINE_UNQUOTED(ETIP_NEEDS_${cf_math})
1669         test -n "$cf_excp" && AC_DEFINE_UNQUOTED(ETIP_NEEDS_${cf_excp})
1670         cf_result="$cf_math $cf_excp"
1671         break 2
1672 ],[])
1673 done
1674 done
1675 AC_MSG_RESULT($cf_result)
1676 CXXFLAGS="$cf_save_CXXFLAGS"
1677 ])
1678 dnl ---------------------------------------------------------------------------
1679 dnl CF_FIND_LINKAGE version: 20 updated: 2015/04/18 08:56:57
1680 dnl ---------------
1681 dnl Find a library (specifically the linkage used in the code fragment),
1682 dnl searching for it if it is not already in the library path.
1683 dnl See also CF_ADD_SEARCHPATH.
1684 dnl
1685 dnl Parameters (4-on are optional):
1686 dnl     $1 = headers for library entrypoint
1687 dnl     $2 = code fragment for library entrypoint
1688 dnl     $3 = the library name without the "-l" option or ".so" suffix.
1689 dnl     $4 = action to perform if successful (default: update CPPFLAGS, etc)
1690 dnl     $5 = action to perform if not successful
1691 dnl     $6 = module name, if not the same as the library name
1692 dnl     $7 = extra libraries
1693 dnl
1694 dnl Sets these variables:
1695 dnl     $cf_cv_find_linkage_$3 - yes/no according to whether linkage is found
1696 dnl     $cf_cv_header_path_$3 - include-directory if needed
1697 dnl     $cf_cv_library_path_$3 - library-directory if needed
1698 dnl     $cf_cv_library_file_$3 - library-file if needed, e.g., -l$3
1699 AC_DEFUN([CF_FIND_LINKAGE],[
1700
1701 # If the linkage is not already in the $CPPFLAGS/$LDFLAGS configuration, these
1702 # will be set on completion of the AC_TRY_LINK below.
1703 cf_cv_header_path_$3=
1704 cf_cv_library_path_$3=
1705
1706 CF_MSG_LOG([Starting [FIND_LINKAGE]($3,$6)])
1707
1708 cf_save_LIBS="$LIBS"
1709
1710 AC_TRY_LINK([$1],[$2],[
1711         cf_cv_find_linkage_$3=yes
1712         cf_cv_header_path_$3=/usr/include
1713         cf_cv_library_path_$3=/usr/lib
1714 ],[
1715
1716 LIBS="-l$3 $7 $cf_save_LIBS"
1717
1718 AC_TRY_LINK([$1],[$2],[
1719         cf_cv_find_linkage_$3=yes
1720         cf_cv_header_path_$3=/usr/include
1721         cf_cv_library_path_$3=/usr/lib
1722         cf_cv_library_file_$3="-l$3"
1723 ],[
1724         cf_cv_find_linkage_$3=no
1725         LIBS="$cf_save_LIBS"
1726
1727         CF_VERBOSE(find linkage for $3 library)
1728         CF_MSG_LOG([Searching for headers in [FIND_LINKAGE]($3,$6)])
1729
1730         cf_save_CPPFLAGS="$CPPFLAGS"
1731         cf_test_CPPFLAGS="$CPPFLAGS"
1732
1733         CF_HEADER_PATH(cf_search,ifelse([$6],,[$3],[$6]))
1734         for cf_cv_header_path_$3 in $cf_search
1735         do
1736                 if test -d $cf_cv_header_path_$3 ; then
1737                         CF_VERBOSE(... testing $cf_cv_header_path_$3)
1738                         CPPFLAGS="$cf_save_CPPFLAGS -I$cf_cv_header_path_$3"
1739                         AC_TRY_COMPILE([$1],[$2],[
1740                                 CF_VERBOSE(... found $3 headers in $cf_cv_header_path_$3)
1741                                 cf_cv_find_linkage_$3=maybe
1742                                 cf_test_CPPFLAGS="$CPPFLAGS"
1743                                 break],[
1744                                 CPPFLAGS="$cf_save_CPPFLAGS"
1745                                 ])
1746                 fi
1747         done
1748
1749         if test "$cf_cv_find_linkage_$3" = maybe ; then
1750
1751                 CF_MSG_LOG([Searching for $3 library in [FIND_LINKAGE]($3,$6)])
1752
1753                 cf_save_LIBS="$LIBS"
1754                 cf_save_LDFLAGS="$LDFLAGS"
1755
1756                 ifelse([$6],,,[
1757                 CPPFLAGS="$cf_test_CPPFLAGS"
1758                 LIBS="-l$3 $7 $cf_save_LIBS"
1759                 AC_TRY_LINK([$1],[$2],[
1760                         CF_VERBOSE(... found $3 library in system)
1761                         cf_cv_find_linkage_$3=yes])
1762                         CPPFLAGS="$cf_save_CPPFLAGS"
1763                         LIBS="$cf_save_LIBS"
1764                         ])
1765
1766                 if test "$cf_cv_find_linkage_$3" != yes ; then
1767                         CF_LIBRARY_PATH(cf_search,$3)
1768                         for cf_cv_library_path_$3 in $cf_search
1769                         do
1770                                 if test -d $cf_cv_library_path_$3 ; then
1771                                         CF_VERBOSE(... testing $cf_cv_library_path_$3)
1772                                         CPPFLAGS="$cf_test_CPPFLAGS"
1773                                         LIBS="-l$3 $7 $cf_save_LIBS"
1774                                         LDFLAGS="$cf_save_LDFLAGS -L$cf_cv_library_path_$3"
1775                                         AC_TRY_LINK([$1],[$2],[
1776                                         CF_VERBOSE(... found $3 library in $cf_cv_library_path_$3)
1777                                         cf_cv_find_linkage_$3=yes
1778                                         cf_cv_library_file_$3="-l$3"
1779                                         break],[
1780                                         CPPFLAGS="$cf_save_CPPFLAGS"
1781                                         LIBS="$cf_save_LIBS"
1782                                         LDFLAGS="$cf_save_LDFLAGS"
1783                                         ])
1784                                 fi
1785                         done
1786                         CPPFLAGS="$cf_save_CPPFLAGS"
1787                         LDFLAGS="$cf_save_LDFLAGS"
1788                 fi
1789
1790         else
1791                 cf_cv_find_linkage_$3=no
1792         fi
1793         ],$7)
1794 ])
1795
1796 LIBS="$cf_save_LIBS"
1797
1798 if test "$cf_cv_find_linkage_$3" = yes ; then
1799 ifelse([$4],,[
1800         CF_ADD_INCDIR($cf_cv_header_path_$3)
1801         CF_ADD_LIBDIR($cf_cv_library_path_$3)
1802         CF_ADD_LIB($3)
1803 ],[$4])
1804 else
1805 ifelse([$5],,AC_MSG_WARN(Cannot find $3 library),[$5])
1806 fi
1807 ])dnl
1808 dnl ---------------------------------------------------------------------------
1809 dnl CF_FIND_SUB_INCDIR version: 2 updated: 2015/04/17 21:13:04
1810 dnl ------------------
1811 dnl Find an include-directory with the given leaf-name.  This is useful for
1812 dnl example with FreeBSD ports, which use this convention to distinguish
1813 dnl different versions of the same port.
1814 AC_DEFUN([CF_FIND_SUB_INCDIR],[
1815         CF_SUBDIR_PATH(cf_search,$1,include)
1816         for cf_item in $cf_search
1817         do
1818                 case $cf_item in
1819                 (*/$1)
1820                         CF_ADD_INCDIR($cf_item)
1821                         ;;
1822                 esac
1823         done
1824 ])dnl
1825 dnl ---------------------------------------------------------------------------
1826 dnl CF_FIND_SUB_LIBDIR version: 2 updated: 2015/04/17 21:13:04
1827 dnl ------------------
1828 dnl Find a library-directory with the given leaf-name.  This is useful for
1829 dnl example with FreeBSD ports, which use this convention to distinguish
1830 dnl different versions of the same port.
1831 AC_DEFUN([CF_FIND_SUB_LIBDIR],[
1832         CF_SUBDIR_PATH(cf_search,$1,lib)
1833         for cf_item in $cf_search
1834         do
1835                 case $cf_item in
1836                 (*/$1)
1837                         CF_ADD_LIBDIR($cf_item)
1838                         ;;
1839                 esac
1840         done
1841 ])dnl
1842 dnl ---------------------------------------------------------------------------
1843 dnl CF_FIXUP_ADAFLAGS version: 2 updated: 2015/04/17 21:13:04
1844 dnl -----------------
1845 dnl make ADAFLAGS consistent with CFLAGS
1846 AC_DEFUN([CF_FIXUP_ADAFLAGS],[
1847         AC_MSG_CHECKING(optimization options for ADAFLAGS)
1848         case "$CFLAGS" in
1849         (*-g*)
1850                 CF_ADD_ADAFLAGS(-g)
1851                 ;;
1852         esac
1853         case "$CFLAGS" in
1854         (*-O*)
1855                 cf_O_flag=`echo "$CFLAGS" |sed -e 's/^.*-O/-O/' -e 's/[[        ]].*//'`
1856                 CF_ADD_ADAFLAGS($cf_O_flag)
1857                 ;;
1858         esac
1859         AC_MSG_RESULT($ADAFLAGS)
1860 ])dnl
1861 dnl ---------------------------------------------------------------------------
1862 dnl CF_FORGET_TOOL version: 1 updated: 2013/04/06 18:03:09
1863 dnl --------------
1864 dnl Forget that we saw the given tool.
1865 AC_DEFUN([CF_FORGET_TOOL],[
1866 unset ac_cv_prog_ac_ct_$1
1867 unset ac_ct_$1
1868 unset $1
1869 ])dnl
1870 dnl ---------------------------------------------------------------------------
1871 dnl CF_FUNC_DLSYM version: 4 updated: 2015/09/12 14:46:44
1872 dnl -------------
1873 dnl Test for dlsym() and related functions, as well as libdl.
1874 dnl
1875 dnl Sets
1876 dnl     $cf_have_dlsym
1877 dnl     $cf_have_libdl
1878 AC_DEFUN([CF_FUNC_DLSYM],[
1879 cf_have_dlsym=no
1880 AC_CHECK_FUNC(dlsym,cf_have_dlsym=yes,[
1881
1882 cf_have_libdl=no
1883 AC_CHECK_LIB(dl,dlsym,[
1884         cf_have_dlsym=yes
1885         cf_have_libdl=yes])])
1886
1887 if test "$cf_have_dlsym" = yes ; then
1888         test "$cf_have_libdl" = yes && { CF_ADD_LIB(dl) }
1889
1890         AC_MSG_CHECKING(whether able to link to dl*() functions)
1891         AC_TRY_LINK([#include <dlfcn.h>],[
1892                 void *obj;
1893                 if ((obj = dlopen("filename", 0)) != 0) {
1894                         if (dlsym(obj, "symbolname") == 0) {
1895                         dlclose(obj);
1896                         }
1897                 }],[
1898                 AC_DEFINE(HAVE_LIBDL,1,[Define to 1 if we have dl library])],[
1899                 AC_MSG_ERROR(Cannot link test program for libdl)])
1900         AC_MSG_RESULT(ok)
1901 else
1902         AC_MSG_ERROR(Cannot find dlsym function)
1903 fi
1904 ])
1905 dnl ---------------------------------------------------------------------------
1906 dnl CF_FUNC_MEMMOVE version: 8 updated: 2012/10/04 20:12:20
1907 dnl ---------------
1908 dnl Check for memmove, or a bcopy that can handle overlapping copy.  If neither
1909 dnl is found, add our own version of memmove to the list of objects.
