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Commit | Line | Data |
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b2dad0e3 BK |
1 | dnl |
2 | dnl Initialize configure bits. | |
3 | dnl | |
4 | dnl Define OPTLEVEL='-O2' if new inlining code present. | |
5 | dnl | |
6 | dnl GLIBCPP_CONFIGURE | |
7 | AC_DEFUN(GLIBCPP_CONFIGURE, [ | |
8 | dnl Default to --enable-multilib | |
9 | AC_ARG_ENABLE(multilib, | |
10 | [ --enable-multilib build hella library versions (default)], | |
11 | [case "${enableval}" in | |
12 | yes) multilib=yes ;; | |
13 | no) multilib=no ;; | |
14 | *) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;; | |
15 | esac], [multilib=yes])dnl | |
16 | ||
17 | dnl We may get other options which we dont document: | |
18 | dnl --with-target-subdir, --with-multisrctop, --with-multisubdir | |
19 | if test "[$]{srcdir}" = "."; then | |
20 | if test "[$]{with_target_subdir}" != "."; then | |
21 | glibcpp_basedir="[$]{srcdir}/[$]{with_multisrctop}../$1" | |
22 | else | |
23 | glibcpp_basedir="[$]{srcdir}/[$]{with_multisrctop}$1" | |
24 | fi | |
25 | else | |
26 | glibcpp_basedir="[$]{srcdir}/$1" | |
27 | fi | |
28 | AC_SUBST(glibcpp_basedir) | |
29 | ||
b2dad0e3 BK |
30 | AM_INIT_AUTOMAKE(libstdc++, 2.90.8) |
31 | ||
28861379 BK |
32 | # Never versions of autoconf add an underscore to these functions. |
33 | # Prevent future problems ... | |
34 | ifdef([AC_PROG_CC_G],[],[define([AC_PROG_CC_G],defn([_AC_PROG_CC_G]))]) | |
35 | ifdef([AC_PROG_CC_GNU],[],[define([AC_PROG_CC_GNU],defn([_AC_PROG_CC_GNU]))]) | |
36 | ifdef([AC_PROG_CXX_G],[],[define([AC_PROG_CXX_G],defn([_AC_PROG_CXX_G]))]) | |
37 | ifdef([AC_PROG_CXX_GNU],[],[define([AC_PROG_CXX_GNU],defn([_AC_PROG_CXX_GNU]))]) | |
5780a46b BK |
38 | |
39 | # AC_PROG_CC | |
40 | ||
b2dad0e3 BK |
41 | # FIXME: We temporarily define our own version of AC_PROG_CC. This is |
42 | # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We | |
43 | # are probably using a cross compiler, which will not be able to fully | |
44 | # link an executable. This should really be fixed in autoconf | |
45 | # itself. | |
46 | ||
47 | AC_DEFUN(LIB_AC_PROG_CC, | |
48 | [AC_BEFORE([$0], [AC_PROG_CPP])dnl | |
49 | dnl Fool anybody using AC_PROG_CC. | |
50 | AC_PROVIDE([AC_PROG_CC]) | |
51 | AC_CHECK_PROG(CC, gcc, gcc) | |
52 | if test -z "$CC"; then | |
53 | AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc) | |
54 | test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH]) | |
55 | fi | |
56 | ||
57 | AC_PROG_CC_GNU | |
58 | ||
59 | if test $ac_cv_prog_gcc = yes; then | |
60 | GCC=yes | |
61 | dnl Check whether -g works, even if CFLAGS is set, in case the package | |
62 | dnl plays around with CFLAGS (such as to build both debugging and | |
63 | dnl normal versions of a library), tasteless as that idea is. | |
64 | ac_test_CFLAGS="${CFLAGS+set}" | |
65 | ac_save_CFLAGS="$CFLAGS" | |
66 | CFLAGS= | |
67 | AC_PROG_CC_G | |
68 | if test "$ac_test_CFLAGS" = set; then | |
69 | CFLAGS="$ac_save_CFLAGS" | |
70 | elif test $ac_cv_prog_cc_g = yes; then | |
71 | CFLAGS="-g -O2" | |
72 | else | |
73 | CFLAGS="-O2" | |
74 | fi | |
75 | else | |
76 | GCC= | |
77 | test "${CFLAGS+set}" = set || CFLAGS="-g" | |
78 | fi | |
79 | ]) | |
80 | ||
81 | LIB_AC_PROG_CC | |
82 | ||
5780a46b BK |
83 | # Can't just call these here as g++ requires libstc++ to be built.... |
84 | # AC_PROG_CXX | |
85 | ||
b2dad0e3 BK |
86 | # Likewise for AC_PROG_CXX. |
87 | AC_DEFUN(LIB_AC_PROG_CXX, | |
88 | [AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl | |
89 | dnl Fool anybody using AC_PROG_CXX. | |
90 | AC_PROVIDE([AC_PROG_CXX]) | |
91 | AC_CHECK_PROGS(CXX, $CCC c++ g++ gcc CC cxx cc++, gcc) | |
92 | test -z "$CXX" && AC_MSG_ERROR([no acceptable c++ found in \$PATH]) | |
93 | ||
94 | AC_PROG_CXX_GNU | |
95 | ||
96 | if test $ac_cv_prog_gxx = yes; then | |
97 | GXX=yes | |
98 | dnl Check whether -g works, even if CXXFLAGS is set, in case the package | |
99 | dnl plays around with CXXFLAGS (such as to build both debugging and | |
100 | dnl normal versions of a library), tasteless as that idea is. | |
101 | ac_test_CXXFLAGS="${CXXFLAGS+set}" | |
102 | ac_save_CXXFLAGS="$CXXFLAGS" | |
103 | CXXFLAGS= | |
104 | AC_PROG_CXX_G | |
105 | if test "$ac_test_CXXFLAGS" = set; then | |
106 | CXXFLAGS="$ac_save_CXXFLAGS" | |
107 | elif test $ac_cv_prog_cxx_g = yes; then | |
108 | CXXFLAGS="-g -O2" | |
109 | else | |
110 | CXXFLAGS="-O2" | |
111 | fi | |
112 | else | |
113 | GXX= | |
114 | test "${CXXFLAGS+set}" = set || CXXFLAGS="-g" | |
115 | fi | |
116 | ]) | |
117 | ||
118 | LIB_AC_PROG_CXX | |
119 | ||
5780a46b BK |
120 | AC_CHECK_TOOL(AS, as) |
121 | AC_CHECK_TOOL(AR, ar) | |
122 | AC_CHECK_TOOL(RANLIB, ranlib, :) | |
123 | ||
124 | AC_PROG_INSTALL | |
b2dad0e3 | 125 | |
5780a46b | 126 | AM_MAINTAINER_MODE |
b2dad0e3 | 127 | |
5780a46b BK |
128 | # We need AC_EXEEXT to keep automake happy in cygnus mode. However, |
129 | # at least currently, we never actually build a program, so we never | |
130 | # need to use $(EXEEXT). Moreover, the test for EXEEXT normally | |
131 | # fails, because we are probably configuring with a cross compiler | |
132 | # which cant create executables. So we include AC_EXEEXT to keep | |
133 | # automake happy, but we dont execute it, since we dont care about | |
15bcd79a | 134 | # the result. |
5780a46b BK |
135 | if false; then |
136 | AC_EXEEXT | |
137 | fi | |
b2dad0e3 | 138 | |
5780a46b | 139 | # configure.host sets the following important variables |
8b8ab21c BK |
140 | # glibcpp_cflags - host specific C compiler flags |
141 | # glibcpp_cxxflags - host specific C++ compiler flags | |
5780a46b BK |
142 | glibcpp_cflags= |
143 | glibcpp_cxxflags= | |
b2dad0e3 | 144 | |
5780a46b BK |
145 | . [$]{glibcpp_basedir}/configure.host |
146 | ||
147 | case [$]{glibcpp_basedir} in | |
148 | /* | [A-Za-z]:[/\\]*) libgcj_flagbasedir=[$]{glibcpp_basedir} ;; | |
149 | *) glibcpp_flagbasedir='[$](top_builddir)/'[$]{glibcpp_basedir} ;; | |
150 | esac | |
b2dad0e3 | 151 | |
5780a46b BK |
152 | GLIBCPP_CFLAGS="[$]{glibcpp_cflags}" |
153 | GLIBCPP_CXXFLAGS="[$]{glibcpp_cxxflags}" | |
154 | AC_SUBST(GLIBCPP_CFLAGS) | |
155 | AC_SUBST(GLIBCPP_CXXFLAGS) | |
b2dad0e3 BK |
156 | ]) |
157 | ||
158 | ||
159 | dnl | |
8bd636c5 | 160 | dnl Check to see if g++ can compile this library, and if so, if any version- |
c470c17d BK |
161 | dnl specific precautions need to be taken. |
162 | dnl | |
163 | dnl GLIBCPP_CHECK_COMPILER_VERSION | |
164 | AC_DEFUN(GLIBCPP_CHECK_COMPILER_VERSION, [ | |
c470c17d BK |
165 | # Sanity check that g++ is capable of dealing with v-3. |
166 | AC_MSG_CHECKING([for g++ that will successfully compile this code]) | |
167 | AC_EGREP_CPP([ok], [ | |
168 | #if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 95) | |
169 | ok | |
170 | #endif | |
8b8ab21c | 171 | ], gpp_satisfactory=yes, AC_MSG_ERROR([please upgrade to gcc-2.95 or above])) |
c470c17d BK |
172 | AC_MSG_RESULT($gpp_satisfactory) |
173 | ]) | |
174 | ||
175 | ||
176 | dnl | |
177 | dnl Test for newer compiler features, or features that are present in newer | |
d3a12960 BK |
178 | dnl compiler version but not older compiler versions should be placed |
179 | dnl here. | |
b2dad0e3 | 180 | dnl |
c470c17d BK |
181 | dnl Define WFMT_FLAGS='-fdiagnostics-show-location=once' if possible |
182 | dnl | |
7f586614 BK |
183 | dnl Define WERROR='-Werror' if requested and possible; g++'s that lack the |
184 | dnl new inlining code or the new system_header pragma will die on -Werror. | |
185 | dnl Leave it out by default and use maint-mode to use it. | |
b2dad0e3 | 186 | dnl |
c470c17d BK |
187 | dnl Define SECTION_FLAGS='-ffunction-sections -fdata-sections' if |
188 | dnl compiler supports it. | |
189 | dnl GLIBCPP_CHECK_COMPILER_FEATURES | |
190 | AC_DEFUN(GLIBCPP_CHECK_COMPILER_FEATURES, [ | |
a4e99046 PE |
191 | # All these tests are for C++; save the language and the compiler flags. |
192 | # The CXXFLAGS thing is suspicious, but based on similar bits | |
193 | # found in GLIBCPP_CONFIGURE. | |
194 | AC_LANG_SAVE | |
195 | AC_LANG_CPLUSPLUS | |
196 | ac_test_CXXFLAGS="${CXXFLAGS+set}" | |
197 | ac_save_CXXFLAGS="$CXXFLAGS" | |
a4e99046 | 198 | |
7f586614 BK |
199 | # Check for maintainer-mode bits. |
200 | if test x"$USE_MAINTAINER_MODE" = xno; then | |
201 | WERROR='' | |
8bd636c5 | 202 | else |
7f586614 | 203 | WERROR='-Werror' |
8bd636c5 PE |
204 | fi |
205 | ||
d3a12960 BK |
206 | # Check for more sophisticated diagnostic control. |
207 | AC_MSG_CHECKING([for g++ that supports -fdiagnostics-show-location=once]) | |
0517cb99 | 208 | CXXFLAGS='-Werror -fdiagnostics-show-location=once' |
a4e99046 PE |
209 | AC_TRY_COMPILE(, [int foo; |
210 | ], [ac_gabydiags=yes], [ac_gabydiags=no]) | |
211 | if test "$ac_test_CXXFLAGS" = set; then | |
212 | CXXFLAGS="$ac_save_CXXFLAGS" | |
213 | else | |
214 | # this is the suspicious part | |
215 | CXXFLAGS='' | |
216 | fi | |
217 | if test "$ac_gabydiags" = "yes"; then | |
c470c17d | 218 | WFMT_FLAGS='-fdiagnostics-show-location=once' |
a4e99046 PE |
219 | fi |
220 | AC_MSG_RESULT($ac_gabydiags) | |
221 | ||
c470c17d BK |
222 | # Check for -ffunction-sections -fdata-sections |
223 | AC_MSG_CHECKING([for g++ that supports -ffunction-sections -fdata-sections]) | |
0517cb99 | 224 | CXXFLAGS='-Werror -ffunction-sections -fdata-sections' |
c470c17d BK |
225 | AC_TRY_COMPILE(, [int foo; |
226 | ], [ac_fdsections=yes], [ac_fdsections=no]) | |
227 | if test "$ac_test_CXXFLAGS" = set; then | |
228 | CXXFLAGS="$ac_save_CXXFLAGS" | |
229 | else | |
230 | # this is the suspicious part | |
231 | CXXFLAGS='' | |
232 | fi | |
233 | if test "$ac_fdsections" = "yes"; then | |
234 | SECTION_FLAGS='-ffunction-sections -fdata-sections' | |
235 | fi | |
236 | AC_MSG_RESULT($ac_fdsections) | |
237 | ||
