| blob | 6eec38d54ecd9967429a329f555e1ac4305c5bd6 |
1 dnl Id: aclocal.m4,v 1.37 2014/10/04 16:40:06 tom Exp
2 dnl Macros for byacc configure script (Thomas E. Dickey)
3 dnl ---------------------------------------------------------------------------
4 dnl Copyright 2004-2013,2014 Thomas E. Dickey
5 dnl
6 dnl Permission is hereby granted, free of charge, to any person obtaining a
7 dnl copy of this software and associated documentation files (the
8 dnl "Software"), to deal in the Software without restriction, including
9 dnl without limitation the rights to use, copy, modify, merge, publish,
10 dnl distribute, distribute with modifications, sublicense, and/or sell
11 dnl copies of the Software, and to permit persons to whom the Software is
12 dnl furnished to do so, subject to the following conditions:
13 dnl
14 dnl The above copyright notice and this permission notice shall be included
15 dnl in all copies or portions of the Software.
16 dnl
17 dnl THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
18 dnl OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19 dnl MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20 dnl IN NO EVENT SHALL THE ABOVE COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM,
21 dnl DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR
22 dnl OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR
23 dnl THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24 dnl
25 dnl Except as contained in this notice, the name(s) of the above copyright
26 dnl holders shall not be used in advertising or otherwise to promote the
27 dnl sale, use or other dealings in this Software without prior written
28 dnl authorization.
29 dnl ---------------------------------------------------------------------------
30 dnl ---------------------------------------------------------------------------
31 dnl CF_ACVERSION_CHECK version: 5 updated: 2014/06/04 19:11:49
32 dnl ------------------
33 dnl Conditionally generate script according to whether we're using a given autoconf.
34 dnl
35 dnl $1 = version to compare against
36 dnl $2 = code to use if AC_ACVERSION is at least as high as $1.
37 dnl $3 = code to use if AC_ACVERSION is older than $1.
38 define([CF_ACVERSION_CHECK],
39 [
40 ifdef([AC_ACVERSION], ,[ifdef([AC_AUTOCONF_VERSION],[m4_copy([AC_AUTOCONF_VERSION],[AC_ACVERSION])],[m4_copy([m4_PACKAGE_VERSION],[AC_ACVERSION])])])dnl
41 ifdef([m4_version_compare],
42 [m4_if(m4_version_compare(m4_defn([AC_ACVERSION]), [$1]), -1, [$3], [$2])],
43 [CF_ACVERSION_COMPARE(
44 AC_PREREQ_CANON(AC_PREREQ_SPLIT([$1])),
45 AC_PREREQ_CANON(AC_PREREQ_SPLIT(AC_ACVERSION)), AC_ACVERSION, [$2], [$3])])])dnl
46 dnl ---------------------------------------------------------------------------
47 dnl CF_ACVERSION_COMPARE version: 3 updated: 2012/10/03 18:39:53
48 dnl --------------------
49 dnl CF_ACVERSION_COMPARE(MAJOR1, MINOR1, TERNARY1,
50 dnl MAJOR2, MINOR2, TERNARY2,
51 dnl PRINTABLE2, not FOUND, FOUND)
52 define([CF_ACVERSION_COMPARE],
53 [ifelse(builtin([eval], [$2 < $5]), 1,
54 [ifelse([$8], , ,[$8])],
55 [ifelse([$9], , ,[$9])])])dnl
56 dnl ---------------------------------------------------------------------------
57 dnl CF_ADD_CFLAGS version: 11 updated: 2014/07/22 05:32:57
58 dnl -------------
59 dnl Copy non-preprocessor flags to $CFLAGS, preprocessor flags to $CPPFLAGS
60 dnl The second parameter if given makes this macro verbose.
61 dnl
62 dnl Put any preprocessor definitions that use quoted strings in $EXTRA_CPPFLAGS,
63 dnl to simplify use of $CPPFLAGS in compiler checks, etc., that are easily
64 dnl confused by the quotes (which require backslashes to keep them usable).
65 AC_DEFUN([CF_ADD_CFLAGS],
66 [
67 cf_fix_cppflags=no
68 cf_new_cflags=
69 cf_new_cppflags=
70 cf_new_extra_cppflags=
72 for cf_add_cflags in $1
73 do
74 case $cf_fix_cppflags in
75 no)
76 case $cf_add_cflags in #(vi
77 -undef|-nostdinc*|-I*|-D*|-U*|-E|-P|-C) #(vi
78 case $cf_add_cflags in
79 -D*)
80 cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^-D[[^=]]*='\''\"[[^"]]*//'`
82 test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
83 && test -z "${cf_tst_cflags}" \
84 && cf_fix_cppflags=yes
86 if test $cf_fix_cppflags = yes ; then
87 cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
88 continue
89 elif test "${cf_tst_cflags}" = "\"'" ; then
90 cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
91 continue
92 fi
93 ;;
94 esac
95 case "$CPPFLAGS" in
96 *$cf_add_cflags) #(vi
97 ;;
98 *) #(vi
99 case $cf_add_cflags in #(vi
100 -D*)
101 cf_tst_cppflags=`echo "x$cf_add_cflags" | sed -e 's/^...//' -e 's/=.*//'`
102 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,$cf_tst_cppflags)
103 ;;
104 esac
105 cf_new_cppflags="$cf_new_cppflags $cf_add_cflags"
106 ;;
107 esac
108 ;;
109 *)
110 cf_new_cflags="$cf_new_cflags $cf_add_cflags"
111 ;;
112 esac
113 ;;
114 yes)
115 cf_new_extra_cppflags="$cf_new_extra_cppflags $cf_add_cflags"
117 cf_tst_cflags=`echo ${cf_add_cflags} |sed -e 's/^[[^"]]*"'\''//'`
119 test "x${cf_add_cflags}" != "x${cf_tst_cflags}" \
120 && test -z "${cf_tst_cflags}" \
121 && cf_fix_cppflags=no
122 ;;
123 esac
124 done
126 if test -n "$cf_new_cflags" ; then
127 ifelse([$2],,,[CF_VERBOSE(add to \$CFLAGS $cf_new_cflags)])
128 CFLAGS="$CFLAGS $cf_new_cflags"
129 fi
131 if test -n "$cf_new_cppflags" ; then
132 ifelse([$2],,,[CF_VERBOSE(add to \$CPPFLAGS $cf_new_cppflags)])
133 CPPFLAGS="$CPPFLAGS $cf_new_cppflags"
134 fi
136 if test -n "$cf_new_extra_cppflags" ; then
137 ifelse([$2],,,[CF_VERBOSE(add to \$EXTRA_CPPFLAGS $cf_new_extra_cppflags)])
138 EXTRA_CPPFLAGS="$cf_new_extra_cppflags $EXTRA_CPPFLAGS"
139 fi
141 AC_SUBST(EXTRA_CPPFLAGS)
143 ])dnl
144 dnl ---------------------------------------------------------------------------
145 dnl CF_ARG_DISABLE version: 3 updated: 1999/03/30 17:24:31
146 dnl --------------
147 dnl Allow user to disable a normally-on option.
