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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 ${enableval} for multilib option) ;; | |
15 | esac], [multilib=yes])dnl | |
16 | ||
e2c20fae | 17 | glibcpp_basedir=$auxdir/$1/libstdc++-v3 |
b2dad0e3 BK |
18 | AC_SUBST(glibcpp_basedir) |
19 | ||
6a163d7c | 20 | AM_INIT_AUTOMAKE(libstdc++, 2.91) |
b2dad0e3 | 21 | |
28861379 BK |
22 | # Never versions of autoconf add an underscore to these functions. |
23 | # Prevent future problems ... | |
24 | ifdef([AC_PROG_CC_G],[],[define([AC_PROG_CC_G],defn([_AC_PROG_CC_G]))]) | |
25 | ifdef([AC_PROG_CC_GNU],[],[define([AC_PROG_CC_GNU],defn([_AC_PROG_CC_GNU]))]) | |
26 | ifdef([AC_PROG_CXX_G],[],[define([AC_PROG_CXX_G],defn([_AC_PROG_CXX_G]))]) | |
27 | ifdef([AC_PROG_CXX_GNU],[],[define([AC_PROG_CXX_GNU],defn([_AC_PROG_CXX_GNU]))]) | |
5780a46b BK |
28 | |
29 | # AC_PROG_CC | |
30 | ||
b2dad0e3 BK |
31 | # FIXME: We temporarily define our own version of AC_PROG_CC. This is |
32 | # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We | |
33 | # are probably using a cross compiler, which will not be able to fully | |
34 | # link an executable. This should really be fixed in autoconf | |
35 | # itself. | |
36 | ||
37 | AC_DEFUN(LIB_AC_PROG_CC, | |
38 | [AC_BEFORE([$0], [AC_PROG_CPP])dnl | |
39 | dnl Fool anybody using AC_PROG_CC. | |
40 | AC_PROVIDE([AC_PROG_CC]) | |
41 | AC_CHECK_PROG(CC, gcc, gcc) | |
42 | if test -z "$CC"; then | |
43 | AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc) | |
44 | test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH]) | |
45 | fi | |
46 | ||
47 | AC_PROG_CC_GNU | |
48 | ||
49 | if test $ac_cv_prog_gcc = yes; then | |
50 | GCC=yes | |
51 | dnl Check whether -g works, even if CFLAGS is set, in case the package | |
52 | dnl plays around with CFLAGS (such as to build both debugging and | |
53 | dnl normal versions of a library), tasteless as that idea is. | |
54 | ac_test_CFLAGS="${CFLAGS+set}" | |
55 | ac_save_CFLAGS="$CFLAGS" | |
56 | CFLAGS= | |
57 | AC_PROG_CC_G | |
58 | if test "$ac_test_CFLAGS" = set; then | |
59 | CFLAGS="$ac_save_CFLAGS" | |
60 | elif test $ac_cv_prog_cc_g = yes; then | |
61 | CFLAGS="-g -O2" | |
62 | else | |
63 | CFLAGS="-O2" | |
64 | fi | |
65 | else | |
66 | GCC= | |
67 | test "${CFLAGS+set}" = set || CFLAGS="-g" | |
68 | fi | |
69 | ]) | |
70 | ||
71 | LIB_AC_PROG_CC | |
72 | ||
5780a46b BK |
73 | # Can't just call these here as g++ requires libstc++ to be built.... |
74 | # AC_PROG_CXX | |
75 | ||
b2dad0e3 BK |
76 | # Likewise for AC_PROG_CXX. |
77 | AC_DEFUN(LIB_AC_PROG_CXX, | |
78 | [AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl | |
79 | dnl Fool anybody using AC_PROG_CXX. | |
80 | AC_PROVIDE([AC_PROG_CXX]) | |
de9aefe0 AO |
81 | # Use CXX_libstdcxx so that we do not cause CXX to be cached with the |
82 | # flags that come in CXX while configuring libstdc++. They're different | |
bb4127f8 MM |
83 | # from those used for all other target libraries. If CXX is set in |
84 | # the environment, respect that here. | |
85 | CXX_libstdcxx=$CXX | |
aa17a5f3 | 86 | AC_CHECK_PROGS(CXX_libstdcxx, $CCC c++ g++ gcc CC cxx cc++, gcc) |
de9aefe0 AO |
87 | CXX=$CXX_libstdcxx |
88 | AC_SUBST(CXX) | |
b2dad0e3 BK |
89 | test -z "$CXX" && AC_MSG_ERROR([no acceptable c++ found in \$PATH]) |
90 | ||
91 | AC_PROG_CXX_GNU | |
92 | ||
93 | if test $ac_cv_prog_gxx = yes; then | |
94 | GXX=yes | |
95 | dnl Check whether -g works, even if CXXFLAGS is set, in case the package | |
96 | dnl plays around with CXXFLAGS (such as to build both debugging and | |
97 | dnl normal versions of a library), tasteless as that idea is. | |
98 | ac_test_CXXFLAGS="${CXXFLAGS+set}" | |
99 | ac_save_CXXFLAGS="$CXXFLAGS" | |
100 | CXXFLAGS= | |
101 | AC_PROG_CXX_G | |
102 | if test "$ac_test_CXXFLAGS" = set; then | |
103 | CXXFLAGS="$ac_save_CXXFLAGS" | |
104 | elif test $ac_cv_prog_cxx_g = yes; then | |
105 | CXXFLAGS="-g -O2" | |
106 | else | |
107 | CXXFLAGS="-O2" | |
108 | fi | |
109 | else | |
110 | GXX= | |
111 | test "${CXXFLAGS+set}" = set || CXXFLAGS="-g" | |
112 | fi | |
113 | ]) | |
114 | ||
115 | LIB_AC_PROG_CXX | |
116 | ||
5780a46b BK |
117 | AC_CHECK_TOOL(AS, as) |
118 | AC_CHECK_TOOL(AR, ar) | |
119 | AC_CHECK_TOOL(RANLIB, ranlib, :) | |
120 | ||
121 | AC_PROG_INSTALL | |
b2dad0e3 | 122 | |
5780a46b | 123 | AM_MAINTAINER_MODE |
b2dad0e3 | 124 | |
5780a46b BK |
125 | # We need AC_EXEEXT to keep automake happy in cygnus mode. However, |
126 | # at least currently, we never actually build a program, so we never | |
127 | # need to use $(EXEEXT). Moreover, the test for EXEEXT normally | |
128 | # fails, because we are probably configuring with a cross compiler | |
129 | # which cant create executables. So we include AC_EXEEXT to keep | |
130 | # automake happy, but we dont execute it, since we dont care about | |
15bcd79a | 131 | # the result. |
5780a46b BK |
132 | if false; then |
133 | AC_EXEEXT | |
134 | fi | |
b2dad0e3 | 135 | |
5780a46b BK |
136 | . [$]{glibcpp_basedir}/configure.host |
137 | ||
138 | case [$]{glibcpp_basedir} in | |
6f87af20 | 139 | /* | [A-Za-z]:[\\/]*) libgcj_flagbasedir=[$]{glibcpp_basedir} ;; |
5780a46b BK |
140 | *) glibcpp_flagbasedir='[$](top_builddir)/'[$]{glibcpp_basedir} ;; |
141 | esac | |
b2dad0e3 | 142 | |
d0941a31 | 143 | # This does for the target what configure.host does for the host. In |
5e3cbe0b | 144 | # addition to possibly modifying the same flags, it also sets up symlinks. |
d0941a31 | 145 | GLIBCPP_CHECK_TARGET |