a4e99046 | 238 | AC_LANG_RESTORE |
8bd636c5 | 239 | AC_SUBST(WERROR) |
c470c17d BK |
240 | AC_SUBST(WFMT_FLAGS) |
241 | AC_SUBST(SECTION_FLAGS) | |
b2dad0e3 BK |
242 | ]) |
243 | ||
c470c17d BK |
244 | |
245 | dnl | |
421173e6 PE |
246 | dnl If GNU ld is in use, check to see if tricky linker opts can be used. If |
247 | dnl the native linker is in use, all variables will be defined to something | |
248 | dnl safe (like an empty string). | |
249 | dnl | |
250 | dnl Define SECTION_LDFLAGS='-Wl,--gc-sections' if possible. | |
251 | dnl Define OPT_LDFLAGS='-Wl,-O1' if possible. | |
c470c17d | 252 | dnl |
c470c17d BK |
253 | dnl GLIBCPP_CHECK_LINKER_FEATURES |
254 | AC_DEFUN(GLIBCPP_CHECK_LINKER_FEATURES, [ | |
421173e6 PE |
255 | # If we're not using GNU ld, then there's no point in even trying these |
256 | # tests. Check for that first. We should have already tested for gld | |
257 | # by now (in libtool), but require it now just to be safe... | |
a9117427 BK |
258 | SECTION_LDFLAGS='' |
259 | OPT_LDFLAGS='' | |
421173e6 | 260 | AC_REQUIRE([AC_PROG_LD]) |
5bd17d39 PE |
261 | |
262 | # Set --gc-sections. | |
263 | if test "$ac_cv_prog_gnu_ld" = "broken"; then | |
a9117427 | 264 | # GNU ld it is! Joy and bunny rabbits! |
421173e6 PE |
265 | |
266 | # All these tests are for C++; save the language and the compiler flags. | |
267 | # Need to do this so that g++ won't try to link in libstdc++ | |
268 | ac_test_CFLAGS="${CFLAGS+set}" | |
269 | ac_save_CFLAGS="$CFLAGS" | |
5bd17d39 | 270 | CFLAGS='-x c++ -Wl,--gc-sections' |
421173e6 PE |
271 | |
272 | # Check for -Wl,--gc-sections | |
e466dc8a BK |
273 | # XXX This test is broken at the moment, as symbols required for |
274 | # linking are now in libsupc++ (not built yet.....). In addition, | |
a9117427 BK |
275 | # this test has cored on solaris in the past. In addition, |
276 | # --gc-sections doesn't really work at the moment (keeps on discarding | |
277 | # used sections, first .eh_frame and now some of the glibc sections for | |
278 | # iconv). Bzzzzt. Thanks for playing, maybe next time. | |
421173e6 PE |
279 | AC_MSG_CHECKING([for ld that supports -Wl,--gc-sections]) |
280 | AC_TRY_RUN([ | |
281 | int main(void) | |
282 | { | |
a9117427 BK |
283 | try { throw 1; } |
284 | catch (...) { }; | |
421173e6 PE |
285 | return 0; |
286 | } | |
e466dc8a | 287 | ], [ac_sectionLDflags=yes],[ac_sectionLFflags=no], [ac_sectionLDflags=yes]) |
421173e6 PE |
288 | if test "$ac_test_CFLAGS" = set; then |
289 | CFLAGS="$ac_save_CFLAGS" | |
290 | else | |
291 | # this is the suspicious part | |
292 | CFLAGS='' | |
293 | fi | |
294 | if test "$ac_sectionLDflags" = "yes"; then | |
5bd17d39 | 295 | SECTION_LDFLAGS='-Wl,--gc-sections' |
421173e6 PE |
296 | fi |
297 | AC_MSG_RESULT($ac_sectionLDflags) | |
5bd17d39 | 298 | fi |
a9117427 | 299 | |
5bd17d39 PE |
300 | # Set linker optimization flags. |
301 | if test "$ac_cv_prog_gnu_ld" = "yes"; then | |
421173e6 | 302 | OPT_LDFLAGS='-Wl,-O1' |
421173e6 | 303 | fi |
5bd17d39 | 304 | |
c470c17d | 305 | AC_SUBST(SECTION_LDFLAGS) |
421173e6 | 306 | AC_SUBST(OPT_LDFLAGS) |
c470c17d BK |
307 | ]) |
308 | ||
309 | ||
b2dad0e3 | 310 | dnl |
11fc1858 | 311 | dnl Check to see if the (math function) argument passed is |
38bd7296 BK |
312 | dnl 1) declared when using the c++ compiler |
313 | dnl 2) has "C" linkage | |
314 | dnl | |
315 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
316 | dnl | |
317 | dnl argument 1 is name of function to check | |
318 | dnl | |
319 | dnl ASSUMES argument is a math function with ONE parameter | |
320 | dnl | |
321 | dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1 | |
322 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, [ | |
38bd7296 | 323 | AC_MSG_CHECKING([for $1 declaration]) |
421173e6 PE |
324 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ |
325 | AC_LANG_SAVE | |
326 | AC_LANG_CPLUSPLUS | |
327 | AC_TRY_COMPILE([#include <math.h>], | |
328 | [ $1(0);], | |
329 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
330 | AC_LANG_RESTORE | |
331 | ]) | |
332 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) | |
333 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
38bd7296 BK |
334 | AC_CHECK_FUNCS($1) |
335 | fi | |
336 | ]) | |
337 | ||
338 | ||
339 | dnl | |
11fc1858 | 340 | dnl Check to see if the (math function) argument passed is |
38bd7296 BK |
341 | dnl 1) declared when using the c++ compiler |
342 | dnl 2) has "C" linkage | |
343 | dnl | |
344 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
345 | dnl | |
346 | dnl argument 1 is name of function to check | |
347 | dnl | |
348 | dnl ASSUMES argument is a math function with TWO parameters | |
349 | dnl | |
350 | dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2 | |
351 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2, [ | |
38bd7296 | 352 | AC_MSG_CHECKING([for $1 declaration]) |
421173e6 PE |
353 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ |
354 | AC_LANG_SAVE | |
355 | AC_LANG_CPLUSPLUS | |
356 | AC_TRY_COMPILE([#include <math.h>], | |
357 | [ $1(0, 0);], | |
358 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
359 | AC_LANG_RESTORE | |
360 | ]) | |
361 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) | |
362 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
38bd7296 BK |
363 | AC_CHECK_FUNCS($1) |
364 | fi | |
365 | ]) | |
366 | ||
367 | ||
368 | dnl | |
11fc1858 | 369 | dnl Check to see if the (math function) argument passed is |
38bd7296 BK |
370 | dnl 1) declared when using the c++ compiler |
371 | dnl 2) has "C" linkage | |
372 | dnl | |
373 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
374 | dnl | |
375 | dnl argument 1 is name of function to check | |
376 | dnl | |
377 | dnl ASSUMES argument is a math function with THREE parameters | |
378 | dnl | |
379 | dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3 | |
380 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3, [ | |
38bd7296 | 381 | AC_MSG_CHECKING([for $1 declaration]) |
421173e6 PE |
382 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ |
383 | AC_LANG_SAVE | |
384 | AC_LANG_CPLUSPLUS | |
385 | AC_TRY_COMPILE([#include <math.h>], | |
386 | [ $1(0, 0, 0);], | |
387 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
388 | AC_LANG_RESTORE | |
389 | ]) | |
390 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) | |
391 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
38bd7296 BK |
392 | AC_CHECK_FUNCS($1) |
393 | fi | |
394 | ]) | |
395 | ||
396 | ||
5bd17d39 PE |
397 | dnl |
398 | dnl Check to see if the (stdlib function) argument passed is | |
399 | dnl 1) declared when using the c++ compiler | |
400 | dnl 2) has "C" linkage | |
401 | dnl | |
402 | dnl Define HAVE_STRTOLD if "strtold" is declared and links | |
403 | dnl Define HAVE_STRTOF if "strtof" is declared and links | |
404 | dnl | |
405 | dnl argument 1 is name of function to check | |
406 | dnl | |
407 | dnl ASSUMES argument is a math function with TWO parameters | |
408 | dnl | |
409 | dnl GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2 | |
410 | AC_DEFUN(GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2, [ | |
411 | AC_MSG_CHECKING([for $1 declaration]) | |
412 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
413 | AC_LANG_SAVE | |
414 | AC_LANG_CPLUSPLUS | |
415 | AC_TRY_COMPILE([#include <stdlib.h>], | |
416 | [ $1(0, 0);], | |
417 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
418 | AC_LANG_RESTORE | |
419 | ]) | |
420 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) | |
421 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
422 | AC_CHECK_FUNCS($1) | |
423 | fi | |
424 | ]) | |
425 | ||
426 | ||
11fc1858 BK |
427 | dnl |
428 | dnl Because the builtins are picky picky picky about the arguments they take, | |
429 | dnl do an explict linkage tests here. | |
430 | dnl Check to see if the (math function) argument passed is | |
431 | dnl 1) declared when using the c++ compiler | |
432 | dnl 2) has "C" linkage | |
433 | dnl | |
434 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
435 | dnl | |
436 | dnl argument 1 is name of function to check | |
437 | dnl | |
438 | dnl ASSUMES argument is a math function with ONE parameter | |
439 | dnl | |
440 | dnl GLIBCPP_CHECK_BUILTIN_MATH_DECL_LINKAGE_1 | |
441 | AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1, [ | |
11fc1858 | 442 | AC_MSG_CHECKING([for $1 declaration]) |
421173e6 PE |
443 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ |
444 | AC_LANG_SAVE | |
445 | AC_LANG_CPLUSPLUS | |
446 | AC_TRY_COMPILE([#include <math.h>], | |
447 | [ $1(0);], | |
448 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
449 | AC_LANG_RESTORE | |
450 | ]) | |
451 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) | |
452 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
11fc1858 | 453 | AC_MSG_CHECKING([for $1 linkage]) |
421173e6 | 454 | AC_CACHE_VAL(glibcpp_cv_func_$1_link, [ |
11fc1858 | 455 | AC_TRY_LINK([#include <math.h>], |
421173e6 PE |
456 | [ $1(0);], |
457 | [glibcpp_cv_func_$1_link=yes], [glibcpp_cv_func_$1_link=no]) | |
458 | ]) | |
459 | AC_MSG_RESULT($glibcpp_cv_func_$1_link) | |
460 | if test x$glibcpp_cv_func_$1_link = x"yes"; then | |
11fc1858 BK |
461 | ac_tr_func=HAVE_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` |
462 | AC_DEFINE_UNQUOTED(${ac_tr_func}) | |
463 | fi | |
464 | fi | |
465 | ]) | |
466 | ||
467 | ||
468 | dnl | |
469 | dnl Check to see what builtin math functions are supported | |
470 | dnl | |
471 | dnl check for __builtin_abs | |
472 | dnl check for __builtin_fabsf | |
473 | dnl check for __builtin_fabs | |
474 | dnl check for __builtin_fabl | |
475 | dnl check for __builtin_labs | |
476 | dnl check for __builtin_sqrtf | |
477 | dnl check for __builtin_sqrtl | |
478 | dnl check for __builtin_fsqrt | |