148 AC_DEFUN([CF_ARG_DISABLE],
149 [CF_ARG_OPTION($1,[$2],[$3],[$4],yes)])dnl
150 dnl ---------------------------------------------------------------------------
151 dnl CF_ARG_OPTION version: 4 updated: 2010/05/26 05:38:42
152 dnl -------------
153 dnl Restricted form of AC_ARG_ENABLE that ensures user doesn't give bogus
154 dnl values.
155 dnl
156 dnl Parameters:
157 dnl $1 = option name
158 dnl $2 = help-string
159 dnl $3 = action to perform if option is not default
160 dnl $4 = action if perform if option is default
161 dnl $5 = default option value (either 'yes' or 'no')
162 AC_DEFUN([CF_ARG_OPTION],
163 [AC_ARG_ENABLE([$1],[$2],[test "$enableval" != ifelse([$5],no,yes,no) && enableval=ifelse([$5],no,no,yes)
164 if test "$enableval" != "$5" ; then
165 ifelse([$3],,[ :]dnl
166 ,[ $3]) ifelse([$4],,,[
167 else
168 $4])
169 fi],[enableval=$5 ifelse([$4],,,[
170 $4
171 ])dnl
172 ])])dnl
173 dnl ---------------------------------------------------------------------------
174 dnl CF_CC_ENV_FLAGS version: 1 updated: 2012/10/03 05:25:49
175 dnl ---------------
176 dnl Check for user's environment-breakage by stuffing CFLAGS/CPPFLAGS content
177 dnl into CC. This will not help with broken scripts that wrap the compiler with
178 dnl options, but eliminates a more common category of user confusion.
179 AC_DEFUN([CF_CC_ENV_FLAGS],
180 [
181 # This should have been defined by AC_PROG_CC
182 : ${CC:=cc}
184 AC_MSG_CHECKING(\$CC variable)
185 case "$CC" in #(vi
186 *[[\ \ ]]-[[IUD]]*)
187 AC_MSG_RESULT(broken)
188 AC_MSG_WARN(your environment misuses the CC variable to hold CFLAGS/CPPFLAGS options)
189 # humor him...
190 cf_flags=`echo "$CC" | sed -e 's/^[[^ ]]*[[ ]]//'`
191 CC=`echo "$CC" | sed -e 's/[[ ]].*//'`
192 CF_ADD_CFLAGS($cf_flags)
193 ;;
194 *)
195 AC_MSG_RESULT(ok)
196 ;;
197 esac
198 ])dnl
199 dnl ---------------------------------------------------------------------------
200 dnl CF_CHECK_CACHE version: 12 updated: 2012/10/02 20:55:03
201 dnl --------------
202 dnl Check if we're accidentally using a cache from a different machine.
203 dnl Derive the system name, as a check for reusing the autoconf cache.
204 dnl
205 dnl If we've packaged config.guess and config.sub, run that (since it does a
206 dnl better job than uname). Normally we'll use AC_CANONICAL_HOST, but allow
207 dnl an extra parameter that we may override, e.g., for AC_CANONICAL_SYSTEM
208 dnl which is useful in cross-compiles.
209 dnl
210 dnl Note: we would use $ac_config_sub, but that is one of the places where
211 dnl autoconf 2.5x broke compatibility with autoconf 2.13
212 AC_DEFUN([CF_CHECK_CACHE],
213 [
214 if test -f $srcdir/config.guess || test -f $ac_aux_dir/config.guess ; then
215 ifelse([$1],,[AC_CANONICAL_HOST],[$1])
216 system_name="$host_os"
217 else
218 system_name="`(uname -s -r) 2>/dev/null`"
219 if test -z "$system_name" ; then
220 system_name="`(hostname) 2>/dev/null`"
221 fi
222 fi
223 test -n "$system_name" && AC_DEFINE_UNQUOTED(SYSTEM_NAME,"$system_name",[Define to the system name.])
224 AC_CACHE_VAL(cf_cv_system_name,[cf_cv_system_name="$system_name"])
226 test -z "$system_name" && system_name="$cf_cv_system_name"
227 test -n "$cf_cv_system_name" && AC_MSG_RESULT(Configuring for $cf_cv_system_name)
229 if test ".$system_name" != ".$cf_cv_system_name" ; then
230 AC_MSG_RESULT(Cached system name ($system_name) does not agree with actual ($cf_cv_system_name))
231 AC_MSG_ERROR("Please remove config.cache and try again.")
232 fi
233 ])dnl
234 dnl ---------------------------------------------------------------------------
235 dnl CF_CLANG_COMPILER version: 2 updated: 2013/11/19 19:23:35
236 dnl -----------------
237 dnl Check if the given compiler is really clang. clang's C driver defines
238 dnl __GNUC__ (fooling the configure script into setting $GCC to yes) but does
239 dnl not ignore some gcc options.
240 dnl
241 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
242 dnl ensure that it is not mistaken for gcc/g++. It is normally invoked from
243 dnl the wrappers for gcc and g++ warnings.
244 dnl
245 dnl $1 = GCC (default) or GXX
246 dnl $2 = CLANG_COMPILER (default)
247 dnl $3 = CFLAGS (default) or CXXFLAGS
248 AC_DEFUN([CF_CLANG_COMPILER],[
249 ifelse([$2],,CLANG_COMPILER,[$2])=no
251 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
252 AC_MSG_CHECKING(if this is really Clang ifelse([$1],GXX,C++,C) compiler)
253 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
254 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -Qunused-arguments"
255 AC_TRY_COMPILE([],[
256 #ifdef __clang__
257 #else
258 make an error
259 #endif
260 ],[ifelse([$2],,CLANG_COMPILER,[$2])=yes
261 cf_save_CFLAGS="$cf_save_CFLAGS -Qunused-arguments"
262 ],[])
263 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
264 AC_MSG_RESULT($ifelse([$2],,CLANG_COMPILER,[$2]))
265 fi
266 ])
267 dnl ---------------------------------------------------------------------------
268 dnl CF_DISABLE_ECHO version: 12 updated: 2012/10/06 16:30:28
269 dnl ---------------
270 dnl You can always use "make -n" to see the actual options, but it's hard to
271 dnl pick out/analyze warning messages when the compile-line is long.
272 dnl
273 dnl Sets:
274 dnl ECHO_LT - symbol to control if libtool is verbose
275 dnl ECHO_LD - symbol to prefix "cc -o" lines
276 dnl RULE_CC - symbol to put before implicit "cc -c" lines (e.g., .c.o)
277 dnl SHOW_CC - symbol to put before explicit "cc -c" lines
278 dnl ECHO_CC - symbol to put before any "cc" line
279 dnl
280 AC_DEFUN([CF_DISABLE_ECHO],[
281 AC_MSG_CHECKING(if you want to see long compiling messages)
282 CF_ARG_DISABLE(echo,
283 [ --disable-echo do not display "compiling" commands],
284 [
285 ECHO_LT='--silent'
286 ECHO_LD='@echo linking [$]@;'
287 RULE_CC='@echo compiling [$]<'
288 SHOW_CC='@echo compiling [$]@'
289 ECHO_CC='@'
290 ],[
291 ECHO_LT=''
292 ECHO_LD=''
293 RULE_CC=''
294 SHOW_CC=''
295 ECHO_CC=''
296 ])
297 AC_MSG_RESULT($enableval)
298 AC_SUBST(ECHO_LT)
299 AC_SUBST(ECHO_LD)
300 AC_SUBST(RULE_CC)
301 AC_SUBST(SHOW_CC)
302 AC_SUBST(ECHO_CC)
303 ])dnl
304 dnl ---------------------------------------------------------------------------
305 dnl CF_DISABLE_LEAKS version: 7 updated: 2012/10/02 20:55:03
306 dnl ----------------
307 dnl Combine no-leak checks with the libraries or tools that are used for the
308 dnl checks.