b2dad0e3 BK |
146 | ]) |
147 | ||
148 | ||
149 | dnl | |
8bd636c5 | 150 | dnl Check to see if g++ can compile this library, and if so, if any version- |
c470c17d BK |
151 | dnl specific precautions need to be taken. |
152 | dnl | |
153 | dnl GLIBCPP_CHECK_COMPILER_VERSION | |
154 | AC_DEFUN(GLIBCPP_CHECK_COMPILER_VERSION, [ | |
44382959 BK |
155 | if test ! -f stamp-sanity-compiler; then |
156 | AC_MSG_CHECKING([for g++ that will successfully compile libstdc++-v3]) | |
157 | AC_LANG_SAVE | |
158 | AC_LANG_CPLUSPLUS | |
159 | AC_EGREP_CPP(ok, [ | |
6a163d7c | 160 | #if __GNUC__ >= 3 |
c470c17d BK |
161 | ok |
162 | #endif | |
6a163d7c | 163 | ], gpp_satisfactory=yes, AC_MSG_ERROR([please upgrade to GCC 3.0 or above])) |
44382959 | 164 | AC_LANG_RESTORE |
c470c17d | 165 | AC_MSG_RESULT($gpp_satisfactory) |
44382959 BK |
166 | touch stamp-sanity-compiler |
167 | fi | |
c470c17d BK |
168 | ]) |
169 | ||
170 | ||
171 | dnl | |
172 | dnl Test for newer compiler features, or features that are present in newer | |
d3a12960 BK |
173 | dnl compiler version but not older compiler versions should be placed |
174 | dnl here. | |
b2dad0e3 | 175 | dnl |
7f586614 BK |
176 | dnl Define WERROR='-Werror' if requested and possible; g++'s that lack the |
177 | dnl new inlining code or the new system_header pragma will die on -Werror. | |
178 | dnl Leave it out by default and use maint-mode to use it. | |
b2dad0e3 | 179 | dnl |
c470c17d | 180 | dnl Define SECTION_FLAGS='-ffunction-sections -fdata-sections' if |
c21b6f87 PE |
181 | dnl compiler supports it and the user has not requested debug mode. |
182 | dnl | |
c470c17d BK |
183 | dnl GLIBCPP_CHECK_COMPILER_FEATURES |
184 | AC_DEFUN(GLIBCPP_CHECK_COMPILER_FEATURES, [ | |
a4e99046 PE |
185 | # All these tests are for C++; save the language and the compiler flags. |
186 | # The CXXFLAGS thing is suspicious, but based on similar bits | |
187 | # found in GLIBCPP_CONFIGURE. | |
188 | AC_LANG_SAVE | |
189 | AC_LANG_CPLUSPLUS | |
190 | ac_test_CXXFLAGS="${CXXFLAGS+set}" | |
191 | ac_save_CXXFLAGS="$CXXFLAGS" | |
a4e99046 | 192 | |
7f586614 BK |
193 | # Check for maintainer-mode bits. |
194 | if test x"$USE_MAINTAINER_MODE" = xno; then | |
195 | WERROR='' | |
8bd636c5 | 196 | else |
7f586614 | 197 | WERROR='-Werror' |
8bd636c5 PE |
198 | fi |
199 | ||
c470c17d BK |
200 | # Check for -ffunction-sections -fdata-sections |
201 | AC_MSG_CHECKING([for g++ that supports -ffunction-sections -fdata-sections]) | |
0517cb99 | 202 | CXXFLAGS='-Werror -ffunction-sections -fdata-sections' |
c470c17d BK |
203 | AC_TRY_COMPILE(, [int foo; |
204 | ], [ac_fdsections=yes], [ac_fdsections=no]) | |
205 | if test "$ac_test_CXXFLAGS" = set; then | |
206 | CXXFLAGS="$ac_save_CXXFLAGS" | |
207 | else | |
208 | # this is the suspicious part | |
209 | CXXFLAGS='' | |
210 | fi | |
4c07386b | 211 | if test x"$ac_fdsections" = x"yes" && test x"$enable_debug" = x"no"; then |
c470c17d BK |
212 | SECTION_FLAGS='-ffunction-sections -fdata-sections' |
213 | fi | |
214 | AC_MSG_RESULT($ac_fdsections) | |
215 | ||
a4e99046 | 216 | AC_LANG_RESTORE |
8bd636c5 | 217 | AC_SUBST(WERROR) |
c470c17d | 218 | AC_SUBST(SECTION_FLAGS) |
b2dad0e3 BK |
219 | ]) |
220 | ||
c470c17d BK |
221 | |
222 | dnl | |
421173e6 PE |
223 | dnl If GNU ld is in use, check to see if tricky linker opts can be used. If |
224 | dnl the native linker is in use, all variables will be defined to something | |
225 | dnl safe (like an empty string). | |
226 | dnl | |
227 | dnl Define SECTION_LDFLAGS='-Wl,--gc-sections' if possible. | |
228 | dnl Define OPT_LDFLAGS='-Wl,-O1' if possible. | |
c470c17d | 229 | dnl |
c470c17d BK |
230 | dnl GLIBCPP_CHECK_LINKER_FEATURES |
231 | AC_DEFUN(GLIBCPP_CHECK_LINKER_FEATURES, [ | |
421173e6 PE |
232 | # If we're not using GNU ld, then there's no point in even trying these |
233 | # tests. Check for that first. We should have already tested for gld | |
234 | # by now (in libtool), but require it now just to be safe... | |
a9117427 BK |
235 | SECTION_LDFLAGS='' |
236 | OPT_LDFLAGS='' | |
421173e6 | 237 | AC_REQUIRE([AC_PROG_LD]) |
5bd17d39 PE |
238 | |
239 | # Set --gc-sections. | |
f4c79fef | 240 | if test "$ac_cv_prog_gnu_ld" = "notbroken"; then |
a9117427 | 241 | # GNU ld it is! Joy and bunny rabbits! |
421173e6 PE |
242 | |
243 | # All these tests are for C++; save the language and the compiler flags. | |
244 | # Need to do this so that g++ won't try to link in libstdc++ | |
245 | ac_test_CFLAGS="${CFLAGS+set}" | |
246 | ac_save_CFLAGS="$CFLAGS" | |
5bd17d39 | 247 | CFLAGS='-x c++ -Wl,--gc-sections' |
421173e6 PE |
248 | |
249 | # Check for -Wl,--gc-sections | |
e466dc8a BK |
250 | # XXX This test is broken at the moment, as symbols required for |
251 | # linking are now in libsupc++ (not built yet.....). In addition, | |
a9117427 BK |
252 | # this test has cored on solaris in the past. In addition, |
253 | # --gc-sections doesn't really work at the moment (keeps on discarding | |
254 | # used sections, first .eh_frame and now some of the glibc sections for | |
255 | # iconv). Bzzzzt. Thanks for playing, maybe next time. | |
421173e6 PE |
256 | AC_MSG_CHECKING([for ld that supports -Wl,--gc-sections]) |
257 | AC_TRY_RUN([ | |
258 | int main(void) | |
259 | { | |
a9117427 BK |
260 | try { throw 1; } |
261 | catch (...) { }; | |
421173e6 PE |
262 | return 0; |
263 | } | |
e466dc8a | 264 | ], [ac_sectionLDflags=yes],[ac_sectionLFflags=no], [ac_sectionLDflags=yes]) |
421173e6 PE |