479 | dnl check for __builtin_sinf | |
480 | dnl check for __builtin_sin | |
481 | dnl check for __builtin_sinl | |
482 | dnl check for __builtin_cosf | |
483 | dnl check for __builtin_cos | |
484 | dnl check for __builtin_cosl | |
485 | dnl | |
486 | dnl GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT | |
487 | AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT, [ | |
488 | dnl Test for builtin math functions. | |
489 | dnl These are made in gcc/c-common.c | |
490 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_abs) | |
491 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsf) | |
492 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabs) | |
493 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsl) | |
494 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_labs) | |
495 | ||
496 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtf) | |
497 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fsqrt) | |
498 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtl) | |
499 | ||
500 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinf) | |
501 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sin) | |
502 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinl) | |
503 | ||
504 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosf) | |
505 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cos) | |
506 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosl) | |
507 | ||
508 | dnl There is, without a doubt, a more elegant way to have these | |
509 | dnl names exported so that they won't be stripped out of acconfig.h by | |
510 | dnl autoheader. I leave this as an exercise to somebody less frustrated | |
511 | dnl than I.... please email the libstdc++ list if you can figure out a | |
512 | dnl more elegant approach (see autoconf/acgen.m4 and specifically | |
513 | dnl AC_CHECK_FUNC for things to steal.) | |
514 | dummyvar=no | |
515 | if test x$dummyvar = x"yes"; then | |
516 | AC_DEFINE(HAVE___BUILTIN_ABS) | |
517 | AC_DEFINE(HAVE___BUILTIN_LABS) | |
518 | AC_DEFINE(HAVE___BUILTIN_COS) | |
519 | AC_DEFINE(HAVE___BUILTIN_COSF) | |
520 | AC_DEFINE(HAVE___BUILTIN_COSL) | |
521 | AC_DEFINE(HAVE___BUILTIN_FABS) | |
522 | AC_DEFINE(HAVE___BUILTIN_FABSF) | |
523 | AC_DEFINE(HAVE___BUILTIN_FABSL) | |
524 | AC_DEFINE(HAVE___BUILTIN_SIN) | |
525 | AC_DEFINE(HAVE___BUILTIN_SINF) | |
526 | AC_DEFINE(HAVE___BUILTIN_SINL) | |
527 | AC_DEFINE(HAVE___BUILTIN_FSQRT) | |
528 | AC_DEFINE(HAVE___BUILTIN_SQRTF) | |
529 | AC_DEFINE(HAVE___BUILTIN_SQRTL) | |
530 | fi | |
531 | ]) | |
532 | ||
533 | ||
5bd17d39 PE |
534 | dnl |
535 | dnl Check to see what the underlying c library | |
536 | dnl These checks need to do two things: | |
537 | dnl 1) make sure the name is declared when using the c++ compiler | |
538 | dnl 2) make sure the name has "C" linkage | |
539 | dnl This might seem like overkill but experience has shown that it's not... | |
540 | dnl | |
541 | dnl Define HAVE_STRTOF etc if "strtof" is found. | |
542 | dnl Define HAVE_STRTOLD etc if "strtold" is found. | |
543 | dnl | |
544 | dnl GLIBCPP_CHECK_STDLIB_SUPPORT | |
545 | AC_DEFUN(GLIBCPP_CHECK_STDLIB_SUPPORT, [ | |
546 | ac_test_CXXFLAGS="${CXXFLAGS+set}" | |
547 | ac_save_CXXFLAGS="$CXXFLAGS" | |
548 | CXXFLAGS='-fno-builtins -D_GNU_SOURCE' | |
549 | ||
550 | AC_CHECK_FUNCS(strtof) | |
551 | GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtold) | |
552 | ||
553 | CXXFLAGS="$ac_save_CXXFLAGS" | |
554 | ]) | |
555 | ||
556 | ||
2f103494 BK |
557 | dnl |
558 | dnl Check to see what the underlying c library or math library is like. | |
38bd7296 BK |
559 | dnl These checks need to do two things: |
560 | dnl 1) make sure the name is declared when using the c++ compiler | |
561 | dnl 2) make sure the name has "C" linkage | |
562 | dnl This might seem like overkill but experience has shown that it's not... | |
2f103494 BK |
563 | dnl |
564 | dnl Define HAVE_CARGF etc if "cargf" is found. | |
565 | dnl | |
566 | dnl GLIBCPP_CHECK_MATH_SUPPORT | |
567 | AC_DEFUN(GLIBCPP_CHECK_MATH_SUPPORT, [ | |
38bd7296 BK |
568 | ac_test_CXXFLAGS="${CXXFLAGS+set}" |
569 | ac_save_CXXFLAGS="$CXXFLAGS" | |
4f76382d | 570 | CXXFLAGS='-fno-builtins -D_GNU_SOURCE' |
aac350aa BK |
571 | |
572 | dnl Check libm | |
2f103494 | 573 | AC_CHECK_LIB(m, sin, libm="-lm") |
38bd7296 | 574 | ac_save_LIBS="$LIBS" |
2f103494 BK |
575 | LIBS="$LIBS $libm" |
576 | ||
38bd7296 BK |
577 | dnl Check to see if certain C math functions exist. |
578 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinf) | |
579 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnan) | |
580 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finite) | |
581 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysign) | |
582 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincos) | |
583 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fpclass) | |
584 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(qfpclass) | |
585 | ||
586 | dnl Check to see if basic C math functions have float versions. | |
587 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanf) | |
588 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinff) | |
589 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(acosf) | |
590 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(asinf) | |
591 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(atanf) | |
592 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2f) | |
593 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(ceilf) | |
594 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(cosf) | |
595 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(coshf) | |
596 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expf) | |
597 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsf) | |
598 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(floorf) | |
599 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodf) | |
600 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpf) | |
601 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpf) | |
602 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logf) | |
603 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10f) | |
604 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modff) | |
605 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powf) | |
606 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sinf) | |
607 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sinhf) | |
608 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtf) | |
609 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(tanf) | |
610 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(tanhf) | |
611 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosf) | |
612 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitef) | |
613 | ||
614 | dnl Check to see if basic C math functions have long double versions. | |
615 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanl) | |
616 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinfl) | |
11fc1858 | 617 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysignl) |
38bd7296 BK |
618 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(acosl) |
619 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(asinl) | |
620 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(atanl) | |
621 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2l) | |
622 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(ceill) | |
623 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(cosl) | |
624 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(coshl) | |
625 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expl) | |
626 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsl) | |
627 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(floorl) | |
628 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodl) | |
629 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpl) | |
630 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpl) | |
631 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logl) | |
632 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10l) | |
633 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modfl) | |
634 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powl) | |
11fc1858 | 635 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sinl) |
38bd7296 BK |
636 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sinhl) |
637 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtl) | |
638 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(tanl) | |
639 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(tanhl) | |
640 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosl) | |
641 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitel) | |
642 | ||
643 | dnl Some runtimes have these functions with a preceding underscore. Please | |
644 | dnl keep this sync'd with the one above. And if you add any new symbol, | |
645 | dnl please add the corresponding block in the @BOTTOM@ section of acconfig.h. | |
646 | dnl Check to see if certain C math functions exist. | |
38bd7296 BK |
647 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_isinf) |
648 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_isnan) | |
649 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_finite) | |
650 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_copysign) | |
651 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(_sincos) | |
652 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_fpclass) | |
653 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_qfpclass) | |
654 | ||
655 | dnl Check to see if basic C math functions have float versions. | |
656 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_isnanf) | |
657 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_isinff) | |