1910 AC_DEFUN([CF_FUNC_MEMMOVE],
1911 [
1912 AC_CHECK_FUNC(memmove,,[
1913 AC_CHECK_FUNC(bcopy,[
1914         AC_CACHE_CHECK(if bcopy does overlapping moves,cf_cv_good_bcopy,[
1915                 AC_TRY_RUN([
1916 int main() {
1917         static char data[] = "abcdefghijklmnopqrstuwwxyz";
1918         char temp[40];
1919         bcopy(data, temp, sizeof(data));
1920         bcopy(temp+10, temp, 15);
1921         bcopy(temp+5, temp+15, 10);
1922         ${cf_cv_main_return:-return} (strcmp(temp, "klmnopqrstuwwxypqrstuwwxyz"));
1923 }
1924                 ],
1925                 [cf_cv_good_bcopy=yes],
1926                 [cf_cv_good_bcopy=no],
1927                 [cf_cv_good_bcopy=unknown])
1928                 ])
1929         ],[cf_cv_good_bcopy=no])
1930         if test "$cf_cv_good_bcopy" = yes ; then
1931                 AC_DEFINE(USE_OK_BCOPY,1,[Define to 1 to use bcopy when memmove is unavailable])
1932         else
1933                 AC_DEFINE(USE_MY_MEMMOVE,1,[Define to 1 to use replacement function when memmove is unavailable])
1934         fi
1935 ])])dnl
1936 dnl ---------------------------------------------------------------------------
1937 dnl CF_FUNC_NANOSLEEP version: 4 updated: 2012/10/06 17:56:13
1938 dnl -----------------
1939 dnl Check for existence of workable nanosleep() function.  Some systems, e.g.,
1940 dnl AIX 4.x, provide a non-working version.
1941 AC_DEFUN([CF_FUNC_NANOSLEEP],[
1942 AC_CACHE_CHECK(if nanosleep really works,cf_cv_func_nanosleep,[
1943 AC_TRY_RUN([
1944 #include <stdio.h>
1945 #include <errno.h>
1946 #include <time.h>
1947
1948 #ifdef HAVE_SYS_TIME_H
1949 #include <sys/time.h>
1950 #endif
1951
1952 int main() {
1953         struct timespec ts1, ts2;
1954         int code;
1955         ts1.tv_sec  = 0;
1956         ts1.tv_nsec = 750000000;
1957         ts2.tv_sec  = 0;
1958         ts2.tv_nsec = 0;
1959         errno = 0;
1960         code = nanosleep(&ts1, &ts2); /* on failure errno is ENOSYS. */
1961         ${cf_cv_main_return:-return}(code != 0);
1962 }
1963 ],
1964         [cf_cv_func_nanosleep=yes],
1965         [cf_cv_func_nanosleep=no],
1966         [cf_cv_func_nanosleep=unknown])])
1967
1968 test "$cf_cv_func_nanosleep" = "yes" && AC_DEFINE(HAVE_NANOSLEEP,1,[Define to 1 if we have nanosleep()])
1969 ])
1970 dnl ---------------------------------------------------------------------------
1971 dnl CF_FUNC_OPENPTY version: 5 updated: 2015/09/12 14:46:50
1972 dnl ---------------
1973 dnl Check for openpty() function, along with <pty.h> header.  It may need the
1974 dnl "util" library as well.
1975 AC_DEFUN([CF_FUNC_OPENPTY],
1976 [
1977 AC_CHECK_LIB(util,openpty,cf_cv_lib_util=yes,cf_cv_lib_util=no)
1978 AC_CACHE_CHECK(for openpty header,cf_cv_func_openpty,[
1979         cf_save_LIBS="$LIBS"
1980         test $cf_cv_lib_util = yes && { CF_ADD_LIB(util) }
1981         for cf_header in pty.h libutil.h util.h
1982         do
1983         AC_TRY_LINK([
1984 #include <$cf_header>
1985 ],[
1986         int x = openpty((int *)0, (int *)0, (char *)0,
1987                                    (struct termios *)0, (struct winsize *)0);
1988 ],[
1989                 cf_cv_func_openpty=$cf_header
1990                 break
1991 ],[
1992                 cf_cv_func_openpty=no
1993 ])
1994         done
1995         LIBS="$cf_save_LIBS"
1996 ])
1997 ])dnl
1998 dnl ---------------------------------------------------------------------------
1999 dnl CF_FUNC_POLL version: 9 updated: 2015/10/10 13:27:32
2000 dnl ------------
2001 dnl See if the poll function really works.  Some platforms have poll(), but
2002 dnl it does not work for terminals or files.
2003 AC_DEFUN([CF_FUNC_POLL],[
2004 tty 2>&1 >/dev/null || { AC_CHECK_FUNCS(posix_openpt) }
2005 AC_CACHE_CHECK(if poll really works,cf_cv_working_poll,[
2006 AC_TRY_RUN([
2007 #include <stdlib.h>
2008 #include <stdio.h>
2009 #include <unistd.h>
2010 #include <fcntl.h>
2011 #ifdef HAVE_POLL_H
2012 #include <poll.h>
2013 #else
2014 #include <sys/poll.h>
2015 #endif
2016 int main(void) {
2017         struct pollfd myfds;
2018         int ret;
2019
2020         /* check for Darwin bug with respect to "devices" */
2021         myfds.fd = open("/dev/null", 1);        /* O_WRONLY */
2022         if (myfds.fd < 0)
2023                 myfds.fd = 0;
2024         myfds.events = POLLIN;
2025         myfds.revents = 0;
2026
2027         ret = poll(&myfds, 1, 100);
2028
2029         if (ret < 0 || (myfds.revents & POLLNVAL)) {
2030                 ret = -1;
2031         } else {
2032                 int fd = 0;
2033                 if (!isatty(fd)) {
2034                         fd = open("/dev/tty", 2);       /* O_RDWR */
2035                 }
2036 #ifdef HAVE_POSIX_OPENPT
2037                 if (fd < 0) {
2038                         fd = posix_openpt(O_RDWR);
2039                 }
2040 #endif
2041
2042                 if (fd >= 0) {
2043                         /* also check with standard input */
2044                         myfds.fd = fd;
2045                         myfds.events = POLLIN;
2046                         myfds.revents = 0;
2047                         ret = poll(&myfds, 1, 100);
2048                 } else {
2049                         ret = -1;
2050                 }
2051         }
2052         ${cf_cv_main_return:-return}(ret < 0);
2053 }],
2054         [cf_cv_working_poll=yes],
2055         [cf_cv_working_poll=no],
2056         [cf_cv_working_poll=unknown])])
2057 test "$cf_cv_working_poll" = "yes" && AC_DEFINE(HAVE_WORKING_POLL,1,[Define to 1 if the poll function seems to work])
2058 ])dnl
2059 dnl ---------------------------------------------------------------------------
2060 dnl CF_FUNC_TERMIOS version: 3 updated: 2012/10/06 17:56:13
2061 dnl ---------------
2062 dnl Some old/broken variations define tcgetattr() only as a macro in
2063 dnl termio(s).h
2064 AC_DEFUN([CF_FUNC_TERMIOS],[
2065 AC_REQUIRE([CF_STRUCT_TERMIOS])
2066 AC_CACHE_CHECK(for tcgetattr, cf_cv_have_tcgetattr,[
2067 AC_TRY_LINK([
2068 #include <sys/types.h>
2069 #ifdef HAVE_UNISTD_H
2070 #include <unistd.h>
2071 #endif
2072 #ifdef HAVE_TERMIOS_H
2073 #include <termios.h>
2074 #define TTY struct termios
2075 #else
2076 #ifdef HAVE_TERMIO_H
2077 #include <termio.h>
2078 #define TTY struct termio
2079 #endif
2080 #endif
2081 ],[
2082 TTY foo;
2083 tcgetattr(1, &foo);],
2084 [cf_cv_have_tcgetattr=yes],
2085 [cf_cv_have_tcgetattr=no])])
2086 test "$cf_cv_have_tcgetattr" = yes && AC_DEFINE(HAVE_TCGETATTR,1,[Define to 1 if we have tcgetattr])
2087 ])dnl
2088 dnl ---------------------------------------------------------------------------
2089 dnl CF_FUNC_VSSCANF version: 6 updated: 2015/04/18 08:56:57
2090 dnl ---------------
2091 dnl Check for vsscanf() function, which is in c9x but generally not in earlier
2092 dnl versions of C.  It is in the GNU C library, and can often be simulated by
2093 dnl other functions.
2094 AC_DEFUN([CF_FUNC_VSSCANF],
2095 [
2096 AC_CACHE_CHECK(for vsscanf function or workaround,cf_cv_func_vsscanf,[
2097 AC_TRY_LINK([
2098 #include <stdarg.h>
2099 #include <stdio.h>],[
2100         va_list ap;
2101         vsscanf("from", "%d", ap)],[cf_cv_func_vsscanf=vsscanf],[
2102 AC_TRY_LINK([
2103 #include <stdarg.h>
2104 #include <stdio.h>],[
2105         FILE strbuf;
2106         char *str = "from";
2107
2108         strbuf._flag = _IOREAD;
2109         strbuf._ptr = strbuf._base = (unsigned char *) str;
2110         strbuf._cnt = strlen(str);
2111         strbuf._file = _NFILE;
2112         return (vfscanf(&strbuf, "%d", ap))],[cf_cv_func_vsscanf=vfscanf],[
2113 AC_TRY_LINK([
2114 #include <stdarg.h>
2115 #include <stdio.h>],[
2116         FILE strbuf;
2117         char *str = "from";
2118
2119         strbuf._flag = _IOREAD;
2120         strbuf._ptr = strbuf._base = (unsigned char *) str;
2121         strbuf._cnt = strlen(str);
2122         strbuf._file = _NFILE;
2123         return (_doscan(&strbuf, "%d", ap))],[cf_cv_func_vsscanf=_doscan],[
2124 cf_cv_func_vsscanf=no])])])])
2125
2126 case $cf_cv_func_vsscanf in
2127 (vsscanf) AC_DEFINE(HAVE_VSSCANF,1,[Define to 1 if we have vsscanf]);;
2128 (vfscanf) AC_DEFINE(HAVE_VFSCANF,1,[Define to 1 if we have vfscanf]);;
2129 (_doscan) AC_DEFINE(HAVE__DOSCAN,1,[Define to 1 if we have _doscan]);;
2130 esac
2131
2132 ])dnl
2133 dnl ---------------------------------------------------------------------------
2134 dnl CF_GCC_ATTRIBUTES version: 17 updated: 2015/04/12 15:39:00
2135 dnl -----------------
2136 dnl Test for availability of useful gcc __attribute__ directives to quiet
2137 dnl compiler warnings.  Though useful, not all are supported -- and contrary
2138 dnl to documentation, unrecognized directives cause older compilers to barf.