265 | if test "$ac_test_CFLAGS" = set; then |
266 | CFLAGS="$ac_save_CFLAGS" | |
267 | else | |
268 | # this is the suspicious part | |
269 | CFLAGS='' | |
270 | fi | |
271 | if test "$ac_sectionLDflags" = "yes"; then | |
5bd17d39 | 272 | SECTION_LDFLAGS='-Wl,--gc-sections' |
421173e6 PE |
273 | fi |
274 | AC_MSG_RESULT($ac_sectionLDflags) | |
5bd17d39 | 275 | fi |
a9117427 | 276 | |
5bd17d39 | 277 | # Set linker optimization flags. |
4c07386b | 278 | if test x"$ac_cv_prog_gnu_ld" = x"yes" && test x"$enable_debug" = x"no"; then |
421173e6 | 279 | OPT_LDFLAGS='-Wl,-O1' |
421173e6 | 280 | fi |
5bd17d39 | 281 | |
c470c17d | 282 | AC_SUBST(SECTION_LDFLAGS) |
421173e6 | 283 | AC_SUBST(OPT_LDFLAGS) |
c470c17d BK |
284 | ]) |
285 | ||
286 | ||
b2dad0e3 | 287 | dnl |
11fc1858 | 288 | dnl Check to see if the (math function) argument passed is |
f8db4f20 | 289 | dnl declared when using the c++ compiler |
38bd7296 BK |
290 | dnl ASSUMES argument is a math function with ONE parameter |
291 | dnl | |
f8db4f20 BK |
292 | dnl GLIBCPP_CHECK_MATH_DECL_1 |
293 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_1, [ | |
38bd7296 | 294 | AC_MSG_CHECKING([for $1 declaration]) |
f84ef7fb PE |
295 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
296 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
297 | AC_LANG_SAVE | |
298 | AC_LANG_CPLUSPLUS | |
01a49191 RB |
299 | AC_TRY_COMPILE([#include <math.h> |
300 | #ifdef HAVE_IEEEFP_H | |
301 | #include <ieeefp.h> | |
302 | #endif | |
303 | ], | |
f84ef7fb PE |
304 | [ $1(0);], |
305 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
306 | AC_LANG_RESTORE | |
307 | ]) | |
308 | fi | |
421173e6 | 309 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
f8db4f20 BK |
310 | ]) |
311 | ||
312 | dnl | |
313 | dnl Check to see if the (math function) argument passed is | |
314 | dnl 1) declared when using the c++ compiler | |
315 | dnl 2) has "C" linkage | |
316 | dnl 3) if not, see if 1) and 2) for argument prepended with '_' | |
317 | dnl | |
318 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
319 | dnl | |
320 | dnl argument 1 is name of function to check | |
321 | dnl | |
322 | dnl ASSUMES argument is a math function with ONE parameter | |
323 | dnl | |
324 | dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1 | |
325 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, [ | |
326 | GLIBCPP_CHECK_MATH_DECL_1($1) | |
421173e6 | 327 | if test x$glibcpp_cv_func_$1_use = x"yes"; then |
38bd7296 | 328 | AC_CHECK_FUNCS($1) |
f8db4f20 BK |
329 | else |
330 | GLIBCPP_CHECK_MATH_DECL_1(_$1) | |
331 | if test x$glibcpp_cv_func__$1_use = x"yes"; then | |
332 | AC_CHECK_FUNCS(_$1) | |
333 | fi | |
38bd7296 BK |
334 | fi |
335 | ]) | |
336 | ||
f8db4f20 | 337 | |
20b11783 MM |
338 | dnl |
339 | dnl Like GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, but does a bunch of | |
340 | dnl of functions at once. It's an all-or-nothing check -- either | |
9b8fd32c | 341 | dnl HAVE_XYZ is defined for each of the functions, or for none of them. |
20b11783 MM |
342 | dnl Doing it this way saves significant configure time. |
343 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1, [ | |
344 | AC_MSG_CHECKING([for $1 functions]) | |
345 | AC_CACHE_VAL(glibcpp_cv_func_$2_use, [ | |
346 | AC_LANG_SAVE | |
347 | AC_LANG_CPLUSPLUS | |
348 | AC_TRY_COMPILE([#include <math.h>], | |
349 | [ `for x in $3; do echo "$x (0);"; done` ], | |
9b8fd32c PE |
350 | [glibcpp_cv_func_$2_use=yes], |
351 | [glibcpp_cv_func_$2_use=no]) | |
20b11783 MM |
352 | AC_LANG_RESTORE]) |
353 | AC_MSG_RESULT($glibcpp_cv_func_$2_use) | |
354 | if test x$glibcpp_cv_func_$2_use = x"yes"; then | |
355 | AC_CHECK_FUNCS($3) | |
356 | fi | |
357 | ]) | |
38bd7296 BK |
358 | |
359 | dnl | |
11fc1858 | 360 | dnl Check to see if the (math function) argument passed is |
f8db4f20 BK |
361 | dnl declared when using the c++ compiler |
362 | dnl ASSUMES argument is a math function with ONE parameter | |
38bd7296 | 363 | dnl |
f8db4f20 BK |
364 | dnl GLIBCPP_CHECK_MATH_DECL_2 |
365 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_2, [ | |
38bd7296 | 366 | AC_MSG_CHECKING([for $1 declaration]) |
f84ef7fb PE |
367 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
368 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
369 | AC_LANG_SAVE | |
370 | AC_LANG_CPLUSPLUS | |
371 | AC_TRY_COMPILE([#include <math.h>], | |
372 | [ $1(0, 0);], | |
373 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
374 | AC_LANG_RESTORE | |
375 | ]) | |
376 | fi | |
421173e6 | 377 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
38bd7296 BK |
378 | ]) |
379 | ||
38bd7296 | 380 | dnl |
11fc1858 | 381 | dnl Check to see if the (math function) argument passed is |
38bd7296 BK |
382 | dnl 1) declared when using the c++ compiler |
383 | dnl 2) has "C" linkage | |
384 | dnl | |
385 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
386 | dnl | |
387 | dnl argument 1 is name of function to check | |
388 | dnl | |
f8db4f20 | 389 | dnl ASSUMES argument is a math function with TWO parameters |
38bd7296 | 390 | dnl |
f8db4f20 BK |
391 | dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2 |
392 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2, [ | |
393 | GLIBCPP_CHECK_MATH_DECL_2($1) | |
394 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
395 | AC_CHECK_FUNCS($1) | |
396 | else | |
397 | GLIBCPP_CHECK_MATH_DECL_2(_$1) | |
398 | if test x$glibcpp_cv_func__$1_use = x"yes"; then | |
399 | AC_CHECK_FUNCS(_$1) | |