309 AC_DEFUN([CF_DISABLE_LEAKS],[
311 AC_REQUIRE([CF_WITH_DMALLOC])
312 AC_REQUIRE([CF_WITH_DBMALLOC])
313 AC_REQUIRE([CF_WITH_VALGRIND])
315 AC_MSG_CHECKING(if you want to perform memory-leak testing)
316 AC_ARG_ENABLE(leaks,
317 [ --disable-leaks test: free permanent memory, analyze leaks],
318 [if test "x$enableval" = xno; then with_no_leaks=yes; else with_no_leaks=no; fi],
319 : ${with_no_leaks:=no})
320 AC_MSG_RESULT($with_no_leaks)
322 if test "$with_no_leaks" = yes ; then
323 AC_DEFINE(NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
324 AC_DEFINE(YY_NO_LEAKS,1,[Define to 1 if you want to perform memory-leak testing.])
325 fi
326 ])dnl
327 dnl ---------------------------------------------------------------------------
328 dnl CF_GCC_ATTRIBUTES version: 16 updated: 2012/10/02 20:55:03
329 dnl -----------------
330 dnl Test for availability of useful gcc __attribute__ directives to quiet
331 dnl compiler warnings. Though useful, not all are supported -- and contrary
332 dnl to documentation, unrecognized directives cause older compilers to barf.
333 AC_DEFUN([CF_GCC_ATTRIBUTES],
334 [
335 if test "$GCC" = yes
336 then
337 cat > conftest.i <<EOF
338 #ifndef GCC_PRINTF
339 #define GCC_PRINTF 0
340 #endif
341 #ifndef GCC_SCANF
342 #define GCC_SCANF 0
343 #endif
344 #ifndef GCC_NORETURN
345 #define GCC_NORETURN /* nothing */
346 #endif
347 #ifndef GCC_UNUSED
348 #define GCC_UNUSED /* nothing */
349 #endif
350 EOF
351 if test "$GCC" = yes
352 then
353 AC_CHECKING([for $CC __attribute__ directives])
354 cat > conftest.$ac_ext <<EOF
355 #line __oline__ "${as_me:-configure}"
356 #include "confdefs.h"
357 #include "conftest.h"
358 #include "conftest.i"
359 #if GCC_PRINTF
360 #define GCC_PRINTFLIKE(fmt,var) __attribute__((format(printf,fmt,var)))
361 #else
362 #define GCC_PRINTFLIKE(fmt,var) /*nothing*/
363 #endif
364 #if GCC_SCANF
365 #define GCC_SCANFLIKE(fmt,var) __attribute__((format(scanf,fmt,var)))
366 #else
367 #define GCC_SCANFLIKE(fmt,var) /*nothing*/
368 #endif
369 extern void wow(char *,...) GCC_SCANFLIKE(1,2);
370 extern void oops(char *,...) GCC_PRINTFLIKE(1,2) GCC_NORETURN;
371 extern void foo(void) GCC_NORETURN;
372 int main(int argc GCC_UNUSED, char *argv[[]] GCC_UNUSED) { return 0; }
373 EOF
374 cf_printf_attribute=no
375 cf_scanf_attribute=no
376 for cf_attribute in scanf printf unused noreturn
377 do
378 CF_UPPER(cf_ATTRIBUTE,$cf_attribute)
379 cf_directive="__attribute__(($cf_attribute))"
380 echo "checking for $CC $cf_directive" 1>&AC_FD_CC
382 case $cf_attribute in #(vi
383 printf) #(vi
384 cf_printf_attribute=yes
385 cat >conftest.h <<EOF
386 #define GCC_$cf_ATTRIBUTE 1
387 EOF
388 ;;
389 scanf) #(vi
390 cf_scanf_attribute=yes
391 cat >conftest.h <<EOF
392 #define GCC_$cf_ATTRIBUTE 1
393 EOF
394 ;;
395 *) #(vi
396 cat >conftest.h <<EOF
397 #define GCC_$cf_ATTRIBUTE $cf_directive
398 EOF
399 ;;
400 esac
402 if AC_TRY_EVAL(ac_compile); then
403 test -n "$verbose" && AC_MSG_RESULT(... $cf_attribute)
404 cat conftest.h >>confdefs.h
405 case $cf_attribute in #(vi
406 noreturn) #(vi
407 AC_DEFINE_UNQUOTED(GCC_NORETURN,$cf_directive,[Define to noreturn-attribute for gcc])
408 ;;
409 printf) #(vi
410 cf_value='/* nothing */'
411 if test "$cf_printf_attribute" != no ; then
412 cf_value='__attribute__((format(printf,fmt,var)))'
413 AC_DEFINE(GCC_PRINTF,1,[Define to 1 if the compiler supports gcc-like printf attribute.])
414 fi
415 AC_DEFINE_UNQUOTED(GCC_PRINTFLIKE(fmt,var),$cf_value,[Define to printf-attribute for gcc])
416 ;;
417 scanf) #(vi
418 cf_value='/* nothing */'
419 if test "$cf_scanf_attribute" != no ; then
420 cf_value='__attribute__((format(scanf,fmt,var)))'
421 AC_DEFINE(GCC_SCANF,1,[Define to 1 if the compiler supports gcc-like scanf attribute.])
422 fi
423 AC_DEFINE_UNQUOTED(GCC_SCANFLIKE(fmt,var),$cf_value,[Define to sscanf-attribute for gcc])
424 ;;
425 unused) #(vi
426 AC_DEFINE_UNQUOTED(GCC_UNUSED,$cf_directive,[Define to unused-attribute for gcc])
427 ;;
428 esac
429 fi
430 done
431 else
432 fgrep define conftest.i >>confdefs.h
433 fi
434 rm -rf conftest*
435 fi
436 ])dnl
437 dnl ---------------------------------------------------------------------------
438 dnl CF_GCC_VERSION version: 7 updated: 2012/10/18 06:46:33
439 dnl --------------
440 dnl Find version of gcc
441 AC_DEFUN([CF_GCC_VERSION],[
442 AC_REQUIRE([AC_PROG_CC])
443 GCC_VERSION=none
444 if test "$GCC" = yes ; then
445 AC_MSG_CHECKING(version of $CC)
446 GCC_VERSION="`${CC} --version 2>/dev/null | sed -e '2,$d' -e 's/^.*(GCC[[^)]]*) //' -e 's/^.*(Debian[[^)]]*) //' -e 's/^[[^0-9.]]*//' -e 's/[[^0-9.]].*//'`"
447 test -z "$GCC_VERSION" && GCC_VERSION=unknown
448 AC_MSG_RESULT($GCC_VERSION)
449 fi
450 ])dnl
451 dnl ---------------------------------------------------------------------------
452 dnl CF_GCC_WARNINGS version: 31 updated: 2013/11/19 19:23:35
453 dnl ---------------
454 dnl Check if the compiler supports useful warning options. There's a few that
455 dnl we don't use, simply because they're too noisy:
456 dnl
457 dnl -Wconversion (useful in older versions of gcc, but not in gcc 2.7.x)
458 dnl -Wredundant-decls (system headers make this too noisy)
459 dnl -Wtraditional (combines too many unrelated messages, only a few useful)
460 dnl -Wwrite-strings (too noisy, but should review occasionally). This
461 dnl is enabled for ncurses using "--enable-const".
