]>
Commit | Line | Data |
---|---|---|
b2dad0e3 BK |
1 | dnl aclocal.m4 generated automatically by aclocal 1.4 |
2 | ||
3 | dnl Copyright (C) 1994, 1995-8, 1999 Free Software Foundation, Inc. | |
4 | dnl This file is free software; the Free Software Foundation | |
5 | dnl gives unlimited permission to copy and/or distribute it, | |
6 | dnl with or without modifications, as long as this notice is preserved. | |
7 | ||
8 | dnl This program is distributed in the hope that it will be useful, | |
9 | dnl but WITHOUT ANY WARRANTY, to the extent permitted by law; without | |
10 | dnl even the implied warranty of MERCHANTABILITY or FITNESS FOR A | |
11 | dnl PARTICULAR PURPOSE. | |
12 | ||
13 | dnl | |
14 | dnl Initialize configure bits. | |
15 | dnl | |
16 | dnl Define OPTLEVEL='-O2' if new inlining code present. | |
17 | dnl | |
18 | dnl GLIBCPP_CONFIGURE | |
19 | AC_DEFUN(GLIBCPP_CONFIGURE, [ | |
20 | dnl Default to --enable-multilib | |
21 | AC_ARG_ENABLE(multilib, | |
22 | [ --enable-multilib build hella library versions (default)], | |
23 | [case "${enableval}" in | |
24 | yes) multilib=yes ;; | |
25 | no) multilib=no ;; | |
26 | *) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;; | |
27 | esac], [multilib=yes])dnl | |
28 | ||
29 | dnl We may get other options which we dont document: | |
30 | dnl --with-target-subdir, --with-multisrctop, --with-multisubdir | |
31 | if test "[$]{srcdir}" = "."; then | |
32 | if test "[$]{with_target_subdir}" != "."; then | |
33 | glibcpp_basedir="[$]{srcdir}/[$]{with_multisrctop}../$1" | |
34 | else | |
35 | glibcpp_basedir="[$]{srcdir}/[$]{with_multisrctop}$1" | |
36 | fi | |
37 | else | |
38 | glibcpp_basedir="[$]{srcdir}/$1" | |
39 | fi | |
40 | AC_SUBST(glibcpp_basedir) | |
41 | ||
b2dad0e3 BK |
42 | AM_INIT_AUTOMAKE(libstdc++, 2.90.8) |
43 | ||
28861379 BK |
44 | # Never versions of autoconf add an underscore to these functions. |
45 | # Prevent future problems ... | |
46 | ifdef([AC_PROG_CC_G],[],[define([AC_PROG_CC_G],defn([_AC_PROG_CC_G]))]) | |
47 | ifdef([AC_PROG_CC_GNU],[],[define([AC_PROG_CC_GNU],defn([_AC_PROG_CC_GNU]))]) | |
48 | ifdef([AC_PROG_CXX_G],[],[define([AC_PROG_CXX_G],defn([_AC_PROG_CXX_G]))]) | |
49 | ifdef([AC_PROG_CXX_GNU],[],[define([AC_PROG_CXX_GNU],defn([_AC_PROG_CXX_GNU]))]) | |
5780a46b BK |
50 | |
51 | # AC_PROG_CC | |
52 | ||
b2dad0e3 BK |
53 | # FIXME: We temporarily define our own version of AC_PROG_CC. This is |
54 | # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We | |
55 | # are probably using a cross compiler, which will not be able to fully | |
56 | # link an executable. This should really be fixed in autoconf | |
57 | # itself. | |
58 | ||
59 | AC_DEFUN(LIB_AC_PROG_CC, | |
60 | [AC_BEFORE([$0], [AC_PROG_CPP])dnl | |
61 | dnl Fool anybody using AC_PROG_CC. | |
62 | AC_PROVIDE([AC_PROG_CC]) | |
63 | AC_CHECK_PROG(CC, gcc, gcc) | |
64 | if test -z "$CC"; then | |
65 | AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc) | |
66 | test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH]) | |
67 | fi | |
68 | ||
69 | AC_PROG_CC_GNU | |
70 | ||
71 | if test $ac_cv_prog_gcc = yes; then | |
72 | GCC=yes | |
73 | dnl Check whether -g works, even if CFLAGS is set, in case the package | |
74 | dnl plays around with CFLAGS (such as to build both debugging and | |
75 | dnl normal versions of a library), tasteless as that idea is. | |
76 | ac_test_CFLAGS="${CFLAGS+set}" | |
77 | ac_save_CFLAGS="$CFLAGS" | |
78 | CFLAGS= | |
79 | AC_PROG_CC_G | |
80 | if test "$ac_test_CFLAGS" = set; then | |
81 | CFLAGS="$ac_save_CFLAGS" | |
82 | elif test $ac_cv_prog_cc_g = yes; then | |
83 | CFLAGS="-g -O2" | |
84 | else | |
85 | CFLAGS="-O2" | |
86 | fi | |
87 | else | |
88 | GCC= | |
89 | test "${CFLAGS+set}" = set || CFLAGS="-g" | |
90 | fi | |
91 | ]) | |
92 | ||
93 | LIB_AC_PROG_CC | |
94 | ||
5780a46b BK |
95 | # Can't just call these here as g++ requires libstc++ to be built.... |
96 | # AC_PROG_CXX | |
97 | ||
b2dad0e3 BK |
98 | # Likewise for AC_PROG_CXX. |
99 | AC_DEFUN(LIB_AC_PROG_CXX, | |
100 | [AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl | |
101 | dnl Fool anybody using AC_PROG_CXX. | |
102 | AC_PROVIDE([AC_PROG_CXX]) | |
103 | AC_CHECK_PROGS(CXX, $CCC c++ g++ gcc CC cxx cc++, gcc) | |
104 | test -z "$CXX" && AC_MSG_ERROR([no acceptable c++ found in \$PATH]) | |
105 | ||
106 | AC_PROG_CXX_GNU | |
107 | ||
108 | if test $ac_cv_prog_gxx = yes; then | |
109 | GXX=yes | |
110 | dnl Check whether -g works, even if CXXFLAGS is set, in case the package | |
111 | dnl plays around with CXXFLAGS (such as to build both debugging and | |
112 | dnl normal versions of a library), tasteless as that idea is. | |
113 | ac_test_CXXFLAGS="${CXXFLAGS+set}" | |
114 | ac_save_CXXFLAGS="$CXXFLAGS" | |
115 | CXXFLAGS= | |
116 | AC_PROG_CXX_G | |
117 | if test "$ac_test_CXXFLAGS" = set; then | |
118 | CXXFLAGS="$ac_save_CXXFLAGS" | |
119 | elif test $ac_cv_prog_cxx_g = yes; then | |
120 | CXXFLAGS="-g -O2" | |
121 | else | |
122 | CXXFLAGS="-O2" | |
123 | fi | |
124 | else | |
125 | GXX= | |
126 | test "${CXXFLAGS+set}" = set || CXXFLAGS="-g" | |
127 | fi | |
128 | ]) | |
129 | ||
130 | LIB_AC_PROG_CXX | |
131 | ||
5780a46b BK |
132 | AC_CHECK_TOOL(AS, as) |
133 | AC_CHECK_TOOL(AR, ar) | |
134 | AC_CHECK_TOOL(RANLIB, ranlib, :) | |
135 | ||
136 | AC_PROG_INSTALL | |
b2dad0e3 | 137 | |
5780a46b | 138 | AM_MAINTAINER_MODE |
b2dad0e3 | 139 | |
5780a46b BK |
140 | # We need AC_EXEEXT to keep automake happy in cygnus mode. However, |
141 | # at least currently, we never actually build a program, so we never | |
142 | # need to use $(EXEEXT). Moreover, the test for EXEEXT normally | |
143 | # fails, because we are probably configuring with a cross compiler | |
144 | # which cant create executables. So we include AC_EXEEXT to keep | |
145 | # automake happy, but we dont execute it, since we dont care about | |
146 | # the result. | |
147 | if false; then | |
148 | AC_EXEEXT | |
149 | fi | |
b2dad0e3 | 150 | |
5780a46b BK |
151 | # configure.host sets the following important variables |
152 | # glibcpp_cflags - host specific C compiler flags | |
153 | # glibcpp_cxxflags - host specific C++ compiler flags | |
154 | glibcpp_cflags= | |
155 | glibcpp_cxxflags= | |
b2dad0e3 | 156 | |
5780a46b BK |
157 | . [$]{glibcpp_basedir}/configure.host |
158 | ||
159 | case [$]{glibcpp_basedir} in | |
160 | /* | [A-Za-z]:[/\\]*) libgcj_flagbasedir=[$]{glibcpp_basedir} ;; | |
161 | *) glibcpp_flagbasedir='[$](top_builddir)/'[$]{glibcpp_basedir} ;; | |
162 | esac | |
b2dad0e3 | 163 | |
5780a46b BK |
164 | GLIBCPP_CFLAGS="[$]{glibcpp_cflags}" |
165 | GLIBCPP_CXXFLAGS="[$]{glibcpp_cxxflags}" | |
166 | AC_SUBST(GLIBCPP_CFLAGS) | |
167 | AC_SUBST(GLIBCPP_CXXFLAGS) | |
b2dad0e3 BK |
168 | ]) |
169 | ||
170 | ||
171 | dnl | |
8bd636c5 | 172 | dnl Check to see if g++ can compile this library, and if so, if any version- |
c470c17d BK |
173 | dnl specific precautions need to be taken. |
174 | dnl | |
175 | dnl GLIBCPP_CHECK_COMPILER_VERSION | |
176 | AC_DEFUN(GLIBCPP_CHECK_COMPILER_VERSION, [ | |
c470c17d BK |
177 | # Sanity check that g++ is capable of dealing with v-3. |
178 | AC_MSG_CHECKING([for g++ that will successfully compile this code]) | |
179 | AC_EGREP_CPP([ok], [ | |
180 | #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95) | |
181 | ok | |
182 | #endif | |
183 | ], gpp_satisfactory=yes, AC_MSG_ERROR("please upgrade to gcc-2.95 or above")) | |
184 | AC_MSG_RESULT($gpp_satisfactory) | |
185 | ]) | |
186 | ||
187 | ||
188 | dnl | |
189 | dnl Test for newer compiler features, or features that are present in newer | |
d3a12960 BK |
190 | dnl compiler version but not older compiler versions should be placed |
191 | dnl here. | |
b2dad0e3 | 192 | dnl |
c470c17d BK |
193 | dnl Define WFMT_FLAGS='-fdiagnostics-show-location=once' if possible |
194 | dnl | |
7f586614 BK |
195 | dnl Define WERROR='-Werror' if requested and possible; g++'s that lack the |
196 | dnl new inlining code or the new system_header pragma will die on -Werror. | |
197 | dnl Leave it out by default and use maint-mode to use it. | |
b2dad0e3 | 198 | dnl |
c470c17d BK |
199 | dnl Define SECTION_FLAGS='-ffunction-sections -fdata-sections' if |
200 | dnl compiler supports it. | |
201 | dnl GLIBCPP_CHECK_COMPILER_FEATURES | |
202 | AC_DEFUN(GLIBCPP_CHECK_COMPILER_FEATURES, [ | |
a4e99046 PE |
203 | # All these tests are for C++; save the language and the compiler flags. |
204 | # The CXXFLAGS thing is suspicious, but based on similar bits | |
205 | # found in GLIBCPP_CONFIGURE. | |
206 | AC_LANG_SAVE | |
207 | AC_LANG_CPLUSPLUS | |
208 | ac_test_CXXFLAGS="${CXXFLAGS+set}" | |
209 | ac_save_CXXFLAGS="$CXXFLAGS" | |
a4e99046 | 210 | |
7f586614 BK |
211 | # Check for maintainer-mode bits. |
212 | if test x"$USE_MAINTAINER_MODE" = xno; then | |
213 | WERROR='' | |
8bd636c5 | 214 | else |
7f586614 | 215 | WERROR='-Werror' |
8bd636c5 PE |
216 | fi |
217 | ||
d3a12960 BK |
218 | # Check for more sophisticated diagnostic control. |
219 | AC_MSG_CHECKING([for g++ that supports -fdiagnostics-show-location=once]) | |
0517cb99 | 220 | CXXFLAGS='-Werror -fdiagnostics-show-location=once' |
a4e99046 PE |
221 | AC_TRY_COMPILE(, [int foo; |
222 | ], [ac_gabydiags=yes], [ac_gabydiags=no]) | |
223 | if test "$ac_test_CXXFLAGS" = set; then | |
224 | CXXFLAGS="$ac_save_CXXFLAGS" | |
225 | else | |
226 | # this is the suspicious part | |
227 | CXXFLAGS='' | |
228 | fi | |
229 | if test "$ac_gabydiags" = "yes"; then | |
c470c17d | 230 | WFMT_FLAGS='-fdiagnostics-show-location=once' |
a4e99046 PE |
231 | fi |
232 | AC_MSG_RESULT($ac_gabydiags) | |
233 | ||
c470c17d BK |
234 | # Check for -ffunction-sections -fdata-sections |
235 | AC_MSG_CHECKING([for g++ that supports -ffunction-sections -fdata-sections]) | |
0517cb99 | 236 | CXXFLAGS='-Werror -ffunction-sections -fdata-sections' |
c470c17d BK |
237 | AC_TRY_COMPILE(, [int foo; |
238 | ], [ac_fdsections=yes], [ac_fdsections=no]) | |
239 | if test "$ac_test_CXXFLAGS" = set; then | |
240 | CXXFLAGS="$ac_save_CXXFLAGS" | |
241 | else | |
242 | # this is the suspicious part | |
243 | CXXFLAGS='' | |