658 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_acosf) | |
659 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_asinf) | |
660 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_atanf) | |
661 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_atan2f) | |
662 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_ceilf) | |
663 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_cosf) | |
664 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_coshf) | |
665 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_expf) | |
666 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_fabsf) | |
667 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_floorf) | |
668 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_fmodf) | |
669 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_frexpf) | |
670 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_ldexpf) | |
671 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_logf) | |
672 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_log10f) | |
673 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_modff) | |
674 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_powf) | |
675 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_sinf) | |
676 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_sinhf) | |
677 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_sqrtf) | |
678 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_tanf) | |
679 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_tanhf) | |
680 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(_sincosf) | |
681 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_finitef) | |
682 | ||
683 | dnl Check to see if basic C math functions have long double versions. | |
684 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_isnanl) | |
685 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_isinfl) | |
11fc1858 | 686 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_copysignl) |
38bd7296 BK |
687 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_acosl) |
688 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_asinl) | |
689 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_atanl) | |
690 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_atan2l) | |
691 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_ceill) | |
692 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_cosl) | |
693 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_coshl) | |
694 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_expl) | |
695 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_fabsl) | |
696 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_floorl) | |
697 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_fmodl) | |
698 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_frexpl) | |
699 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_ldexpl) | |
700 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_logl) | |
701 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_log10l) | |
702 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_modfl) | |
703 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(_powl) | |
11fc1858 | 704 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_sinl) |
38bd7296 BK |
705 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_sinhl) |
706 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_sqrtl) | |
707 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_tanl) | |
708 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_tanhl) | |
709 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(_sincosl) | |
710 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(_finitel) | |
711 | ||
712 | LIBS="$ac_save_LIBS" | |
713 | CXXFLAGS="$ac_save_CXXFLAGS" | |
2f103494 BK |
714 | ]) |
715 | ||
716 | ||
717 | dnl | |
718 | dnl Check to see if there is native support for complex | |
719 | dnl | |
720 | dnl Don't compile bits in math/* if native support exits. | |
721 | dnl | |
8b8ab21c | 722 | dnl Define USE_COMPLEX_LONG_DOUBLE etc if "atan2l/copysignl" is found. |
2f103494 BK |
723 | dnl |
724 | dnl GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT | |
725 | AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT, [ | |
726 | dnl Check for complex versions of math functions of platform. | |
727 | AC_CHECK_HEADERS([complex.h]) | |
b4b2a487 MM |
728 | AC_CHECK_LIB(m, main) |
729 | AC_REPLACE_MATHFUNCS(cabs cabsf ccos ccosf ccosh ccoshf cexp cexpf \ | |
730 | c_log c_logf clog10 clog10f cpow cpowf csin csinf csinh csinhf csqrt \ | |
731 | csqrtf ctan ctanf ctanh ctanhf carg cargf nan hypot hypotf atan2f expf \ | |
732 | copysignf) | |
11fc1858 BK |
733 | |
734 | dnl Compile the long double complex functions only if the function | |
735 | dnl provides the non-complex long double functions that are needed. | |
736 | dnl Currently this includes copysignl and atan2l, which should be | |
737 | dnl cached from the GLIBCPP_CHECK_MATH_SUPPORT macro, above. | |
738 | USE_COMPLEX_LONG_DOUBLE=no | |
739 | if test x$ac_cv_func_atan2l = x"yes" \ | |
740 | && test x$ac_cv_func_copysignl = x"yes"; then | |
741 | USE_COMPLEX_LONG_DOUBLE=yes | |
b4b2a487 | 742 | AC_REPLACE_MATHFUNCS(cabsl ccoshl ccosl cexpl cpowl csinhl csinl \ |
11fc1858 BK |
743 | csqrtl ctanhl ctanl cargl hypotl signbitl c_logl clog10l) |
744 | fi | |
745 | ||
2f103494 BK |
746 | AC_SUBST(USE_COMPLEX_LONG_DOUBLE) |
747 | ]) | |
748 | ||
54fa7415 | 749 | |
e974e9cc BK |
750 | dnl Check to see what architecture we are compiling for. Also, if |
751 | dnl architecture-specific flags are required for compilation, add them here. | |
b2dad0e3 | 752 | dnl |
b2dad0e3 BK |
753 | dnl GLIBCPP_CHECK_CPU |
754 | AC_DEFUN(GLIBCPP_CHECK_CPU, [ | |
e974e9cc BK |
755 | AC_MSG_CHECKING([for cpu config directory]) |
756 | # Currently unused, but could be useful. | |
8b8ab21c | 757 | # CPU_FLAGS= |
5780a46b | 758 | case "${target_cpu}" in |
b2dad0e3 | 759 | alpha*) |
8b8ab21c | 760 | cpu_include_dir="config/cpu/alpha" |
b2dad0e3 BK |
761 | ;; |
762 | arm*) | |
8b8ab21c | 763 | cpu_include_dir="config/cpu/arm" |
b2dad0e3 | 764 | ;; |
735bce7e | 765 | ia64) |
8b8ab21c BK |
766 | cpu_include_dir="config/cpu/ia64" |
767 | ;; | |
bf93f43b | 768 | i386) |
8b8ab21c BK |
769 | cpu_include_dir="config/cpu/i386" |
770 | ;; | |
bf93f43b | 771 | i486 | i586 | i686 | i786) |
8b8ab21c | 772 | cpu_include_dir="config/cpu/i486" |
b2dad0e3 BK |
773 | ;; |
774 | powerpc | rs6000) | |
8b8ab21c | 775 | cpu_include_dir="config/cpu/powerpc" |
b2dad0e3 BK |
776 | ;; |
777 | sparc64 | ultrasparc) | |
8b8ab21c | 778 | cpu_include_dir="config/cpu/sparc/sparc64" |
b2dad0e3 BK |
779 | ;; |
780 | sparc*) | |
8b8ab21c | 781 | cpu_include_dir="config/cpu/sparc/sparc32" |
b2dad0e3 BK |
782 | ;; |
783 | *) | |
8b8ab21c | 784 | cpu_include_dir="config/cpu/generic" |
b2dad0e3 BK |
785 | ;; |
786 | esac | |
787 | AC_MSG_RESULT($cpu_include_dir) | |
b2dad0e3 BK |
788 | ]) |
789 | ||
790 | ||
e974e9cc BK |
791 | dnl Check to see what OS we are compiling for. Also, if os-specific flags |
792 | dnl are required for compilation, add them here. | |
793 | dnl | |
794 | dnl GLIBCPP_CHECK_OS | |
795 | AC_DEFUN(GLIBCPP_CHECK_OS, [ | |
796 | AC_MSG_CHECKING([for os config directory]) | |
797 | # Currently unused, but could be useful. | |
798 | # OS_FLAGS= | |
799 | case "${target_os}" in | |
800 | aix*) | |
8b8ab21c | 801 | os_include_dir="config/os/aix" |
e974e9cc BK |
802 | ;; |
803 | bsd* | freebsd*) | |
8b8ab21c | 804 | os_include_dir="config/os/bsd" |
e974e9cc BK |
805 | ;; |
806 | linux*) | |
8b8ab21c BK |
807 | os_include_dir="config/os/gnu-linux" |
808 | ;; | |
e974e9cc | 809 | irix*) |
8b8ab21c BK |
810 | os_include_dir="config/os/irix" |
811 | ;; | |
e974e9cc | 812 | solaris2.5*) |
8b8ab21c | 813 | os_include_dir="config/os/solaris/solaris2.5" |
e974e9cc BK |
814 | ;; |
815 | solaris2.6*) | |
8b8ab21c | 816 | os_include_dir="config/os/solaris/solaris2.6" |
e974e9cc BK |
817 | ;; |
818 | solaris2.7* | solaris2.8*) | |
8b8ab21c | 819 | os_include_dir="config/os/solaris/solaris2.7" |
e974e9cc BK |
820 | ;; |
821 | *) | |
8b8ab21c | 822 | os_include_dir="config/os/generic" |
e974e9cc BK |
823 | ;; |
824 | esac | |
825 | AC_MSG_RESULT($os_include_dir) | |
5e53dba6 | 826 | AC_LINK_FILES($os_include_dir/bits/os_defines.h, include/bits/os_defines.h) |
e974e9cc BK |
827 | ]) |
828 | ||
829 | ||
b2dad0e3 BK |
830 | dnl |
831 | dnl Check to see what the underlying c library's interface to ctype looks | |
832 | dnl like. Bits of locale rely on things like isspace, toupper, etc. This | |
833 | dnl stuff makes sure the right bits from the clibrary get called. | |
834 | dnl | |
835 | dnl Depending on what is found, select various configure/*/bits/ctype_base.h | |
836 | dnl Depending on what is found, select various configure/*/ctype.cc | |
837 | dnl | |
5bd17d39 PE |
838 | dnl GLIBCPP_CHECK_CTYPE_SUPPORT |
839 | AC_DEFUN(GLIBCPP_CHECK_CTYPE_SUPPORT, [ | |
b2dad0e3 BK |
840 | AC_CHECK_HEADER(ctype.h, [ |
841 | ||
842 | dnl If doesn't match any specified, go with defaults. | |
843 | ctype_default=yes | |
844 | ||
9a200b0a PE |
845 | dnl Test for <ctype> functionality -- GNU/Linux |
846 | AC_MSG_CHECKING([<ctype> for GNU/Linux]) | |
b2dad0e3 BK |
847 | AC_TRY_COMPILE([#include <ctype.h>], |
848 | [int | |
849 | foo (int a) | |
850 | { return _ISspace + _ISprint + _IScntrl + _ISupper + _ISlower + _ISalpha \ | |
8b8ab21c BK |
851 | + _ISdigit + _ISpunct + _ISxdigit + _ISalnum + _ISgraph \ |
852 | + __ctype_tolower[a] + __ctype_toupper[a] + __ctype_b[a];}], \ | |
b2dad0e3 BK |
853 | ctype_linux=yes, ctype_linux=no) |
854 | AC_MSG_RESULT($ctype_linux) | |
855 | if test $ctype_linux = "yes"; then | |
e974e9cc | 856 | ctype_include_dir="config/os/gnu-linux" |
b2dad0e3 BK |
857 | ctype_default=no |
858 | fi | |
859 | ||