2139 AC_DEFUN([CF_GCC_ATTRIBUTES],
2140 [
2141 if test "$GCC" = yes
2142 then
2143 cat > conftest.i <<EOF
2144 #ifndef GCC_PRINTF
2145 #define GCC_PRINTF 0
2146 #endif
2147 #ifndef GCC_SCANF
2148 #define GCC_SCANF 0
2149 #endif
2150 #ifndef GCC_NORETURN
2151 #define GCC_NORETURN /* nothing */
2152 #endif
2153 #ifndef GCC_UNUSED
2154 #define GCC_UNUSED /* nothing */
2155 #endif
2156 EOF
2157 if test "$GCC" = yes
2158 then
2159         AC_CHECKING([for $CC __attribute__ directives])
2160 cat > conftest.$ac_ext <<EOF
2161 #line __oline__ "${as_me:-configure}"
2162 #include "confdefs.h"
2163 #include "conftest.h"
2164 #include "conftest.i"
2165 #if     GCC_PRINTF
2166 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
2167 #else
2168 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
2169 #endif
2170 #if     GCC_SCANF
2171 #define GCC_SCANFLIKE(fmt,var)  __attribute__((format(scanf,fmt,var)))
2172 #else
2173 #define GCC_SCANFLIKE(fmt,var)  /*nothing*/
2174 #endif
2175 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
2176 extern void oops(char *,...) GCC_PRINTFLIKE(1,2) GCC_NORETURN;
2177 extern void foo(void) GCC_NORETURN;
2178 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { return 0; }
2179 EOF
2180         cf_printf_attribute=no
2181         cf_scanf_attribute=no
2182         for cf_attribute in scanf printf unused noreturn
2183         do
2184                 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
2185                 cf_directive="__attribute__(($cf_attribute))"
2186                 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
2187
2188                 case $cf_attribute in
2189                 (printf)
2190                         cf_printf_attribute=yes
2191                         cat >conftest.h <<EOF
2192 #define GCC_$cf_ATTRIBUTE 1
2193 EOF
2194                         ;;
2195                 (scanf)
2196                         cf_scanf_attribute=yes
2197                         cat >conftest.h <<EOF
2198 #define GCC_$cf_ATTRIBUTE 1
2199 EOF
2200                         ;;
2201                 (*)
2202                         cat >conftest.h <<EOF
2203 #define GCC_$cf_ATTRIBUTE $cf_directive
2204 EOF
2205                         ;;
2206                 esac
2207
2208                 if AC_TRY_EVAL(ac_compile); then
2209                         test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
2210                         cat conftest.h >>confdefs.h
2211                         case $cf_attribute in
2212                         (noreturn)
2213                                 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
2214                                 ;;
2215                         (printf)
2216                                 cf_value='/* nothing */'
2217                                 if test "$cf_printf_attribute" != no ; then
2218                                         cf_value='__attribute__((format(printf,fmt,var)))'
2219                                         AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
2220                                 fi
2221                                 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
2222                                 ;;
2223                         (scanf)
2224                                 cf_value='/* nothing */'
2225                                 if test "$cf_scanf_attribute" != no ; then
2226                                         cf_value='__attribute__((format(scanf,fmt,var)))'
2227                                         AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
2228                                 fi
2229                                 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
2230                                 ;;
2231                         (unused)
2232                                 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
2233                                 ;;
2234                         esac
2235                 fi
2236         done
2237 else
2238         fgrep define conftest.i >>confdefs.h
2239 fi
2240 rm -rf conftest*
2241 fi
2242 ])dnl
2243 dnl ---------------------------------------------------------------------------
2244 dnl CF_GCC_VERSION version: 7 updated: 2012/10/18 06:46:33
2245 dnl --------------
2246 dnl Find version of gcc
2247 AC_DEFUN([CF_GCC_VERSION],[
2248 AC_REQUIRE([AC_PROG_CC])
2249 GCC_VERSION=none
2250 if test "$GCC" = yes ; then
2251         AC_MSG_CHECKING(version of $CC)
2252         GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
2253         test -z "$GCC_VERSION" && GCC_VERSION=unknown
2254         AC_MSG_RESULT($GCC_VERSION)
2255 fi
2256 ])dnl
2257 dnl ---------------------------------------------------------------------------
2258 dnl CF_GCC_WARNINGS version: 32 updated: 2015/04/12 15:39:00
2259 dnl ---------------
2260 dnl Check if the compiler supports useful warning options.  There's a few that
2261 dnl we don't use, simply because they're too noisy:
2262 dnl
2263 dnl     -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
2264 dnl     -Wredundant-decls (system headers make this too noisy)
2265 dnl     -Wtraditional (combines too many unrelated messages, only a few useful)
2266 dnl     -Wwrite-strings (too noisy, but should review occasionally).  This
2267 dnl             is enabled for ncurses using "--enable-const".
2268 dnl     -pedantic
2269 dnl
2270 dnl Parameter:
2271 dnl     $1 is an optional list of gcc warning flags that a particular
2272 dnl             application might want to use, e.g., "no-unused" for
2273 dnl             -Wno-unused
2274 dnl Special:
2275 dnl     If $with_ext_const is "yes", add a check for -Wwrite-strings
2276 dnl
2277 AC_DEFUN([CF_GCC_WARNINGS],
2278 [
2279 AC_REQUIRE([CF_GCC_VERSION])
2280 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
2281 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
2282
2283 cat > conftest.$ac_ext <<EOF
2284 #line __oline__ "${as_me:-configure}"
2285 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
2286 EOF
2287
2288 if test "$INTEL_COMPILER" = yes
2289 then
2290 # The "-wdXXX" options suppress warnings:
2291 # remark #1419: external declaration in primary source file
2292 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
2293 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
2294 # remark #193: zero used for undefined preprocessing identifier
2295 # remark #593: variable "curs_sb_left_arrow" was set but never used
2296 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
2297 # remark #869: parameter "tw" was never referenced
2298 # remark #981: operands are evaluated in unspecified order
2299 # warning #279: controlling expression is constant
2300
2301         AC_CHECKING([for $CC warning options])
2302         cf_save_CFLAGS="$CFLAGS"
2303         EXTRA_CFLAGS="-Wall"
2304         for cf_opt in \
2305                 wd1419 \
2306                 wd1683 \
2307                 wd1684 \
2308                 wd193 \
2309                 wd593 \
2310                 wd279 \
2311                 wd810 \
2312                 wd869 \
2313                 wd981
2314         do
2315                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
2316                 if AC_TRY_EVAL(ac_compile); then
2317                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
2318                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
2319                 fi
2320         done
2321         CFLAGS="$cf_save_CFLAGS"
2322
2323 elif test "$GCC" = yes
2324 then
2325         AC_CHECKING([for $CC warning options])
2326         cf_save_CFLAGS="$CFLAGS"
2327         EXTRA_CFLAGS=
2328         cf_warn_CONST=""
2329         test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
2330         cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
2331         test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
2332         for cf_opt in W Wall \
2333                 Wbad-function-cast \
2334                 Wcast-align \
2335                 Wcast-qual \
2336                 Wdeclaration-after-statement \
2337                 Wextra \
2338                 Winline \
2339                 Wmissing-declarations \
2340                 Wmissing-prototypes \
2341                 Wnested-externs \
2342                 Wpointer-arith \
2343                 Wshadow \
2344                 Wstrict-prototypes \
2345                 Wundef $cf_gcc_warnings $cf_warn_CONST $1
2346         do
2347                 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
2348                 if AC_TRY_EVAL(ac_compile); then
2349                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
2350                         case $cf_opt in
2351                         (Wcast-qual)
2352                                 CPPFLAGS="$CPPFLAGS -DXTSTRINGDEFINES"
2353                                 ;;
2354                         (Winline)
2355                                 case $GCC_VERSION in
2356                                 ([[34]].*)
2357                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
2358                                         continue;;
2359                                 esac
2360                                 ;;
2361                         (Wpointer-arith)
2362                                 case $GCC_VERSION in
2363                                 ([[12]].*)
2364                                         CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
2365                                         continue;;
2366                                 esac
2367                                 ;;
2368                         esac
2369                         EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
2370                 fi
2371         done
2372         CFLAGS="$cf_save_CFLAGS"
2373 fi
2374 rm -rf conftest*
2375
2376 AC_SUBST(EXTRA_CFLAGS)
2377 ])dnl
2378 dnl ---------------------------------------------------------------------------
2379 dnl CF_GETOPT_HEADER version: 6 updated: 2014/07/22 14:45:54
2380 dnl ----------------
2381 dnl Check for getopt's variables which are commonly defined in stdlib.h,
2382 dnl unistd.h or (nonstandard) in getopt.h
2383 AC_DEFUN([CF_GETOPT_HEADER],
2384 [
2385 AC_HAVE_HEADERS(unistd.h getopt.h)
2386 AC_CACHE_CHECK(for header declaring getopt variables,cf_cv_getopt_header,[
2387 cf_cv_getopt_header=none
2388 for cf_header in stdio.h stdlib.h unistd.h getopt.h
2389 do
2390 AC_TRY_COMPILE([
2391 #include <$cf_header>],
2392 [int x = optind; char *y = optarg],
2393 [cf_cv_getopt_header=$cf_header
2394  break])
2395 done
2396 ])
2397 if test $cf_cv_getopt_header != none ; then
2398         AC_DEFINE(HAVE_GETOPT_HEADER,1,[Define to 1 if getopt variables are declared in header])
2399 fi
2400 if test $cf_cv_getopt_header = getopt.h ; then
2401         AC_DEFINE(NEED_GETOPT_H,1,[Define to 1 if we must include getopt.h])
2402 fi
2403 ])dnl
2404 dnl ---------------------------------------------------------------------------
2405 dnl CF_GNATPREP_OPT_T version: 1 updated: 2014/08/02 18:37:25
2406 dnl -----------------
2407 AC_DEFUN([CF_GNATPREP_OPT_T],[
2408 AC_CACHE_CHECK(if GNATPREP supports -T option,cf_cv_gnatprep_opt_t,[
2409 cf_cv_gnatprep_opt_t=no
2410 gnatprep -T 2>/dev/null >/dev/null && cf_cv_gnatprep_opt_t=yes
2411 ])
2412 test "$cf_cv_gnatprep_opt_t" = yes && GNATPREP_OPTS="-T $GNATPREP_OPTS"
2413 AC_SUBST(GNATPREP_OPTS)
2414 ])dnl
2415 dnl ---------------------------------------------------------------------------
2416 dnl CF_GNAT_GENERICS version: 3 updated: 2015/04/17 21:13:04
2417 dnl ----------------
2418 AC_DEFUN([CF_GNAT_GENERICS],
2419 [
2420 AC_REQUIRE([CF_GNAT_VERSION])
2421
2422 AC_MSG_CHECKING(if GNAT supports generics)
2423 case $cf_gnat_version in
2424 (3.[[1-9]]*|[[4-9]].*)
2425         cf_gnat_generics=yes
2426         ;;
2427 (*)
2428         cf_gnat_generics=no
2429         ;;
2430 esac
2431 AC_MSG_RESULT($cf_gnat_generics)
2432
2433 if test "$cf_gnat_generics" = yes
2434 then
2435         cf_compile_generics=generics
2436         cf_generic_objects="\${GENOBJS}"
2437 else
2438         cf_compile_generics=
2439         cf_generic_objects=
2440 fi
2441
2442 AC_SUBST(cf_compile_generics)
2443 AC_SUBST(cf_generic_objects)
2444 ])dnl
2445 dnl ---------------------------------------------------------------------------
2446 dnl CF_GNAT_PROJECTS version: 8 updated: 2015/04/17 21:13:04
2447 dnl ----------------
2448 dnl GNAT projects are configured with ".gpr" project files.