244 | fi | |
245 | if test "$ac_fdsections" = "yes"; then | |
246 | SECTION_FLAGS='-ffunction-sections -fdata-sections' | |
247 | fi | |
248 | AC_MSG_RESULT($ac_fdsections) | |
249 | ||
a4e99046 | 250 | AC_LANG_RESTORE |
8bd636c5 | 251 | AC_SUBST(WERROR) |
c470c17d BK |
252 | AC_SUBST(WFMT_FLAGS) |
253 | AC_SUBST(SECTION_FLAGS) | |
b2dad0e3 BK |
254 | ]) |
255 | ||
c470c17d BK |
256 | |
257 | dnl | |
421173e6 PE |
258 | dnl If GNU ld is in use, check to see if tricky linker opts can be used. If |
259 | dnl the native linker is in use, all variables will be defined to something | |
260 | dnl safe (like an empty string). | |
261 | dnl | |
262 | dnl Define SECTION_LDFLAGS='-Wl,--gc-sections' if possible. | |
263 | dnl Define OPT_LDFLAGS='-Wl,-O1' if possible. | |
c470c17d | 264 | dnl |
c470c17d BK |
265 | dnl GLIBCPP_CHECK_LINKER_FEATURES |
266 | AC_DEFUN(GLIBCPP_CHECK_LINKER_FEATURES, [ | |
421173e6 PE |
267 | # If we're not using GNU ld, then there's no point in even trying these |
268 | # tests. Check for that first. We should have already tested for gld | |
269 | # by now (in libtool), but require it now just to be safe... | |
a9117427 BK |
270 | SECTION_LDFLAGS='' |
271 | OPT_LDFLAGS='' | |
421173e6 | 272 | AC_REQUIRE([AC_PROG_LD]) |
a9117427 BK |
273 | if test "$ac_cv_prog_gnu_ld" = "yes"; then |
274 | # GNU ld it is! Joy and bunny rabbits! | |
421173e6 PE |
275 | |
276 | # All these tests are for C++; save the language and the compiler flags. | |
277 | # Need to do this so that g++ won't try to link in libstdc++ | |
278 | ac_test_CFLAGS="${CFLAGS+set}" | |
279 | ac_save_CFLAGS="$CFLAGS" | |
a9117427 BK |
280 | # CFLAGS='-x c++ -Wl,--gc-sections' |
281 | #XXX | |
282 | CFLAGS='' | |
421173e6 PE |
283 | |
284 | # Check for -Wl,--gc-sections | |
e466dc8a BK |
285 | # XXX This test is broken at the moment, as symbols required for |
286 | # linking are now in libsupc++ (not built yet.....). In addition, | |
a9117427 BK |
287 | # this test has cored on solaris in the past. In addition, |
288 | # --gc-sections doesn't really work at the moment (keeps on discarding | |
289 | # used sections, first .eh_frame and now some of the glibc sections for | |
290 | # iconv). Bzzzzt. Thanks for playing, maybe next time. | |
421173e6 PE |
291 | AC_MSG_CHECKING([for ld that supports -Wl,--gc-sections]) |
292 | AC_TRY_RUN([ | |
293 | int main(void) | |
294 | { | |
a9117427 BK |
295 | try { throw 1; } |
296 | catch (...) { }; | |
421173e6 PE |
297 | return 0; |
298 | } | |
e466dc8a | 299 | ], [ac_sectionLDflags=yes],[ac_sectionLFflags=no], [ac_sectionLDflags=yes]) |
421173e6 PE |
300 | if test "$ac_test_CFLAGS" = set; then |
301 | CFLAGS="$ac_save_CFLAGS" | |
302 | else | |
303 | # this is the suspicious part | |
304 | CFLAGS='' | |
305 | fi | |
306 | if test "$ac_sectionLDflags" = "yes"; then | |
a9117427 BK |
307 | # SECTION_LDFLAGS='-Wl,--gc-sections' |
308 | #XXX | |
309 | SECTION_LDFLAGS='' | |
421173e6 PE |
310 | fi |
311 | AC_MSG_RESULT($ac_sectionLDflags) | |
a9117427 | 312 | |
421173e6 | 313 | OPT_LDFLAGS='-Wl,-O1' |
c470c17d | 314 | |
421173e6 | 315 | fi |
c470c17d | 316 | AC_SUBST(SECTION_LDFLAGS) |
421173e6 | 317 | AC_SUBST(OPT_LDFLAGS) |
c470c17d BK |
318 | ]) |
319 | ||
320 | ||
b2dad0e3 | 321 | dnl |
11fc1858 | 322 | dnl Check to see if the (math function) argument passed is |
38bd7296 BK |
323 | dnl 1) declared when using the c++ compiler |
324 | dnl 2) has "C" linkage | |
325 | dnl | |
326 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
327 | dnl | |
328 | dnl argument 1 is name of function to check | |
329 | dnl | |
330 | dnl ASSUMES argument is a math function with ONE parameter | |
331 | dnl | |
332 | dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1 | |
333 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, [ | |
38bd7296 | 334 | AC_MSG_CHECKING([for $1 declaration]) |
421173e6 PE |
335 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ |
336 | AC_LANG_SAVE | |
337 | AC_LANG_CPLUSPLUS | |
338 | AC_TRY_COMPILE([#include <math.h>], | |
339 | [ $1(0);], | |
340 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
341 | AC_LANG_RESTORE | |
342 | ]) | |
343 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) | |
344 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
38bd7296 BK |
345 | AC_CHECK_FUNCS($1) |
346 | fi | |
347 | ]) | |
348 | ||
349 | ||
350 | dnl | |
11fc1858 | 351 | dnl Check to see if the (math function) argument passed is |
38bd7296 BK |
352 | dnl 1) declared when using the c++ compiler |
353 | dnl 2) has "C" linkage | |
354 | dnl | |
355 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
356 | dnl | |
357 | dnl argument 1 is name of function to check | |
358 | dnl | |
359 | dnl ASSUMES argument is a math function with TWO parameters | |
360 | dnl | |
361 | dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2 | |
362 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2, [ | |
38bd7296 | 363 | AC_MSG_CHECKING([for $1 declaration]) |
421173e6 PE |
364 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ |
365 | AC_LANG_SAVE | |
366 | AC_LANG_CPLUSPLUS | |
367 | AC_TRY_COMPILE([#include <math.h>], | |
368 | [ $1(0, 0);], | |
369 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
370 | AC_LANG_RESTORE | |
371 | ]) | |
372 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) | |
373 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
38bd7296 BK |
374 | AC_CHECK_FUNCS($1) |
375 | fi | |
376 | ]) | |
377 | ||
378 | ||
379 | dnl | |
11fc1858 | 380 | dnl Check to see if the (math function) argument passed is |
38bd7296 BK |
381 | dnl 1) declared when using the c++ compiler |
382 | dnl 2) has "C" linkage | |
383 | dnl | |
384 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
385 | dnl | |
386 | dnl argument 1 is name of function to check | |
387 | dnl | |
388 | dnl ASSUMES argument is a math function with THREE parameters | |
389 | dnl | |
390 | dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3 | |
391 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3, [ | |
38bd7296 | 392 | AC_MSG_CHECKING([for $1 declaration]) |
421173e6 PE |
393 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ |
394 | AC_LANG_SAVE | |
395 | AC_LANG_CPLUSPLUS | |
396 | AC_TRY_COMPILE([#include <math.h>], | |
397 | [ $1(0, 0, 0);], | |
398 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
399 | AC_LANG_RESTORE | |
400 | ]) | |
401 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) | |
402 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
38bd7296 BK |
403 | AC_CHECK_FUNCS($1) |
404 | fi | |
405 | ]) | |
406 | ||
407 | ||
11fc1858 BK |
408 | dnl |
409 | dnl Because the builtins are picky picky picky about the arguments they take, | |
410 | dnl do an explict linkage tests here. | |
411 | dnl Check to see if the (math function) argument passed is | |
412 | dnl 1) declared when using the c++ compiler | |
413 | dnl 2) has "C" linkage | |
414 | dnl | |
415 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
416 | dnl | |
417 | dnl argument 1 is name of function to check | |
418 | dnl | |
419 | dnl ASSUMES argument is a math function with ONE parameter | |
420 | dnl | |
421 | dnl GLIBCPP_CHECK_BUILTIN_MATH_DECL_LINKAGE_1 | |
422 | AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1, [ | |
11fc1858 | 423 | AC_MSG_CHECKING([for $1 declaration]) |
421173e6 PE |
424 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ |
425 | AC_LANG_SAVE | |
426 | AC_LANG_CPLUSPLUS | |
427 | AC_TRY_COMPILE([#include <math.h>], | |
428 | [ $1(0);], | |
429 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
430 | AC_LANG_RESTORE | |
431 | ]) | |
432 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) | |
433 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
11fc1858 | 434 | AC_MSG_CHECKING([for $1 linkage]) |
421173e6 | 435 | AC_CACHE_VAL(glibcpp_cv_func_$1_link, [ |
11fc1858 | 436 | AC_TRY_LINK([#include <math.h>], |
421173e6 PE |
437 | [ $1(0);], |
438 | [glibcpp_cv_func_$1_link=yes], [glibcpp_cv_func_$1_link=no]) | |
439 | ]) | |
440 | AC_MSG_RESULT($glibcpp_cv_func_$1_link) | |
441 | if test x$glibcpp_cv_func_$1_link = x"yes"; then | |
11fc1858 BK |
442 | ac_tr_func=HAVE_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` |
443 | AC_DEFINE_UNQUOTED(${ac_tr_func}) | |
444 | fi | |
445 | fi | |
446 | ]) | |
447 | ||
448 | ||
449 | dnl | |
450 | dnl Check to see what builtin math functions are supported | |
451 | dnl | |
452 | dnl check for __builtin_abs | |
453 | dnl check for __builtin_fabsf | |
454 | dnl check for __builtin_fabs | |
455 | dnl check for __builtin_fabl | |
456 | dnl check for __builtin_labs | |
457 | dnl check for __builtin_sqrtf | |
458 | dnl check for __builtin_sqrtl | |
459 | dnl check for __builtin_fsqrt | |
460 | dnl check for __builtin_sinf | |
461 | dnl check for __builtin_sin | |
462 | dnl check for __builtin_sinl | |
463 | dnl check for __builtin_cosf | |
464 | dnl check for __builtin_cos | |
465 | dnl check for __builtin_cosl | |
466 | dnl | |
467 | dnl GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT | |
468 | AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT, [ | |
469 | dnl Test for builtin math functions. | |
470 | dnl These are made in gcc/c-common.c | |
471 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_abs) | |
472 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsf) | |
473 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabs) | |
474 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsl) | |
475 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_labs) | |
476 | ||
477 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtf) | |
478 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fsqrt) | |
479 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtl) | |
480 | ||
481 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinf) | |
482 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sin) | |
483 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinl) | |
484 | ||
485 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosf) | |
486 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cos) | |
487 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosl) | |