6ad50467 | 860 | dnl Test for <ctype> functionality -- FreeBSD 4.0 |
65dd21b7 | 861 | if test $ctype_default = "yes"; then |
9a200b0a | 862 | AC_MSG_CHECKING([<ctype> for FreeBSD 4.0]) |
7b267e3e BK |
863 | AC_TRY_COMPILE([#include <ctype.h>], |
864 | [int | |
865 | foo (int a) | |
866 | { return _CTYPE_S + _CTYPE_R + _CTYPE_C + _CTYPE_U + _CTYPE_L + _CTYPE_A \ | |
8b8ab21c | 867 | + _CTYPE_D + _CTYPE_P + _CTYPE_X + _CTYPE_G ;}], \ |
7b267e3e BK |
868 | ctype_bsd=yes, ctype_bsd=no) |
869 | AC_MSG_RESULT($ctype_bsd) | |
870 | if test $ctype_bsd = "yes"; then | |
e974e9cc | 871 | ctype_include_dir="config/os/bsd" |
7b267e3e BK |
872 | ctype_default=no |
873 | fi | |
65dd21b7 | 874 | fi |
7b267e3e | 875 | |
6ad50467 | 876 | dnl Test for <ctype> functionality -- FreeBSD 3.4 |
65dd21b7 | 877 | if test $ctype_default = "yes"; then |
9a200b0a | 878 | AC_MSG_CHECKING([<ctype> for FreeBSD 3.4]) |
6ad50467 BK |
879 | AC_TRY_COMPILE([#include <ctype.h>], |
880 | [int | |
881 | foo (int a) | |
882 | { return _S + _R + _C + _U + _L + _A \ | |
883 | + _D + _P + _X + _G + __istype (a, 0);}], \ | |
884 | ctype_freebsd34=yes, ctype_freebsd34=no) | |
885 | AC_MSG_RESULT($ctype_freebsd34) | |
886 | if test $ctype_freebsd34 = "yes"; then | |
e974e9cc | 887 | ctype_include_dir="config/os/bsd" |
6ad50467 BK |
888 | ctype_default=no |
889 | fi | |
65dd21b7 | 890 | fi |
6ad50467 | 891 | |
9a200b0a | 892 | dnl Test for <ctype> functionality -- Solaris 2.6 and up |
b2dad0e3 | 893 | if test $ctype_default = "yes"; then |
9a200b0a | 894 | AC_MSG_CHECKING([<ctype> for Solaris 2.6,7,8]) |
b2dad0e3 BK |
895 | AC_TRY_COMPILE([#include <ctype.h>], |
896 | [int | |
897 | foo (int a) | |
898 | { return _ISSPACE + _ISPRINT + _ISCNTRL + _ISUPPER + _ISLOWER + _ISALPHA \ | |
8b8ab21c BK |
899 | + _ISDIGIT + _ISPUNCT + _ISXDIGIT + _ISALNUM + _ISGRAPH \ |
900 | + __trans_lower[a] + __trans_upper[a] + __ctype_mask[a];}], \ | |
b2dad0e3 BK |
901 | ctype_solaris=yes, ctype_solaris=no) |
902 | AC_MSG_RESULT($ctype_solaris) | |
903 | ||
904 | if test $ctype_solaris = "yes"; then | |
905 | AC_MSG_CHECKING([ for version]) | |
906 | AC_LANG_CPLUSPLUS | |
907 | AC_TRY_COMPILE([#include <ctype.h>], | |
908 | [typedef long* __to_type; __to_type const& _M_toupper = __trans_upper;],\ | |
909 | ctype_solaris26=yes, ctype_solaris26=no) | |
910 | AC_LANG_C | |
911 | if test $ctype_solaris26 = "yes"; then | |
e974e9cc | 912 | ctype_include_dir="config/os/solaris/solaris2.6" |
9a200b0a | 913 | AC_MSG_RESULT([Solaris 2.6]) |
b2dad0e3 BK |
914 | ctype_default=no |
915 | else | |
e974e9cc | 916 | ctype_include_dir="config/os/solaris/solaris2.7" |
9a200b0a | 917 | AC_MSG_RESULT([Solaris 7,8]) |
b2dad0e3 BK |
918 | ctype_default=no |
919 | fi | |
920 | fi | |
921 | fi | |
922 | ||
9a200b0a | 923 | dnl Test for <ctype> functionality -- Solaris 2.5.1 |
b2dad0e3 | 924 | if test $ctype_default = "yes"; then |
9a200b0a | 925 | AC_MSG_CHECKING([<ctype> for Solaris 2.5.1]) |
b2dad0e3 BK |
926 | AC_TRY_COMPILE([#include <ctype.h>], |
927 | [int | |
928 | foo (int a) | |
929 | { return _U + _L + _N + _S + _P + _C + _X + _B \ | |
8b8ab21c | 930 | + __ctype[a];}], \ |
b2dad0e3 BK |
931 | ctype_solaris25=yes, ctype_solaris25=no) |
932 | AC_MSG_RESULT($ctype_solaris25) | |
933 | if test $ctype_solaris25 = "yes"; then | |
e974e9cc | 934 | ctype_include_dir="config/os/solaris/solaris2.5" |
b2dad0e3 BK |
935 | ctype_default=no |
936 | fi | |
937 | fi | |
938 | ||
9a200b0a | 939 | dnl Test for <ctype> functionality -- AIX |
b2dad0e3 | 940 | if test $ctype_default = "yes"; then |
9a200b0a | 941 | AC_MSG_CHECKING([<ctype> for AIX]) |
b2dad0e3 BK |
942 | AC_TRY_COMPILE([#include <ctype.h>], |
943 | [int | |
944 | foo (int a) | |
945 | { return _ISSPACE + _ISPRINT + _ISCNTRL + _ISUPPER + _ISLOWER + _ISALPHA \ | |
8b8ab21c BK |
946 | + _ISDIGIT + _ISPUNCT + _ISXDIGIT + _ISALNUM + _ISGRAPH \ |
947 | + _VALC('a') + _IS('c', 0);}], \ | |
b2dad0e3 BK |
948 | ctype_aix=yes, ctype_aix=no) |
949 | AC_MSG_RESULT($ctype_aix) | |
950 | if test $ctype_aix = "yes"; then | |
e974e9cc | 951 | ctype_include_dir="config/os/aix" |
b2dad0e3 BK |
952 | ctype_default=no |
953 | fi | |
954 | fi | |
955 | ||
dbf5ba31 | 956 | dnl Test for <ctype> functionality -- IRIX |
5a0b0c7a | 957 | if test $ctype_default ="yes"; then |
dbf5ba31 MM |
958 | AC_MSG_CHECKING([<ctype> for IRIX]) |
959 | AC_TRY_COMPILE([#include <ctype.h>], | |
960 | [int | |
961 | foo (int a) | |
962 | { return _U + _L + _N + _S + _P + _C + _B + _X + \ | |
963 | _A + _PR + _G + _BL;}], \ | |
964 | ctype_irix=yes, ctype_irix=no) | |
965 | AC_MSG_RESULT($ctype_irix) | |
966 | if test $ctype_irix = "yes"; then | |
967 | ctype_include_dir="config/os/irix" | |
968 | ctype_default=no | |
969 | fi | |
970 | fi | |
971 | ||
b2dad0e3 BK |
972 | dnl Test for <ctype> functionality -- newlib |
973 | if test $ctype_default = "yes"; then | |
9a200b0a | 974 | AC_MSG_CHECKING([<ctype> for newlib]) |
b2dad0e3 BK |
975 | AC_TRY_COMPILE([#include <ctype.h>], |
976 | [int | |
977 | foo (int a) | |
978 | { return _U + _L + _N + _S + _P + _C + _X + _B \ | |
8b8ab21c | 979 | + _ctype_[a];}], \ |
b2dad0e3 BK |
980 | ctype_newlib=yes, ctype_newlib=no) |
981 | AC_MSG_RESULT($ctype_newlib) | |
982 | if test $ctype_newlib = "yes"; then | |
983 | ctype_include_dir="config/newlib" | |
984 | ctype_default=no | |
985 | fi | |
986 | fi | |
987 | ||
988 | if test $ctype_default = "yes"; then | |
e974e9cc | 989 | ctype_include_dir="config/os/generic" |
b2dad0e3 BK |
990 | AC_MSG_WARN("Using default ctype headers.") |
991 | fi | |
e974e9cc | 992 | |
5e53dba6 BK |
993 | AC_LINK_FILES($ctype_include_dir/bits/ctype_base.h, |
994 | include/bits/ctype_base.h) | |
995 | AC_LINK_FILES($ctype_include_dir/bits/ctype_inline.h, | |
996 | include/bits/ctype_inline.h) | |
e974e9cc | 997 | AC_LINK_FILES($ctype_include_dir/bits/ctype_noninline.h, \ |
5e53dba6 | 998 | include/bits/ctype_noninline.h) |
b2dad0e3 BK |
999 | ]) |
1000 | ]) | |
1001 | ||
1002 | ||
b2dad0e3 BK |
1003 | dnl |
1004 | dnl Check to see if this target can enable the wchar_t parts of libstdc++. | |
8b8ab21c BK |
1005 | dnl If --disable-c-mbchar was given, no wchar_t stuff is enabled. (This |
1006 | dnl must have been previously checked.) | |
b2dad0e3 | 1007 | dnl |
15bcd79a BK |
1008 | dnl Define _GLIBCPP_USE_WCHAR_T if all the bits are found |
1009 | dnl Define _GLIBCPP_NEED_MBSTATE_T if mbstate_t is not in wchar.h | |
b2dad0e3 BK |
1010 | dnl |
1011 | dnl GLIBCPP_CHECK_WCHAR_T_SUPPORT | |
1012 | AC_DEFUN(GLIBCPP_CHECK_WCHAR_T_SUPPORT, [ | |
8b8ab21c BK |
1013 | if test x$enable_c_mbchar != xno; then |
1014 | ||
1015 | dnl Sanity check for existence of ISO C9X headers for extended encoding. | |
1016 | AC_CHECK_HEADER(wchar.h, ac_has_wchar_h=yes, ac_has_wchar_h=no) | |
1017 | AC_CHECK_HEADER(wctype.h, ac_has_wctype_h=yes, ac_has_wctype_h=no) | |
1018 | ||
1019 | dnl Only continue checking if the ISO C9X headers exist. | |
1020 | if test x"$ac_has_wchar_h" = xyes && test x"$ac_has_wctype_h" = xyes; then | |
15bcd79a | 1021 | |
8b8ab21c BK |
1022 | dnl Test wchar.h for mbstate_t, which is needed for char_traits |
1023 | dnl and others. | |
1024 | AC_MSG_CHECKING([for mbstate_t]) | |
1025 | AC_TRY_COMPILE([#include <wchar.h>], | |
1026 | [mbstate_t teststate;], | |
1027 | use_native_mbstatet=yes, use_native_mbstatet=no) | |
1028 | AC_MSG_RESULT($use_native_mbstatet) | |
1029 | if test x"$use_native_mbstatet" = xno; then | |
1030 | AC_DEFINE(_GLIBCPP_NEED_MBSTATE_T) | |
1031 | fi | |
1032 | ||
1033 | dnl Test wchar.h for WCHAR_MIN, WCHAR_MAX, which is needed before | |
1034 | dnl numeric_limits can instantiate type_traits<wchar_t> | |
1035 | AC_MSG_CHECKING([for WCHAR_MIN and WCHAR_MAX]) | |
1036 | AC_TRY_COMPILE([#include <wchar.h>], | |
1037 | [int i = WCHAR_MIN; int j = WCHAR_MAX;], | |
1038 | has_wchar_minmax=yes, has_wchar_minmax=no) | |
1039 | AC_MSG_RESULT($has_wchar_minmax) | |
1040 | ||
1041 | dnl Test wchar.h for WEOF, which is what we use to determine whether | |
1042 | dnl to specialize for char_traits<wchar_t> or not. | |
1043 | AC_MSG_CHECKING([for WEOF]) | |
1044 | AC_TRY_COMPILE([ | |
1045 | #include <wchar.h> | |
1046 | #include <stddef.h>], | |
1047 | [wint_t i = WEOF;], | |
1048 | has_weof=yes, has_weof=no) | |
1049 | AC_MSG_RESULT($has_weof) | |
1050 | ||
1051 | dnl Tests for wide character functions used in char_traits<wchar_t>. | |
1052 | AC_CHECK_FUNCS(wcslen wmemchr wmemcmp wmemcpy wmemmove wmemset \ | |
1053 | wcsrtombs mbsrtowcs, ac_wfuncs=yes, ac_wfuncs=no) | |
1054 | ||
1055 | AC_MSG_CHECKING([for ISO C9X wchar_t support]) | |
1056 | if test x"$has_weof" = xyes && test x"$has_wchar_minmax" = xyes \ | |
1057 | && test x"$ac_wfuncs" = xyes; then | |
1058 | ac_isoC9X_wchar_t=yes | |
1059 | else | |
1060 | ac_isoC9X_wchar_t=no | |
1061 | fi | |
1062 | AC_MSG_RESULT($ac_isoC9X_wchar_t) | |
1063 | ||
1064 | dnl Use iconv for wchar_t to char conversions. As such, check for | |
1065 | dnl X/Open Portability Guide, version 2 features (XPG2). | |
1066 | AC_CHECK_HEADER(iconv.h, ac_has_iconv_h=yes, ac_has_iconv_h=no) | |
1067 | AC_CHECK_HEADER(langinfo.h, ac_has_langinfo_h=yes, ac_has_langinfo_h=no) | |
1068 | AC_CHECK_FUNCS(iconv_open iconv_close iconv nl_langinfo, \ | |
1069 | ac_XPG2funcs=yes, ac_XPG2funcs=no) | |
1070 | ||
1071 | AC_MSG_CHECKING([for XPG2 wchar_t support]) | |
1072 | if test x"$ac_has_iconv_h" = xyes && test x"$ac_has_langinfo_h" = xyes \ | |
1073 | && test x"$ac_XPG2funcs" = xyes; then | |
1074 | ac_XPG2_wchar_t=yes | |
1075 | else | |
1076 | ac_XPG2_wchar_t=no | |
1077 | fi | |
1078 | AC_MSG_RESULT($ac_XPG2_wchar_t) | |
1079 | ||
1080 | dnl At the moment, only enable wchar_t specializations if all the | |
1081 | dnl above support is present. | |
1082 | AC_MSG_CHECKING([for enabled wchar_t specializations]) | |