400 | fi | |
401 | fi | |
402 | ]) | |
403 | ||
404 | ||
405 | dnl | |
406 | dnl Check to see if the (math function) argument passed is | |
407 | dnl declared when using the c++ compiler | |
408 | dnl ASSUMES argument is a math function with ONE parameter | |
409 | dnl | |
410 | dnl GLIBCPP_CHECK_MATH_DECL_3 | |
411 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_3, [ | |
38bd7296 | 412 | AC_MSG_CHECKING([for $1 declaration]) |
f84ef7fb PE |
413 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
414 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
415 | AC_LANG_SAVE | |
416 | AC_LANG_CPLUSPLUS | |
417 | AC_TRY_COMPILE([#include <math.h>], | |
418 | [ $1(0, 0, 0);], | |
419 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
420 | AC_LANG_RESTORE | |
421 | ]) | |
422 | fi | |
421173e6 | 423 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
f8db4f20 BK |
424 | ]) |
425 | ||
426 | dnl | |
427 | dnl Check to see if the (math function) argument passed is | |
428 | dnl 1) declared when using the c++ compiler | |
429 | dnl 2) has "C" linkage | |
430 | dnl | |
431 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
432 | dnl | |
433 | dnl argument 1 is name of function to check | |
434 | dnl | |
435 | dnl ASSUMES argument is a math function with THREE parameters | |
436 | dnl | |
437 | dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3 | |
438 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3, [ | |
439 | GLIBCPP_CHECK_MATH_DECL_3($1) | |
421173e6 | 440 | if test x$glibcpp_cv_func_$1_use = x"yes"; then |
38bd7296 | 441 | AC_CHECK_FUNCS($1) |
f8db4f20 BK |
442 | else |
443 | GLIBCPP_CHECK_MATH_DECL_3(_$1) | |
444 | if test x$glibcpp_cv_func__$1_use = x"yes"; then | |
445 | AC_CHECK_FUNCS(_$1) | |
446 | fi | |
38bd7296 BK |
447 | fi |
448 | ]) | |
449 | ||
450 | ||
5bd17d39 PE |
451 | dnl |
452 | dnl Check to see if the (stdlib function) argument passed is | |
453 | dnl 1) declared when using the c++ compiler | |
454 | dnl 2) has "C" linkage | |
455 | dnl | |
456 | dnl Define HAVE_STRTOLD if "strtold" is declared and links | |
457 | dnl Define HAVE_STRTOF if "strtof" is declared and links | |
458 | dnl | |
459 | dnl argument 1 is name of function to check | |
460 | dnl | |
461 | dnl ASSUMES argument is a math function with TWO parameters | |
462 | dnl | |
463 | dnl GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2 | |
464 | AC_DEFUN(GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2, [ | |
465 | AC_MSG_CHECKING([for $1 declaration]) | |
f84ef7fb PE |
466 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
467 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
468 | AC_LANG_SAVE | |
469 | AC_LANG_CPLUSPLUS | |
470 | AC_TRY_COMPILE([#include <stdlib.h>], | |
471 | [ $1(0, 0);], | |
472 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
473 | AC_LANG_RESTORE | |
474 | ]) | |
475 | fi | |
5bd17d39 PE |
476 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
477 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
478 | AC_CHECK_FUNCS($1) | |
479 | fi | |
480 | ]) | |
481 | ||
482 | ||
11fc1858 BK |
483 | dnl |
484 | dnl Because the builtins are picky picky picky about the arguments they take, | |
485 | dnl do an explict linkage tests here. | |
486 | dnl Check to see if the (math function) argument passed is | |
487 | dnl 1) declared when using the c++ compiler | |
488 | dnl 2) has "C" linkage | |
489 | dnl | |
490 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
491 | dnl | |
492 | dnl argument 1 is name of function to check | |
493 | dnl | |
494 | dnl ASSUMES argument is a math function with ONE parameter | |
495 | dnl | |
496 | dnl GLIBCPP_CHECK_BUILTIN_MATH_DECL_LINKAGE_1 | |
497 | AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1, [ | |
11fc1858 | 498 | AC_MSG_CHECKING([for $1 declaration]) |
f84ef7fb PE |
499 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
500 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
501 | AC_LANG_SAVE | |
502 | AC_LANG_CPLUSPLUS | |
503 | AC_TRY_COMPILE([#include <math.h>], | |
504 | [ $1(0);], | |
505 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
506 | AC_LANG_RESTORE | |
507 | ]) | |
508 | fi | |
421173e6 PE |
509 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
510 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
11fc1858 | 511 | AC_MSG_CHECKING([for $1 linkage]) |
f84ef7fb PE |
512 | if test x${glibcpp_cv_func_$1_link+set} != xset; then |
513 | AC_CACHE_VAL(glibcpp_cv_func_$1_link, [ | |
514 | AC_TRY_LINK([#include <math.h>], | |
515 | [ $1(0);], | |
516 | [glibcpp_cv_func_$1_link=yes], [glibcpp_cv_func_$1_link=no]) | |
517 | ]) | |
518 | fi | |
421173e6 PE |
519 | AC_MSG_RESULT($glibcpp_cv_func_$1_link) |
520 | if test x$glibcpp_cv_func_$1_link = x"yes"; then | |
11fc1858 BK |
521 | ac_tr_func=HAVE_`echo $1 | tr 'abcdefghijklmnopqrstuvwxyz' 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'` |
522 | AC_DEFINE_UNQUOTED(${ac_tr_func}) | |
523 | fi | |
524 | fi | |
525 | ]) | |
526 | ||
527 | ||
528 | dnl | |
529 | dnl Check to see what builtin math functions are supported | |
530 | dnl | |
531 | dnl check for __builtin_abs | |
532 | dnl check for __builtin_fabsf | |
533 | dnl check for __builtin_fabs | |
534 | dnl check for __builtin_fabl | |
535 | dnl check for __builtin_labs | |
536 | dnl check for __builtin_sqrtf | |
537 | dnl check for __builtin_sqrtl | |
538 | dnl check for __builtin_fsqrt | |
539 | dnl check for __builtin_sinf | |
540 | dnl check for __builtin_sin | |