462 dnl -pedantic
463 dnl
464 dnl Parameter:
465 dnl $1 is an optional list of gcc warning flags that a particular
466 dnl application might want to use, e.g., "no-unused" for
467 dnl -Wno-unused
468 dnl Special:
469 dnl If $with_ext_const is "yes", add a check for -Wwrite-strings
470 dnl
471 AC_DEFUN([CF_GCC_WARNINGS],
472 [
473 AC_REQUIRE([CF_GCC_VERSION])
474 CF_INTEL_COMPILER(GCC,INTEL_COMPILER,CFLAGS)
475 CF_CLANG_COMPILER(GCC,CLANG_COMPILER,CFLAGS)
477 cat > conftest.$ac_ext <<EOF
478 #line __oline__ "${as_me:-configure}"
479 int main(int argc, char *argv[[]]) { return (argv[[argc-1]] == 0) ; }
480 EOF
482 if test "$INTEL_COMPILER" = yes
483 then
484 # The "-wdXXX" options suppress warnings:
485 # remark #1419: external declaration in primary source file
486 # remark #1683: explicit conversion of a 64-bit integral type to a smaller integral type (potential portability problem)
487 # remark #1684: conversion from pointer to same-sized integral type (potential portability problem)
488 # remark #193: zero used for undefined preprocessing identifier
489 # remark #593: variable "curs_sb_left_arrow" was set but never used
490 # remark #810: conversion from "int" to "Dimension={unsigned short}" may lose significant bits
491 # remark #869: parameter "tw" was never referenced
492 # remark #981: operands are evaluated in unspecified order
493 # warning #279: controlling expression is constant
495 AC_CHECKING([for $CC warning options])
496 cf_save_CFLAGS="$CFLAGS"
497 EXTRA_CFLAGS="-Wall"
498 for cf_opt in \
499 wd1419 \
500 wd1683 \
501 wd1684 \
502 wd193 \
503 wd593 \
504 wd279 \
505 wd810 \
506 wd869 \
507 wd981
508 do
509 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
510 if AC_TRY_EVAL(ac_compile); then
511 test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
512 EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
513 fi
514 done
515 CFLAGS="$cf_save_CFLAGS"
517 elif test "$GCC" = yes
518 then
519 AC_CHECKING([for $CC warning options])
520 cf_save_CFLAGS="$CFLAGS"
521 EXTRA_CFLAGS=
522 cf_warn_CONST=""
523 test "$with_ext_const" = yes && cf_warn_CONST="Wwrite-strings"
524 cf_gcc_warnings="Wignored-qualifiers Wlogical-op Wvarargs"
525 test "x$CLANG_COMPILER" = xyes && cf_gcc_warnings=
526 for cf_opt in W Wall \
527 Wbad-function-cast \
528 Wcast-align \
529 Wcast-qual \
530 Wdeclaration-after-statement \
531 Wextra \
532 Winline \
533 Wmissing-declarations \
534 Wmissing-prototypes \
535 Wnested-externs \
536 Wpointer-arith \
537 Wshadow \
538 Wstrict-prototypes \
539 Wundef $cf_gcc_warnings $cf_warn_CONST $1
540 do
541 CFLAGS="$cf_save_CFLAGS $EXTRA_CFLAGS -$cf_opt"
542 if AC_TRY_EVAL(ac_compile); then
543 test -n "$verbose" && AC_MSG_RESULT(... -$cf_opt)
544 case $cf_opt in #(vi
545 Wcast-qual) #(vi
546 CPPFLAGS="$CPPFLAGS -DXTSTRINGDEFINES"
547 ;;
548 Winline) #(vi
549 case $GCC_VERSION in
550 [[34]].*)
551 CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
552 continue;;
553 esac
554 ;;
555 Wpointer-arith) #(vi
556 case $GCC_VERSION in
557 [[12]].*)
558 CF_VERBOSE(feature is broken in gcc $GCC_VERSION)
559 continue;;
560 esac
561 ;;
562 esac
563 EXTRA_CFLAGS="$EXTRA_CFLAGS -$cf_opt"
564 fi
565 done
566 CFLAGS="$cf_save_CFLAGS"
567 fi
568 rm -rf conftest*
570 AC_SUBST(EXTRA_CFLAGS)
571 ])dnl
572 dnl ---------------------------------------------------------------------------
573 dnl CF_GNU_SOURCE version: 6 updated: 2005/07/09 13:23:07
574 dnl -------------
575 dnl Check if we must define _GNU_SOURCE to get a reasonable value for
576 dnl _XOPEN_SOURCE, upon which many POSIX definitions depend. This is a defect
577 dnl (or misfeature) of glibc2, which breaks portability of many applications,
578 dnl since it is interwoven with GNU extensions.
579 dnl
580 dnl Well, yes we could work around it...
581 AC_DEFUN([CF_GNU_SOURCE],
582 [
583 AC_CACHE_CHECK(if we must define _GNU_SOURCE,cf_cv_gnu_source,[
584 AC_TRY_COMPILE([#include <sys/types.h>],[
585 #ifndef _XOPEN_SOURCE
586 make an error
587 #endif],
588 [cf_cv_gnu_source=no],
589 [cf_save="$CPPFLAGS"
590 CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
591 AC_TRY_COMPILE([#include <sys/types.h>],[
592 #ifdef _XOPEN_SOURCE
593 make an error
594 #endif],
595 [cf_cv_gnu_source=no],
596 [cf_cv_gnu_source=yes])
597 CPPFLAGS="$cf_save"
598 ])
599 ])
600 test "$cf_cv_gnu_source" = yes && CPPFLAGS="$CPPFLAGS -D_GNU_SOURCE"
601 ])dnl
602 dnl ---------------------------------------------------------------------------
603 dnl CF_INTEL_COMPILER version: 6 updated: 2014/03/17 13:13:07
604 dnl -----------------
605 dnl Check if the given compiler is really the Intel compiler for Linux. It
606 dnl tries to imitate gcc, but does not return an error when it finds a mismatch
607 dnl between prototypes, e.g., as exercised by CF_MISSING_CHECK.
608 dnl
609 dnl This macro should be run "soon" after AC_PROG_CC or AC_PROG_CPLUSPLUS, to
610 dnl ensure that it is not mistaken for gcc/g++. It is normally invoked from
611 dnl the wrappers for gcc and g++ warnings.