1083 | if test x"$ac_isoC9X_wchar_t" = xyes \ | |
1084 | && test x"$ac_XPG2_wchar_t" = xyes; then | |
1085 | libinst_wstring_la="libinst-wstring.la" | |
1086 | AC_DEFINE(_GLIBCPP_USE_WCHAR_T) | |
1087 | AC_MSG_RESULT("yes") | |
1088 | else | |
1089 | libinst_wstring_la="" | |
1090 | AC_MSG_RESULT("no") | |
1091 | fi | |
1092 | AC_SUBST(libinst_wstring_la) | |
15bcd79a | 1093 | |
15bcd79a | 1094 | else |
8b8ab21c BK |
1095 | AC_MSG_WARN([<wchar.h> not found]) |
1096 | AC_DEFINE(_GLIBCPP_NEED_MBSTATE_T) | |
15bcd79a | 1097 | fi |
3840fa2a | 1098 | |
15bcd79a | 1099 | else |
8b8ab21c BK |
1100 | dnl Wide characters disabled by the user. Maybe print a warning? |
1101 | : | |
b2dad0e3 | 1102 | fi |
b2dad0e3 BK |
1103 | ]) |
1104 | ||
1105 | ||
1106 | dnl | |
1107 | dnl Check to see if this version of GNU C++ is afflicted by bugs in | |
1108 | dnl __complex__ float support. | |
1109 | dnl | |
1110 | dnl Define _GLIBCPP_BUGGY_FLOAT_COMPLEX if buggy. | |
1111 | dnl | |
2f103494 BK |
1112 | dnl Check to see if this version of GNU C++ is afflicted by bugs in |
1113 | dnl __complex__ support.Check for buggy __complex__ that will cause ICE in | |
1114 | dnl gcc-2.95.x when using the library, unless we define the default copy | |
1115 | dnl ctor in the specializations of complex<>. | |
1116 | dnl | |
1117 | dnl Define _GLIBCPP_BUGGY_COMPLEX if buggy. | |
1118 | dnl GLIBCPP_CHECK_COMPLEX_MATH_COMPILER_SUPPORT | |
1119 | AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_COMPILER_SUPPORT, [ | |
b2dad0e3 | 1120 | AC_REQUIRE([AC_PROG_CXX]) |
2f103494 BK |
1121 | |
1122 | AC_MSG_CHECKING([for GNU C++ __complex__ support]) | |
1123 | AC_CACHE_VAL(glibcpp_cv_complex, [ | |
1124 | AC_LANG_SAVE | |
1125 | AC_LANG_CPLUSPLUS | |
1126 | AC_TRY_COMPILE([struct dcomplex { __complex__ double x; }; \ | |
8b8ab21c BK |
1127 | dcomplex f(const dcomplex& x) { return dcomplex(x); }], \ |
1128 | [ dcomplex x; f(x); ], | |
2f103494 BK |
1129 | glibcpp_cv_complex=ok, |
1130 | glibcpp_cv_complex=buggy | |
1131 | ) | |
1132 | AC_LANG_RESTORE | |
1133 | ]) | |
1134 | AC_MSG_RESULT($glibcpp_cv_complex) | |
1135 | if test $glibcpp_cv_complex = buggy; then | |
1136 | AC_DEFINE(_GLIBCPP_BUGGY_COMPLEX) | |
1137 | fi | |
1138 | ||
b2dad0e3 BK |
1139 | AC_MSG_CHECKING([for GNU C++ __complex__ float support]) |
1140 | AC_CACHE_VAL(glibcpp_cv_float_complex, [ | |
1141 | AC_LANG_SAVE | |
1142 | AC_LANG_CPLUSPLUS | |
1143 | rm -f conftest.h | |
1144 | cat > conftest.h <<EOB | |
1145 | // | |
1146 | // Check for buggy __complex__ that causes ICE in most versions of egcs | |
1147 | // and gcc-2.95.x on certain platforms (eg., x86-win32). | |
1148 | // | |
747dcaf1 | 1149 | // See http://gcc.gnu.org/ml/gcc-bugs/1999-07n/msg00845.html for |
b2dad0e3 BK |
1150 | // more info on the bug itself. |
1151 | // | |
1152 | struct | |
1153 | float_complex | |
1154 | { | |
1155 | __complex__ float m_value; | |
1156 | float_complex (float = 0.0f, float = 0.0f); | |
1157 | float_complex (__complex__ float val) : m_value (val) {} | |
1158 | float_complex foo (const float_complex &val) | |
1159 | { return float_complex (~val.m_value); } | |
1160 | }; | |
1161 | EOB | |
1162 | AC_TRY_COMPILE([#include "conftest.h"], , | |
1163 | glibcpp_cv_float_complex=ok, | |
1164 | glibcpp_cv_float_complex=buggy | |
1165 | ) | |
1166 | AC_LANG_RESTORE | |
1167 | ]) | |
1168 | AC_MSG_RESULT($glibcpp_cv_float_complex) | |
1169 | if test $glibcpp_cv_float_complex = buggy; then | |
1170 | AC_DEFINE(_GLIBCPP_BUGGY_FLOAT_COMPLEX) | |
1171 | fi | |
1172 | ]) | |
1173 | ||
1174 | ||
b2dad0e3 | 1175 | dnl |
8bd636c5 | 1176 | dnl Check for special debugging mode; not for production use. |
b2dad0e3 BK |
1177 | dnl |
1178 | dnl GLIBCPP_ENABLE_DEBUG | |
34791641 | 1179 | dnl --enable-debug sets '-ggdb3 -O0'. |
b2dad0e3 BK |
1180 | dnl --disable-debug sets '-g' and whatever optimization options the |
1181 | dnl compiler can handle. | |
7f586614 | 1182 | dnl + --enable-maintainer-mode automatically defaults this to on. |
b2dad0e3 BK |
1183 | dnl + Perhaps -D/-U of NDEBUG, DEBUG, DEBUG_ASSERT, ...? |
1184 | dnl + Usage: GLIBCPP_ENABLE_DEBUG[(DEFAULT)] | |
1185 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
1186 | dnl defaults to `no'. | |
1187 | AC_DEFUN(GLIBCPP_ENABLE_DEBUG, [dnl | |
1188 | define([GLIBCPP_ENABLE_DEBUG_DEFAULT], ifelse($1, yes, yes, no))dnl | |
1189 | AC_ARG_ENABLE(debug, | |
1190 | changequote(<<, >>)dnl | |
1191 | << --enable-debug extra debugging, turn off optimization [default=>>GLIBCPP_ENABLE_DEBUG_DEFAULT], | |
1192 | changequote([, ])dnl | |
5780a46b | 1193 | [case "${enableval}" in |
b2dad0e3 BK |
1194 | yes) enable_debug=yes ;; |
1195 | no) enable_debug=no ;; | |
1196 | *) AC_MSG_ERROR([Unknown argument to enable/disable extra debugging]) ;; | |
1197 | esac], | |
1198 | enable_debug=GLIBCPP_ENABLE_DEBUG_DEFAULT)dnl | |
5780a46b | 1199 | |
b2dad0e3 | 1200 | dnl Option parsed, now set things appropriately |
5780a46b | 1201 | case "${enable_debug}" in |
cde28f0d | 1202 | yes) |
34791641 | 1203 | DEBUG_FLAGS='-O0 -ggdb3' |
8b8ab21c | 1204 | ;; |
f3b004d8 | 1205 | no) |
8b8ab21c | 1206 | DEBUG_FLAGS='-g' |
f3b004d8 | 1207 | ;; |
b2dad0e3 | 1208 | esac |
c470c17d | 1209 | AC_SUBST(DEBUG_FLAGS) |
b2dad0e3 BK |
1210 | ]) |
1211 | ||
1212 | ||
dcfa0bc8 PE |
1213 | dnl |
1214 | dnl Check for "unusual" flags to pass to the compiler while building. | |
1215 | dnl | |
1216 | dnl GLIBCPP_ENABLE_CXX_FLAGS | |
1217 | dnl --enable-cxx-flags='-foo -bar -baz' is a general method for passing | |
1218 | dnl experimental flags such as -fhonor-std, -fsquangle, -Dfloat=char, etc. | |
1219 | dnl Somehow this same set of flags must be passed when [re]building | |
1220 | dnl libgcc. | |
1221 | dnl --disable-cxx-flags passes nothing. | |
32a4595e PE |
1222 | dnl + See http://sourceware.cygnus.com/ml/libstdc++/2000-q2/msg00131.html |
1223 | dnl http://sourceware.cygnus.com/ml/libstdc++/2000-q2/msg00284.html | |
1224 | dnl http://sourceware.cygnus.com/ml/libstdc++/2000-q1/msg00035.html | |
dcfa0bc8 | 1225 | dnl + Usage: GLIBCPP_ENABLE_CXX_FLAGS(default flags) |
32a4595e PE |
1226 | dnl If "default flags" is an empty string (or "none"), the effect is |
1227 | dnl the same as --disable or --enable=no. | |
dcfa0bc8 PE |
1228 | AC_DEFUN(GLIBCPP_ENABLE_CXX_FLAGS, [dnl |
1229 | define([GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], ifelse($1,,, $1))dnl | |
1230 | AC_ARG_ENABLE(cxx-flags, | |
1231 | changequote(<<, >>)dnl | |
1232 | << --enable-cxx-flags=FLAGS pass compiler FLAGS when building library; | |
1233 | [default=>>GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], | |
1234 | changequote([, ])dnl | |
1235 | [case "x$enableval" in | |
5780a46b | 1236 | xyes) |
8b8ab21c | 1237 | AC_MSG_ERROR([--enable-cxx-flags needs compiler flags as arguments]) ;; |
5780a46b | 1238 | xno|x) |
8b8ab21c | 1239 | enable_cxx_flags='' ;; |
5780a46b | 1240 | *) |
8b8ab21c | 1241 | enable_cxx_flags="$enableval" ;; |
dcfa0bc8 | 1242 | esac], |
5780a46b BK |
1243 | enable_cxx_flags='GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT') |
1244 | ||
32a4595e | 1245 | dnl Thinko on my part during design. This kludge is the workaround. |
5780a46b BK |
1246 | if test "$enable_cxx_flags" = "none"; then |
1247 | enable_cxx_flags=''; | |
1248 | fi | |
1249 | ||
32a4595e PE |
1250 | dnl Run through flags (either default or command-line) and set anything |
1251 | dnl extra (e.g., #defines) that must accompany particular g++ options. | |
dcfa0bc8 PE |
1252 | if test -n "$enable_cxx_flags"; then |
1253 | for f in $enable_cxx_flags; do | |
1254 | case "$f" in | |
991a40fc | 1255 | -fhonor-std) ;; |
dcfa0bc8 PE |
1256 | -*) ;; |
1257 | *) # and we're trying to pass /what/ exactly? | |
1258 | AC_MSG_ERROR([compiler flags start with a -]) ;; | |
1259 | esac | |
1260 | done | |
1261 | fi | |
1262 | EXTRA_CXX_FLAGS="$enable_cxx_flags" | |
1263 | AC_SUBST(EXTRA_CXX_FLAGS) | |
1264 | ]) | |
1265 | ||
1266 | ||
b2dad0e3 | 1267 | dnl |
8bd636c5 | 1268 | dnl Check for which I/O library to use: libio, or something specific. |
b2dad0e3 BK |
1269 | dnl |
1270 | dnl GLIBCPP_ENABLE_CSTDIO | |
1271 | dnl --enable-cstdio=libio sets config/c_io_libio.h and friends | |
1272 | dnl | |
1273 | dnl default is libio | |
1274 | dnl | |
1275 | AC_DEFUN(GLIBCPP_ENABLE_CSTDIO, [ | |
1276 | AC_MSG_CHECKING([for cstdio to use]) | |
1277 | AC_ARG_ENABLE(cstdio, | |
1fd2f510 BK |
1278 | [ --enable-cstdio enable GNU libio for target io package. (default) |
1279 | --enable-cstdio=LIB use LIB target-speific io package.], | |
b2dad0e3 | 1280 | if test x$enable_cstdio = xno; then |
8b8ab21c | 1281 | enable_cstdio=libio |
b2dad0e3 | 1282 | fi, |
15bcd79a | 1283 | enable_cstdio=libio) |
b2dad0e3 BK |
1284 | |
1285 | enable_cstdio_flag=$enable_cstdio | |
1286 | ||
8b8ab21c | 1287 | dnl Check if a valid I/O package |
b2dad0e3 | 1288 | case x${enable_cstdio_flag} in |
dd75251f BK |
1289 | xlibio | x | xno | xnone | xyes) |
1290 | # default | |
1291 | CSTDIO_H=config/c_io_libio.h | |
1292 | CSTDIO_CC=config/c_io_libio.cc | |
1293 | AC_MSG_RESULT(libio) | |
1294 | ||
1295 | # see if we are on a system with libio native (ie, linux) | |
1296 | AC_CHECK_HEADER(libio.h, has_libio=yes, has_libio=no) | |
1297 | ||
1298 | # Need to check and see what version of glibc is being used. If | |
1299 | # it's not glibc-2.2 or higher, then we'll need to go ahead and | |
1300 | # compile most of libio for linux systems. | |
1301 | if test x$has_libio = x"yes"; then | |
1302 | case "$target" in | |
1303 | *-*-linux*) | |
8b8ab21c BK |
1304 | AC_MSG_CHECKING([for glibc version >= 2.2]) |
1305 | AC_EGREP_CPP([ok], [ | |
1306 | #include <features.h> | |
1307 | #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2) | |
1308 | ok | |
1309 | #endif | |
1310 | ], glibc_satisfactory=yes, glibc_satisfactory=no) | |