488 | ||
489 | dnl There is, without a doubt, a more elegant way to have these | |
490 | dnl names exported so that they won't be stripped out of acconfig.h by | |
491 | dnl autoheader. I leave this as an exercise to somebody less frustrated | |
492 | dnl than I.... please email the libstdc++ list if you can figure out a | |
493 | dnl more elegant approach (see autoconf/acgen.m4 and specifically | |
494 | dnl AC_CHECK_FUNC for things to steal.) | |
495 | dummyvar=no | |
496 | if test x$dummyvar = x"yes"; then | |
497 | AC_DEFINE(HAVE___BUILTIN_ABS) | |
498 | AC_DEFINE(HAVE___BUILTIN_LABS) | |
499 | AC_DEFINE(HAVE___BUILTIN_COS) | |
500 | AC_DEFINE(HAVE___BUILTIN_COSF) | |
501 | AC_DEFINE(HAVE___BUILTIN_COSL) | |
502 | AC_DEFINE(HAVE___BUILTIN_FABS) | |
503 | AC_DEFINE(HAVE___BUILTIN_FABSF) | |
504 | AC_DEFINE(HAVE___BUILTIN_FABSL) | |
505 | AC_DEFINE(HAVE___BUILTIN_SIN) | |
506 | AC_DEFINE(HAVE___BUILTIN_SINF) | |
507 | AC_DEFINE(HAVE___BUILTIN_SINL) | |
508 | AC_DEFINE(HAVE___BUILTIN_FSQRT) | |
509 | AC_DEFINE(HAVE___BUILTIN_SQRTF) | |
510 | AC_DEFINE(HAVE___BUILTIN_SQRTL) | |
511 | fi | |
512 | ]) | |
513 | ||
514 | ||
2f103494 BK |
515 | dnl |
516 | dnl Check to see what the underlying c library or math library is like. | |
38bd7296 BK |
517 | dnl These checks need to do two things: |
518 | dnl 1) make sure the name is declared when using the c++ compiler | |
519 | dnl 2) make sure the name has "C" linkage | |
520 | dnl This might seem like overkill but experience has shown that it's not... | |
2f103494 BK |
521 | dnl |
522 | dnl Define HAVE_CARGF etc if "cargf" is found. | |
523 | dnl | |
524 | dnl GLIBCPP_CHECK_MATH_SUPPORT | |
525 | AC_DEFUN(GLIBCPP_CHECK_MATH_SUPPORT, [ | |
38bd7296 BK |
526 | ac_test_CXXFLAGS="${CXXFLAGS+set}" |
527 | ac_save_CXXFLAGS="$CXXFLAGS" | |
4f76382d | 528 | CXXFLAGS='-fno-builtins -D_GNU_SOURCE' |
aac350aa BK |
529 | |
530 | dnl Check libm | |
2f103494 | 531 | AC_CHECK_LIB(m, sin, libm="-lm") |
38bd7296 | 532 | ac_save_LIBS="$LIBS" |
2f103494 BK |
533 | LIBS="$LIBS $libm" |
534 | ||
38bd7296 BK |
535 | dnl Although not math functions, needed and for some reason checked here. |
536 | AC_CHECK_FUNCS(strtof strtold) | |
537 | ||
538 | dnl Check to see if certain C math functions exist. | |
539 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinf) | |
540 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnan) | |
541 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finite) | |
542 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysign) | |
543 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincos) | |
544 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fpclass) | |
545 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(qfpclass) | |
546 | ||
547 | dnl Check to see if basic C math functions have float versions. | |
548 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanf) | |
549 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinff) | |
550 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(acosf) | |
551 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(asinf) | |
552 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(atanf) | |
553 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2f) | |
554 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(ceilf) | |
555 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(cosf) | |
556 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(coshf) | |
557 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expf) | |
558 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsf) | |
559 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(floorf) | |
560 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodf) | |
561 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpf) | |
562 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpf) | |
563 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logf) | |
564 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10f) | |
565 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modff) | |
566 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powf) | |
567 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sinf) | |
568 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sinhf) | |
569 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtf) | |
570 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(tanf) | |
571 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(tanhf) | |
572 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosf) | |
573 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitef) | |
574 | ||
575 | dnl Check to see if basic C math functions have long double versions. | |
576 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanl) | |
577 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinfl) | |
11fc1858 | 578 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysignl) |
38bd7296 BK |
579 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(acosl) |
580 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(asinl) | |
581 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(atanl) | |
582 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2l) | |
583 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(ceill) | |
584 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(cosl) | |
585 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(coshl) | |
586 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expl) | |
587 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsl) | |
588 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(floorl) | |
589 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodl) | |
590 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpl) | |
591 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpl) | |
592 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logl) | |
593 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10l) | |
594 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modfl) | |
595 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powl) | |
11fc1858 | 596 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sinl) |
38bd7296 BK |
597 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sinhl) |
598 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtl) | |
599 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(tanl) | |
600 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(tanhl) | |
601 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosl) | |
602 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitel) | |
603 | ||
604 | dnl Some runtimes have these functions with a preceding underscore. Please | |
605 | dnl keep this sync'd with the one above. And if you add any new symbol, | |
606 | dnl please add the corresponding block in the @BOTTOM@ section of acconfig.h. | |
607 | dnl Check to see if certain C math functions exist. | |
38bd7296 BK |
608 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_isinf) |
609 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_isnan) | |
610 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_finite) | |
611 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_copysign) | |
612 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(_sincos) | |
613 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_fpclass) | |
614 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_qfpclass) | |
615 | ||
616 | dnl Check to see if basic C math functions have float versions. | |
617 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_isnanf) | |
618 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_isinff) | |
619 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_acosf) | |
620 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_asinf) | |
621 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_atanf) | |
622 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_atan2f) | |
623 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_ceilf) | |
624 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_cosf) | |
625 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_coshf) | |
626 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_expf) | |
627 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_fabsf) | |
628 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_floorf) | |
629 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_fmodf) | |
630 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_frexpf) | |
631 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_ldexpf) | |
632 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_logf) | |
633 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_log10f) | |
634 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_modff) | |
635 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_powf) | |
636 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_sinf) | |
637 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_sinhf) | |
638 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_sqrtf) | |
639 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_tanf) | |
640 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_tanhf) | |
641 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(_sincosf) | |
642 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_finitef) | |
643 | ||
644 | dnl Check to see if basic C math functions have long double versions. | |
645 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_isnanl) | |
646 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_isinfl) | |
11fc1858 | 647 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_copysignl) |
38bd7296 BK |
648 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_acosl) |
649 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_asinl) | |
650 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_atanl) | |
651 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_atan2l) | |
652 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_ceill) | |
653 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_cosl) | |
654 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_coshl) | |
655 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_expl) | |