612 dnl
613 dnl $1 = GCC (default) or GXX
614 dnl $2 = INTEL_COMPILER (default) or INTEL_CPLUSPLUS
615 dnl $3 = CFLAGS (default) or CXXFLAGS
616 AC_DEFUN([CF_INTEL_COMPILER],[
617 AC_REQUIRE([AC_CANONICAL_HOST])
618 ifelse([$2],,INTEL_COMPILER,[$2])=no
620 if test "$ifelse([$1],,[$1],GCC)" = yes ; then
621 case $host_os in
622 linux*|gnu*)
623 AC_MSG_CHECKING(if this is really Intel ifelse([$1],GXX,C++,C) compiler)
624 cf_save_CFLAGS="$ifelse([$3],,CFLAGS,[$3])"
625 ifelse([$3],,CFLAGS,[$3])="$ifelse([$3],,CFLAGS,[$3]) -no-gcc"
626 AC_TRY_COMPILE([],[
627 #ifdef __INTEL_COMPILER
628 #else
629 make an error
630 #endif
631 ],[ifelse([$2],,INTEL_COMPILER,[$2])=yes
632 cf_save_CFLAGS="$cf_save_CFLAGS -we147"
633 ],[])
634 ifelse([$3],,CFLAGS,[$3])="$cf_save_CFLAGS"
635 AC_MSG_RESULT($ifelse([$2],,INTEL_COMPILER,[$2]))
636 ;;
637 esac
638 fi
639 ])dnl
640 dnl ---------------------------------------------------------------------------
641 dnl CF_MAKE_DOCS version: 3 updated: 2014/01/05 13:21:25
642 dnl ------------
643 dnl $1 = name(s) to generate rules for
644 dnl $2 = suffix of corresponding manpages used as input.
645 define([CF_MAKE_DOCS],[
646 test -z "$cf_make_docs" && cf_make_docs=0
648 cf_output=makefile
649 test -f "$cf_output" || cf_output=Makefile
651 if test "$cf_make_docs" = 0
652 then
653 cat >>$cf_output <<"CF_EOF"
654 ################################################################################
655 .SUFFIXES : .html .$2 .man .ps .pdf .txt
657 .$2.html :
658 GROFF_NO_SGR=stupid [$](SHELL) -c "tbl [$]*.$2 | groff -P -o0 -I$*_ -Thtml -man" >[$]@
660 .$2.ps :
661 [$](SHELL) -c "tbl [$]*.$2 | groff -man" >[$]@
663 .$2.txt :
664 GROFF_NO_SGR=stupid [$](SHELL) -c "tbl [$]*.$2 | nroff -Tascii -man | col -bx" >[$]@
666 .ps.pdf :
667 ps2pdf [$]*.ps
669 CF_EOF
670 cf_make_docs=1
671 fi
673 for cf_name in $1
674 do
675 cat >>$cf_output <<CF_EOF
676 ################################################################################
677 docs-$cf_name \\
678 docs :: $cf_name.html \\
679 $cf_name.pdf \\
680 $cf_name.ps \\
681 $cf_name.txt
683 clean \\
684 docs-clean ::
685 rm -f $cf_name.html $cf_name.pdf $cf_name.ps $cf_name.txt
687 $cf_name.html : $cf_name.\$2
688 $cf_name.pdf : $cf_name.ps
689 $cf_name.ps : $cf_name.\$2
690 $cf_name.txt : $cf_name.\$2
691 CF_EOF
692 done
693 ])dnl
694 dnl ---------------------------------------------------------------------------
695 dnl CF_MAKE_TAGS version: 6 updated: 2010/10/23 15:52:32
696 dnl ------------
697 dnl Generate tags/TAGS targets for makefiles. Do not generate TAGS if we have
698 dnl a monocase filesystem.
699 AC_DEFUN([CF_MAKE_TAGS],[
700 AC_REQUIRE([CF_MIXEDCASE_FILENAMES])
702 AC_CHECK_PROGS(CTAGS, exctags ctags)
703 AC_CHECK_PROGS(ETAGS, exetags etags)
705 AC_CHECK_PROG(MAKE_LOWER_TAGS, ${CTAGS:-ctags}, yes, no)
707 if test "$cf_cv_mixedcase" = yes ; then
708 AC_CHECK_PROG(MAKE_UPPER_TAGS, ${ETAGS:-etags}, yes, no)
709 else
710 MAKE_UPPER_TAGS=no
711 fi
713 if test "$MAKE_UPPER_TAGS" = yes ; then
714 MAKE_UPPER_TAGS=
715 else
716 MAKE_UPPER_TAGS="#"
717 fi
719 if test "$MAKE_LOWER_TAGS" = yes ; then
720 MAKE_LOWER_TAGS=
721 else
722 MAKE_LOWER_TAGS="#"
723 fi
725 AC_SUBST(CTAGS)
726 AC_SUBST(ETAGS)
728 AC_SUBST(MAKE_UPPER_TAGS)
729 AC_SUBST(MAKE_LOWER_TAGS)
730 ])dnl
731 dnl ---------------------------------------------------------------------------
732 dnl CF_MIXEDCASE_FILENAMES version: 6 updated: 2013/10/08 17:47:05
733 dnl ----------------------
734 dnl Check if the file-system supports mixed-case filenames. If we're able to
735 dnl create a lowercase name and see it as uppercase, it doesn't support that.
736 AC_DEFUN([CF_MIXEDCASE_FILENAMES],
737 [
738 AC_CACHE_CHECK(if filesystem supports mixed-case filenames,cf_cv_mixedcase,[
739 if test "$cross_compiling" = yes ; then
740 case $target_alias in #(vi
741 *-os2-emx*|*-msdosdjgpp*|*-cygwin*|*-msys*|*-mingw*|*-uwin*) #(vi
742 cf_cv_mixedcase=no
743 ;;
744 *)
745 cf_cv_mixedcase=yes
746 ;;
747 esac
748 else
749 rm -f conftest CONFTEST
750 echo test >conftest
751 if test -f CONFTEST ; then
752 cf_cv_mixedcase=no
753 else
754 cf_cv_mixedcase=yes
755 fi
756 rm -f conftest CONFTEST
757 fi
758 ])
759 test "$cf_cv_mixedcase" = yes && AC_DEFINE(MIXEDCASE_FILENAMES,1,[Define to 1 if filesystem supports mixed-case filenames.])
760 ])dnl
761 dnl ---------------------------------------------------------------------------
762 dnl CF_MKSTEMP version: 9 updated: 2012/10/03 04:34:49
763 dnl ----------
764 dnl Check for a working mkstemp. This creates two files, checks that they are
765 dnl successfully created and distinct (AmigaOS apparently fails on the last).