1311 | AC_MSG_RESULT($glibc_satisfactory) | |
1312 | ;; | |
dd75251f BK |
1313 | esac |
1314 | ||
8b8ab21c | 1315 | # XXX at the moment, admit defeat and force the recompilation |
f133a43e | 1316 | # XXX of glibc even on glibc-2.2 systems, because libio is not synched. |
8b8ab21c BK |
1317 | glibc_satisfactory=no |
1318 | ||
1319 | if test x$glibc_satisfactory = x"yes"; then | |
1320 | need_libio=no | |
8b8ab21c BK |
1321 | need_wlibio=no |
1322 | else | |
1323 | need_libio=yes | |
8b8ab21c BK |
1324 | # bkoz XXX need to add checks to enable this |
1325 | # pme XXX here's a first pass at such a check | |
1326 | if test x$enable_c_mbchar != xno; then | |
1327 | need_wlibio=yes | |
1328 | else | |
1329 | need_wlibio=no | |
1330 | fi | |
1331 | fi | |
dd75251f | 1332 | |
dd75251f | 1333 | else |
5bd17d39 | 1334 | # Using libio, but <libio.h> doesn't exist on the target system. . . |
8b8ab21c | 1335 | need_libio=yes |
8b8ab21c BK |
1336 | # bkoz XXX need to add checks to enable this |
1337 | # pme XXX here's a first pass at such a check | |
1338 | if test x$enable_c_mbchar != xno; then | |
1339 | need_wlibio=yes | |
1340 | else | |
1341 | need_wlibio=no | |
1342 | fi | |
dd75251f BK |
1343 | fi |
1344 | ;; | |
9717c75c BK |
1345 | xstdio) |
1346 | CSTDIO_H=config/c_io_stdio.h | |
1347 | CSTDIO_CC=config/c_io_stdio.cc | |
1348 | AC_MSG_RESULT(stdio) | |
dd75251f BK |
1349 | |
1350 | need_libio=no | |
dd75251f BK |
1351 | ;; |
1352 | *) | |
1353 | echo "$enable_cstdio is an unknown io package" 1>&2 | |
1354 | exit 1 | |
1355 | ;; | |
b2dad0e3 | 1356 | esac |
5e53dba6 | 1357 | AC_LINK_FILES($CSTDIO_H, include/bits/c++io.h) |
c4561450 | 1358 | AC_LINK_FILES($CSTDIO_CC, src/c++io.cc) |
8901ac21 BK |
1359 | |
1360 | # 2000-08-04 bkoz hack | |
1361 | CCODECVT_C=config/c_io_libio_codecvt.c | |
1362 | AC_LINK_FILES($CCODECVT_C, libio/c_codecvt.c) | |
1363 | # 2000-08-04 bkoz hack | |
8b8ab21c | 1364 | |
b2dad0e3 | 1365 | AM_CONDITIONAL(GLIBCPP_NEED_LIBIO, test "$need_libio" = yes) |
20427c6b | 1366 | AM_CONDITIONAL(GLIBCPP_NEED_WLIBIO, test "$need_wlibio" = yes) |
b2dad0e3 BK |
1367 | ]) |
1368 | ||
1369 | ||
1370 | dnl | |
8bd636c5 | 1371 | dnl Check for which threading library to use. |
b2dad0e3 BK |
1372 | dnl |
1373 | dnl GLIBCPP_ENABLE_THREADS | |
1374 | dnl --enable-threads=posix sets config/threads-posix.h et. al. | |
1375 | dnl | |
8b8ab21c BK |
1376 | dnl Default is no threads, which also disables _IO_MTSAFE_IO in |
1377 | dnl libio. Any actual thread package will enable it. | |
b2dad0e3 BK |
1378 | dnl |
1379 | AC_DEFUN(GLIBCPP_ENABLE_THREADS, [ | |
1380 | dnl Note this comes from the gcc/config.in and libjava/config.in | |
1381 | dnl Efforts should be made to keep this in sync. | |
1382 | AC_MSG_CHECKING([for threads package to use]) | |
1383 | AC_ARG_ENABLE(threads, | |
1384 | [ --enable-threads enable thread usage for target GCC. | |
1fd2f510 | 1385 | --enable-threads=LIB use LIB thread package for target GCC.], |
b2dad0e3 BK |
1386 | if test x$enable_threads = xno; then |
1387 | enable_threads='' | |
1388 | fi, | |
1389 | enable_threads='') | |
1390 | ||
1391 | enable_threads_flag=$enable_threads | |
1392 | ||
1393 | dnl Check if a valid thread package | |
1394 | case x${enable_threads_flag} in | |
8b8ab21c BK |
1395 | x | xno | xnone) |
1396 | # No threads | |
1397 | target_thread_file='single' | |
1398 | ;; | |
1399 | xyes) | |
1400 | # default | |
1401 | target_thread_file='' | |
1402 | ;; | |
1403 | xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \ | |
1404 | xsolaris | xwin32 | xdce | xvxworks) | |
1405 | target_thread_file=$enable_threads_flag | |
1406 | ;; | |
1407 | *) | |
1408 | echo "$enable_threads is an unknown thread package" 1>&2 | |
1409 | exit 1 | |
1410 | ;; | |
b2dad0e3 BK |
1411 | esac |
1412 | ||
1413 | dnl Check for thread package actually supported in libstdc++ | |
e974e9cc | 1414 | THREADH= |
b2dad0e3 BK |
1415 | case "$target_thread_file" in |
1416 | no | none | single) | |
e974e9cc | 1417 | THREADH=threads-no.h |
b2dad0e3 BK |
1418 | ;; |
1419 | posix | pthreads) | |
e974e9cc | 1420 | THREADH=threads-posix.h |
b2dad0e3 BK |
1421 | ;; |
1422 | decosf1 | irix | mach | os2 | solaris | win32 | dce | vxworks) | |
1423 | AC_MSG_ERROR(thread package $THREADS not yet supported) | |
1424 | ;; | |
1425 | *) | |
1426 | AC_MSG_ERROR($THREADS is an unknown thread package) | |
1427 | ;; | |
1428 | esac | |
e974e9cc | 1429 | AC_MSG_RESULT($THREADH) |
b2dad0e3 | 1430 | |
5e53dba6 | 1431 | AC_LINK_FILES(config/$THREADH, include/bits/c++threads.h) |
8b8ab21c BK |
1432 | if test $THREADH != threads-no.h; then |
1433 | AC_DEFINE(_GLIBCPP_USE_THREADS) | |
1434 | fi | |
b2dad0e3 BK |
1435 | ]) |
1436 | ||
1437 | ||
e974e9cc BK |
1438 | dnl Enable atomic locking |
1439 | dnl GLIBCPP_ENABLE_ATOMICITY | |
1440 | AC_DEFUN(GLIBCPP_ENABLE_ATOMICITY, [ | |
1441 | AC_MSG_CHECKING([for atomicity.h]) | |
1442 | case "$target" in | |
8b8ab21c BK |
1443 | *-*-linux* | sparc*-*-*) |
1444 | ATOMICITYH=$cpu_include_dir | |
1445 | ;; | |
e974e9cc BK |
1446 | *-*-aix*) |
1447 | ATOMICITYH=$os_include_dir | |
8b8ab21c | 1448 | ;; |
9ece5af6 MM |
1449 | *-*-irix*) |
1450 | ATOMICITYH=$os_include_dir | |
1451 | ;; | |
e974e9cc | 1452 | *) |
8b8ab21c BK |
1453 | # bit of overkill on this text... |
1454 | AC_MSG_ERROR([Atomic locking requested, but $enable_threads is an unknown thread package and atomic operations are not present in the CPU]) | |
1455 | ;; | |
e974e9cc BK |
1456 | esac |
1457 | AC_MSG_RESULT($ATOMICITYH/bits/atomicity.h) | |
5e53dba6 | 1458 | AC_LINK_FILES($ATOMICITYH/bits/atomicity.h, include/bits/atomicity.h) |
e974e9cc BK |
1459 | ]) |
1460 | ||
1461 | ||
b2dad0e3 | 1462 | dnl |
8bd636c5 | 1463 | dnl Check for template specializations for the 'long long' type extension. |
b2dad0e3 BK |
1464 | dnl |
1465 | dnl GLIBCPP_ENABLE_LONG_LONG | |
1466 | dnl --enable-long-long defines _GLIBCPP_USE_LONG_LONG | |
1467 | dnl --disable-long-long leaves _GLIBCPP_USE_LONG_LONG undefined | |
1468 | dnl + Usage: GLIBCPP_ENABLE_LONG_LONG[(DEFAULT)] | |
1469 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
1470 | dnl defaults to `no'. | |
0137be2d | 1471 | dnl + If 'long long' stuff is not available, ignores DEFAULT and sets `no'. |
b2dad0e3 BK |
1472 | dnl |
1473 | dnl GLIBCPP_ENABLE_LONG_LONG | |
1474 | AC_DEFUN(GLIBCPP_ENABLE_LONG_LONG, [dnl | |
1475 | define([GLIBCPP_ENABLE_LONG_LONG_DEFAULT], ifelse($1, yes, yes, no))dnl | |
30ff6342 | 1476 | |
b2dad0e3 BK |
1477 | AC_ARG_ENABLE(long-long, |
1478 | changequote(<<, >>)dnl | |
d0d88ce3 | 1479 | <<--enable-long-long turns on 'long long' [default=>>GLIBCPP_ENABLE_LONG_LONG_DEFAULT], |
b2dad0e3 BK |
1480 | changequote([, ])dnl |
1481 | [case "$enableval" in | |
1482 | yes) enable_long_long=yes ;; | |
1483 | no) enable_long_long=no ;; | |
1484 | *) AC_MSG_ERROR([Unknown argument to enable/disable long long]) ;; | |
1485 | esac], | |
1486 | enable_long_long=GLIBCPP_ENABLE_LONG_LONG_DEFAULT)dnl | |
30ff6342 BK |
1487 | |
1488 | # Check for the existance of functions used if long long is enabled. | |
1489 | AC_CHECK_FUNC(strtoll,,ac_strtoll=no) | |
1490 | AC_CHECK_FUNC(strtoull,,ac_strtoull=no) | |
1491 | ||
3840fa2a | 1492 | AC_MSG_CHECKING([for enabled long long]) |
30ff6342 | 1493 | if test x"$ac_strtoll" = xno || test x"$ac_strtoull" = xno; then |
3840fa2a BK |
1494 | enable_long_long=no; |
1495 | fi; | |
d0d88ce3 | 1496 | AC_MSG_RESULT($enable_long_long) |
3840fa2a | 1497 | |
b2dad0e3 | 1498 | dnl Option parsed, now set things appropriately |
dcc41852 BK |
1499 | if test x"$enable_long_long" = xyes; then |
1500 | AC_DEFINE(_GLIBCPP_USE_LONG_LONG) | |
1501 | fi | |
b2dad0e3 BK |
1502 | ]) |
1503 | ||
1504 | ||
99246c90 | 1505 | dnl |
8bd636c5 | 1506 | dnl Check for whether or not to do shadowed C headers. |
99246c90 PE |
1507 | dnl |
1508 | dnl GLIBCPP_ENABLE_SHADOW | |
d0d88ce3 BK |
1509 | dnl --enable-cshadow-headers [does stuff]. |
1510 | dnl --disable-cshadow-headers [does not do stuff]. | |
99246c90 PE |
1511 | dnl + This will eventually need to be on by default. |
1512 | dnl + Usage: GLIBCPP_ENABLE_SHADOW[(DEFAULT)] | |
1513 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
1514 | dnl defaults to `no'. | |
1515 | AC_DEFUN(GLIBCPP_ENABLE_SHADOW, [dnl | |
1516 | define([GLIBCPP_ENABLE_SHADOW_DEFAULT], ifelse($1, yes, yes, no))dnl | |
d0d88ce3 BK |
1517 | AC_MSG_CHECKING([for enabled cshadow headers]) |
1518 | AC_ARG_ENABLE(cshadow-headers, | |
99246c90 | 1519 | changequote(<<, >>)dnl |
d0d88ce3 BK |
1520 | << --enable-cshadow-headers construct "shadowed" C header files for |
1521 | g++ [default=>>GLIBCPP_ENABLE_SHADOW_DEFAULT], | |
5780a46b BK |
1522 | changequote([, ]) |
1523 | [case "$enableval" in | |
1524 | yes) enable_cshadow_headers=yes | |
8b8ab21c | 1525 | ;; |
5780a46b | 1526 | no) enable_cshadow_headers=no |
8b8ab21c | 1527 | ;; |
5780a46b | 1528 | *) AC_MSG_ERROR([Unknown argument to enable/disable shadowed C headers]) |
8b8ab21c | 1529 | ;; |
5780a46b BK |
1530 | esac], |
1531 | enable_cshadow_headers=GLIBCPP_ENABLE_SHADOW_DEFAULT) | |
1532 | AC_MSG_RESULT($enable_cshadow_headers) | |
1533 | ||
1534 | dnl Option parsed, now set things appropriately | |
0517cb99 | 1535 | dnl NB: these things may be duplicated in c++config.h as well. |
5780a46b | 1536 | case "$enable_cshadow_headers" in |
99246c90 | 1537 | yes) |
8b8ab21c BK |
1538 | CSHADOW_FLAGS="-fno-builtin" |
1539 | C_INCLUDE_DIR='${top_srcdir}/include/c_std' | |
0517cb99 | 1540 | AC_DEFINE(_GLIBCPP_USE_SHADOW_HEADERS) |
8b8ab21c | 1541 | ;; |
99246c90 | 1542 | no) |
8b8ab21c BK |
1543 | CSHADOW_FLAGS="" |
1544 | C_INCLUDE_DIR='${top_srcdir}/include/c' | |
99246c90 | 1545 | ;; |
5780a46b | 1546 | esac |
5b80666b | 1547 | |
e466dc8a BK |
1548 | AC_SUBST(CSHADOW_FLAGS) |