656 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_fabsl) | |
657 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_floorl) | |
658 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_fmodl) | |
659 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_frexpl) | |
660 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_ldexpl) | |
661 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_logl) | |
662 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_log10l) | |
663 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_modfl) | |
664 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_powl) | |
11fc1858 | 665 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_sinl) |
38bd7296 BK |
666 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_sinhl) |
667 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_sqrtl) | |
668 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_tanl) | |
669 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_tanhl) | |
670 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(_sincosl) | |
671 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_finitel) | |
672 | ||
673 | LIBS="$ac_save_LIBS" | |
674 | CXXFLAGS="$ac_save_CXXFLAGS" | |
2f103494 BK |
675 | ]) |
676 | ||
677 | ||
678 | dnl | |
679 | dnl Check to see if there is native support for complex | |
680 | dnl | |
681 | dnl Don't compile bits in math/* if native support exits. | |
682 | dnl | |
683 | dnl Define USE_COMPLEX_LONG_DOUBLE etc if "cargf" is found. | |
684 | dnl | |
685 | dnl GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT | |
686 | AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT, [ | |
687 | dnl Check for complex versions of math functions of platform. | |
688 | AC_CHECK_HEADERS([complex.h]) | |
689 | AC_REPLACE_MATHFUNCS(ccos ccosf ccosh ccoshf cexp cexpf c_log c_logf \ | |
690 | clog10 clog10f cpow cpowf csin csinf csinh csinhf csqrt csqrtf \ | |
11fc1858 BK |
691 | ctan ctanf ctanh ctanhf carg cargf nan hypot hypotf atan2f expf copysignf) |
692 | ||
693 | dnl Compile the long double complex functions only if the function | |
694 | dnl provides the non-complex long double functions that are needed. | |
695 | dnl Currently this includes copysignl and atan2l, which should be | |
696 | dnl cached from the GLIBCPP_CHECK_MATH_SUPPORT macro, above. | |
697 | USE_COMPLEX_LONG_DOUBLE=no | |
698 | if test x$ac_cv_func_atan2l = x"yes" \ | |
699 | && test x$ac_cv_func_copysignl = x"yes"; then | |
700 | USE_COMPLEX_LONG_DOUBLE=yes | |
701 | AC_REPLACE_MATHFUNCS(ccoshl ccosl cexpl cpowl csinhl csinl \ | |
702 | csqrtl ctanhl ctanl cargl hypotl signbitl c_logl clog10l) | |
703 | fi | |
704 | ||
2f103494 BK |
705 | AC_SUBST(USE_COMPLEX_LONG_DOUBLE) |
706 | ]) | |
707 | ||
54fa7415 | 708 | |
e974e9cc BK |
709 | dnl Check to see what architecture we are compiling for. Also, if |
710 | dnl architecture-specific flags are required for compilation, add them here. | |
b2dad0e3 | 711 | dnl |
b2dad0e3 BK |
712 | dnl GLIBCPP_CHECK_CPU |
713 | AC_DEFUN(GLIBCPP_CHECK_CPU, [ | |
e974e9cc BK |
714 | AC_MSG_CHECKING([for cpu config directory]) |
715 | # Currently unused, but could be useful. | |
716 | # CPU_FLAGS= | |
5780a46b | 717 | case "${target_cpu}" in |
b2dad0e3 BK |
718 | alpha*) |
719 | cpu_include_dir="config/cpu/alpha" | |
720 | ;; | |
721 | arm*) | |
722 | cpu_include_dir="config/cpu/arm" | |
723 | ;; | |
735bce7e RH |
724 | ia64) |
725 | cpu_include_dir="config/cpu/ia64" | |
726 | ;; | |
bf93f43b | 727 | i386) |
b2dad0e3 | 728 | cpu_include_dir="config/cpu/i386" |
bf93f43b BK |
729 | ;; |
730 | i486 | i586 | i686 | i786) | |
731 | cpu_include_dir="config/cpu/i486" | |
b2dad0e3 BK |
732 | ;; |
733 | powerpc | rs6000) | |
734 | cpu_include_dir="config/cpu/powerpc" | |
735 | ;; | |
736 | sparc64 | ultrasparc) | |
737 | cpu_include_dir="config/cpu/sparc/sparc64" | |
738 | ;; | |
739 | sparc*) | |
740 | cpu_include_dir="config/cpu/sparc/sparc32" | |
741 | ;; | |
742 | *) | |
743 | cpu_include_dir="config/cpu/generic" | |
744 | ;; | |
745 | esac | |
746 | AC_MSG_RESULT($cpu_include_dir) | |
b2dad0e3 BK |
747 | ]) |
748 | ||
749 | ||
e974e9cc BK |
750 | dnl Check to see what OS we are compiling for. Also, if os-specific flags |
751 | dnl are required for compilation, add them here. | |
752 | dnl | |
753 | dnl GLIBCPP_CHECK_OS | |
754 | AC_DEFUN(GLIBCPP_CHECK_OS, [ | |
755 | AC_MSG_CHECKING([for os config directory]) | |
756 | # Currently unused, but could be useful. | |
757 | # OS_FLAGS= | |
758 | case "${target_os}" in | |
759 | aix*) | |
760 | os_include_dir="config/os/aix" | |
761 | ;; | |
762 | bsd* | freebsd*) | |
763 | os_include_dir="config/os/bsd" | |
764 | ;; | |
765 | linux*) | |
766 | os_include_dir="config/os/gnu-linux" | |
767 | ;; | |
768 | irix*) | |
769 | os_include_dir="config/os/irix" | |
770 | ;; | |
771 | solaris2.5*) | |
772 | os_include_dir="config/os/solaris/solaris2.5" | |
773 | ;; | |
774 | solaris2.6*) | |
775 | os_include_dir="config/os/solaris/solaris2.6" | |
776 | ;; | |
777 | solaris2.7* | solaris2.8*) | |
778 | os_include_dir="config/os/solaris/solaris2.7" | |
779 | ;; | |
780 | *) | |
781 | os_include_dir="config/os/generic" | |
782 | ;; | |
783 | esac | |
784 | AC_MSG_RESULT($os_include_dir) | |
1364053c | 785 | AC_LINK_FILES($os_include_dir/bits/os_defines.h, bits/os_defines.h) |
e974e9cc BK |
786 | ]) |
787 | ||
788 | ||
b2dad0e3 BK |
789 | dnl |
790 | dnl Check to see what the underlying c library's interface to ctype looks | |
791 | dnl like. Bits of locale rely on things like isspace, toupper, etc. This | |
792 | dnl stuff makes sure the right bits from the clibrary get called. | |
793 | dnl | |
794 | dnl Depending on what is found, select various configure/*/bits/ctype_base.h | |
795 | dnl Depending on what is found, select various configure/*/ctype.cc | |
796 | dnl | |
797 | dnl GLIBCPP_CHECK_CTYPE | |
798 | AC_DEFUN(GLIBCPP_CHECK_CTYPE, [ | |
799 | AC_CHECK_HEADER(ctype.h, [ | |
800 | ||
801 | dnl If doesn't match any specified, go with defaults. | |
802 | ctype_default=yes | |
803 | ||
9a200b0a PE |
804 | dnl Test for <ctype> functionality -- GNU/Linux |
805 | AC_MSG_CHECKING([<ctype> for GNU/Linux]) | |
b2dad0e3 BK |
806 | AC_TRY_COMPILE([#include <ctype.h>], |
807 | [int | |
808 | foo (int a) | |
809 | { return _ISspace + _ISprint + _IScntrl + _ISupper + _ISlower + _ISalpha \ | |
810 | + _ISdigit + _ISpunct + _ISxdigit + _ISalnum + _ISgraph \ | |
811 | + __ctype_tolower[a] + __ctype_toupper[a] + __ctype_b[a];}], \ | |
812 | ctype_linux=yes, ctype_linux=no) | |
813 | AC_MSG_RESULT($ctype_linux) | |
814 | if test $ctype_linux = "yes"; then | |
e974e9cc | 815 | ctype_include_dir="config/os/gnu-linux" |
b2dad0e3 BK |
816 | ctype_default=no |
817 | fi | |
818 | ||
6ad50467 | 819 | dnl Test for <ctype> functionality -- FreeBSD 4.0 |
65dd21b7 | 820 | if test $ctype_default = "yes"; then |
9a200b0a | 821 | AC_MSG_CHECKING([<ctype> for FreeBSD 4.0]) |
7b267e3e BK |
822 | AC_TRY_COMPILE([#include <ctype.h>], |
823 | [int | |
824 | foo (int a) | |
825 | { return _CTYPE_S + _CTYPE_R + _CTYPE_C + _CTYPE_U + _CTYPE_L + _CTYPE_A \ | |
826 | + _CTYPE_D + _CTYPE_P + _CTYPE_X + _CTYPE_G ;}], \ | |
827 | ctype_bsd=yes, ctype_bsd=no) | |
828 | AC_MSG_RESULT($ctype_bsd) | |
829 | if test $ctype_bsd = "yes"; then | |
e974e9cc | 830 | ctype_include_dir="config/os/bsd" |
6ad50467 BK |
831 | ctype_default=no |
832 | fi | |
65dd21b7 | 833 | fi |
6ad50467 BK |
834 | |
835 | dnl Test for <ctype> functionality -- FreeBSD 3.4 | |
65dd21b7 | 836 | if test $ctype_default = "yes"; then |
9a200b0a | 837 | AC_MSG_CHECKING([<ctype> for FreeBSD 3.4]) |
6ad50467 BK |
838 | AC_TRY_COMPILE([#include <ctype.h>], |
839 | [int | |
840 | foo (int a) | |
841 | { return _S + _R + _C + _U + _L + _A \ | |
842 | + _D + _P + _X + _G + __istype (a, 0);}], \ | |
843 | ctype_freebsd34=yes, ctype_freebsd34=no) | |
844 | AC_MSG_RESULT($ctype_freebsd34) | |
845 | if test $ctype_freebsd34 = "yes"; then | |
e974e9cc | 846 | ctype_include_dir="config/os/bsd" |
7b267e3e BK |
847 | ctype_default=no |
848 | fi | |
65dd21b7 | 849 | fi |
7b267e3e | 850 | |
9a200b0a | 851 | dnl Test for <ctype> functionality -- Solaris 2.6 and up |
b2dad0e3 | 852 | if test $ctype_default = "yes"; then |
9a200b0a | 853 | AC_MSG_CHECKING([<ctype> for Solaris 2.6,7,8]) |
b2dad0e3 BK |
854 | AC_TRY_COMPILE([#include <ctype.h>], |
855 | [int | |
856 | foo (int a) | |
857 | { return _ISSPACE + _ISPRINT + _ISCNTRL + _ISUPPER + _ISLOWER + _ISALPHA \ | |
858 | + _ISDIGIT + _ISPUNCT + _ISXDIGIT + _ISALNUM + _ISGRAPH \ | |
859 | + __trans_lower[a] + __trans_upper[a] + __ctype_mask[a];}], \ | |
860 | ctype_solaris=yes, ctype_solaris=no) | |
861 | AC_MSG_RESULT($ctype_solaris) | |
862 | ||
863 | if test $ctype_solaris = "yes"; then | |
864 | AC_MSG_CHECKING([ for version]) | |
865 | AC_LANG_CPLUSPLUS | |
866 | AC_TRY_COMPILE([#include <ctype.h>], | |
867 | [typedef long* __to_type; __to_type const& _M_toupper = __trans_upper;],\ | |
868 | ctype_solaris26=yes, ctype_solaris26=no) | |
869 | AC_LANG_C | |
870 | if test $ctype_solaris26 = "yes"; then | |
e974e9cc | 871 | ctype_include_dir="config/os/solaris/solaris2.6" |
9a200b0a | 872 | AC_MSG_RESULT([Solaris 2.6]) |
b2dad0e3 BK |
873 | ctype_default=no |
874 | else | |
e974e9cc | 875 | ctype_include_dir="config/os/solaris/solaris2.7" |
9a200b0a | 876 | AC_MSG_RESULT([Solaris 7,8]) |
b2dad0e3 BK |
877 | ctype_default=no |
878 | fi | |
879 | fi | |
880 | fi | |
881 | ||
9a200b0a | 882 | dnl Test for <ctype> functionality -- Solaris 2.5.1 |
b2dad0e3 | 883 | if test $ctype_default = "yes"; then |
9a200b0a | 884 | AC_MSG_CHECKING([<ctype> for Solaris 2.5.1]) |
b2dad0e3 BK |
885 | AC_TRY_COMPILE([#include <ctype.h>], |
886 | [int | |
887 | foo (int a) | |
888 | { return _U + _L + _N + _S + _P + _C + _X + _B \ | |
889 | + __ctype[a];}], \ | |
890 | ctype_solaris25=yes, ctype_solaris25=no) | |
891 | AC_MSG_RESULT($ctype_solaris25) | |
892 | if test $ctype_solaris25 = "yes"; then | |
e974e9cc | 893 | ctype_include_dir="config/os/solaris/solaris2.5" |
b2dad0e3 BK |
894 | ctype_default=no |
895 | fi | |
896 | fi | |