2449 dnl GNAT libraries are a further development, using the project feature.
2450 AC_DEFUN([CF_GNAT_PROJECTS],
2451 [
2452 AC_REQUIRE([CF_GNAT_VERSION])
2453 AC_REQUIRE([CF_DISABLE_GNAT_PROJECTS])
2454
2455 cf_gnat_libraries=no
2456 cf_gnat_projects=no
2457
2458 if test "$enable_gnat_projects" != no ; then
2459 AC_MSG_CHECKING(if GNAT supports project files)
2460 case $cf_gnat_version in
2461 (3.[[0-9]]*)
2462         ;;
2463 (*)
2464         case $cf_cv_system_name in
2465         (cygwin*|msys*)
2466                 ;;
2467         (*)
2468                 mkdir conftest.src conftest.bin conftest.lib
2469                 cd conftest.src
2470                 rm -rf conftest* *~conftest*
2471                 cat >>library.gpr <<CF_EOF
2472 project Library is
2473   Kind := External ("LIB_KIND");
2474   for Library_Name use "ConfTest";
2475   for Object_Dir use ".";
2476   for Library_ALI_Dir use External("LIBRARY_DIR");
2477   for Library_Version use External ("SONAME");
2478   for Library_Kind use Kind;
2479   for Library_Dir use External("BUILD_DIR");
2480   Source_Dir := External ("SOURCE_DIR");
2481   for Source_Dirs use (Source_Dir);
2482 end Library;
2483 CF_EOF
2484                 cat >>confpackage.ads <<CF_EOF
2485 package ConfPackage is
2486    procedure conftest;
2487 end ConfPackage;
2488 CF_EOF
2489                 cat >>confpackage.adb <<CF_EOF
2490 with Text_IO;
2491 package body ConfPackage is
2492    procedure conftest is
2493    begin
2494       Text_IO.Put ("Hello World");
2495       Text_IO.New_Line;
2496    end conftest;
2497 end ConfPackage;
2498 CF_EOF
2499                 if ( $cf_ada_make $ADAFLAGS \
2500                                 -Plibrary.gpr \
2501                                 -XBUILD_DIR=`cd ../conftest.bin;pwd` \
2502                                 -XLIBRARY_DIR=`cd ../conftest.lib;pwd` \
2503                                 -XSOURCE_DIR=`pwd` \
2504                                 -XSONAME=libConfTest.so.1 \
2505                                 -XLIB_KIND=static 1>&AC_FD_CC 2>&1 ) ; then
2506                         cf_gnat_projects=yes
2507                 fi
2508                 cd ..
2509                 if test -f conftest.lib/confpackage.ali
2510                 then
2511                         cf_gnat_libraries=yes
2512                 fi
2513                 rm -rf conftest* *~conftest*
2514                 ;;
2515         esac
2516         ;;
2517 esac
2518 AC_MSG_RESULT($cf_gnat_projects)
2519 fi # enable_gnat_projects
2520
2521 if test $cf_gnat_projects = yes
2522 then
2523         AC_MSG_CHECKING(if GNAT supports libraries)
2524         AC_MSG_RESULT($cf_gnat_libraries)
2525 fi
2526
2527 if test "$cf_gnat_projects" = yes
2528 then
2529         USE_OLD_MAKERULES="#"
2530         USE_GNAT_PROJECTS=""
2531 else
2532         USE_OLD_MAKERULES=""
2533         USE_GNAT_PROJECTS="#"
2534 fi
2535
2536 if test "$cf_gnat_libraries" = yes
2537 then
2538         USE_GNAT_LIBRARIES=""
2539 else
2540         USE_GNAT_LIBRARIES="#"
2541 fi
2542
2543 AC_SUBST(USE_OLD_MAKERULES)
2544 AC_SUBST(USE_GNAT_PROJECTS)
2545 AC_SUBST(USE_GNAT_LIBRARIES)
2546 ])dnl
2547 dnl ---------------------------------------------------------------------------
2548 dnl CF_GNAT_SIGINT version: 1 updated: 2011/03/27 20:07:59
2549 dnl --------------
2550 dnl Check if gnat supports SIGINT, and presumably tasking.  For the latter, it
2551 dnl is noted that gnat may compile a tasking unit even for configurations which
2552 dnl fail at runtime.
2553 AC_DEFUN([CF_GNAT_SIGINT],[
2554 AC_CACHE_CHECK(if GNAT supports SIGINT,cf_cv_gnat_sigint,[
2555 CF_GNAT_TRY_LINK([with Ada.Interrupts.Names;
2556
2557 package ConfTest is
2558
2559    pragma Warnings (Off);  --  the next pragma exists since 3.11p
2560    pragma Unreserve_All_Interrupts;
2561    pragma Warnings (On);
2562
2563    protected Process is
2564       procedure Stop;
2565       function Continue return Boolean;
2566       pragma Attach_Handler (Stop, Ada.Interrupts.Names.SIGINT);
2567    private
2568       Done : Boolean := False;
2569    end Process;
2570
2571 end ConfTest;],
2572 [package body ConfTest is
2573    protected body Process is
2574       procedure Stop is
2575       begin
2576          Done := True;
2577       end Stop;
2578       function Continue return Boolean is
2579       begin
2580          return not Done;
2581       end Continue;
2582    end Process;
2583 end ConfTest;],
2584         [cf_cv_gnat_sigint=yes],
2585         [cf_cv_gnat_sigint=no])])
2586
2587 if test $cf_cv_gnat_sigint = yes ; then
2588         USE_GNAT_SIGINT=""
2589 else
2590         USE_GNAT_SIGINT="#"
2591 fi
2592 AC_SUBST(USE_GNAT_SIGINT)
2593 ])dnl
2594 dnl ---------------------------------------------------------------------------
2595 dnl CF_GNAT_TRY_LINK version: 3 updated: 2011/03/19 14:47:45
2596 dnl ----------------
2597 dnl Verify that a test program compiles/links with GNAT.
2598 dnl $cf_ada_make is set to the program that compiles/links
2599 dnl $ADAFLAGS may be set to the GNAT flags.
2600 dnl
2601 dnl $1 is the text of the spec
2602 dnl $2 is the text of the body
2603 dnl $3 is the shell command to execute if successful
2604 dnl $4 is the shell command to execute if not successful
2605 AC_DEFUN([CF_GNAT_TRY_LINK],
2606 [
2607 rm -rf conftest* *~conftest*
2608 cat >>conftest.ads <<CF_EOF
2609 $1
2610 CF_EOF
2611 cat >>conftest.adb <<CF_EOF
2612 $2
2613 CF_EOF
2614 if ( $cf_ada_make $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
2615 ifelse($3,,      :,[      $3])
2616 ifelse($4,,,[else
2617    $4])
2618 fi
2619 rm -rf conftest* *~conftest*
2620 ])dnl
2621 dnl ---------------------------------------------------------------------------
2622 dnl CF_GNAT_TRY_RUN version: 5 updated: 2011/03/19 14:47:45
2623 dnl ---------------
2624 dnl Verify that a test program compiles and runs with GNAT
2625 dnl $cf_ada_make is set to the program that compiles/links
2626 dnl $ADAFLAGS may be set to the GNAT flags.
2627 dnl
2628 dnl $1 is the text of the spec
2629 dnl $2 is the text of the body
2630 dnl $3 is the shell command to execute if successful
2631 dnl $4 is the shell command to execute if not successful
2632 AC_DEFUN([CF_GNAT_TRY_RUN],
2633 [
2634 rm -rf conftest* *~conftest*
2635 cat >>conftest.ads <<CF_EOF
2636 $1
2637 CF_EOF
2638 cat >>conftest.adb <<CF_EOF
2639 $2
2640 CF_EOF
2641 if ( $cf_ada_make $ADAFLAGS conftest 1>&AC_FD_CC 2>&1 ) ; then
2642    if ( ./conftest 1>&AC_FD_CC 2>&1 ) ; then
2643 ifelse($3,,      :,[      $3])
2644 ifelse($4,,,[   else
2645       $4])
2646    fi
2647 ifelse($4,,,[else
2648    $4])
2649 fi
2650 rm -rf conftest* *~conftest*
2651 ])dnl
2652 dnl ---------------------------------------------------------------------------
2653 dnl CF_GNAT_VERSION version: 20 updated: 2015/04/18 08:56:57
2654 dnl ---------------
2655 dnl Verify version of GNAT.
2656 AC_DEFUN([CF_GNAT_VERSION],
2657 [
2658 AC_MSG_CHECKING(for gnat version)
2659 cf_gnat_version=`${cf_ada_make:-gnatmake} -v 2>&1 | \
2660         grep '[[0-9]].[[0-9]][[0-9]]*' |\
2661         sed -e '2,$d' -e 's/[[^0-9 \.]]//g' -e 's/^[[ ]]*//' -e 's/ .*//'`
2662 AC_MSG_RESULT($cf_gnat_version)
2663
2664 case $cf_gnat_version in
2665 (3.1[[1-9]]*|3.[[2-9]]*|[[4-9]].*|20[[0-9]][[0-9]])
2666         cf_cv_prog_gnat_correct=yes
2667         ;;
2668 (*)
2669         AC_MSG_WARN(Unsupported GNAT version $cf_gnat_version. We require 3.11 or better. Disabling Ada95 binding.)
2670         cf_cv_prog_gnat_correct=no
2671         ;;
2672 esac
2673 ])
2674 dnl ---------------------------------------------------------------------------
2675 dnl CF_GNU_SOURCE version: 7 updated: 2016/08/05 05:15:37
2676 dnl -------------
2677 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
2678 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend.  This is a defect
2679 dnl (or misfeature) of glibc2, which breaks portability of many applications,
2680 dnl since it is interwoven with GNU extensions.
2681 dnl
2682 dnl Well, yes we could work around it...