766 AC_DEFUN([CF_MKSTEMP],[
767 AC_CACHE_CHECK(for working mkstemp, cf_cv_func_mkstemp,[
768 rm -rf conftest*
769 AC_TRY_RUN([
770 #include <sys/types.h>
771 #include <stdlib.h>
772 #include <stdio.h>
773 #include <string.h>
774 #include <sys/stat.h>
775 int main()
776 {
777 char *tmpl = "conftestXXXXXX";
778 char name[2][80];
779 int n;
780 int result = 0;
781 int fd;
782 struct stat sb;
784 umask(077);
785 for (n = 0; n < 2; ++n) {
786 strcpy(name[n], tmpl);
787 if ((fd = mkstemp(name[n])) >= 0) {
788 if (!strcmp(name[n], tmpl)
789 || stat(name[n], &sb) != 0
790 || (sb.st_mode & S_IFMT) != S_IFREG
791 || (sb.st_mode & 077) != 0) {
792 result = 1;
793 }
794 close(fd);
795 }
796 }
797 if (result == 0
798 && !strcmp(name[0], name[1]))
799 result = 1;
800 ${cf_cv_main_return:-return}(result);
801 }
802 ],[cf_cv_func_mkstemp=yes
803 ],[cf_cv_func_mkstemp=no
804 ],[cf_cv_func_mkstemp=maybe])
805 ])
806 if test "x$cf_cv_func_mkstemp" = xmaybe ; then
807 AC_CHECK_FUNC(mkstemp)
808 fi
809 if test "x$cf_cv_func_mkstemp" = xyes || test "x$ac_cv_func_mkstemp" = xyes ; then
810 AC_DEFINE(HAVE_MKSTEMP,1,[Define to 1 if mkstemp() is available and working.])
811 fi
812 ])dnl
813 dnl ---------------------------------------------------------------------------
814 dnl CF_MSG_LOG version: 5 updated: 2010/10/23 15:52:32
815 dnl ----------
816 dnl Write a debug message to config.log, along with the line number in the
817 dnl configure script.
818 AC_DEFUN([CF_MSG_LOG],[
819 echo "${as_me:-configure}:__oline__: testing $* ..." 1>&AC_FD_CC
820 ])dnl
821 dnl ---------------------------------------------------------------------------
822 dnl CF_NO_LEAKS_OPTION version: 5 updated: 2012/10/02 20:55:03
823 dnl ------------------
824 dnl see CF_WITH_NO_LEAKS
825 AC_DEFUN([CF_NO_LEAKS_OPTION],[
826 AC_MSG_CHECKING(if you want to use $1 for testing)
827 AC_ARG_WITH($1,
828 [$2],
829 [AC_DEFINE_UNQUOTED($3,1,"Define to 1 if you want to use $1 for testing.")ifelse([$4],,[
830 $4
831 ])
832 : ${with_cflags:=-g}
833 : ${with_no_leaks:=yes}
834 with_$1=yes],
835 [with_$1=])
836 AC_MSG_RESULT(${with_$1:-no})
838 case .$with_cflags in #(vi
839 .*-g*)
840 case .$CFLAGS in #(vi
841 .*-g*) #(vi
842 ;;
843 *)
844 CF_ADD_CFLAGS([-g])
845 ;;
846 esac
847 ;;
848 esac
849 ])dnl
850 dnl ---------------------------------------------------------------------------
851 dnl CF_POSIX_C_SOURCE version: 8 updated: 2010/05/26 05:38:42
852 dnl -----------------
853 dnl Define _POSIX_C_SOURCE to the given level, and _POSIX_SOURCE if needed.
854 dnl
855 dnl POSIX.1-1990 _POSIX_SOURCE
856 dnl POSIX.1-1990 and _POSIX_SOURCE and
857 dnl POSIX.2-1992 C-Language _POSIX_C_SOURCE=2
858 dnl Bindings Option
859 dnl POSIX.1b-1993 _POSIX_C_SOURCE=199309L
860 dnl POSIX.1c-1996 _POSIX_C_SOURCE=199506L
861 dnl X/Open 2000 _POSIX_C_SOURCE=200112L
862 dnl
863 dnl Parameters:
864 dnl $1 is the nominal value for _POSIX_C_SOURCE
865 AC_DEFUN([CF_POSIX_C_SOURCE],
866 [
867 cf_POSIX_C_SOURCE=ifelse([$1],,199506L,[$1])
869 cf_save_CFLAGS="$CFLAGS"
870 cf_save_CPPFLAGS="$CPPFLAGS"
872 CF_REMOVE_DEFINE(cf_trim_CFLAGS,$cf_save_CFLAGS,_POSIX_C_SOURCE)
873 CF_REMOVE_DEFINE(cf_trim_CPPFLAGS,$cf_save_CPPFLAGS,_POSIX_C_SOURCE)
875 AC_CACHE_CHECK(if we should define _POSIX_C_SOURCE,cf_cv_posix_c_source,[
876 CF_MSG_LOG(if the symbol is already defined go no further)
877 AC_TRY_COMPILE([#include <sys/types.h>],[
878 #ifndef _POSIX_C_SOURCE
879 make an error
880 #endif],
881 [cf_cv_posix_c_source=no],
882 [cf_want_posix_source=no
883 case .$cf_POSIX_C_SOURCE in #(vi
884 .[[12]]??*) #(vi
885 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
886 ;;
887 .2) #(vi
888 cf_cv_posix_c_source="-D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE"
889 cf_want_posix_source=yes
890 ;;
891 .*)
892 cf_want_posix_source=yes
893 ;;
894 esac
895 if test "$cf_want_posix_source" = yes ; then
896 AC_TRY_COMPILE([#include <sys/types.h>],[
897 #ifdef _POSIX_SOURCE
898 make an error
899 #endif],[],
900 cf_cv_posix_c_source="$cf_cv_posix_c_source -D_POSIX_SOURCE")
901 fi
902 CF_MSG_LOG(ifdef from value $cf_POSIX_C_SOURCE)
903 CFLAGS="$cf_trim_CFLAGS"
904 CPPFLAGS="$cf_trim_CPPFLAGS $cf_cv_posix_c_source"
905 CF_MSG_LOG(if the second compile does not leave our definition intact error)
906 AC_TRY_COMPILE([#include <sys/types.h>],[
907 #ifndef _POSIX_C_SOURCE
908 make an error
909 #endif],,
910 [cf_cv_posix_c_source=no])
911 CFLAGS="$cf_save_CFLAGS"
912 CPPFLAGS="$cf_save_CPPFLAGS"
913 ])
914 ])
916 if test "$cf_cv_posix_c_source" != no ; then
917 CFLAGS="$cf_trim_CFLAGS"
918 CPPFLAGS="$cf_trim_CPPFLAGS"
919 CF_ADD_CFLAGS($cf_cv_posix_c_source)
920 fi
922 ])dnl
923 dnl ---------------------------------------------------------------------------
924 dnl CF_PROG_AWK version: 1 updated: 2006/09/16 11:40:59
925 dnl -----------
926 dnl Check for awk, ensure that the check found something.