541 | dnl check for __builtin_sinl | |
542 | dnl check for __builtin_cosf | |
543 | dnl check for __builtin_cos | |
544 | dnl check for __builtin_cosl | |
545 | dnl | |
546 | dnl GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT | |
547 | AC_DEFUN(GLIBCPP_CHECK_BUILTIN_MATH_SUPPORT, [ | |
548 | dnl Test for builtin math functions. | |
549 | dnl These are made in gcc/c-common.c | |
550 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_abs) | |
551 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsf) | |
552 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabs) | |
553 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fabsl) | |
554 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_labs) | |
555 | ||
556 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtf) | |
557 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_fsqrt) | |
558 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sqrtl) | |
559 | ||
560 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinf) | |
561 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sin) | |
562 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_sinl) | |
563 | ||
564 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosf) | |
565 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cos) | |
566 | GLIBCPP_CHECK_BUILTIN_MATH_DECL_AND_LINKAGE_1(__builtin_cosl) | |
567 | ||
568 | dnl There is, without a doubt, a more elegant way to have these | |
569 | dnl names exported so that they won't be stripped out of acconfig.h by | |
570 | dnl autoheader. I leave this as an exercise to somebody less frustrated | |
571 | dnl than I.... please email the libstdc++ list if you can figure out a | |
572 | dnl more elegant approach (see autoconf/acgen.m4 and specifically | |
573 | dnl AC_CHECK_FUNC for things to steal.) | |
574 | dummyvar=no | |
575 | if test x$dummyvar = x"yes"; then | |
576 | AC_DEFINE(HAVE___BUILTIN_ABS) | |
577 | AC_DEFINE(HAVE___BUILTIN_LABS) | |
578 | AC_DEFINE(HAVE___BUILTIN_COS) | |
579 | AC_DEFINE(HAVE___BUILTIN_COSF) | |
580 | AC_DEFINE(HAVE___BUILTIN_COSL) | |
581 | AC_DEFINE(HAVE___BUILTIN_FABS) | |
582 | AC_DEFINE(HAVE___BUILTIN_FABSF) | |
583 | AC_DEFINE(HAVE___BUILTIN_FABSL) | |
584 | AC_DEFINE(HAVE___BUILTIN_SIN) | |
585 | AC_DEFINE(HAVE___BUILTIN_SINF) | |
586 | AC_DEFINE(HAVE___BUILTIN_SINL) | |
587 | AC_DEFINE(HAVE___BUILTIN_FSQRT) | |
588 | AC_DEFINE(HAVE___BUILTIN_SQRTF) | |
589 | AC_DEFINE(HAVE___BUILTIN_SQRTL) | |
590 | fi | |
591 | ]) | |
592 | ||
593 | ||
5bd17d39 PE |
594 | dnl |
595 | dnl Check to see what the underlying c library | |
596 | dnl These checks need to do two things: | |
597 | dnl 1) make sure the name is declared when using the c++ compiler | |
598 | dnl 2) make sure the name has "C" linkage | |
599 | dnl This might seem like overkill but experience has shown that it's not... | |
600 | dnl | |
601 | dnl Define HAVE_STRTOF etc if "strtof" is found. | |
602 | dnl Define HAVE_STRTOLD etc if "strtold" is found. | |
603 | dnl | |
604 | dnl GLIBCPP_CHECK_STDLIB_SUPPORT | |
605 | AC_DEFUN(GLIBCPP_CHECK_STDLIB_SUPPORT, [ | |
606 | ac_test_CXXFLAGS="${CXXFLAGS+set}" | |
607 | ac_save_CXXFLAGS="$CXXFLAGS" | |
608 | CXXFLAGS='-fno-builtins -D_GNU_SOURCE' | |
609 | ||
610 | AC_CHECK_FUNCS(strtof) | |
611 | GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtold) | |
612 | ||
613 | CXXFLAGS="$ac_save_CXXFLAGS" | |
614 | ]) | |
615 | ||
616 | ||
2f103494 BK |
617 | dnl |
618 | dnl Check to see what the underlying c library or math library is like. | |
38bd7296 BK |
619 | dnl These checks need to do two things: |
620 | dnl 1) make sure the name is declared when using the c++ compiler | |
621 | dnl 2) make sure the name has "C" linkage | |
622 | dnl This might seem like overkill but experience has shown that it's not... | |
2f103494 BK |
623 | dnl |
624 | dnl Define HAVE_CARGF etc if "cargf" is found. | |
625 | dnl | |
626 | dnl GLIBCPP_CHECK_MATH_SUPPORT | |
627 | AC_DEFUN(GLIBCPP_CHECK_MATH_SUPPORT, [ | |
38bd7296 BK |
628 | ac_test_CXXFLAGS="${CXXFLAGS+set}" |
629 | ac_save_CXXFLAGS="$CXXFLAGS" | |
4f76382d | 630 | CXXFLAGS='-fno-builtins -D_GNU_SOURCE' |
aac350aa BK |
631 | |
632 | dnl Check libm | |
2f103494 | 633 | AC_CHECK_LIB(m, sin, libm="-lm") |
38bd7296 | 634 | ac_save_LIBS="$LIBS" |
2f103494 BK |
635 | LIBS="$LIBS $libm" |
636 | ||
38bd7296 BK |
637 | dnl Check to see if certain C math functions exist. |
638 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinf) | |
639 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnan) | |
640 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finite) | |
641 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysign) | |
642 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincos) | |
643 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fpclass) | |
644 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(qfpclass) | |
645 | ||
646 | dnl Check to see if basic C math functions have float versions. | |
20b11783 | 647 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float trig, |
9b8fd32c PE |
648 | float_trig, |
649 | acosf asinf atanf \ | |
20b11783 | 650 | cosf sinf tanf \ |
9b8fd32c | 651 | coshf sinhf tanhf) |
20b11783 | 652 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float round, |
9b8fd32c | 653 | float_round, |
20b11783 | 654 | ceilf floorf) |
38bd7296 BK |
655 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanf) |
656 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinff) | |