2683 AC_DEFUN([CF_GNU_SOURCE],
2684 [
2685 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
2686 AC_TRY_COMPILE([#include <sys/types.h>],[
2687 #ifndef _XOPEN_SOURCE
2688 make an error
2689 #endif],
2690         [cf_cv_gnu_source=no],
2691         [cf_save="$CPPFLAGS"
2692          CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
2693          AC_TRY_COMPILE([#include <sys/types.h>],[
2694 #ifdef _XOPEN_SOURCE
2695 make an error
2696 #endif],
2697         [cf_cv_gnu_source=no],
2698         [cf_cv_gnu_source=yes])
2699         CPPFLAGS="$cf_save"
2700         ])
2701 ])
2702
2703 if test "$cf_cv_gnu_source" = yes
2704 then
2705 AC_CACHE_CHECK(if we should also define _DEFAULT_SOURCE,cf_cv_default_source,[
2706 CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
2707         AC_TRY_COMPILE([#include <sys/types.h>],[
2708 #ifdef _DEFAULT_SOURCE
2709 make an error
2710 #endif],
2711                 [cf_cv_default_source=no],
2712                 [cf_cv_default_source=yes])
2713         ])
2714 test "$cf_cv_default_source" = yes && CPPFLAGS="$CPPFLAGS -D_DEFAULT_SOURCE"
2715 fi
2716 ])dnl
2717 dnl ---------------------------------------------------------------------------
2718 dnl CF_GPP_LIBRARY version: 12 updated: 2015/04/17 21:13:04
2719 dnl --------------
2720 dnl If we're trying to use g++, test if libg++ is installed (a rather common
2721 dnl problem :-).  If we have the compiler but no library, we'll be able to
2722 dnl configure, but won't be able to build the c++ demo program.
2723 AC_DEFUN([CF_GPP_LIBRARY],
2724 [
2725 cf_cxx_library=unknown
2726 case $cf_cv_system_name in
2727 (os2*)
2728         cf_gpp_libname=gpp
2729         ;;
2730 (*)
2731         cf_gpp_libname=g++
2732         ;;
2733 esac
2734 if test "$GXX" = yes; then
2735         AC_MSG_CHECKING([for lib$cf_gpp_libname])
2736         cf_save="$LIBS"
2737         CF_ADD_LIB($cf_gpp_libname)
2738         AC_TRY_LINK([
2739 #include <$cf_gpp_libname/builtin.h>
2740         ],
2741         [two_arg_error_handler_t foo2 = lib_error_handler],
2742         [cf_cxx_library=yes
2743          CF_ADD_LIB($cf_gpp_libname,CXXLIBS)
2744          if test "$cf_gpp_libname" = cpp ; then
2745             AC_DEFINE(HAVE_GPP_BUILTIN_H,1,[Define to 1 if we have gpp builtin.h])
2746          else
2747             AC_DEFINE(HAVE_GXX_BUILTIN_H,1,[Define to 1 if we have g++ builtin.h])
2748          fi],
2749         [AC_TRY_LINK([
2750 #include <builtin.h>
2751         ],
2752         [two_arg_error_handler_t foo2 = lib_error_handler],
2753         [cf_cxx_library=yes
2754          CF_ADD_LIB($cf_gpp_libname,CXXLIBS)
2755          AC_DEFINE(HAVE_BUILTIN_H,1,[Define to 1 if we have builtin.h])],
2756         [cf_cxx_library=no])])
2757         LIBS="$cf_save"
2758         AC_MSG_RESULT($cf_cxx_library)
2759 fi
2760 ])dnl
2761 dnl ---------------------------------------------------------------------------
2762 dnl CF_GXX_VERSION version: 7 updated: 2012/06/16 14:55:39
2763 dnl --------------
2764 dnl Check for version of g++
2765 AC_DEFUN([CF_GXX_VERSION],[
2766 AC_REQUIRE([AC_PROG_CPP])
2767 GXX_VERSION=none
2768 if test "$GXX" = yes; then
2769         AC_MSG_CHECKING(version of ${CXX:-g++})
2770         GXX_VERSION="`${CXX:-g++} --version| sed -e '2,$d' -e 's/^.*(GCC) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
2771         test -z "$GXX_VERSION" && GXX_VERSION=unknown
2772         AC_MSG_RESULT($GXX_VERSION)
2773 fi
2774 ])dnl
2775 dnl ---------------------------------------------------------------------------
2776 dnl CF_GXX_WARNINGS version: 9 updated: 2015/04/17 21:13:04
2777 dnl ---------------
2778 dnl Check if the compiler supports useful warning options.
2779 dnl
2780 dnl Most of gcc's options apply to g++, except:
2781 dnl     -Wbad-function-cast
2782 dnl     -Wmissing-declarations
2783 dnl     -Wnested-externs
2784 dnl
2785 dnl Omit a few (for now):
2786 dnl     -Winline
2787 dnl
2788 dnl Parameter:
2789 dnl     $1 is an optional list of g++ warning flags that a particular
2790 dnl             application might want to use, e.g., "no-unused" for
2791 dnl             -Wno-unused
2792 dnl Special:
2793 dnl     If $with_ext_const is "yes", add a check for -Wwrite-strings
2794 dnl
2795 AC_DEFUN([CF_GXX_WARNINGS],
2796 [
2797
2798 CF_INTEL_COMPILER(GXX,INTEL_CPLUSPLUS,CXXFLAGS)
2799 CF_CLANG_COMPILER(GXX,CLANG_CPLUSPLUS,CXXFLAGS)
2800
2801 AC_REQUIRE([CF_GXX_VERSION])
2802
2803 AC_LANG_SAVE
2804 AC_LANG_CPLUSPLUS
2805
2806 cat > conftest.$ac_ext <<EOF
2807 #line __oline__ "configure"
2808 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
2809 EOF
2810
2811 if test "$INTEL_CPLUSPLUS" = yes
2812 then
2813 # The "-wdXXX" options suppress warnings:
2814 # remark #1419: external declaration in primary source file
2815 # remark #1682: implicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
2816 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
2817 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
2818 # remark #193: zero used for undefined preprocessing identifier
2819 # remark #593: variable "curs_sb_left_arrow" was set but never used
2820 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
2821 # remark #869: parameter "tw" was never referenced
2822 # remark #981: operands are evaluated in unspecified order
2823 # warning #269: invalid format string conversion
2824
2825         AC_CHECKING([for $CC warning options])
2826         cf_save_CXXFLAGS="$CXXFLAGS"
2827         EXTRA_CXXFLAGS="-Wall"
2828         for cf_opt in \
2829                 wd1419 \
2830                 wd1682 \
2831                 wd1683 \
2832                 wd1684 \
2833                 wd193 \
2834                 wd279 \
2835                 wd593 \
2836                 wd810 \
2837                 wd869 \
2838                 wd981
2839         do
2840                 CXXFLAGS="$cf_save_CXXFLAGS $EXTRA_CXXFLAGS -$cf_opt"
2841                 if AC_TRY_EVAL(ac_compile); then
2842                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
2843                         EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS -$cf_opt"
2844                 fi
2845         done
2846         CXXFLAGS="$cf_save_CXXFLAGS"
2847
2848 elif test "$GXX" = yes
2849 then
2850         AC_CHECKING([for $CXX warning options])
2851         cf_save_CXXFLAGS="$CXXFLAGS"
2852         EXTRA_CXXFLAGS="-W -Wall"
2853         cf_gxx_extra_warnings=""
2854         test "$with_ext_const" = yes && cf_gxx_extra_warnings="Wwrite-strings"
2855         case "$GCC_VERSION" in
2856         ([[1-2]].*)
2857                 ;;
2858         (*)
2859                 cf_gxx_extra_warnings="$cf_gxx_extra_warnings Weffc++"
2860                 ;;
2861         esac
2862         for cf_opt in \
2863                 Wabi \
2864                 fabi-version=0 \
2865                 Wextra \
2866                 Wignored-qualifiers \
2867                 Wlogical-op \
2868                 Woverloaded-virtual \
2869                 Wsign-promo \
2870                 Wsynth \
2871                 Wold-style-cast \
2872                 Wcast-align \
2873                 Wcast-qual \
2874                 Wpointer-arith \
2875                 Wshadow \
2876                 Wundef $cf_gxx_extra_warnings $1
2877         do
2878                 CXXFLAGS="$cf_save_CXXFLAGS $EXTRA_CXXFLAGS -Werror -$cf_opt"
2879                 if AC_TRY_EVAL(ac_compile); then
2880                         test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
2881                         EXTRA_CXXFLAGS="$EXTRA_CXXFLAGS -$cf_opt"
2882                 else
2883                         test -n "$verbose" && AC_MSG_RESULT(... no -$cf_opt)
2884                 fi
2885         done
2886         CXXFLAGS="$cf_save_CXXFLAGS"
2887 fi
2888
2889 rm -rf conftest*
2890 AC_LANG_RESTORE
2891 AC_SUBST(EXTRA_CXXFLAGS)
2892 ])dnl
2893 dnl ---------------------------------------------------------------------------
2894 dnl CF_HASHED_DB version: 7 updated: 2015/04/18 08:56:57
2895 dnl ------------
2896 dnl Look for an instance of the Berkeley hashed database.
2897 dnl
2898 dnl $1 = optional parameter, to specify install-prefix for the database.
2899 AC_DEFUN([CF_HASHED_DB],
2900 [
2901 ifelse([$1],,,[
2902 case $1 in
2903 (yes|*able*)
2904         ;;
2905 (*)
2906         if test -d "$1" ; then
2907                 CF_ADD_INCDIR($1/include)
2908                 CF_ADD_LIBDIR($1/lib)
2909         else
2910                 case "$1" in
2911                 (./*|../*|/*)
2912                         AC_MSG_WARN(no such directory $1)
2913                         ;;
2914                 (*)
2915                         CF_FIND_SUB_INCDIR($1)
2916                         CF_FIND_SUB_LIBDIR($1)
2917                         ;;
2918                 esac
2919         fi
2920 esac
2921 ])
2922 AC_CHECK_HEADER(db.h,[
2923 CF_HASHED_DB_VERSION
2924 if test "$cf_cv_hashed_db_version" = unknown ; then
2925         AC_MSG_ERROR(Cannot determine version of db)
2926 else
2927         CF_HASHED_DB_LIBS
2928         if test "$cf_cv_hashed_db_libs" = unknown ; then
2929                 AC_MSG_ERROR(Cannot determine library for db)
2930         elif test "$cf_cv_hashed_db_libs" != default ; then
2931                 CF_ADD_LIB($cf_cv_hashed_db_libs)
2932         fi
2933 fi
2934 ],[
2935         AC_MSG_ERROR(Cannot find db.h)
2936 ])
2937 ])dnl
2938 dnl ---------------------------------------------------------------------------
2939 dnl CF_HASHED_DB_LIBS version: 9 updated: 2010/05/29 16:31:02
2940 dnl -----------------
2941 dnl Given that we have the header and version for hashed database, find the
2942 dnl library information.