927 AC_DEFUN([CF_PROG_AWK],
928 [
929 AC_PROG_AWK
930 test -z "$AWK" && AC_MSG_ERROR(No awk program found)
931 ])dnl
932 dnl ---------------------------------------------------------------------------
933 dnl CF_PROG_CC version: 4 updated: 2014/07/12 18:57:58
934 dnl ----------
935 dnl standard check for CC, plus followup sanity checks
936 dnl $1 = optional parameter to pass to AC_PROG_CC to specify compiler name
937 AC_DEFUN([CF_PROG_CC],[
938 ifelse($1,,[AC_PROG_CC],[AC_PROG_CC($1)])
939 CF_GCC_VERSION
940 CF_ACVERSION_CHECK(2.52,
941 [AC_PROG_CC_STDC],
942 [CF_ANSI_CC_REQD])
943 CF_CC_ENV_FLAGS
944 ])dnl
945 dnl ---------------------------------------------------------------------------
946 dnl CF_PROG_LINT version: 2 updated: 2009/08/12 04:43:14
947 dnl ------------
948 AC_DEFUN([CF_PROG_LINT],
949 [
950 AC_CHECK_PROGS(LINT, tdlint lint alint splint lclint)
951 AC_SUBST(LINT_OPTS)
952 ])dnl
953 dnl ---------------------------------------------------------------------------
954 dnl CF_REMOVE_DEFINE version: 3 updated: 2010/01/09 11:05:50
955 dnl ----------------
956 dnl Remove all -U and -D options that refer to the given symbol from a list
957 dnl of C compiler options. This works around the problem that not all
958 dnl compilers process -U and -D options from left-to-right, so a -U option
959 dnl cannot be used to cancel the effect of a preceding -D option.
960 dnl
961 dnl $1 = target (which could be the same as the source variable)
962 dnl $2 = source (including '$')
963 dnl $3 = symbol to remove
964 define([CF_REMOVE_DEFINE],
965 [
966 $1=`echo "$2" | \
967 sed -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[[ ]]/ /g' \
968 -e 's/-[[UD]]'"$3"'\(=[[^ ]]*\)\?[$]//g'`
969 ])dnl
970 dnl ---------------------------------------------------------------------------
971 dnl CF_TRY_XOPEN_SOURCE version: 1 updated: 2011/10/30 17:09:50
972 dnl -------------------
973 dnl If _XOPEN_SOURCE is not defined in the compile environment, check if we
974 dnl can define it successfully.
975 AC_DEFUN([CF_TRY_XOPEN_SOURCE],[
976 AC_CACHE_CHECK(if we should define _XOPEN_SOURCE,cf_cv_xopen_source,[
977 AC_TRY_COMPILE([
978 #include <stdlib.h>
979 #include <string.h>
980 #include <sys/types.h>
981 ],[
982 #ifndef _XOPEN_SOURCE
983 make an error
984 #endif],
985 [cf_cv_xopen_source=no],
986 [cf_save="$CPPFLAGS"
987 CPPFLAGS="$CPPFLAGS -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
988 AC_TRY_COMPILE([
989 #include <stdlib.h>
990 #include <string.h>
991 #include <sys/types.h>
992 ],[
993 #ifdef _XOPEN_SOURCE
994 make an error
995 #endif],
996 [cf_cv_xopen_source=no],
997 [cf_cv_xopen_source=$cf_XOPEN_SOURCE])
998 CPPFLAGS="$cf_save"
999 ])
1000 ])
1002 if test "$cf_cv_xopen_source" != no ; then
1003 CF_REMOVE_DEFINE(CFLAGS,$CFLAGS,_XOPEN_SOURCE)
1004 CF_REMOVE_DEFINE(CPPFLAGS,$CPPFLAGS,_XOPEN_SOURCE)
1005 cf_temp_xopen_source="-D_XOPEN_SOURCE=$cf_cv_xopen_source"
1006 CF_ADD_CFLAGS($cf_temp_xopen_source)
1007 fi
1008 ])
1009 dnl ---------------------------------------------------------------------------
1010 dnl CF_UPPER version: 5 updated: 2001/01/29 23:40:59
1011 dnl --------
1012 dnl Make an uppercase version of a variable
1013 dnl $1=uppercase($2)
1014 AC_DEFUN([CF_UPPER],
1015 [
1016 $1=`echo "$2" | sed y%abcdefghijklmnopqrstuvwxyz./-%ABCDEFGHIJKLMNOPQRSTUVWXYZ___%`
1017 ])dnl
1018 dnl ---------------------------------------------------------------------------
1019 dnl CF_VERBOSE version: 3 updated: 2007/07/29 09:55:12
1020 dnl ----------
1021 dnl Use AC_VERBOSE w/o the warnings
1022 AC_DEFUN([CF_VERBOSE],
1023 [test -n "$verbose" && echo " $1" 1>&AC_FD_MSG
1024 CF_MSG_LOG([$1])
1025 ])dnl
1026 dnl ---------------------------------------------------------------------------
1027 dnl CF_WITH_DBMALLOC version: 7 updated: 2010/06/21 17:26:47
1028 dnl ----------------
1029 dnl Configure-option for dbmalloc. The optional parameter is used to override
1030 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
1031 AC_DEFUN([CF_WITH_DBMALLOC],[
1032 CF_NO_LEAKS_OPTION(dbmalloc,
1033 [ --with-dbmalloc test: use Conor Cahill's dbmalloc library],
1034 [USE_DBMALLOC])
1036 if test "$with_dbmalloc" = yes ; then
1037 AC_CHECK_HEADER(dbmalloc.h,
1038 [AC_CHECK_LIB(dbmalloc,[debug_malloc]ifelse([$1],,[],[,$1]))])
1039 fi
1040 ])dnl
1041 dnl ---------------------------------------------------------------------------
1042 dnl CF_WITH_DMALLOC version: 7 updated: 2010/06/21 17:26:47
1043 dnl ---------------
1044 dnl Configure-option for dmalloc. The optional parameter is used to override
1045 dnl the updating of $LIBS, e.g., to avoid conflict with subsequent tests.
1046 AC_DEFUN([CF_WITH_DMALLOC],[
1047 CF_NO_LEAKS_OPTION(dmalloc,
1048 [ --with-dmalloc test: use Gray Watson's dmalloc library],
1049 [USE_DMALLOC])
1051 if test "$with_dmalloc" = yes ; then
1052 AC_CHECK_HEADER(dmalloc.h,
1053 [AC_CHECK_LIB(dmalloc,[dmalloc_debug]ifelse([$1],,[],[,$1]))])
1054 fi
1055 ])dnl
1056 dnl ---------------------------------------------------------------------------
1057 dnl CF_WITH_VALGRIND version: 1 updated: 2006/12/14 18:00:21
1058 dnl ----------------
1059 AC_DEFUN([CF_WITH_VALGRIND],[
1060 CF_NO_LEAKS_OPTION(valgrind,
1061 [ --with-valgrind test: use valgrind],
1062 [USE_VALGRIND])
1063 ])dnl
1064 dnl ---------------------------------------------------------------------------
1065 dnl CF_WITH_WARNINGS version: 5 updated: 2004/07/23 14:40:34
1066 dnl ----------------
1067 dnl Combine the checks for gcc features into a configure-script option
1068 dnl
1069 dnl Parameters:
1070 dnl $1 - see CF_GCC_WARNINGS
1071 AC_DEFUN([CF_WITH_WARNINGS],
1072 [
1073 if ( test "$GCC" = yes || test "$GXX" = yes )
1074 then
1075 AC_MSG_CHECKING(if you want to check for gcc warnings)
1076 AC_ARG_WITH(warnings,
1077 [ --with-warnings test: turn on gcc warnings],
1078 [cf_opt_with_warnings=$withval],
1079 [cf_opt_with_warnings=no])
1080 AC_MSG_RESULT($cf_opt_with_warnings)
1081 if test "$cf_opt_with_warnings" != no ; then
1082 CF_GCC_ATTRIBUTES
1083 CF_GCC_WARNINGS([$1])
1084 fi
1085 fi
1086 ])dnl
1087 dnl ---------------------------------------------------------------------------
1088 dnl CF_XOPEN_SOURCE version: 48 updated: 2014/09/01 12:29:14
1089 dnl ---------------
1090 dnl Try to get _XOPEN_SOURCE defined properly that we can use POSIX functions,
1091 dnl or adapt to the vendor's definitions to get equivalent functionality,
1092 dnl without losing the common non-POSIX features.