38bd7296 | 657 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsf) |
38bd7296 BK |
658 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodf) |
659 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpf) | |
660 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpf) | |
661 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logf) | |
662 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10f) | |
663 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modff) | |
664 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powf) | |
38bd7296 | 665 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtf) |
38bd7296 BK |
666 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosf) |
667 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitef) | |
668 | ||
669 | dnl Check to see if basic C math functions have long double versions. | |
20b11783 | 670 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double trig, |
9b8fd32c PE |
671 | long_double_trig, |
672 | acosl asinl atanl \ | |
20b11783 | 673 | cosl sinl tanl \ |
9b8fd32c | 674 | coshl sinhl tanhl) |
20b11783 | 675 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double round, |
9b8fd32c | 676 | long_double_round, |
20b11783 | 677 | ceill floorl) |
38bd7296 BK |
678 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanl) |
679 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinfl) | |
11fc1858 | 680 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysignl) |
38bd7296 | 681 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2l) |
38bd7296 BK |
682 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expl) |
683 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsl) | |
38bd7296 BK |
684 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodl) |
685 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpl) | |
686 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpl) | |
687 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logl) | |
688 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10l) | |
689 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modfl) | |
690 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powl) | |
38bd7296 | 691 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtl) |
38bd7296 BK |
692 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosl) |
693 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitel) | |
694 | ||
695 | dnl Some runtimes have these functions with a preceding underscore. Please | |
696 | dnl keep this sync'd with the one above. And if you add any new symbol, | |
697 | dnl please add the corresponding block in the @BOTTOM@ section of acconfig.h. | |
698 | dnl Check to see if certain C math functions exist. | |
38bd7296 BK |
699 | |
700 | dnl Check to see if basic C math functions have float versions. | |
20b11783 | 701 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float trig, |
9b8fd32c PE |
702 | _float_trig, |
703 | _acosf _asinf _atanf \ | |
20b11783 | 704 | _cosf _sinf _tanf \ |
9b8fd32c | 705 | _coshf _sinhf _tanhf) |
20b11783 | 706 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float round, |
9b8fd32c | 707 | _float_round, |
20b11783 | 708 | _ceilf _floorf) |
38bd7296 BK |
709 | |
710 | dnl Check to see if basic C math functions have long double versions. | |
20b11783 | 711 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double trig, |
9b8fd32c PE |
712 | _long_double_trig, |
713 | _acosl _asinl _atanl \ | |
20b11783 | 714 | _cosl _sinl _tanl \ |
9b8fd32c | 715 | _coshl _sinhl _tanhl) |
20b11783 | 716 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double round, |
9b8fd32c | 717 | _long_double_round, |
20b11783 | 718 | _ceill _floorl) |
38bd7296 BK |
719 | |
720 | LIBS="$ac_save_LIBS" | |
721 | CXXFLAGS="$ac_save_CXXFLAGS" | |
2f103494 BK |
722 | ]) |
723 | ||
724 | ||
725 | dnl | |
726 | dnl Check to see if there is native support for complex | |
727 | dnl | |
728 | dnl Don't compile bits in math/* if native support exits. | |
729 | dnl | |
8b8ab21c | 730 | dnl Define USE_COMPLEX_LONG_DOUBLE etc if "atan2l/copysignl" is found. |
2f103494 BK |
731 | dnl |
732 | dnl GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT | |
733 | AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT, [ | |
734 | dnl Check for complex versions of math functions of platform. | |
b4b2a487 | 735 | AC_CHECK_LIB(m, main) |
1228c7b6 | 736 | AC_REPLACE_MATHFUNCS(nan hypot hypotf atan2f expf copysignf) |
11fc1858 BK |
737 | |
738 | dnl Compile the long double complex functions only if the function | |
739 | dnl provides the non-complex long double functions that are needed. | |
740 | dnl Currently this includes copysignl and atan2l, which should be | |
741 | dnl cached from the GLIBCPP_CHECK_MATH_SUPPORT macro, above. | |
742 | USE_COMPLEX_LONG_DOUBLE=no | |
743 | if test x$ac_cv_func_atan2l = x"yes" \ | |
744 | && test x$ac_cv_func_copysignl = x"yes"; then | |
745 | USE_COMPLEX_LONG_DOUBLE=yes | |
1228c7b6 | 746 | AC_REPLACE_MATHFUNCS(hypotl signbitl) |
11fc1858 BK |
747 | fi |
748 | ||
2f103494 BK |
749 | AC_SUBST(USE_COMPLEX_LONG_DOUBLE) |
750 | ]) | |
751 | ||
54fa7415 | 752 | |
d0941a31 PE |
753 | dnl Check to see what architecture and operating system we are compiling |
754 | dnl for. Also, if architecture- or OS-specific flags are required for | |
755 | dnl compilation, pick them up here. | |
e974e9cc | 756 | dnl |
d0941a31 PE |
757 | dnl GLIBCPP_CHECK_TARGET |
758 | AC_DEFUN(GLIBCPP_CHECK_TARGET, [ | |
759 | . [$]{glibcpp_basedir}/configure.target | |