2943 AC_DEFUN([CF_HASHED_DB_LIBS],
2944 [
2945 AC_CACHE_CHECK(for db libraries, cf_cv_hashed_db_libs,[
2946 cf_cv_hashed_db_libs=unknown
2947 for cf_db_libs in "" db$cf_cv_hashed_db_version db-$cf_cv_hashed_db_version db ''
2948 do
2949         cf_save_libs="$LIBS"
2950         if test -n "$cf_db_libs"; then
2951                 CF_ADD_LIB($cf_db_libs)
2952         fi
2953         CF_MSG_LOG(checking for library "$cf_db_libs")
2954         AC_TRY_LINK([
2955 $ac_includes_default
2956 #include <db.h>
2957 ],[
2958         char *path = "/tmp/foo";
2959 #ifdef DB_VERSION_MAJOR
2960 #if DB_VERSION_MAJOR >= 4
2961         DB *result = 0;
2962         db_create(&result, NULL, 0);
2963         result->open(result,
2964                 NULL,
2965                 path,
2966                 path,
2967                 DB_HASH,
2968                 DB_CREATE,
2969                 0644);
2970 #elif DB_VERSION_MAJOR >= 3
2971         DB *result = 0;
2972         db_create(&result, NULL, 0);
2973         result->open(result,
2974                 path,
2975                 path,
2976                 DB_HASH,
2977                 DB_CREATE,
2978                 0644);
2979 #elif DB_VERSION_MAJOR >= 2
2980         DB *result = 0;
2981         db_open(path,
2982                 DB_HASH,
2983                 DB_CREATE,
2984                 0644,
2985                 (DB_ENV *) 0,
2986                 (DB_INFO *) 0,
2987                 &result);
2988 #endif /* DB_VERSION_MAJOR */
2989 #else
2990         DB *result = dbopen(path,
2991                      2,
2992                      0644,
2993                      DB_HASH,
2994                      0);
2995 #endif
2996         ${cf_cv_main_return:-return}(result != 0)
2997 ],[
2998         if test -n "$cf_db_libs" ; then
2999                 cf_cv_hashed_db_libs=$cf_db_libs
3000         else
3001                 cf_cv_hashed_db_libs=default
3002         fi
3003         LIBS="$cf_save_libs"
3004         break
3005 ])
3006         LIBS="$cf_save_libs"
3007 done
3008 ])
3009 ])dnl
3010 dnl ---------------------------------------------------------------------------
3011 dnl CF_HASHED_DB_VERSION version: 4 updated: 2014/04/12 16:47:01
3012 dnl --------------------
3013 dnl Given that we have the header file for hashed database, find the version
3014 dnl information.
3015 AC_DEFUN([CF_HASHED_DB_VERSION],
3016 [
3017 AC_CACHE_CHECK(for version of db, cf_cv_hashed_db_version,[
3018 cf_cv_hashed_db_version=unknown
3019
3020 for cf_db_version in 1 2 3 4 5 6
3021 do
3022         CF_MSG_LOG(checking for db version $cf_db_version)
3023         AC_TRY_COMPILE([
3024 $ac_includes_default
3025 #include <db.h>
3026
3027 #ifdef DB_VERSION_MAJOR
3028         /* db2 (DB_VERSION_MAJOR=2) has also DB_VERSION_MINOR, tested with 7 */
3029 #if $cf_db_version == DB_VERSION_MAJOR
3030         /* ok */
3031 #else
3032         make an error
3033 #endif
3034 #else
3035 #if $cf_db_version == 1
3036         /* ok: assuming this is DB 1.8.5 */
3037 #else
3038         make an error
3039 #endif
3040 #endif
3041 ],[DBT *foo = 0],[
3042         cf_cv_hashed_db_version=$cf_db_version
3043         break
3044         ])
3045 done
3046 ])
3047 ])dnl
3048 dnl ---------------------------------------------------------------------------
3049 dnl CF_HEADER_PATH version: 13 updated: 2015/04/15 19:08:48
3050 dnl --------------
3051 dnl Construct a search-list of directories for a nonstandard header-file
3052 dnl
3053 dnl Parameters
3054 dnl     $1 = the variable to return as result
3055 dnl     $2 = the package name
3056 AC_DEFUN([CF_HEADER_PATH],
3057 [
3058 $1=
3059
3060 # collect the current set of include-directories from compiler flags
3061 cf_header_path_list=""
3062 if test -n "${CFLAGS}${CPPFLAGS}" ; then
3063         for cf_header_path in $CPPFLAGS $CFLAGS
3064         do
3065                 case $cf_header_path in
3066                 (-I*)
3067                         cf_header_path=`echo ".$cf_header_path" |sed -e 's/^...//' -e 's,/include$,,'`
3068                         CF_ADD_SUBDIR_PATH($1,$2,include,$cf_header_path,NONE)
3069                         cf_header_path_list="$cf_header_path_list [$]$1"
3070                         ;;
3071                 esac
3072         done
3073 fi
3074
3075 # add the variations for the package we are looking for
3076 CF_SUBDIR_PATH($1,$2,include)
3077
3078 test "$includedir" != NONE && \
3079 test "$includedir" != "/usr/include" && \
3080 test -d "$includedir" && {
3081         test -d $includedir &&    $1="[$]$1 $includedir"
3082         test -d $includedir/$2 && $1="[$]$1 $includedir/$2"
3083 }
3084
3085 test "$oldincludedir" != NONE && \
3086 test "$oldincludedir" != "/usr/include" && \
3087 test -d "$oldincludedir" && {
3088         test -d $oldincludedir    && $1="[$]$1 $oldincludedir"
3089         test -d $oldincludedir/$2 && $1="[$]$1 $oldincludedir/$2"
3090 }
3091
3092 $1="[$]$1 $cf_header_path_list"
3093 ])dnl
3094 dnl ---------------------------------------------------------------------------
3095 dnl CF_HELP_MESSAGE version: 3 updated: 1998/01/14 10:56:23
3096 dnl ---------------
3097 dnl Insert text into the help-message, for readability, from AC_ARG_WITH.
3098 AC_DEFUN([CF_HELP_MESSAGE],
3099 [AC_DIVERT_HELP([$1])dnl
3100 ])dnl
3101 dnl ---------------------------------------------------------------------------
3102 dnl CF_INCLUDE_DIRS version: 10 updated: 2014/09/19 20:58:42
3103 dnl ---------------
3104 dnl Construct the list of include-options according to whether we're building
3105 dnl in the source directory or using '--srcdir=DIR' option.
3106 AC_DEFUN([CF_INCLUDE_DIRS],
3107 [
3108 if test "$srcdir" != "."; then
3109         CPPFLAGS="-I\${srcdir}/../include $CPPFLAGS"
3110 fi
3111 CPPFLAGS="-I../include $CPPFLAGS"
3112 if test "$srcdir" != "."; then
3113         CPPFLAGS="-I\${srcdir} $CPPFLAGS"
3114 fi
3115 CPPFLAGS="-I. $CPPFLAGS"
3116 AC_SUBST(CPPFLAGS)
3117 ])dnl
3118 dnl ---------------------------------------------------------------------------
3119 dnl CF_INTEL_COMPILER version: 7 updated: 2015/04/12 15:39:00
3120 dnl -----------------
3121 dnl Check if the given compiler is really the Intel compiler for Linux.  It
3122 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
3123 dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
3124 dnl
3125 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
3126 dnl ensure that it is not mistaken for gcc/g++.  It is normally invoked from
3127 dnl the wrappers for gcc and g++ warnings.
3128 dnl
3129 dnl $1 = GCC (default) or GXX
3130 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
3131 dnl $3 = CFLAGS (default) or CXXFLAGS
3132 AC_DEFUN([CF_INTEL_COMPILER],[
3133 AC_REQUIRE([AC_CANONICAL_HOST])
3134 ifelse([$2],,INTEL_COMPILER,[$2])=no
3135
3136 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
3137         case $host_os in
3138         (linux*|gnu*)
3139                 AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
3140                 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
3141                 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
3142                 AC_TRY_COMPILE([],[
3143 #ifdef __INTEL_COMPILER
3144 #else
3145 make an error
3146 #endif
3147 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
3148 cf_save_CFLAGS="$cf_save_CFLAGS -we147"
3149 ],[])
3150                 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
3151                 AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
3152                 ;;
3153         esac
3154 fi
3155 ])dnl
3156 dnl ---------------------------------------------------------------------------
3157 dnl CF_ISASCII version: 4 updated: 2012/10/06 17:56:13
3158 dnl ----------
3159 dnl Check if we have either a function or macro for 'isascii()'.
3160 AC_DEFUN([CF_ISASCII],
3161 [
3162 AC_MSG_CHECKING(for isascii)
3163 AC_CACHE_VAL(cf_cv_have_isascii,[
3164         AC_TRY_LINK([#include <ctype.h>],[int x = isascii(' ')],
3165         [cf_cv_have_isascii=yes],
3166         [cf_cv_have_isascii=no])
3167 ])dnl
3168 AC_MSG_RESULT($cf_cv_have_isascii)
3169 test "$cf_cv_have_isascii" = yes && AC_DEFINE(HAVE_ISASCII,1,[Define to 1 if we have isascii()])
3170 ])dnl
3171 dnl ---------------------------------------------------------------------------
3172 dnl CF_LARGEFILE version: 9 updated: 2015/04/18 08:56:57
3173 dnl ------------
3174 dnl Add checks for large file support.
3175 AC_DEFUN([CF_LARGEFILE],[
3176 ifdef([AC_FUNC_FSEEKO],[
3177         AC_SYS_LARGEFILE
3178         if test "$enable_largefile" != no ; then
3179         AC_FUNC_FSEEKO
3180
3181         # Normally we would collect these definitions in the config.h,
3182         # but (like _XOPEN_SOURCE), some environments rely on having these
3183         # defined before any of the system headers are included.  Another
3184         # case comes up with C++, e.g., on AIX the compiler compiles the
3185         # header files by themselves before looking at the body files it is
3186         # told to compile.  For ncurses, those header files do not include
3187         # the config.h
3188         test "$ac_cv_sys_large_files"      != no && CPPFLAGS="$CPPFLAGS -D_LARGE_FILES "
3189         test "$ac_cv_sys_largefile_source" != no && CPPFLAGS="$CPPFLAGS -D_LARGEFILE_SOURCE "
3190         test "$ac_cv_sys_file_offset_bits" != no && CPPFLAGS="$CPPFLAGS -D_FILE_OFFSET_BITS=$ac_cv_sys_file_offset_bits "
3191
3192         AC_CACHE_CHECK(whether to use struct dirent64, cf_cv_struct_dirent64,[
3193                 AC_TRY_COMPILE([
3194 #include <sys/types.h>
3195 #include <dirent.h>
3196                 ],[
3197                 /* if transitional largefile support is setup, this is true */
3198                 extern struct dirent64 * readdir(DIR *);
3199                 struct dirent64 *x = readdir((DIR *)0);
3200                 struct dirent *y = readdir((DIR *)0);
3201                 int z = x - y;
3202                 ],
3203                 [cf_cv_struct_dirent64=yes],
3204                 [cf_cv_struct_dirent64=no])
3205         ])
3206         test "$cf_cv_struct_dirent64" = yes && AC_DEFINE(HAVE_STRUCT_DIRENT64,1,[Define to 1 if we have struct dirent64])
3207         fi
3208 ])
3209 ])
3210 dnl ---------------------------------------------------------------------------
3211 dnl CF_LDFLAGS_STATIC version: 12 updated: 2015/04/18 08:56:57
3212 dnl -----------------
3213 dnl Check for compiler/linker flags used to temporarily force usage of static
3214 dnl libraries.  This depends on the compiler and platform.  Use this to help
3215 dnl ensure that the linker picks up a given library based on its position in
3216 dnl the list of linker options and libraries.