1093 dnl
1094 dnl Parameters:
1095 dnl $1 is the nominal value for _XOPEN_SOURCE
1096 dnl $2 is the nominal value for _POSIX_C_SOURCE
1097 AC_DEFUN([CF_XOPEN_SOURCE],[
1098 AC_REQUIRE([AC_CANONICAL_HOST])
1100 cf_XOPEN_SOURCE=ifelse([$1],,500,[$1])
1101 cf_POSIX_C_SOURCE=ifelse([$2],,199506L,[$2])
1102 cf_xopen_source=
1104 case $host_os in #(vi
1105 aix[[4-7]]*) #(vi
1106 cf_xopen_source="-D_ALL_SOURCE"
1107 ;;
1108 cygwin|msys) #(vi
1109 cf_XOPEN_SOURCE=600
1110 ;;
1111 darwin[[0-8]].*) #(vi
1112 cf_xopen_source="-D_APPLE_C_SOURCE"
1113 ;;
1114 darwin*) #(vi
1115 cf_xopen_source="-D_DARWIN_C_SOURCE"
1116 cf_XOPEN_SOURCE=
1117 ;;
1118 freebsd*|dragonfly*) #(vi
1119 # 5.x headers associate
1120 # _XOPEN_SOURCE=600 with _POSIX_C_SOURCE=200112L
1121 # _XOPEN_SOURCE=500 with _POSIX_C_SOURCE=199506L
1122 cf_POSIX_C_SOURCE=200112L
1123 cf_XOPEN_SOURCE=600
1124 cf_xopen_source="-D_BSD_TYPES -D__BSD_VISIBLE -D_POSIX_C_SOURCE=$cf_POSIX_C_SOURCE -D_XOPEN_SOURCE=$cf_XOPEN_SOURCE"
1125 ;;
1126 hpux11*) #(vi
1127 cf_xopen_source="-D_HPUX_SOURCE -D_XOPEN_SOURCE=500"
1128 ;;
1129 hpux*) #(vi
1130 cf_xopen_source="-D_HPUX_SOURCE"
1131 ;;
1132 irix[[56]].*) #(vi
1133 cf_xopen_source="-D_SGI_SOURCE"
1134 cf_XOPEN_SOURCE=
1135 ;;
1136 linux*|gnu*|mint*|k*bsd*-gnu) #(vi
1137 CF_GNU_SOURCE
1138 ;;
1139 minix*) #(vi
1140 cf_xopen_source="-D_NETBSD_SOURCE" # POSIX.1-2001 features are ifdef'd with this...
1141 ;;
1142 mirbsd*) #(vi
1143 # setting _XOPEN_SOURCE or _POSIX_SOURCE breaks <sys/select.h> and other headers which use u_int / u_short types
1144 cf_XOPEN_SOURCE=
1145 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
1146 ;;
1147 netbsd*) #(vi
1148 cf_xopen_source="-D_NETBSD_SOURCE" # setting _XOPEN_SOURCE breaks IPv6 for lynx on NetBSD 1.6, breaks xterm, is not needed for ncursesw
1149 ;;
1150 openbsd[[4-9]]*) #(vi
1151 # setting _XOPEN_SOURCE lower than 500 breaks g++ compile with wchar.h, needed for ncursesw
1152 cf_xopen_source="-D_BSD_SOURCE"
1153 cf_XOPEN_SOURCE=600
1154 ;;
1155 openbsd*) #(vi
1156 # setting _XOPEN_SOURCE breaks xterm on OpenBSD 2.8, is not needed for ncursesw
1157 ;;
1158 osf[[45]]*) #(vi
1159 cf_xopen_source="-D_OSF_SOURCE"
1160 ;;
1161 nto-qnx*) #(vi
1162 cf_xopen_source="-D_QNX_SOURCE"
1163 ;;
1164 sco*) #(vi
1165 # setting _XOPEN_SOURCE breaks Lynx on SCO Unix / OpenServer
1166 ;;
1167 solaris2.*) #(vi
1168 cf_xopen_source="-D__EXTENSIONS__"
1169 cf_cv_xopen_source=broken
1170 ;;
1171 sysv4.2uw2.*) # Novell/SCO UnixWare 2.x (tested on 2.1.2)
1172 cf_XOPEN_SOURCE=
1173 cf_POSIX_C_SOURCE=
1174 ;;
1175 *)
1176 CF_TRY_XOPEN_SOURCE
1177 CF_POSIX_C_SOURCE($cf_POSIX_C_SOURCE)
1178 ;;
1179 esac
1181 if test -n "$cf_xopen_source" ; then
1182 CF_ADD_CFLAGS($cf_xopen_source,true)
1183 fi
1185 dnl In anything but the default case, we may have system-specific setting
1186 dnl which is still not guaranteed to provide all of the entrypoints that
1187 dnl _XOPEN_SOURCE would yield.
1188 if test -n "$cf_XOPEN_SOURCE" && test -z "$cf_cv_xopen_source" ; then
1189 AC_MSG_CHECKING(if _XOPEN_SOURCE really is set)
1190 AC_TRY_COMPILE([#include <stdlib.h>],[
1191 #ifndef _XOPEN_SOURCE
1192 make an error
1193 #endif],
1194 [cf_XOPEN_SOURCE_set=yes],
1195 [cf_XOPEN_SOURCE_set=no])
1196 AC_MSG_RESULT($cf_XOPEN_SOURCE_set)
1197 if test $cf_XOPEN_SOURCE_set = yes
1198 then
1199 AC_TRY_COMPILE([#include <stdlib.h>],[
1200 #if (_XOPEN_SOURCE - 0) < $cf_XOPEN_SOURCE
1201 make an error
1202 #endif],
1203 [cf_XOPEN_SOURCE_set_ok=yes],
1204 [cf_XOPEN_SOURCE_set_ok=no])
1205 if test $cf_XOPEN_SOURCE_set_ok = no
1206 then
1207 AC_MSG_WARN(_XOPEN_SOURCE is lower than requested)
1208 fi
1209 else
1210 CF_TRY_XOPEN_SOURCE
1211 fi
1212 fi
1213 ])