897 | ||
9a200b0a | 898 | dnl Test for <ctype> functionality -- AIX |
b2dad0e3 | 899 | if test $ctype_default = "yes"; then |
9a200b0a | 900 | AC_MSG_CHECKING([<ctype> for AIX]) |
b2dad0e3 BK |
901 | AC_TRY_COMPILE([#include <ctype.h>], |
902 | [int | |
903 | foo (int a) | |
904 | { return _ISSPACE + _ISPRINT + _ISCNTRL + _ISUPPER + _ISLOWER + _ISALPHA \ | |
905 | + _ISDIGIT + _ISPUNCT + _ISXDIGIT + _ISALNUM + _ISGRAPH \ | |
906 | + _VALC('a') + _IS('c', 0);}], \ | |
907 | ctype_aix=yes, ctype_aix=no) | |
908 | AC_MSG_RESULT($ctype_aix) | |
909 | if test $ctype_aix = "yes"; then | |
e974e9cc | 910 | ctype_include_dir="config/os/aix" |
b2dad0e3 BK |
911 | ctype_default=no |
912 | fi | |
913 | fi | |
914 | ||
915 | dnl Test for <ctype> functionality -- newlib | |
916 | if test $ctype_default = "yes"; then | |
9a200b0a | 917 | AC_MSG_CHECKING([<ctype> for newlib]) |
b2dad0e3 BK |
918 | AC_TRY_COMPILE([#include <ctype.h>], |
919 | [int | |
920 | foo (int a) | |
921 | { return _U + _L + _N + _S + _P + _C + _X + _B \ | |
922 | + _ctype_[a];}], \ | |
923 | ctype_newlib=yes, ctype_newlib=no) | |
924 | AC_MSG_RESULT($ctype_newlib) | |
925 | if test $ctype_newlib = "yes"; then | |
926 | ctype_include_dir="config/newlib" | |
927 | ctype_default=no | |
928 | fi | |
929 | fi | |
930 | ||
931 | if test $ctype_default = "yes"; then | |
e974e9cc | 932 | ctype_include_dir="config/os/generic" |
b2dad0e3 BK |
933 | AC_MSG_WARN("Using default ctype headers.") |
934 | fi | |
e974e9cc BK |
935 | |
936 | AC_LINK_FILES($ctype_include_dir/bits/ctype_base.h, bits/ctype_base.h) | |
937 | AC_LINK_FILES($ctype_include_dir/bits/ctype_inline.h, bits/ctype_inline.h) | |
938 | AC_LINK_FILES($ctype_include_dir/bits/ctype_noninline.h, \ | |
939 | bits/ctype_noninline.h) | |
b2dad0e3 BK |
940 | ]) |
941 | ]) | |
942 | ||
943 | ||
b2dad0e3 BK |
944 | dnl |
945 | dnl Check to see if this target can enable the wchar_t parts of libstdc++. | |
946 | dnl | |
947 | dnl Define _GLIBCPP_USE_WCHAR_T if all the bits are found | |
948 | dnl Define _GLIBCPP_NEED_MBSTATE_T if mbstate_t is not in wchar.h | |
b2dad0e3 BK |
949 | dnl |
950 | dnl GLIBCPP_CHECK_WCHAR_T_SUPPORT | |
951 | AC_DEFUN(GLIBCPP_CHECK_WCHAR_T_SUPPORT, [ | |
3840fa2a BK |
952 | |
953 | dnl Sanity check for existence of ISO C9X headers for extended encoding. | |
954 | AC_CHECK_HEADER(wchar.h, ac_has_wchar_h=yes, ac_has_wchar_h=no) | |
955 | AC_CHECK_HEADER(wctype.h, ac_has_wctype_h=yes, ac_has_wctype_h=no) | |
956 | ||
957 | dnl Only continue checking if the ISO C9X headers exist. | |
958 | if test x"$ac_has_wchar_h" = xyes && test x"$ac_has_wctype_h" = xyes; then | |
959 | ||
960 | dnl Test wchar.h for mbstate_t, which is needed for char_traits and others. | |
961 | AC_MSG_CHECKING([for mbstate_t]) | |
962 | AC_TRY_COMPILE([#include <wchar.h>], | |
963 | [mbstate_t teststate;], | |
964 | use_native_mbstatet=yes, use_native_mbstatet=no) | |
965 | AC_MSG_RESULT($use_native_mbstatet) | |
966 | if test x"$use_native_mbstatet" = xno; then | |
967 | AC_DEFINE(_GLIBCPP_NEED_MBSTATE_T) | |
968 | fi | |
b2dad0e3 | 969 | |
3840fa2a BK |
970 | dnl Test wchar.h for WCHAR_MIN, WCHAR_MAX, which is needed before |
971 | dnl numeric_limits can instantiate type_traits<wchar_t> | |
972 | AC_MSG_CHECKING([for WCHAR_MIN and WCHAR_MAX]) | |
973 | AC_TRY_COMPILE([#include <wchar.h>], | |
974 | [int i = WCHAR_MIN; int j = WCHAR_MAX;], | |
975 | has_wchar_minmax=yes, has_wchar_minmax=no) | |
976 | AC_MSG_RESULT($has_wchar_minmax) | |
b2dad0e3 | 977 | |
3840fa2a BK |
978 | dnl Test wchar.h for WEOF, which is what we use to determine whether |
979 | dnl to specialize for char_traits<wchar_t> or not. | |
980 | AC_MSG_CHECKING([for WEOF]) | |
981 | AC_TRY_COMPILE([ | |
982 | #include <wchar.h> | |
983 | #include <stddef.h>], | |
984 | [wint_t i = WEOF;], | |
985 | has_weof=yes, has_weof=no) | |
986 | AC_MSG_RESULT($has_weof) | |
987 | ||
988 | dnl Tests for wide character functions used in char_traits<wchar_t>. | |
ae658d47 BK |
989 | AC_CHECK_FUNCS(wcslen wmemchr wmemcmp wmemcpy wmemmove wmemset \ |
990 | wcsrtombs mbsrtowcs, ac_wfuncs=yes, ac_wfuncs=no) | |
3840fa2a BK |
991 | |
992 | AC_MSG_CHECKING([for ISO C9X wchar_t support]) | |
ae658d47 BK |
993 | if test x"$has_weof" = xyes && test x"$has_wchar_minmax" = xyes \ |
994 | && test x"$ac_wfuncs" = xyes; then | |
3840fa2a BK |
995 | ac_isoC9X_wchar_t=yes |
996 | else | |
997 | ac_isoC9X_wchar_t=no | |
998 | fi | |
999 | AC_MSG_RESULT($ac_isoC9X_wchar_t) | |
1000 | ||
1001 | dnl Use iconv for wchar_t to char conversions. As such, check for | |
1002 | dnl X/Open Portability Guide, version 2 features (XPG2). | |
1003 | AC_CHECK_HEADER(iconv.h, ac_has_iconv_h=yes, ac_has_iconv_h=no) | |
ae658d47 BK |
1004 | AC_CHECK_HEADER(langinfo.h, ac_has_langinfo_h=yes, ac_has_langinfo_h=no) |
1005 | AC_CHECK_FUNCS(iconv_open iconv_close iconv nl_langinfo, \ | |
1006 | ac_XPG2funcs=yes, ac_XPG2funcs=no) | |
3840fa2a BK |
1007 | |
1008 | AC_MSG_CHECKING([for XPG2 wchar_t support]) | |
ae658d47 BK |
1009 | if test x"$ac_has_iconv_h" = xyes && test x"$ac_has_langinfo_h" = xyes \ |
1010 | && test x"$ac_XPG2funcs" = xyes; then | |
3840fa2a BK |
1011 | ac_XPG2_wchar_t=yes |
1012 | else | |
1013 | ac_XPG2_wchar_t=no | |
1014 | fi | |
1015 | AC_MSG_RESULT($ac_XPG2_wchar_t) | |
1016 | ||
1017 | dnl At the moment, only enable wchar_t specializations if all the | |
1018 | dnl above support is present. | |
1019 | AC_MSG_CHECKING([for enabled wchar_t specializations]) | |
ae658d47 BK |
1020 | if test x"$ac_isoC9X_wchar_t" = xyes \ |
1021 | && test x"$ac_XPG2_wchar_t" = xyes; then | |
3840fa2a BK |
1022 | libinst_wstring_la="libinst-wstring.la" |
1023 | AC_DEFINE(_GLIBCPP_USE_WCHAR_T) | |
1024 | AC_MSG_RESULT("yes") | |
1025 | else | |
1026 | libinst_wstring_la="" | |
1027 | AC_MSG_RESULT("no") | |
1028 | fi | |
1029 | AC_SUBST(libinst_wstring_la) | |
1030 | ||
b2dad0e3 | 1031 | else |
3840fa2a BK |
1032 | AC_MSG_WARN([<wchar.h> not found]) |
1033 | AC_DEFINE(_GLIBCPP_NEED_MBSTATE_T) | |
b2dad0e3 | 1034 | fi |
b2dad0e3 BK |
1035 | ]) |
1036 | ||
1037 | ||
1038 | dnl | |
1039 | dnl Check to see if this version of GNU C++ is afflicted by bugs in | |
1040 | dnl __complex__ float support. | |
1041 | dnl | |
1042 | dnl Define _GLIBCPP_BUGGY_FLOAT_COMPLEX if buggy. | |
1043 | dnl | |
2f103494 BK |
1044 | dnl Check to see if this version of GNU C++ is afflicted by bugs in |
1045 | dnl __complex__ support.Check for buggy __complex__ that will cause ICE in | |
1046 | dnl gcc-2.95.x when using the library, unless we define the default copy | |
1047 | dnl ctor in the specializations of complex<>. | |
1048 | dnl | |
1049 | dnl Define _GLIBCPP_BUGGY_COMPLEX if buggy. | |
1050 | dnl GLIBCPP_CHECK_COMPLEX_MATH_COMPILER_SUPPORT | |
1051 | AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_COMPILER_SUPPORT, [ | |
b2dad0e3 | 1052 | AC_REQUIRE([AC_PROG_CXX]) |
2f103494 BK |
1053 | |
1054 | AC_MSG_CHECKING([for GNU C++ __complex__ support]) | |
1055 | AC_CACHE_VAL(glibcpp_cv_complex, [ | |
1056 | AC_LANG_SAVE | |
1057 | AC_LANG_CPLUSPLUS | |
1058 | AC_TRY_COMPILE([struct dcomplex { __complex__ double x; }; \ | |
1059 | dcomplex f(const dcomplex& x) { return dcomplex(x); }], \ | |
1060 | [ dcomplex x; f(x); ], | |
1061 | glibcpp_cv_complex=ok, | |
1062 | glibcpp_cv_complex=buggy | |
1063 | ) | |
1064 | AC_LANG_RESTORE | |
1065 | ]) | |
1066 | AC_MSG_RESULT($glibcpp_cv_complex) | |
1067 | if test $glibcpp_cv_complex = buggy; then | |
1068 | AC_DEFINE(_GLIBCPP_BUGGY_COMPLEX) | |
1069 | fi | |
1070 | ||
b2dad0e3 BK |
1071 | AC_MSG_CHECKING([for GNU C++ __complex__ float support]) |
1072 | AC_CACHE_VAL(glibcpp_cv_float_complex, [ | |
1073 | AC_LANG_SAVE | |
1074 | AC_LANG_CPLUSPLUS | |
1075 | rm -f conftest.h | |
1076 | cat > conftest.h <<EOB | |
1077 | // | |
1078 | // Check for buggy __complex__ that causes ICE in most versions of egcs | |
1079 | // and gcc-2.95.x on certain platforms (eg., x86-win32). | |
1080 | // | |
1081 | // See http://egcs.cygnus.com/ml/gcc-bugs/1999-07/msg00845.html for | |
1082 | // more info on the bug itself. | |
1083 | // | |
1084 | struct | |
1085 | float_complex | |
1086 | { | |
1087 | __complex__ float m_value; | |
1088 | float_complex (float = 0.0f, float = 0.0f); | |
1089 | float_complex (__complex__ float val) : m_value (val) {} | |
1090 | float_complex foo (const float_complex &val) | |
1091 | { return float_complex (~val.m_value); } | |
1092 | }; | |
1093 | EOB | |
1094 | AC_TRY_COMPILE([#include "conftest.h"], , | |
1095 | glibcpp_cv_float_complex=ok, | |
1096 | glibcpp_cv_float_complex=buggy | |
1097 | ) | |
1098 | AC_LANG_RESTORE | |
1099 | ]) | |
1100 | AC_MSG_RESULT($glibcpp_cv_float_complex) | |
1101 | if test $glibcpp_cv_float_complex = buggy; then | |
1102 | AC_DEFINE(_GLIBCPP_BUGGY_FLOAT_COMPLEX) | |
1103 | fi | |
1104 | ]) | |
1105 | ||
1106 | ||
b2dad0e3 | 1107 | dnl |
8bd636c5 | 1108 | dnl Check for special debugging mode; not for production use. |
b2dad0e3 BK |
1109 | dnl |
1110 | dnl GLIBCPP_ENABLE_DEBUG | |
1111 | dnl --enable-debug sets '-ggdb -O0'. | |
1112 | dnl --disable-debug sets '-g' and whatever optimization options the | |
1113 | dnl compiler can handle. | |
7f586614 | 1114 | dnl + --enable-maintainer-mode automatically defaults this to on. |
b2dad0e3 BK |
1115 | dnl + Perhaps -D/-U of NDEBUG, DEBUG, DEBUG_ASSERT, ...? |
1116 | dnl + Usage: GLIBCPP_ENABLE_DEBUG[(DEFAULT)] | |
1117 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
1118 | dnl defaults to `no'. | |
1119 | AC_DEFUN(GLIBCPP_ENABLE_DEBUG, [dnl | |
1120 | define([GLIBCPP_ENABLE_DEBUG_DEFAULT], ifelse($1, yes, yes, no))dnl | |
1121 | AC_ARG_ENABLE(debug, | |
1122 | changequote(<<, >>)dnl | |
1123 | << --enable-debug extra debugging, turn off optimization [default=>>GLIBCPP_ENABLE_DEBUG_DEFAULT], | |
1124 | changequote([, ])dnl | |
5780a46b | 1125 | [case "${enableval}" in |
b2dad0e3 BK |
1126 | yes) enable_debug=yes ;; |
1127 | no) enable_debug=no ;; | |
1128 | *) AC_MSG_ERROR([Unknown argument to enable/disable extra debugging]) ;; | |
1129 | esac], | |
1130 | enable_debug=GLIBCPP_ENABLE_DEBUG_DEFAULT)dnl | |