3217 AC_DEFUN([CF_LDFLAGS_STATIC],[
3218
3219 if test "$GCC" = yes ; then
3220         case $cf_cv_system_name in
3221         (OS/2*|os2*|aix[[4]]*|solaris2.1[[0-9]]|darwin*)
3222                 LDFLAGS_STATIC=
3223                 LDFLAGS_SHARED=
3224                 ;;
3225         (*)     # normally, except when broken
3226                 LDFLAGS_STATIC=-static
3227                 LDFLAGS_SHARED=-dynamic
3228                 ;;
3229         esac
3230 else
3231         case $cf_cv_system_name in
3232         (aix[[4-7]]*)   # from ld manpage
3233                 LDFLAGS_STATIC=-bstatic
3234                 LDFLAGS_SHARED=-bdynamic
3235                 ;;
3236         (hpux*)         # from ld manpage for hpux10.20, hpux11.11
3237                 # We could also use just "archive" and "shared".
3238                 LDFLAGS_STATIC=-Wl,-a,archive_shared
3239                 LDFLAGS_SHARED=-Wl,-a,shared_archive
3240                 ;;
3241         (irix*)         # from ld manpage IRIX64
3242                 LDFLAGS_STATIC=-Bstatic
3243                 LDFLAGS_SHARED=-Bdynamic
3244                 ;;
3245         (osf[[45]]*)    # from ld manpage osf4.0d, osf5.1
3246                 # alternative "-oldstyle_liblookup" (not in cc manpage)
3247                 LDFLAGS_STATIC=-noso
3248                 LDFLAGS_SHARED=-so_archive
3249                 ;;
3250         (solaris2*)
3251                 LDFLAGS_STATIC=-Bstatic
3252                 LDFLAGS_SHARED=-Bdynamic
3253                 ;;
3254         esac
3255 fi
3256
3257 if test -n "$LDFLAGS_STATIC" && test -n "$LDFLAGS_SHARED"
3258 then
3259         AC_MSG_CHECKING(if linker supports switching between static/dynamic)
3260
3261         rm -f libconftest.a
3262         cat >conftest.$ac_ext <<EOF
3263 #line __oline__ "configure"
3264 #include <stdio.h>
3265 int cf_ldflags_static(FILE *fp) { return fflush(fp); }
3266 EOF
3267         if AC_TRY_EVAL(ac_compile) ; then
3268                 ( $AR $ARFLAGS libconftest.a conftest.o ) 2>&AC_FD_CC 1>/dev/null
3269                 ( eval $RANLIB libconftest.a ) 2>&AC_FD_CC >/dev/null
3270         fi
3271         rm -f conftest.*
3272
3273         cf_save_LIBS="$LIBS"
3274
3275         LIBS="$LDFLAGS_STATIC -L`pwd` -lconftest $LDFLAGS_DYNAMIC $LIBS"
3276         AC_TRY_LINK([
3277 #line __oline__ "configure"
3278 #include <stdio.h>
3279 int cf_ldflags_static(FILE *fp);
3280 ],[
3281         return cf_ldflags_static(stdin);
3282 ],[
3283         # some linkers simply ignore the -dynamic
3284         case x`file conftest$ac_exeext 2>/dev/null` in
3285         (*static*)
3286                 cf_ldflags_static=no
3287                 ;;
3288         (*)
3289                 cf_ldflags_static=yes
3290                 ;;
3291         esac
3292 ],[cf_ldflags_static=no])
3293
3294         rm -f libconftest.*
3295         LIBS="$cf_save_LIBS"
3296
3297         AC_MSG_RESULT($cf_ldflags_static)
3298
3299         if test $cf_ldflags_static != yes
3300         then
3301                 LDFLAGS_STATIC=
3302                 LDFLAGS_SHARED=
3303         fi
3304 else
3305         LDFLAGS_STATIC=
3306         LDFLAGS_SHARED=
3307 fi
3308
3309 AC_SUBST(LDFLAGS_STATIC)
3310 AC_SUBST(LDFLAGS_SHARED)
3311 ])
3312 dnl ---------------------------------------------------------------------------
3313 dnl CF_LD_RPATH_OPT version: 7 updated: 2016/02/20 18:01:19
3314 dnl ---------------
3315 dnl For the given system and compiler, find the compiler flags to pass to the
3316 dnl loader to use the "rpath" feature.
3317 AC_DEFUN([CF_LD_RPATH_OPT],
3318 [
3319 AC_REQUIRE([CF_CHECK_CACHE])
3320
3321 LD_RPATH_OPT=
3322 AC_MSG_CHECKING(for an rpath option)
3323 case $cf_cv_system_name in
3324 (irix*)
3325         if test "$GCC" = yes; then
3326                 LD_RPATH_OPT="-Wl,-rpath,"
3327         else
3328                 LD_RPATH_OPT="-rpath "
3329         fi
3330         ;;
3331 (linux*|gnu*|k*bsd*-gnu|freebsd*)
3332         LD_RPATH_OPT="-Wl,-rpath,"
3333         ;;
3334 (openbsd[[2-9]].*|mirbsd*)
3335         LD_RPATH_OPT="-Wl,-rpath,"
3336         ;;
3337 (dragonfly*)
3338         LD_RPATH_OPT="-rpath "
3339         ;;
3340 (netbsd*)
3341         LD_RPATH_OPT="-Wl,-rpath,"
3342         ;;
3343 (osf*|mls+*)
3344         LD_RPATH_OPT="-rpath "
3345         ;;
3346 (solaris2*)
3347         LD_RPATH_OPT="-R"
3348         ;;
3349 (*)
3350         ;;
3351 esac
3352 AC_MSG_RESULT($LD_RPATH_OPT)
3353
3354 case "x$LD_RPATH_OPT" in
3355 (x-R*)
3356         AC_MSG_CHECKING(if we need a space after rpath option)
3357         cf_save_LIBS="$LIBS"
3358         CF_ADD_LIBS(${LD_RPATH_OPT}$libdir)
3359         AC_TRY_LINK(, , cf_rpath_space=no, cf_rpath_space=yes)
3360         LIBS="$cf_save_LIBS"
3361         AC_MSG_RESULT($cf_rpath_space)
3362         test "$cf_rpath_space" = yes && LD_RPATH_OPT="$LD_RPATH_OPT "
3363         ;;
3364 esac
3365 ])dnl
3366 dnl ---------------------------------------------------------------------------
3367 dnl CF_LIBRARY_PATH version: 10 updated: 2015/04/15 19:08:48
3368 dnl ---------------
3369 dnl Construct a search-list of directories for a nonstandard library-file
3370 dnl
3371 dnl Parameters
3372 dnl     $1 = the variable to return as result
3373 dnl     $2 = the package name
3374 AC_DEFUN([CF_LIBRARY_PATH],
3375 [
3376 $1=
3377 cf_library_path_list=""
3378 if test -n "${LDFLAGS}${LIBS}" ; then
3379         for cf_library_path in $LDFLAGS $LIBS
3380         do
3381                 case $cf_library_path in
3382                 (-L*)
3383                         cf_library_path=`echo ".$cf_library_path" |sed -e 's/^...//' -e 's,/lib$,,'`
3384                         CF_ADD_SUBDIR_PATH($1,$2,lib,$cf_library_path,NONE)
3385                         cf_library_path_list="$cf_library_path_list [$]$1"
3386                         ;;
3387                 esac
3388         done
3389 fi
3390
3391 CF_SUBDIR_PATH($1,$2,lib)
3392
3393 $1="$cf_library_path_list [$]$1"
3394 ])dnl
3395 dnl ---------------------------------------------------------------------------
3396 dnl CF_LIBTOOL_VERSION version: 1 updated: 2013/04/06 18:03:09
3397 dnl ------------------
3398 AC_DEFUN([CF_LIBTOOL_VERSION],[
3399 if test -n "$LIBTOOL" && test "$LIBTOOL" != none
3400 then
3401         cf_cv_libtool_version=`$LIBTOOL --version 2>&1 | sed -e '/^$/d' |sed -e '2,$d' -e 's/([[^)]]*)//g' -e 's/^[[^1-9]]*//' -e 's/[[^0-9.]].*//'`
3402 else
3403         cf_cv_libtool_version=
3404 fi
3405 test -z "$cf_cv_libtool_version" && unset cf_cv_libtool_version
3406 ])dnl
3407 dnl ---------------------------------------------------------------------------
3408 dnl CF_LIB_PREFIX version: 12 updated: 2015/10/17 19:03:33
3409 dnl -------------
3410 dnl Compute the library-prefix for the given host system
3411 dnl $1 = variable to set
3412 define([CF_LIB_PREFIX],
3413 [
3414         case $cf_cv_system_name in
3415         (OS/2*|os2*)
3416                 if test "$DFT_LWR_MODEL" = libtool; then
3417                         LIB_PREFIX='lib'
3418                 else
3419                         LIB_PREFIX=''
3420                 fi
3421                 ;;
3422         (*)     LIB_PREFIX='lib'
3423                 ;;
3424         esac
3425 ifelse($1,,,[$1=$LIB_PREFIX])
3426         AC_SUBST(LIB_PREFIX)
3427 ])dnl
3428 dnl ---------------------------------------------------------------------------
3429 dnl CF_LIB_RULES version: 86 updated: 2015/11/07 20:01:34
3430 dnl ------------
3431 dnl Append definitions and rules for the given models to the subdirectory
3432 dnl Makefiles, and the recursion rule for the top-level Makefile.  If the
3433 dnl subdirectory is a library-source directory, modify the Libs_To_Make list in
3434 dnl the corresponding makefile to list the models that we'll generate.
3435 dnl
3436 dnl For shared libraries, make a list of symbolic links to construct when
3437 dnl generating each library.  The convention used for Linux is the simplest
3438 dnl one:
3439 dnl     lib<name>.so    ->
3440 dnl     lib<name>.so.<major>    ->
3441 dnl     lib<name>.so.<maj>.<minor>
3442 dnl
3443 dnl Note: Libs_To_Make is mixed case, since it is not a pure autoconf variable.