1549 | AC_SUBST(C_INCLUDE_DIR) | |
5780a46b | 1550 | AM_CONDITIONAL(GLIBCPP_USE_CSHADOW, test "$enable_cshadow_headers" = yes) |
99246c90 | 1551 | ]) |
b2dad0e3 | 1552 | |
8b8ab21c BK |
1553 | |
1554 | dnl | |
1555 | dnl Check for wide character support. Has the same effect as the option | |
1556 | dnl in gcc's configure, but in a form that autoconf can mess with. | |
1557 | dnl | |
1558 | dnl GLIBCPP_ENABLE_C_MBCHAR | |
1559 | dnl --enable-c-mbchar requests all the wchar_t stuff. | |
1560 | dnl --disable-c-mbchar doesn't. | |
1561 | dnl + Usage: GLIBCPP_ENABLE_C_MBCHAR[(DEFAULT)] | |
1562 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
1563 | dnl defaults to `no'. | |
1564 | AC_DEFUN(GLIBCPP_ENABLE_C_MBCHAR, [dnl | |
1565 | define([GLIBCPP_ENABLE_C_MBCHAR_DEFAULT], ifelse($1, yes, yes, no))dnl | |
1566 | AC_ARG_ENABLE(c-mbchar, | |
1567 | changequote(<<, >>)dnl | |
1568 | << --enable-c-mbchar enable multibyte (wide) characters [default=>>GLIBCPP_ENABLE_C_MBCHAR_DEFAULT], | |
1569 | changequote([, ])dnl | |
1570 | [case "$enableval" in | |
1571 | yes) enable_c_mbchar=yes ;; | |
1572 | no) enable_c_mbchar=no ;; | |
1573 | *) AC_MSG_ERROR([Unknown argument to enable/disable c-mbchar]) ;; | |
1574 | esac], | |
1575 | enable_c_mbchar=GLIBCPP_ENABLE_C_MBCHAR_DEFAULT)dnl | |
1576 | dnl Option parsed, now other scripts can test enable_c_mbchar for yes/no. | |
1577 | ]) | |
1578 | ||
1579 | ||
e466dc8a BK |
1580 | dnl |
1581 | dnl Set up *_INCLUDES and *_INCLUDE_DIR variables for all sundry Makefile.am's. | |
1582 | dnl | |
1583 | dnl GLIBCPP_INCLUDE_DIR | |
1584 | dnl C_INCLUDE_DIR | |
1585 | dnl TOPLEVEL_INCLUDES | |
1586 | dnl LIBMATH_INCLUDES | |
1587 | dnl LIBSUPCXX_INCLUDES | |
1588 | dnl LIBIO_INCLUDES | |
1589 | dnl CSHADOW_INCLUDES | |
1590 | dnl | |
1591 | dnl GLIBCPP_EXPORT_INCLUDE | |
1592 | AC_DEFUN(GLIBCPP_EXPORT_INCLUDES, [ | |
1593 | # Root level of the include sources. | |
1594 | GLIBCPP_INCLUDE_DIR='$(top_srcdir)/include' | |
1595 | ||
1596 | # Can either use include/c or include/c_std to grab "C" headers. This | |
1597 | # variable is set to the include directory currently in use. | |
1598 | # set with C_INCLUDE_DIR in GLIBCPP_ENABLE_SHADOW | |
1599 | ||
1600 | # Passed down for cross compilers, canadian crosses. | |
1601 | TOPLEVEL_INCLUDES='-I$(includedir)' | |
1602 | ||
1603 | LIBMATH_INCLUDES='-I$(top_srcdir)/libmath' | |
1604 | ||
1605 | LIBSUPCXX_INCLUDES='-I$(top_srcdir)/libsupc++' | |
1606 | ||
1607 | #if GLIBCPP_NEED_LIBIO | |
1608 | LIBIO_INCLUDES='-I$(top_builddir)/libio -I$(top_srcdir)/libio' | |
1609 | #else | |
1610 | #LIBIO_INCLUDES='-I$(top_srcdir)/libio' | |
1611 | #endif | |
1612 | ||
1613 | #if GLIBCPP_USE_CSHADOW | |
1614 | # CSHADOW_INCLUDES='-I$(GLIBCPP_INCLUDE_DIR)/std -I$(C_INCLUDE_DIR) \ | |
1615 | # -I$(top_blddir)/cshadow' | |
1616 | #else | |
1617 | CSHADOW_INCLUDES='-I$(GLIBCPP_INCLUDE_DIR)/std -I$(C_INCLUDE_DIR)' | |
1618 | #endif | |
1619 | ||
1620 | # Now, export this to all the little Makefiles.... | |
1621 | AC_SUBST(GLIBCPP_INCLUDE_DIR) | |
1622 | AC_SUBST(TOPLEVEL_INCLUDES) | |
1623 | AC_SUBST(LIBMATH_INCLUDES) | |
1624 | AC_SUBST(LIBSUPCXX_INCLUDES) | |
1625 | AC_SUBST(LIBIO_INCLUDES) | |
1626 | AC_SUBST(CSHADOW_INCLUDES) | |
1627 | ]) | |
1628 | ||
1629 | ||
1630 | dnl | |
1631 | dnl Set up *_FLAGS and *FLAGS variables for all sundry Makefile.am's. | |
1632 | dnl | |
1633 | AC_DEFUN(GLIBCPP_EXPORT_FLAGS, [ | |
1634 | # Optimization flags that are probably a good idea for thrill-seekers. Just | |
1635 | # uncomment the lines below and make, everything else is ready to go... | |
1636 | # OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc | |
1637 | OPTIMIZE_CXXFLAGS= | |
1638 | AC_SUBST(OPTIMIZE_CXXFLAGS) | |
1639 | ||
1640 | WARN_FLAGS='-Wall -Wno-format -W -Wwrite-strings -Winline' | |
1641 | AC_SUBST(WARN_FLAGS) | |
1642 | ]) | |
1643 | ||
b2dad0e3 | 1644 | |
af9fe0d1 BK |
1645 | # Check whether LC_MESSAGES is available in <locale.h>. |
1646 | # Ulrich Drepper <drepper@cygnus.com>, 1995. | |
1647 | # | |
1648 | # This file file be copied and used freely without restrictions. It can | |
1649 | # be used in projects which are not available under the GNU Public License | |
1650 | # but which still want to provide support for the GNU gettext functionality. | |
1651 | # Please note that the actual code is *not* freely available. | |
1652 | ||
1653 | # serial 1 | |
1654 | ||
1655 | AC_DEFUN(AC_LC_MESSAGES, | |
1656 | [if test $ac_cv_header_locale_h = yes; then | |
1657 | AC_CACHE_CHECK([for LC_MESSAGES], ac_cv_val_LC_MESSAGES, | |
1658 | [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES], | |
1659 | ac_cv_val_LC_MESSAGES=yes, ac_cv_val_LC_MESSAGES=no)]) | |
1660 | if test $ac_cv_val_LC_MESSAGES = yes; then | |
1661 | AC_DEFINE(HAVE_LC_MESSAGES) | |
1662 | fi | |
1663 | fi]) | |
1664 | ||
1665 | ||
1666 | # Check for functions in math library. | |
1667 | # Ulrich Drepper <drepper@cygnus.com>, 1998. | |
1668 | # | |
1669 | # This file can be copied and used freely without restrictions. It can | |
1670 | # be used in projects which are not available under the GNU Public License | |
1671 | # but which still want to provide support for the GNU gettext functionality. | |
1672 | # Please note that the actual code is *not* freely available. | |
1673 | ||
1674 | # serial 1 | |
1675 | ||
1676 | dnl AC_REPLACE_MATHFUNCS(FUNCTION...) | |
1677 | AC_DEFUN(AC_REPLACE_MATHFUNCS, | |
1678 | [AC_CHECK_FUNCS([$1], , [LIBMATHOBJS="$LIBMATHOBJS ${ac_func}.lo"]) | |
1679 | AC_SUBST(LIBMATHOBJS)dnl | |
1680 | ]) | |
1681 | ||
1682 | ||
1683 | # Check for string functions. | |
1684 | # Ulrich Drepper <drepper@cygnus.com>, 1998. | |
1685 | # | |
1686 | # This file can be copied and used freely without restrictions. It can | |
1687 | # be used in projects which are not available under the GNU Public License | |
1688 | # but which still want to provide support for the GNU gettext functionality. | |
1689 | # Please note that the actual code is *not* freely available. | |
1690 | ||
1691 | # serial 1 | |
1692 | ||
1693 | dnl AC_REPLACE_STRINGFUNCS(FUNCTION...) | |
1694 | AC_DEFUN(AC_REPLACE_STRINGFUNCS, | |
1695 | [AC_CHECK_FUNCS([$1], , [LIBSTRINGOBJS="$LIBSTRINGOBJS ${ac_func}.lo"]) | |
1696 | AC_SUBST(LIBSTRINGOBJS)dnl | |
1697 | ]) | |
29bd52c8 PE |
1698 | |
1699 | ||
1700 | dnl This macro searches for a GNU version of make. If a match is found, the | |
1701 | dnl makefile variable `ifGNUmake' is set to the empty string, otherwise it is | |
99b51359 | 1702 | dnl set to "#". This is useful for including a special features in a Makefile, |
29bd52c8 PE |
1703 | dnl which cannot be handled by other versions of make. The variable |
1704 | dnl _cv_gnu_make_command is set to the command to invoke GNU make if it exists, | |
1705 | dnl the empty string otherwise. | |
1706 | dnl | |
1707 | dnl Here is an example of its use: | |
1708 | dnl | |
1709 | dnl Makefile.in might contain: | |
1710 | dnl | |
1711 | dnl # A failsafe way of putting a dependency rule into a makefile | |
1712 | dnl $(DEPEND): | |
1713 | dnl $(CC) -MM $(srcdir)/*.c > $(DEPEND) | |
1714 | dnl | |
1715 | dnl @ifGNUmake@ ifeq ($(DEPEND),$(wildcard $(DEPEND))) | |
1716 | dnl @ifGNUmake@ include $(DEPEND) | |
1717 | dnl @ifGNUmake@ endif | |
1718 | dnl | |
1719 | dnl Then configure.in would normally contain: | |
1720 | dnl | |
1721 | dnl CHECK_GNU_MAKE() | |
1722 | dnl AC_OUTPUT(Makefile) | |
1723 | dnl | |
1724 | dnl Then perhaps to cause gnu make to override any other make, we could do | |
1725 | dnl something like this (note that GNU make always looks for GNUmakefile first): | |
1726 | dnl | |
1727 | dnl if ! test x$_cv_gnu_make_command = x ; then | |
1728 | dnl mv Makefile GNUmakefile | |
1729 | dnl echo .DEFAULT: > Makefile ; | |
1730 | dnl echo \ $_cv_gnu_make_command \$@ >> Makefile; | |
1731 | dnl fi | |
1732 | dnl | |
1733 | dnl Then, if any (well almost any) other make is called, and GNU make also | |
1734 | dnl exists, then the other make wraps the GNU make. | |
1735 | dnl | |
1736 | dnl @author John Darrington <j.darrington@elvis.murdoch.edu.au> | |
421173e6 | 1737 | dnl @version 1.1 #### replaced Id string now that Id is for lib-v3; pme |
29bd52c8 PE |
1738 | dnl |
1739 | dnl #### Changes for libstdc++-v3: reformatting and linewrapping; prepending | |
1740 | dnl #### GLIBCPP_ to the macro name; adding the :-make fallback in the | |
79f5e38e BC |
1741 | dnl #### conditional's subshell (" --version" is not a command), using a |
1742 | dnl #### different option to grep(1). | |
29bd52c8 PE |
1743 | dnl #### -pme |
1744 | AC_DEFUN( | |
1745 | GLIBCPP_CHECK_GNU_MAKE, [AC_CACHE_CHECK( for GNU make,_cv_gnu_make_command, | |
1746 | _cv_gnu_make_command='' ; | |
1747 | dnl Search all the common names for GNU make | |
1748 | for a in "${MAKE:-make}" make gmake gnumake ; do | |
5219f162 | 1749 | if ( $a --version 2> /dev/null | grep -c GNU ) |
79f5e38e | 1750 | then |
29bd52c8 PE |
1751 | _cv_gnu_make_command=$a ; |
1752 | break; | |
1753 | fi | |
1754 | done ; | |
1755 | ) ; | |
1756 | dnl If there was a GNU version, then set @ifGNUmake@ to the empty | |
1757 | dnl string, '#' otherwise | |
1758 | if test "x$_cv_gnu_make_command" != "x" ; then | |
1759 | ifGNUmake='' ; | |
1760 | else | |
1761 | ifGNUmake='#' ; | |
1762 | fi | |
1763 | AC_SUBST(ifGNUmake) | |
1764 | ]) | |
3df64633 AO |
1765 | |
1766 | sinclude(../libtool.m4) | |
1767 | dnl The lines below arrange for aclocal not to bring an installed | |
1768 | dnl libtool.m4 into aclocal.m4, while still arranging for automake to | |
1769 | dnl add a definition of LIBTOOL to Makefile.in. | |
1770 | ifelse(,,,[AC_SUBST(LIBTOOL) | |
1771 | AC_DEFUN([AM_PROG_LIBTOOL]) | |
1772 | AC_DEFUN([AC_LIBTOOL_DLOPEN]) | |
1773 | AC_DEFUN([AC_PROG_LD]) | |
7f586614 | 1774 | ]) |
9a200b0a | 1775 |