5780a46b | 1131 | |
b2dad0e3 | 1132 | dnl Option parsed, now set things appropriately |
5780a46b | 1133 | case "${enable_debug}" in |
cde28f0d | 1134 | yes) |
c470c17d | 1135 | DEBUG_FLAGS='-O0 -ggdb' |
cde28f0d | 1136 | ;; |
f3b004d8 | 1137 | no) |
c470c17d | 1138 | DEBUG_FLAGS='-g' |
f3b004d8 | 1139 | ;; |
b2dad0e3 | 1140 | esac |
c470c17d | 1141 | AC_SUBST(DEBUG_FLAGS) |
b2dad0e3 BK |
1142 | ]) |
1143 | ||
1144 | ||
dcfa0bc8 PE |
1145 | dnl |
1146 | dnl Check for "unusual" flags to pass to the compiler while building. | |
1147 | dnl | |
1148 | dnl GLIBCPP_ENABLE_CXX_FLAGS | |
1149 | dnl --enable-cxx-flags='-foo -bar -baz' is a general method for passing | |
1150 | dnl experimental flags such as -fhonor-std, -fsquangle, -Dfloat=char, etc. | |
1151 | dnl Somehow this same set of flags must be passed when [re]building | |
1152 | dnl libgcc. | |
1153 | dnl --disable-cxx-flags passes nothing. | |
32a4595e PE |
1154 | dnl + See http://sourceware.cygnus.com/ml/libstdc++/2000-q2/msg00131.html |
1155 | dnl http://sourceware.cygnus.com/ml/libstdc++/2000-q2/msg00284.html | |
1156 | dnl http://sourceware.cygnus.com/ml/libstdc++/2000-q1/msg00035.html | |
dcfa0bc8 | 1157 | dnl + Usage: GLIBCPP_ENABLE_CXX_FLAGS(default flags) |
32a4595e PE |
1158 | dnl If "default flags" is an empty string (or "none"), the effect is |
1159 | dnl the same as --disable or --enable=no. | |
dcfa0bc8 PE |
1160 | AC_DEFUN(GLIBCPP_ENABLE_CXX_FLAGS, [dnl |
1161 | define([GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], ifelse($1,,, $1))dnl | |
1162 | AC_ARG_ENABLE(cxx-flags, | |
1163 | changequote(<<, >>)dnl | |
1164 | << --enable-cxx-flags=FLAGS pass compiler FLAGS when building library; | |
1165 | [default=>>GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], | |
1166 | changequote([, ])dnl | |
1167 | [case "x$enableval" in | |
5780a46b BK |
1168 | xyes) |
1169 | AC_MSG_ERROR([--enable-cxx-flags needs compiler flags as arguments]) ;; | |
1170 | xno|x) | |
1171 | enable_cxx_flags='' ;; | |
1172 | *) | |
1173 | enable_cxx_flags="$enableval" ;; | |
dcfa0bc8 | 1174 | esac], |
5780a46b BK |
1175 | enable_cxx_flags='GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT') |
1176 | ||
32a4595e | 1177 | dnl Thinko on my part during design. This kludge is the workaround. |
5780a46b BK |
1178 | if test "$enable_cxx_flags" = "none"; then |
1179 | enable_cxx_flags=''; | |
1180 | fi | |
1181 | ||
32a4595e PE |
1182 | dnl Run through flags (either default or command-line) and set anything |
1183 | dnl extra (e.g., #defines) that must accompany particular g++ options. | |
dcfa0bc8 PE |
1184 | if test -n "$enable_cxx_flags"; then |
1185 | for f in $enable_cxx_flags; do | |
1186 | case "$f" in | |
991a40fc | 1187 | -fhonor-std) ;; |
dcfa0bc8 PE |
1188 | -*) ;; |
1189 | *) # and we're trying to pass /what/ exactly? | |
1190 | AC_MSG_ERROR([compiler flags start with a -]) ;; | |
1191 | esac | |
1192 | done | |
1193 | fi | |
1194 | EXTRA_CXX_FLAGS="$enable_cxx_flags" | |
1195 | AC_SUBST(EXTRA_CXX_FLAGS) | |
1196 | ]) | |
1197 | ||
1198 | ||
b2dad0e3 | 1199 | dnl |
8bd636c5 | 1200 | dnl Check for which I/O library to use: libio, or something specific. |
b2dad0e3 BK |
1201 | dnl |
1202 | dnl GLIBCPP_ENABLE_CSTDIO | |
1203 | dnl --enable-cstdio=libio sets config/c_io_libio.h and friends | |
1204 | dnl | |
1205 | dnl default is libio | |
1206 | dnl | |
1207 | AC_DEFUN(GLIBCPP_ENABLE_CSTDIO, [ | |
1208 | AC_MSG_CHECKING([for cstdio to use]) | |
1209 | AC_ARG_ENABLE(cstdio, | |
1fd2f510 BK |
1210 | [ --enable-cstdio enable GNU libio for target io package. (default) |
1211 | --enable-cstdio=LIB use LIB target-speific io package.], | |
b2dad0e3 BK |
1212 | if test x$enable_cstdio = xno; then |
1213 | enable_cstdio=libio | |
1214 | fi, | |
1215 | enable_cstdio=libio) | |
1216 | ||
1217 | enable_cstdio_flag=$enable_cstdio | |
1218 | ||
1219 | dnl Check if a valid thread package | |
1220 | case x${enable_cstdio_flag} in | |
dd75251f BK |
1221 | xlibio | x | xno | xnone | xyes) |
1222 | # default | |
1223 | CSTDIO_H=config/c_io_libio.h | |
1224 | CSTDIO_CC=config/c_io_libio.cc | |
1225 | AC_MSG_RESULT(libio) | |
1226 | ||
1227 | # see if we are on a system with libio native (ie, linux) | |
1228 | AC_CHECK_HEADER(libio.h, has_libio=yes, has_libio=no) | |
1229 | ||
1230 | # Need to check and see what version of glibc is being used. If | |
1231 | # it's not glibc-2.2 or higher, then we'll need to go ahead and | |
1232 | # compile most of libio for linux systems. | |
1233 | if test x$has_libio = x"yes"; then | |
1234 | case "$target" in | |
1235 | *-*-linux*) | |
1236 | AC_MSG_CHECKING([for glibc version >= 2.2]) | |
1237 | AC_EGREP_CPP([ok], [ | |
47f634cb | 1238 | #include <features.h> |
dd75251f BK |
1239 | #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2) |
1240 | ok | |
1241 | #endif | |
1242 | ], glibc_satisfactory=yes, glibc_satisfactory=no) | |
1243 | AC_MSG_RESULT($glibc_satisfactory) | |
1244 | ;; | |
1245 | esac | |
1246 | ||
f133a43e BK |
1247 | # XXX at the moment, admit defeat and force the recompilation |
1248 | # XXX of glibc even on glibc-2.2 systems, because libio is not synched. | |
1249 | glibc_satisfactory=no | |
1250 | ||
dd75251f | 1251 | if test x$glibc_satisfactory = x"yes"; then |
dd75251f BK |
1252 | need_libio=no |
1253 | need_xtra_libio=no | |
1254 | need_wlibio=no | |
1255 | else | |
dd75251f BK |
1256 | need_libio=yes |
1257 | need_xtra_libio=yes | |
1258 | # bkoz XXX need to add checks to enable this | |
1259 | need_wlibio=yes | |
1260 | fi | |
1261 | ||
1262 | # Using libio, but <libio.h> doesn't exist on the target system. . . | |
1263 | else | |
dd75251f BK |
1264 | need_libio=yes |
1265 | need_xtra_libio=no | |
1266 | # bkoz XXX need to add checks to enable this | |
1267 | need_wlibio=no | |
1268 | fi | |
1269 | ;; | |
1270 | ||
1271 | xwince) | |
1272 | CSTDIO_H=config/c_io_wince.h | |
1273 | CSTDIO_CC=config/c_io_wince.cc | |
1274 | AC_MSG_RESULT(wince) | |
1275 | ||
1276 | need_libio=no | |
dd75251f BK |
1277 | ;; |
1278 | *) | |
1279 | echo "$enable_cstdio is an unknown io package" 1>&2 | |
1280 | exit 1 | |
1281 | ;; | |
b2dad0e3 | 1282 | esac |
c4561450 BK |
1283 | AC_LINK_FILES($CSTDIO_H, bits/c++io.h) |
1284 | AC_LINK_FILES($CSTDIO_CC, src/c++io.cc) | |
8901ac21 BK |
1285 | |
1286 | # 2000-08-04 bkoz hack | |
1287 | CCODECVT_C=config/c_io_libio_codecvt.c | |
1288 | AC_LINK_FILES($CCODECVT_C, libio/c_codecvt.c) | |
1289 | # 2000-08-04 bkoz hack | |
1290 | ||
b2dad0e3 | 1291 | AM_CONDITIONAL(GLIBCPP_NEED_LIBIO, test "$need_libio" = yes) |
dd75251f | 1292 | AM_CONDITIONAL(GLIBCPP_NEED_XTRA_LIBIO, test "$need_xtra_libio" = yes) |
20427c6b | 1293 | AM_CONDITIONAL(GLIBCPP_NEED_WLIBIO, test "$need_wlibio" = yes) |
b2dad0e3 BK |
1294 | ]) |
1295 | ||
1296 | ||
1297 | dnl | |
8bd636c5 | 1298 | dnl Check for which threading library to use. |
b2dad0e3 BK |
1299 | dnl |
1300 | dnl GLIBCPP_ENABLE_THREADS | |
1301 | dnl --enable-threads=posix sets config/threads-posix.h et. al. | |
1302 | dnl | |
1303 | dnl default is no threads | |
1304 | dnl | |
1305 | AC_DEFUN(GLIBCPP_ENABLE_THREADS, [ | |
1306 | dnl Note this comes from the gcc/config.in and libjava/config.in | |
1307 | dnl Efforts should be made to keep this in sync. | |
1308 | AC_MSG_CHECKING([for threads package to use]) | |
1309 | AC_ARG_ENABLE(threads, | |
1310 | [ --enable-threads enable thread usage for target GCC. | |
1fd2f510 | 1311 | --enable-threads=LIB use LIB thread package for target GCC.], |
b2dad0e3 BK |
1312 | if test x$enable_threads = xno; then |
1313 | enable_threads='' | |
1314 | fi, | |
1315 | enable_threads='') | |
1316 | ||
1317 | enable_threads_flag=$enable_threads | |
1318 | ||
1319 | dnl Check if a valid thread package | |
1320 | case x${enable_threads_flag} in | |
1321 | x | xno | xnone) | |
1322 | # No threads | |
1323 | target_thread_file='single' | |
1324 | ;; | |
1325 | xyes) | |
1326 | # default | |
1327 | target_thread_file='' | |
1328 | ;; | |
1329 | xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \ | |
1330 | xsolaris | xwin32 | xdce | xvxworks) | |
1331 | target_thread_file=$enable_threads_flag | |
1332 | ;; | |
1333 | *) | |
1334 | echo "$enable_threads is an unknown thread package" 1>&2 | |
1335 | exit 1 | |
1336 | ;; | |
1337 | esac | |
1338 | ||
1339 | dnl Check for thread package actually supported in libstdc++ | |
e974e9cc | 1340 | THREADH= |
b2dad0e3 BK |
1341 | case "$target_thread_file" in |
1342 | no | none | single) | |
e974e9cc | 1343 | THREADH=threads-no.h |
b2dad0e3 BK |
1344 | ;; |
1345 | posix | pthreads) | |
e974e9cc | 1346 | THREADH=threads-posix.h |
b2dad0e3 BK |
1347 | ;; |
1348 | decosf1 | irix | mach | os2 | solaris | win32 | dce | vxworks) | |
1349 | AC_MSG_ERROR(thread package $THREADS not yet supported) | |
1350 | ;; | |
1351 | *) | |
1352 | AC_MSG_ERROR($THREADS is an unknown thread package) | |
1353 | ;; | |
1354 | esac | |
e974e9cc | 1355 | AC_MSG_RESULT($THREADH) |
b2dad0e3 | 1356 | |
c4561450 | 1357 | AC_LINK_FILES(config/$THREADH, bits/c++threads.h) |
b2dad0e3 BK |
1358 | ]) |
1359 | ||
1360 | ||
e974e9cc BK |
1361 | dnl Enable atomic locking |
1362 | dnl GLIBCPP_ENABLE_ATOMICITY | |
1363 | AC_DEFUN(GLIBCPP_ENABLE_ATOMICITY, [ | |
1364 | AC_MSG_CHECKING([for atomicity.h]) | |
1365 | case "$target" in | |
1366 | *-*-linux*) | |
1367 | ATOMICITYH=$cpu_include_dir | |
1368 | ;; | |
1369 | *-*-aix*) | |
1370 | ATOMICITYH=$os_include_dir | |
1371 | ;; | |
1372 | *) | |
1373 | echo "$enable_threads is an unknown thread package" 1>&2 | |
1374 | exit 1 | |
1375 | ;; | |
1376 | esac | |
1377 | AC_MSG_RESULT($ATOMICITYH/bits/atomicity.h) | |
1378 | AC_LINK_FILES($ATOMICITYH/bits/atomicity.h, bits/atomicity.h) | |
1379 | ]) | |
1380 | ||
1381 | ||
b2dad0e3 | 1382 | dnl |
8bd636c5 | 1383 | dnl Check for template specializations for the 'long long' type extension. |
b2dad0e3 BK |
1384 | dnl |
1385 | dnl GLIBCPP_ENABLE_LONG_LONG | |
1386 | dnl --enable-long-long defines _GLIBCPP_USE_LONG_LONG | |
1387 | dnl --disable-long-long leaves _GLIBCPP_USE_LONG_LONG undefined | |
1388 | dnl + Usage: GLIBCPP_ENABLE_LONG_LONG[(DEFAULT)] | |