760 | AC_MSG_RESULT(CPU config directory is $cpu_include_dir) | |
761 | AC_MSG_RESULT(OS config directory is $os_include_dir) | |
5e53dba6 | 762 | AC_LINK_FILES($os_include_dir/bits/os_defines.h, include/bits/os_defines.h) |
e974e9cc BK |
763 | ]) |
764 | ||
765 | ||
b2dad0e3 BK |
766 | dnl |
767 | dnl Check to see if this target can enable the wchar_t parts of libstdc++. | |
8b8ab21c BK |
768 | dnl If --disable-c-mbchar was given, no wchar_t stuff is enabled. (This |
769 | dnl must have been previously checked.) | |
b2dad0e3 | 770 | dnl |
15bcd79a | 771 | dnl Define _GLIBCPP_USE_WCHAR_T if all the bits are found |
7b331228 | 772 | dnl Define HAVE_MBSTATE_T if mbstate_t is not in wchar.h |
b2dad0e3 BK |
773 | dnl |
774 | dnl GLIBCPP_CHECK_WCHAR_T_SUPPORT | |
775 | AC_DEFUN(GLIBCPP_CHECK_WCHAR_T_SUPPORT, [ | |
7b331228 BK |
776 | |
777 | dnl Test wchar.h for mbstate_t, which is needed for char_traits and | |
778 | dnl others even if wchar_t support is not on. | |
779 | AC_MSG_CHECKING([for mbstate_t]) | |
780 | AC_TRY_COMPILE([#include <wchar.h>], | |
781 | [mbstate_t teststate;], | |
782 | have_mbstate_t=yes, have_mbstate_t=no) | |
783 | AC_MSG_RESULT($have_mbstate_t) | |
784 | if test x"$have_mbstate_t" = xyes; then | |
785 | AC_DEFINE(HAVE_MBSTATE_T) | |
786 | fi | |
787 | ||
788 | dnl Sanity check for existence of ISO C99 headers for extended encoding. | |
789 | AC_CHECK_HEADERS(wchar.h, ac_has_wchar_h=yes, ac_has_wchar_h=no) | |
790 | AC_CHECK_HEADER(wctype.h, ac_has_wctype_h=yes, ac_has_wctype_h=no) | |
15bcd79a | 791 | |
7b331228 BK |
792 | dnl Only continue checking if the ISO C99 headers exist and support is on. |
793 | if test x"$ac_has_wchar_h" = xyes && test x"$ac_has_wctype_h" = xyes \ | |
794 | && test x"$enable_c_mbchar" != xno; then | |
795 | ||
796 | dnl Test wchar.h for WCHAR_MIN, WCHAR_MAX, which is needed before | |
797 | dnl numeric_limits can instantiate type_traits<wchar_t> | |
798 | AC_MSG_CHECKING([for WCHAR_MIN and WCHAR_MAX]) | |
799 | AC_TRY_COMPILE([#include <wchar.h>], | |
800 | [int i = WCHAR_MIN; int j = WCHAR_MAX;], | |
801 | has_wchar_minmax=yes, has_wchar_minmax=no) | |
802 | AC_MSG_RESULT($has_wchar_minmax) | |
8b8ab21c | 803 | |
7b331228 BK |
804 | dnl Test wchar.h for WEOF, which is what we use to determine whether |
805 | dnl to specialize for char_traits<wchar_t> or not. | |
806 | AC_MSG_CHECKING([for WEOF]) | |
807 | AC_TRY_COMPILE([ | |
808 | #include <wchar.h> | |
809 | #include <stddef.h>], | |
810 | [wint_t i = WEOF;], | |
811 | has_weof=yes, has_weof=no) | |
812 | AC_MSG_RESULT($has_weof) | |
8b8ab21c | 813 | |
7b331228 BK |
814 | dnl Tests for wide character functions used in char_traits<wchar_t>. |
815 | AC_CHECK_FUNCS(wcslen wmemchr wmemcmp wmemcpy wmemmove wmemset \ | |
816 | wcsrtombs mbsrtowcs, ac_wfuncs=yes, ac_wfuncs=no) | |
8b8ab21c | 817 | |
7b331228 BK |
818 | AC_MSG_CHECKING([for ISO C99 wchar_t support]) |
819 | if test x"$has_weof" = xyes && test x"$has_wchar_minmax" = xyes \ | |
820 | && test x"$ac_wfuncs" = xyes; then | |
821 | ac_isoC99_wchar_t=yes | |
822 | else | |
823 | ac_isoC99_wchar_t=no | |
824 | fi | |
825 | AC_MSG_RESULT($ac_isoC99_wchar_t) | |
8b8ab21c | 826 | |
7b331228 BK |
827 | dnl Use iconv for wchar_t to char conversions. As such, check for |
828 | dnl X/Open Portability Guide, version 2 features (XPG2). | |
829 | AC_CHECK_HEADER(iconv.h, ac_has_iconv_h=yes, ac_has_iconv_h=no) | |
830 | AC_CHECK_HEADER(langinfo.h, ac_has_langinfo_h=yes, ac_has_langinfo_h=no) | |
831 | ||
832 | dnl Check for existence of libiconv.a providing XPG2 wchar_t support. | |
833 | AC_CHECK_LIB(iconv, iconv, libiconv="-liconv") | |
834 | ac_save_LIBS="$LIBS" | |
835 | LIBS="$LIBS $libiconv" | |
836 | ||
837 | AC_CHECK_FUNCS(iconv_open iconv_close iconv nl_langinfo, \ | |
838 | ac_XPG2funcs=yes, ac_XPG2funcs=no) | |
8b8ab21c | 839 | |
7b331228 | 840 | LIBS="$ac_save_LIBS" |
5b20f7a0 | 841 | |
7b331228 BK |
842 | AC_MSG_CHECKING([for XPG2 wchar_t support]) |
843 | if test x"$ac_has_iconv_h" = xyes && test x"$ac_has_langinfo_h" = xyes \ | |
844 | && test x"$ac_XPG2funcs" = xyes; then | |
845 | ac_XPG2_wchar_t=yes | |
846 | else | |
847 | ac_XPG2_wchar_t=no | |
848 | fi | |
849 | AC_MSG_RESULT($ac_XPG2_wchar_t) | |
15bcd79a | 850 | |
7b331228 BK |
851 | dnl At the moment, only enable wchar_t specializations if all the |
852 | dnl above support is present. | |
853 | AC_MSG_CHECKING([for enabled wchar_t specializations]) | |
854 | if test x"$ac_isoC99_wchar_t" = xyes \ | |
855 | && test x"$ac_XPG2_wchar_t" = xyes; then | |
7b331228 BK |
856 | AC_DEFINE(_GLIBCPP_USE_WCHAR_T) |
857 | AC_MSG_RESULT("yes") | |
15bcd79a | 858 | else |
7b331228 | 859 | AC_MSG_RESULT("no") |
15bcd79a | 860 | fi |
15bcd79a | 861 | else |
7b331228 BK |
862 | dnl Wide characters disabled by the user. |
863 | AC_MSG_WARN([wchar_t support disabled.]) | |
b2dad0e3 | 864 | fi |
b2dad0e3 BK |
865 | ]) |
866 | ||
867 | ||
868 | dnl | |
869 | dnl Check to see if this version of GNU C++ is afflicted by bugs in | |
870 | dnl __complex__ float support. | |
871 | dnl | |
872 | dnl Define _GLIBCPP_BUGGY_FLOAT_COMPLEX if buggy. | |
873 | dnl | |
2f103494 BK |
874 | dnl Check to see if this version of GNU C++ is afflicted by bugs in |
875 | dnl __complex__ support.Check for buggy __complex__ that will cause ICE in | |
876 | dnl gcc-2.95.x when using the library, unless we define the default copy | |
877 | dnl ctor in the specializations of complex<>. | |
878 | dnl | |
879 | dnl Define _GLIBCPP_BUGGY_COMPLEX if buggy. | |