3444 AC_DEFUN([CF_LIB_RULES],
3445 [
3446 cf_prefix=$LIB_PREFIX
3447 AC_REQUIRE([CF_SUBST_NCURSES_VERSION])
3448
3449 case $cf_cv_shlib_version in
3450 (cygdll|msysdll|mingw)
3451         TINFO_NAME=$TINFO_ARG_SUFFIX
3452         TINFO_SUFFIX=.dll
3453         ;;
3454 esac
3455
3456 if test -n "$TINFO_SUFFIX" ; then
3457         case $TINFO_SUFFIX in
3458         (tw*)
3459                 TINFO_NAME="${TINFO_NAME}tw${EXTRA_SUFFIX}"
3460                 TINFO_SUFFIX=`echo $TINFO_SUFFIX | sed 's/^tw'$EXTRA_SUFFIX'//'`
3461                 ;;
3462         (t*)
3463                 TINFO_NAME="${TINFO_NAME}t${EXTRA_SUFFIX}"
3464                 TINFO_SUFFIX=`echo $TINFO_SUFFIX | sed 's/^t'$EXTRA_SUFFIX'//'`
3465                 ;;
3466         (w*)
3467                 TINFO_NAME="${TINFO_NAME}w${EXTRA_SUFFIX}"
3468                 TINFO_SUFFIX=`echo $TINFO_SUFFIX | sed 's/^w'$EXTRA_SUFFIX'//'`
3469                 ;;
3470         esac
3471 fi
3472
3473 for cf_dir in $SRC_SUBDIRS
3474 do
3475         if test ! -d $srcdir/$cf_dir ; then
3476                 continue
3477         elif test -f $srcdir/$cf_dir/modules; then
3478
3479                 SHARED_LIB=
3480                 Libs_To_Make=
3481                 cf_awk_program=
3482                 if test -n "${cf_cv_abi_version}" && test "x${cf_cv_abi_version}" != "x5"
3483                 then
3484                         cf_awk_program="$cf_awk_program\
3485 /deprecated in ABI${cf_cv_abi_version}/ { next; }\
3486 { sub(\"NCURSES([[WT]]+)?\", \"&${cf_cv_abi_version}\"); }\
3487 "
3488                 fi
3489
3490                 if test "x$WILDCARD_SYMS" = xno
3491                 then
3492                         cf_awk_program="$cf_awk_program\
3493 /[[     ]]_\\*;/ { skip=1; next; }\
3494 "
3495                 fi
3496
3497                 if test "x$cf_awk_program" != "x"
3498                 then
3499                         cat >>$cf_dir/Makefile <<CF_EOF
3500
3501 # Generated by CF_LIB_RULES
3502 resulting.map: $UNALTERED_SYMS
3503         $AWK 'BEGIN { skip = 1; last=""; } \
3504 $cf_awk_program \
3505 { if ( last != "" && ( skip == 0 || \[$]\[$]0 !~ /}/ ) ) { print last; }\
3506  skip = 0; last = \[$]\[$]0; } \
3507 END { print last; }' < $UNALTERED_SYMS >\[$]@
3508
3509 distclean::
3510         rm -f resulting.map
3511 CF_EOF
3512                 fi
3513
3514                 for cf_item in $cf_LIST_MODELS
3515                 do
3516                         CF_LIB_SUFFIX($cf_item,cf_suffix,cf_depsuf)
3517                         cf_libname=$cf_dir
3518                         test "$cf_dir" = c++ && cf_libname=ncurses++
3519                         if test $cf_item = shared ; then
3520                                 if test -n "${LIB_SUFFIX}"
3521                                 then
3522                                         cf_shared_suffix=`echo "$cf_suffix" | sed 's/^'"${USE_LIB_SUFFIX}"'//'`
3523                                 else
3524                                         cf_shared_suffix="$cf_suffix"
3525                                 fi
3526                                 if test "$cf_cv_do_symlinks" = yes ; then
3527                                         cf_version_name=
3528
3529                                         case "$cf_cv_shlib_version" in
3530                                         (rel)
3531                                                 cf_version_name=REL_VERSION
3532                                                 ;;
3533                                         (abi)
3534                                                 cf_version_name=ABI_VERSION
3535                                                 ;;
3536                                         esac
3537
3538                                         if test -n "$cf_version_name"
3539                                         then
3540                                                 case "$cf_cv_system_name" in
3541                                                 (darwin*)
3542                                                         # "w", etc?
3543                                                         cf_suffix="${USE_LIB_SUFFIX}"'.${'$cf_version_name'}'"$cf_shared_suffix"
3544                                                         ;;
3545                                                 (*)
3546                                                         cf_suffix="$cf_suffix"'.${'$cf_version_name'}'
3547                                                         ;;
3548                                                 esac
3549                                         fi
3550                                         if test -n "${USE_LIB_SUFFIX}"
3551                                         then
3552                                                 cf_shared_suffix=`echo "$cf_suffix" | sed 's/^'"${USE_LIB_SUFFIX}"'//'`
3553                                         else
3554                                                 cf_shared_suffix="$cf_suffix"
3555                                         fi
3556                                 fi
3557                                 # cygwin needs import library, and has unique naming convention
3558                                 # use autodetected ${cf_prefix} for import lib and static lib, but
3559                                 # use 'cyg' prefix for shared lib.
3560                                 case $cf_cv_shlib_version in
3561                                 (cygdll)
3562                                         cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
3563                                         cf_add_lib="../lib/cyg${cf_libname}${cf_cygsuf}"
3564                                         ;;
3565                                 (msysdll)
3566                                         cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
3567                                         cf_add_lib="../lib/msys-${cf_libname}${cf_cygsuf}"
3568                                         ;;
3569                                 (mingw)
3570                                         cf_cygsuf=`echo "$cf_suffix" | sed -e 's/\.dll/\${ABI_VERSION}.dll/'`
3571                                         cf_add_lib="../lib/lib${cf_libname}${cf_cygsuf}"
3572                                         ;;
3573                                 (*)
3574                                         cf_add_lib=
3575                                         ;;
3576                                 esac
3577                                 if test -n "$cf_add_lib"
3578                                 then
3579                                         Libs_To_Make="$Libs_To_Make $cf_add_lib"
3580                                         continue
3581                                 fi
3582                         fi
3583                         cf_add_lib="../lib/${cf_prefix}${cf_libname}${cf_suffix}"
3584                         Libs_To_Make="$Libs_To_Make $cf_add_lib"
3585                 done
3586
3587                 if test $cf_dir = ncurses ; then
3588                         cf_subsets="$LIB_SUBSETS"
3589                         cf_r_parts="$cf_subsets"
3590                         cf_liblist="$Libs_To_Make"
3591
3592                         while test -n "$cf_r_parts"
3593                         do
3594                                 cf_l_parts=`echo "$cf_r_parts" |sed -e 's/ .*$//'`
3595                                 cf_r_parts=`echo "$cf_r_parts" |sed -e 's/^[[^ ]]* //'`
3596                                 if test "$cf_l_parts" != "$cf_r_parts" ; then
3597                                         cf_add_lib=
3598                                         case $cf_l_parts in
3599                                         (*termlib*)
3600                                                 cf_add_lib=`echo $cf_liblist |sed -e s%${LIB_NAME}${USE_LIB_SUFFIX}%${TINFO_LIB_SUFFIX}%g`
3601                                                 ;;
3602                                         (*ticlib*)
3603                                                 cf_add_lib=`echo $cf_liblist |sed -e s%${LIB_NAME}${USE_LIB_SUFFIX}%${TICS_LIB_SUFFIX}%g`
3604                                                 ;;
3605                                         (*)
3606                                                 break
3607                                                 ;;
3608                                         esac
3609                                         if test -n "$cf_add_lib"; then
3610                                                 Libs_To_Make="$cf_add_lib $Libs_To_Make"
3611                                         fi
3612                                 else
3613                                         break
3614                                 fi
3615                         done
3616                 else
3617                         cf_subsets=`echo "$LIB_SUBSETS" | sed -e 's/^termlib.* //'`
3618                 fi
3619
3620                 if test $cf_dir = c++; then
3621                         if test "x$with_shared_cxx" != xyes && test -n "$cf_shared_suffix"; then
3622                                 cf_list=
3623                                 for cf_item in $Libs_To_Make
3624                                 do
3625                                         case $cf_item in
3626                                         (*.a)
3627                                                 ;;
3628                                         (*)
3629                                                 cf_item=`echo "$cf_item" | sed -e "s,"$cf_shared_suffix",.a,"`
3630                                                 ;;
3631                                         esac
3632                                         for cf_test in $cf_list
3633                                         do
3634                                                 if test "$cf_test" = "$cf_item"
3635                                                 then
3636                                                         cf_LIST_MODELS=`echo "$cf_LIST_MODELS" | sed -e 's/normal//'`
3637                                                         cf_item=
3638                                                         break
3639                                                 fi
3640                                         done
3641                                         test -n "$cf_item" && cf_list="$cf_list $cf_item"
3642                                 done
3643                                 Libs_To_Make="$cf_list"
3644                         fi
3645                 fi
3646
3647                 sed -e "s%@Libs_To_Make@%$Libs_To_Make%" \
3648                     -e "s%@SHARED_LIB@%$SHARED_LIB%" \
3649                         $cf_dir/Makefile >$cf_dir/Makefile.out
3650                 mv $cf_dir/Makefile.out $cf_dir/Makefile
3651
3652                 $AWK -f $srcdir/mk-0th.awk \
3653                         libname="${cf_dir}${LIB_SUFFIX}" subsets="$LIB_SUBSETS" ticlib="$TICS_LIB_SUFFIX" termlib="$TINFO_LIB_SUFFIX" \
3654                         $srcdir/$cf_dir/modules >>$cf_dir/Makefile
3655
3656                 for cf_subset in $cf_subsets
3657                 do
3658                         cf_subdirs=
3659                         for cf_item in $cf_LIST_MODELS
3660                         do
3661
3662                         echo "Appending rules for ${cf_item} model (${cf_dir}: ${cf_subset})"
3663                         CF_UPPER(cf_ITEM,$cf_item)
3664
3665                         CXX_MODEL=$cf_ITEM
3666                         if test "$CXX_MODEL" = SHARED; then
3667                                 case $cf_cv_shlib_version in
3668                                 (cygdll|msysdll|mingw)
3669                                         test "x$with_shared_cxx" = xno && CF_VERBOSE(overriding CXX_MODEL to SHARED)
3670                                         with_shared_cxx=yes
3671                                         ;;
3672                                 (*)
3673                                         test "x$with_shared_cxx" = xno && CXX_MODEL=NORMAL
3674                                         ;;
3675                                 esac
3676                         fi
3677
3678                         CF_LIB_SUFFIX($cf_item,cf_suffix,cf_depsuf)
3679                         CF_OBJ_SUBDIR($cf_item,cf_subdir)
3680
3681                         # Test for case where we build libtinfo with a different name.
3682                         cf_libname=$cf_dir
3683                         if test $cf_dir = ncurses ; then
3684                                 case $cf_subset in
3685                                 (*base*)
3686                                         cf_libname=${cf_libname}$USE_LIB_SUFFIX
3687                                         ;;
3688                                 (*termlib*)
3689                                         cf_libname=$TINFO_LIB_SUFFIX
3690                                         ;;
3691                                 (ticlib*)
3692                                         cf_libname=$TICS_LIB_SUFFIX
3693                                         ;;
3694                                 esac
3695                         elif test $cf_dir = c++ ; then
3696                                 cf_libname=ncurses++$USE_LIB_SUFFIX
3697                         else
3698                                 cf_libname=${cf_libname}$USE_LIB_SUFFIX
3699                         fi
3700                         if test -n "${USE_ARG_SUFFIX}" ; then
3701                                 # undo $USE_LIB_SUFFIX add-on in CF_LIB_SUFFIX
3702                                 cf_suffix=`echo $cf_suffix |sed -e "s%^${USE_LIB_SUFFIX}%%"`
3703                         fi