1389 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
1390 | dnl defaults to `no'. | |
0137be2d | 1391 | dnl + If 'long long' stuff is not available, ignores DEFAULT and sets `no'. |
b2dad0e3 BK |
1392 | dnl |
1393 | dnl GLIBCPP_ENABLE_LONG_LONG | |
1394 | AC_DEFUN(GLIBCPP_ENABLE_LONG_LONG, [dnl | |
1395 | define([GLIBCPP_ENABLE_LONG_LONG_DEFAULT], ifelse($1, yes, yes, no))dnl | |
209fe19b | 1396 | |
b2dad0e3 BK |
1397 | AC_ARG_ENABLE(long-long, |
1398 | changequote(<<, >>)dnl | |
d0d88ce3 | 1399 | <<--enable-long-long turns on 'long long' [default=>>GLIBCPP_ENABLE_LONG_LONG_DEFAULT], |
b2dad0e3 BK |
1400 | changequote([, ])dnl |
1401 | [case "$enableval" in | |
1402 | yes) enable_long_long=yes ;; | |
1403 | no) enable_long_long=no ;; | |
1404 | *) AC_MSG_ERROR([Unknown argument to enable/disable long long]) ;; | |
1405 | esac], | |
1406 | enable_long_long=GLIBCPP_ENABLE_LONG_LONG_DEFAULT)dnl | |
209fe19b BK |
1407 | |
1408 | # Check for the existance of functions used if long long is enabled. | |
1409 | AC_CHECK_FUNC(strtoll,,ac_strtoll=no) | |
1410 | AC_CHECK_FUNC(strtoull,,ac_strtoull=no) | |
1411 | ||
3840fa2a | 1412 | AC_MSG_CHECKING([for enabled long long]) |
209fe19b | 1413 | if test x"$ac_strtoll" = xno || test x"$ac_strtoull" = xno; then |
3840fa2a BK |
1414 | enable_long_long=no; |
1415 | fi; | |
d0d88ce3 | 1416 | AC_MSG_RESULT($enable_long_long) |
3840fa2a | 1417 | |
b2dad0e3 BK |
1418 | dnl Option parsed, now set things appropriately |
1419 | case "$enable_long_long" in | |
1420 | yes) AC_DEFINE(_GLIBCPP_USE_LONG_LONG) | |
1421 | ;; | |
1422 | esac | |
1423 | ]) | |
1424 | ||
1425 | ||
9fedcfd5 BK |
1426 | dnl |
1427 | dnl Check for template specializations for the 'long double' type extension. | |
1428 | dnl | |
1429 | dnl GLIBCPP_ENABLE_LONG_DOUBLE | |
1430 | dnl --enable-long-long defines _GLIBCPP_USE_LONG_DOUBLE | |
1431 | dnl --disable-long-long leaves _GLIBCPP_USE_LONG_DOUBLE undefined | |
1432 | dnl + Usage: GLIBCPP_ENABLE_LONG_DOUBLE[(DEFAULT)] | |
1433 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
1434 | dnl defaults to `no'. | |
1435 | dnl + If 'long long' stuff is not available, ignores DEFAULT and sets `no'. | |
1436 | dnl | |
1437 | dnl GLIBCPP_ENABLE_LONG_DOUBLE | |
1438 | AC_DEFUN(GLIBCPP_ENABLE_LONG_DOUBLE, [dnl | |
1439 | define([GLIBCPP_ENABLE_LONG_DOUBLE_DEFAULT], ifelse($1, yes, yes, no))dnl | |
1440 | ||
1441 | AC_ARG_ENABLE(long-double, | |
1442 | changequote(<<, >>)dnl | |
1443 | <<--enable-long-double turns on 'long double' [default=>>GLIBCPP_ENABLE_LONG_LONG_DEFAULT], | |
1444 | changequote([, ])dnl | |
1445 | [case "$enableval" in | |
1446 | yes) enable_long_double=yes ;; | |
1447 | no) enable_long_double=no ;; | |
1448 | *) AC_MSG_ERROR([Unknown argument to enable/disable long double]) ;; | |
1449 | esac], | |
1450 | enable_long_double=GLIBCPP_ENABLE_LONG_DOUBLE_DEFAULT)dnl | |
1451 | ||
1452 | # Check for the existance of functions used if long double is enabled. | |
1453 | AC_CHECK_FUNC(cosl,,ac_cosl=no) | |
1454 | AC_CHECK_FUNC(sinl,,ac_sinl=no) | |
1455 | ||
1456 | AC_MSG_CHECKING([for enabled long double]) | |
1457 | if test x"$ac_cosl" = xno || test x"$ac_sinl" = xno; then | |
1458 | enable_long_double=no; | |
1459 | fi; | |
1460 | AC_MSG_RESULT($enable_long_double) | |
1461 | ||
1462 | dnl Option parsed, now set things appropriately | |
1463 | case "$enable_long_double" in | |
1464 | yes) AC_DEFINE(_GLIBCPP_USE_LONG_DOUBLE) | |
1465 | ;; | |
1466 | esac | |
1467 | ]) | |
1468 | ||
1469 | ||
99246c90 | 1470 | dnl |
8bd636c5 | 1471 | dnl Check for whether or not to do shadowed C headers. |
99246c90 PE |
1472 | dnl |
1473 | dnl GLIBCPP_ENABLE_SHADOW | |
d0d88ce3 BK |
1474 | dnl --enable-cshadow-headers [does stuff]. |
1475 | dnl --disable-cshadow-headers [does not do stuff]. | |
99246c90 PE |
1476 | dnl + This will eventually need to be on by default. |
1477 | dnl + Usage: GLIBCPP_ENABLE_SHADOW[(DEFAULT)] | |
1478 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
1479 | dnl defaults to `no'. | |
1480 | AC_DEFUN(GLIBCPP_ENABLE_SHADOW, [dnl | |
1481 | define([GLIBCPP_ENABLE_SHADOW_DEFAULT], ifelse($1, yes, yes, no))dnl | |
d0d88ce3 BK |
1482 | AC_MSG_CHECKING([for enabled cshadow headers]) |
1483 | AC_ARG_ENABLE(cshadow-headers, | |
99246c90 | 1484 | changequote(<<, >>)dnl |
d0d88ce3 BK |
1485 | << --enable-cshadow-headers construct "shadowed" C header files for |
1486 | g++ [default=>>GLIBCPP_ENABLE_SHADOW_DEFAULT], | |
5780a46b BK |
1487 | changequote([, ]) |
1488 | [case "$enableval" in | |
1489 | yes) enable_cshadow_headers=yes | |
d0d88ce3 | 1490 | ;; |
5780a46b | 1491 | no) enable_cshadow_headers=no |
d0d88ce3 | 1492 | ;; |
5780a46b | 1493 | *) AC_MSG_ERROR([Unknown argument to enable/disable shadowed C headers]) |
d0d88ce3 | 1494 | ;; |
5780a46b BK |
1495 | esac], |
1496 | enable_cshadow_headers=GLIBCPP_ENABLE_SHADOW_DEFAULT) | |
1497 | AC_MSG_RESULT($enable_cshadow_headers) | |
1498 | ||
1499 | dnl Option parsed, now set things appropriately | |
0517cb99 | 1500 | dnl NB: these things may be duplicated in c++config.h as well. |
5780a46b | 1501 | case "$enable_cshadow_headers" in |
99246c90 | 1502 | yes) |
e466dc8a BK |
1503 | CSHADOW_FLAGS="-fno-builtin" |
1504 | C_INCLUDE_DIR='$(top_srcdir)/include/c_std' | |
0517cb99 | 1505 | AC_DEFINE(_GLIBCPP_USE_SHADOW_HEADERS) |
99246c90 PE |
1506 | ;; |
1507 | no) | |
e466dc8a BK |
1508 | CSHADOW_FLAGS="" |
1509 | C_INCLUDE_DIR='$(top_srcdir)/include/c' | |
99246c90 | 1510 | ;; |
5780a46b | 1511 | esac |
5b80666b | 1512 | |
e466dc8a BK |
1513 | AC_SUBST(CSHADOW_FLAGS) |
1514 | AC_SUBST(C_INCLUDE_DIR) | |
5780a46b | 1515 | AM_CONDITIONAL(GLIBCPP_USE_CSHADOW, test "$enable_cshadow_headers" = yes) |
99246c90 | 1516 | ]) |
b2dad0e3 | 1517 | |
e466dc8a BK |
1518 | dnl |
1519 | dnl Set up *_INCLUDES and *_INCLUDE_DIR variables for all sundry Makefile.am's. | |
1520 | dnl | |
1521 | dnl GLIBCPP_INCLUDE_DIR | |
1522 | dnl C_INCLUDE_DIR | |
1523 | dnl TOPLEVEL_INCLUDES | |
1524 | dnl LIBMATH_INCLUDES | |
1525 | dnl LIBSUPCXX_INCLUDES | |
1526 | dnl LIBIO_INCLUDES | |
1527 | dnl CSHADOW_INCLUDES | |
1528 | dnl | |
1529 | dnl GLIBCPP_EXPORT_INCLUDE | |
1530 | AC_DEFUN(GLIBCPP_EXPORT_INCLUDES, [ | |
1531 | # Root level of the include sources. | |
1532 | GLIBCPP_INCLUDE_DIR='$(top_srcdir)/include' | |
1533 | ||
1534 | # Can either use include/c or include/c_std to grab "C" headers. This | |
1535 | # variable is set to the include directory currently in use. | |
1536 | # set with C_INCLUDE_DIR in GLIBCPP_ENABLE_SHADOW | |
1537 | ||
1538 | # Passed down for cross compilers, canadian crosses. | |
1539 | TOPLEVEL_INCLUDES='-I$(includedir)' | |
1540 | ||
1541 | LIBMATH_INCLUDES='-I$(top_srcdir)/libmath' | |
1542 | ||
1543 | LIBSUPCXX_INCLUDES='-I$(top_srcdir)/libsupc++' | |
1544 | ||
1545 | #if GLIBCPP_NEED_LIBIO | |
1546 | LIBIO_INCLUDES='-I$(top_builddir)/libio -I$(top_srcdir)/libio' | |
1547 | #else | |
1548 | #LIBIO_INCLUDES='-I$(top_srcdir)/libio' | |
1549 | #endif | |
1550 | ||
1551 | #if GLIBCPP_USE_CSHADOW | |
1552 | # CSHADOW_INCLUDES='-I$(GLIBCPP_INCLUDE_DIR)/std -I$(C_INCLUDE_DIR) \ | |
1553 | # -I$(top_blddir)/cshadow' | |
1554 | #else | |
1555 | CSHADOW_INCLUDES='-I$(GLIBCPP_INCLUDE_DIR)/std -I$(C_INCLUDE_DIR)' | |
1556 | #endif | |
1557 | ||
1558 | # Now, export this to all the little Makefiles.... | |
1559 | AC_SUBST(GLIBCPP_INCLUDE_DIR) | |
1560 | AC_SUBST(TOPLEVEL_INCLUDES) | |
1561 | AC_SUBST(LIBMATH_INCLUDES) | |
1562 | AC_SUBST(LIBSUPCXX_INCLUDES) | |
1563 | AC_SUBST(LIBIO_INCLUDES) | |
1564 | AC_SUBST(CSHADOW_INCLUDES) | |
1565 | ]) | |
1566 | ||
1567 | ||
1568 | dnl | |
1569 | dnl Set up *_FLAGS and *FLAGS variables for all sundry Makefile.am's. | |
1570 | dnl | |
1571 | AC_DEFUN(GLIBCPP_EXPORT_FLAGS, [ | |
1572 | # Optimization flags that are probably a good idea for thrill-seekers. Just | |
1573 | # uncomment the lines below and make, everything else is ready to go... | |
1574 | # OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc | |
1575 | OPTIMIZE_CXXFLAGS= | |
1576 | AC_SUBST(OPTIMIZE_CXXFLAGS) | |
1577 | ||
1578 | WARN_FLAGS='-Wall -Wno-format -W -Wwrite-strings -Winline' | |
1579 | AC_SUBST(WARN_FLAGS) | |
1580 | ]) | |
1581 | ||
b2dad0e3 | 1582 | |
af9fe0d1 BK |
1583 | # Check whether LC_MESSAGES is available in <locale.h>. |
1584 | # Ulrich Drepper <drepper@cygnus.com>, 1995. | |
1585 | # | |
1586 | # This file file be copied and used freely without restrictions. It can | |
1587 | # be used in projects which are not available under the GNU Public License | |
1588 | # but which still want to provide support for the GNU gettext functionality. | |
1589 | # Please note that the actual code is *not* freely available. | |
1590 | ||
1591 | # serial 1 | |
1592 | ||
1593 | AC_DEFUN(AC_LC_MESSAGES, | |
1594 | [if test $ac_cv_header_locale_h = yes; then | |
1595 | AC_CACHE_CHECK([for LC_MESSAGES], ac_cv_val_LC_MESSAGES, | |
1596 | [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES], | |
1597 | ac_cv_val_LC_MESSAGES=yes, ac_cv_val_LC_MESSAGES=no)]) | |
1598 | if test $ac_cv_val_LC_MESSAGES = yes; then | |
1599 | AC_DEFINE(HAVE_LC_MESSAGES) | |
1600 | fi | |
1601 | fi]) | |
1602 | ||
1603 | ||
1604 | # Check for functions in math library. | |
1605 | # Ulrich Drepper <drepper@cygnus.com>, 1998. | |
1606 | # | |
1607 | # This file can be copied and used freely without restrictions. It can | |
1608 | # be used in projects which are not available under the GNU Public License | |
1609 | # but which still want to provide support for the GNU gettext functionality. | |
1610 | # Please note that the actual code is *not* freely available. | |
1611 | ||
1612 | # serial 1 | |
1613 | ||
1614 | dnl AC_REPLACE_MATHFUNCS(FUNCTION...) | |
1615 | AC_DEFUN(AC_REPLACE_MATHFUNCS, | |
1616 | [AC_CHECK_FUNCS([$1], , [LIBMATHOBJS="$LIBMATHOBJS ${ac_func}.lo"]) | |
1617 | AC_SUBST(LIBMATHOBJS)dnl | |
1618 | ]) | |
1619 | ||
1620 | ||
1621 | # Check for string functions. | |
1622 | # Ulrich Drepper <drepper@cygnus.com>, 1998. | |
1623 | # | |
1624 | # This file can be copied and used freely without restrictions. It can | |
1625 | # be used in projects which are not available under the GNU Public License | |
1626 | # but which still want to provide support for the GNU gettext functionality. | |
1627 | # Please note that the actual code is *not* freely available. | |
1628 | ||
1629 | # serial 1 | |
1630 | ||
1631 | dnl AC_REPLACE_STRINGFUNCS(FUNCTION...) | |
1632 | AC_DEFUN(AC_REPLACE_STRINGFUNCS, | |
1633 | [AC_CHECK_FUNCS([$1], , [LIBSTRINGOBJS="$LIBSTRINGOBJS ${ac_func}.lo"]) | |
1634 | AC_SUBST(LIBSTRINGOBJS)dnl | |
1635 | ]) | |
b2dad0e3 | 1636 | |
29bd52c8 PE |
1637 | |
1638 | dnl This macro searches for a GNU version of make. If a match is found, the | |
1639 | dnl makefile variable `ifGNUmake' is set to the empty string, otherwise it is | |
99b51359 | 1640 | dnl set to "#". This is useful for including a special features in a Makefile, |
29bd52c8 PE |
1641 | dnl which cannot be handled by other versions of make. The variable |
1642 | dnl _cv_gnu_make_command is set to the command to invoke GNU make if it exists, | |
1643 | dnl the empty string otherwise. | |
1644 | dnl | |
1645 | dnl Here is an example of its use: | |
1646 | dnl | |
1647 | dnl Makefile.in might contain: | |
1648 | dnl | |
1649 | dnl # A failsafe way of putting a dependency rule into a makefile | |
1650 | dnl $(DEPEND): | |
1651 | dnl $(CC) -MM $(srcdir)/*.c > $(DEPEND) | |
1652 | dnl | |
1653 | dnl @ifGNUmake@ ifeq ($(DEPEND),$(wildcard $(DEPEND))) | |
1654 | dnl @ifGNUmake@ include $(DEPEND) | |
1655 | dnl @ifGNUmake@ endif | |
1656 | dnl | |
1657 | dnl Then configure.in would normally contain: | |
1658 | dnl | |
1659 | dnl CHECK_GNU_MAKE() | |
1660 | dnl AC_OUTPUT(Makefile) | |
1661 | dnl | |
1662 | dnl Then perhaps to cause gnu make to override any other make, we could do | |
1663 | dnl something like this (note that GNU make always looks for GNUmakefile first): | |
1664 | dnl | |
1665 | dnl if ! test x$_cv_gnu_make_command = x ; then | |
1666 | dnl mv Makefile GNUmakefile | |
1667 | dnl echo .DEFAULT: > Makefile ; | |
1668 | dnl echo \ $_cv_gnu_make_command \$@ >> Makefile; | |
1669 | dnl fi | |
1670 | dnl | |
1671 | dnl Then, if any (well almost any) other make is called, and GNU make also | |
1672 | dnl exists, then the other make wraps the GNU make. | |
1673 | dnl | |
1674 | dnl @author John Darrington <j.darrington@elvis.murdoch.edu.au> | |
421173e6 | 1675 | dnl @version 1.1 #### replaced Id string now that Id is for lib-v3; pme |
29bd52c8 PE |
1676 | dnl |
1677 | dnl #### Changes for libstdc++-v3: reformatting and linewrapping; prepending | |
1678 | dnl #### GLIBCPP_ to the macro name; adding the :-make fallback in the | |
79f5e38e BC |
1679 | dnl #### conditional's subshell (" --version" is not a command), using a |
1680 | dnl #### different option to grep(1). | |
29bd52c8 PE |
1681 | dnl #### -pme |
1682 | AC_DEFUN( | |
1683 | GLIBCPP_CHECK_GNU_MAKE, [AC_CACHE_CHECK( for GNU make,_cv_gnu_make_command, | |
1684 | _cv_gnu_make_command='' ; | |
1685 | dnl Search all the common names for GNU make | |
1686 | for a in "${MAKE:-make}" make gmake gnumake ; do | |
5219f162 | 1687 | if ( $a --version 2> /dev/null | grep -c GNU ) |
79f5e38e | 1688 | then |
29bd52c8 PE |
1689 | _cv_gnu_make_command=$a ; |
1690 | break; | |
1691 | fi | |
1692 | done ; | |
1693 | ) ; | |
1694 | dnl If there was a GNU version, then set @ifGNUmake@ to the empty | |
1695 | dnl string, '#' otherwise | |
1696 | if test "x$_cv_gnu_make_command" != "x" ; then | |
1697 | ifGNUmake='' ; | |
1698 | else | |
1699 | ifGNUmake='#' ; | |
1700 | fi | |
1701 | AC_SUBST(ifGNUmake) | |
1702 | ]) | |
1703 | ||
3df64633 AO |
1704 | sinclude(../libtool.m4) |
1705 | dnl The lines below arrange for aclocal not to bring an installed | |
1706 | dnl libtool.m4 into aclocal.m4, while still arranging for automake to | |
1707 | dnl add a definition of LIBTOOL to Makefile.in. | |
1708 | ifelse(,,,[AC_SUBST(LIBTOOL) | |
1709 | AC_DEFUN([AM_PROG_LIBTOOL]) | |
1710 | AC_DEFUN([AC_LIBTOOL_DLOPEN]) | |
1711 | AC_DEFUN([AC_PROG_LD]) | |
1712 | ]) | |
7f586614 | 1713 | |
9a200b0a | 1714 | |
b2dad0e3 BK |
1715 | # Do all the work for Automake. This macro actually does too much -- |
1716 | # some checks are only needed if your package does certain things. | |
1717 | # But this isn't really a big deal. | |
1718 | ||
1719 | # serial 1 | |
1720 | ||
1721 | dnl Usage: | |
1722 | dnl AM_INIT_AUTOMAKE(package,version, [no-define]) | |
1723 | ||
1724 | AC_DEFUN(AM_INIT_AUTOMAKE, | |
1725 | [AC_REQUIRE([AC_PROG_INSTALL]) | |
1726 | PACKAGE=[$1] | |
1727 | AC_SUBST(PACKAGE) | |
1728 | VERSION=[$2] | |
1729 | AC_SUBST(VERSION) | |
1730 | dnl test to see if srcdir already configured | |
1731 | if test "`cd $srcdir && pwd`" != "`pwd`" && test -f $srcdir/config.status; then | |
1732 | AC_MSG_ERROR([source directory already configured; run "make distclean" there first]) | |
1733 | fi | |
1734 | ifelse([$3],, | |
1735 | AC_DEFINE_UNQUOTED(PACKAGE, "$PACKAGE", [Name of package]) | |
1736 | AC_DEFINE_UNQUOTED(VERSION, "$VERSION", [Version number of package])) | |
1737 | AC_REQUIRE([AM_SANITY_CHECK]) | |
1738 | AC_REQUIRE([AC_ARG_PROGRAM]) | |
1739 | dnl FIXME This is truly gross. | |
1740 | missing_dir=`cd $ac_aux_dir && pwd` | |
1741 | AM_MISSING_PROG(ACLOCAL, aclocal, $missing_dir) | |
1742 | AM_MISSING_PROG(AUTOCONF, autoconf, $missing_dir) | |
1743 | AM_MISSING_PROG(AUTOMAKE, automake, $missing_dir) | |
1744 | AM_MISSING_PROG(AUTOHEADER, autoheader, $missing_dir) | |
1745 | AM_MISSING_PROG(MAKEINFO, makeinfo, $missing_dir) | |
1746 | AC_REQUIRE([AC_PROG_MAKE_SET])]) | |
1747 | ||
1748 | # | |
1749 | # Check to make sure that the build environment is sane. | |
1750 | # | |
1751 | ||
1752 | AC_DEFUN(AM_SANITY_CHECK, | |
1753 | [AC_MSG_CHECKING([whether build environment is sane]) | |
1754 | # Just in case | |
1755 | sleep 1 | |
1756 | echo timestamp > conftestfile | |
1757 | # Do `set' in a subshell so we don't clobber the current shell's | |
1758 | # arguments. Must try -L first in case configure is actually a | |
1759 | # symlink; some systems play weird games with the mod time of symlinks | |
1760 | # (eg FreeBSD returns the mod time of the symlink's containing | |
1761 | # directory). | |
1762 | if ( | |
1763 | set X `ls -Lt $srcdir/configure conftestfile 2> /dev/null` | |
1764 | if test "[$]*" = "X"; then | |
1765 | # -L didn't work. | |
1766 | set X `ls -t $srcdir/configure conftestfile` | |
1767 | fi | |
1768 | if test "[$]*" != "X $srcdir/configure conftestfile" \ | |
1769 | && test "[$]*" != "X conftestfile $srcdir/configure"; then | |
1770 | ||
1771 | # If neither matched, then we have a broken ls. This can happen | |
1772 | # if, for instance, CONFIG_SHELL is bash and it inherits a | |
1773 | # broken ls alias from the environment. This has actually | |
1774 | # happened. Such a system could not be considered "sane". | |
1775 | AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken | |
1776 | alias in your environment]) | |
1777 | fi | |
1778 | ||
1779 | test "[$]2" = conftestfile | |
1780 | ) | |
1781 | then | |
1782 | # Ok. | |
1783 | : | |
1784 | else | |
1785 | AC_MSG_ERROR([newly created file is older than distributed files! | |
1786 | Check your system clock]) | |
1787 | fi | |
1788 | rm -f conftest* | |
1789 | AC_MSG_RESULT(yes)]) | |
1790 | ||
1791 | dnl AM_MISSING_PROG(NAME, PROGRAM, DIRECTORY) | |
1792 | dnl The program must properly implement --version. | |
1793 | AC_DEFUN(AM_MISSING_PROG, | |
1794 | [AC_MSG_CHECKING(for working $2) | |
1795 | # Run test in a subshell; some versions of sh will print an error if | |
1796 | # an executable is not found, even if stderr is redirected. | |
1797 | # Redirect stdin to placate older versions of autoconf. Sigh. | |
1798 | if ($2 --version) < /dev/null > /dev/null 2>&1; then | |
1799 | $1=$2 | |
1800 | AC_MSG_RESULT(found) | |
1801 | else | |
1802 | $1="$3/missing $2" | |
1803 | AC_MSG_RESULT(missing) | |
1804 | fi | |
1805 | AC_SUBST($1)]) | |
1806 | ||
1807 | # Add --enable-maintainer-mode option to configure. | |
1808 | # From Jim Meyering | |
1809 | ||
1810 | # serial 1 | |
1811 | ||
1812 | AC_DEFUN(AM_MAINTAINER_MODE, | |
1813 | [AC_MSG_CHECKING([whether to enable maintainer-specific portions of Makefiles]) | |
1814 | dnl maintainer-mode is disabled by default | |
1815 | AC_ARG_ENABLE(maintainer-mode, | |
1816 | [ --enable-maintainer-mode enable make rules and dependencies not useful | |
1817 | (and sometimes confusing) to the casual installer], | |
1818 | USE_MAINTAINER_MODE=$enableval, | |
1819 | USE_MAINTAINER_MODE=no) | |
1820 | AC_MSG_RESULT($USE_MAINTAINER_MODE) | |
1821 | AM_CONDITIONAL(MAINTAINER_MODE, test $USE_MAINTAINER_MODE = yes) | |
1822 | MAINT=$MAINTAINER_MODE_TRUE | |
1823 | AC_SUBST(MAINT)dnl | |
1824 | ] | |
1825 | ) | |
1826 | ||
1827 | # Define a conditional. | |
1828 | ||
1829 | AC_DEFUN(AM_CONDITIONAL, | |
1830 | [AC_SUBST($1_TRUE) | |
1831 | AC_SUBST($1_FALSE) | |
1832 | if $2; then | |
1833 | $1_TRUE= | |
1834 | $1_FALSE='#' | |
1835 | else | |
1836 | $1_TRUE='#' | |
1837 | $1_FALSE= | |
1838 | fi]) | |
1839 | ||
b2dad0e3 BK |
1840 | # Like AC_CONFIG_HEADER, but automatically create stamp file. |
1841 | ||
1842 | AC_DEFUN(AM_CONFIG_HEADER, | |
1843 | [AC_PREREQ([2.12]) | |
1844 | AC_CONFIG_HEADER([$1]) | |
1845 | dnl When config.status generates a header, we must update the stamp-h file. | |
1846 | dnl This file resides in the same directory as the config header | |
1847 | dnl that is generated. We must strip everything past the first ":", | |
1848 | dnl and everything past the last "/". | |
1849 | AC_OUTPUT_COMMANDS(changequote(<<,>>)dnl | |
1850 | ifelse(patsubst(<<$1>>, <<[^ ]>>, <<>>), <<>>, | |
1851 | <<test -z "<<$>>CONFIG_HEADERS" || echo timestamp > patsubst(<<$1>>, <<^\([^:]*/\)?.*>>, <<\1>>)stamp-h<<>>dnl>>, | |
1852 | <<am_indx=1 | |
1853 | for am_file in <<$1>>; do | |
1854 | case " <<$>>CONFIG_HEADERS " in | |
1855 | *" <<$>>am_file "*<<)>> | |
1856 | echo timestamp > `echo <<$>>am_file | sed -e 's%:.*%%' -e 's%[^/]*$%%'`stamp-h$am_indx | |
1857 | ;; | |
1858 | esac | |
1859 | am_indx=`expr "<<$>>am_indx" + 1` | |
1860 | done<<>>dnl>>) | |
1861 | changequote([,]))]) | |
1862 |