880 | dnl GLIBCPP_CHECK_COMPLEX_MATH_COMPILER_SUPPORT | |
881 | AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_COMPILER_SUPPORT, [ | |
b2dad0e3 | 882 | AC_REQUIRE([AC_PROG_CXX]) |
2f103494 BK |
883 | |
884 | AC_MSG_CHECKING([for GNU C++ __complex__ support]) | |
885 | AC_CACHE_VAL(glibcpp_cv_complex, [ | |
886 | AC_LANG_SAVE | |
887 | AC_LANG_CPLUSPLUS | |
888 | AC_TRY_COMPILE([struct dcomplex { __complex__ double x; }; \ | |
8b8ab21c BK |
889 | dcomplex f(const dcomplex& x) { return dcomplex(x); }], \ |
890 | [ dcomplex x; f(x); ], | |
2f103494 BK |
891 | glibcpp_cv_complex=ok, |
892 | glibcpp_cv_complex=buggy | |
893 | ) | |
894 | AC_LANG_RESTORE | |
895 | ]) | |
896 | AC_MSG_RESULT($glibcpp_cv_complex) | |
897 | if test $glibcpp_cv_complex = buggy; then | |
898 | AC_DEFINE(_GLIBCPP_BUGGY_COMPLEX) | |
899 | fi | |
900 | ||
b2dad0e3 BK |
901 | AC_MSG_CHECKING([for GNU C++ __complex__ float support]) |
902 | AC_CACHE_VAL(glibcpp_cv_float_complex, [ | |
903 | AC_LANG_SAVE | |
904 | AC_LANG_CPLUSPLUS | |
905 | rm -f conftest.h | |
906 | cat > conftest.h <<EOB | |
907 | // | |
908 | // Check for buggy __complex__ that causes ICE in most versions of egcs | |
909 | // and gcc-2.95.x on certain platforms (eg., x86-win32). | |
910 | // | |
747dcaf1 | 911 | // See http://gcc.gnu.org/ml/gcc-bugs/1999-07n/msg00845.html for |
b2dad0e3 BK |
912 | // more info on the bug itself. |
913 | // | |
914 | struct | |
915 | float_complex | |
916 | { | |
917 | __complex__ float m_value; | |
918 | float_complex (float = 0.0f, float = 0.0f); | |
919 | float_complex (__complex__ float val) : m_value (val) {} | |
920 | float_complex foo (const float_complex &val) | |
921 | { return float_complex (~val.m_value); } | |
922 | }; | |
923 | EOB | |
924 | AC_TRY_COMPILE([#include "conftest.h"], , | |
925 | glibcpp_cv_float_complex=ok, | |
926 | glibcpp_cv_float_complex=buggy | |
927 | ) | |
928 | AC_LANG_RESTORE | |
929 | ]) | |
930 | AC_MSG_RESULT($glibcpp_cv_float_complex) | |
931 | if test $glibcpp_cv_float_complex = buggy; then | |
932 | AC_DEFINE(_GLIBCPP_BUGGY_FLOAT_COMPLEX) | |
933 | fi | |
934 | ]) | |
935 | ||
936 | ||
b2dad0e3 | 937 | dnl |
8bd636c5 | 938 | dnl Check for special debugging mode; not for production use. |
b2dad0e3 BK |
939 | dnl |
940 | dnl GLIBCPP_ENABLE_DEBUG | |
34791641 | 941 | dnl --enable-debug sets '-ggdb3 -O0'. |
b2dad0e3 BK |
942 | dnl --disable-debug sets '-g' and whatever optimization options the |
943 | dnl compiler can handle. | |
7f586614 | 944 | dnl + --enable-maintainer-mode automatically defaults this to on. |
b2dad0e3 BK |
945 | dnl + Perhaps -D/-U of NDEBUG, DEBUG, DEBUG_ASSERT, ...? |
946 | dnl + Usage: GLIBCPP_ENABLE_DEBUG[(DEFAULT)] | |
947 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
948 | dnl defaults to `no'. | |
949 | AC_DEFUN(GLIBCPP_ENABLE_DEBUG, [dnl | |
950 | define([GLIBCPP_ENABLE_DEBUG_DEFAULT], ifelse($1, yes, yes, no))dnl | |
951 | AC_ARG_ENABLE(debug, | |
952 | changequote(<<, >>)dnl | |
953 | << --enable-debug extra debugging, turn off optimization [default=>>GLIBCPP_ENABLE_DEBUG_DEFAULT], | |
954 | changequote([, ])dnl | |
5780a46b | 955 | [case "${enableval}" in |
b2dad0e3 BK |
956 | yes) enable_debug=yes ;; |
957 | no) enable_debug=no ;; | |
958 | *) AC_MSG_ERROR([Unknown argument to enable/disable extra debugging]) ;; | |
959 | esac], | |
960 | enable_debug=GLIBCPP_ENABLE_DEBUG_DEFAULT)dnl | |
5780a46b | 961 | |
b2dad0e3 | 962 | dnl Option parsed, now set things appropriately |
5780a46b | 963 | case "${enable_debug}" in |
cde28f0d | 964 | yes) |
34791641 | 965 | DEBUG_FLAGS='-O0 -ggdb3' |
6abd2230 | 966 | ;; |
f3b004d8 | 967 | no) |
8b8ab21c | 968 | DEBUG_FLAGS='-g' |
f3b004d8 | 969 | ;; |
b2dad0e3 | 970 | esac |
c470c17d | 971 | AC_SUBST(DEBUG_FLAGS) |
b2dad0e3 BK |
972 | ]) |
973 | ||
974 | ||
dcfa0bc8 PE |
975 | dnl |
976 | dnl Check for "unusual" flags to pass to the compiler while building. | |
977 | dnl | |
978 | dnl GLIBCPP_ENABLE_CXX_FLAGS | |
979 | dnl --enable-cxx-flags='-foo -bar -baz' is a general method for passing | |
980 | dnl experimental flags such as -fhonor-std, -fsquangle, -Dfloat=char, etc. | |
981 | dnl Somehow this same set of flags must be passed when [re]building | |
982 | dnl libgcc. | |
983 | dnl --disable-cxx-flags passes nothing. | |
a9ab8db1 JM |
984 | dnl + See http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00131.html |
985 | dnl http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00284.html | |
986 | dnl http://gcc.gnu.org/ml/libstdc++/2000-q1/msg00035.html | |
dcfa0bc8 | 987 | dnl + Usage: GLIBCPP_ENABLE_CXX_FLAGS(default flags) |
32a4595e PE |
988 | dnl If "default flags" is an empty string (or "none"), the effect is |
989 | dnl the same as --disable or --enable=no. | |
dcfa0bc8 PE |
990 | AC_DEFUN(GLIBCPP_ENABLE_CXX_FLAGS, [dnl |
991 | define([GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], ifelse($1,,, $1))dnl | |
992 | AC_ARG_ENABLE(cxx-flags, | |
993 | changequote(<<, >>)dnl | |
994 | << --enable-cxx-flags=FLAGS pass compiler FLAGS when building library; | |
995 | [default=>>GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], | |
996 | changequote([, ])dnl | |
997 | [case "x$enableval" in | |
5780a46b | 998 | xyes) |
8b8ab21c | 999 | AC_MSG_ERROR([--enable-cxx-flags needs compiler flags as arguments]) ;; |
5780a46b | 1000 | xno|x) |
8b8ab21c | 1001 | enable_cxx_flags='' ;; |
5780a46b | 1002 | *) |
8b8ab21c | 1003 | enable_cxx_flags="$enableval" ;; |
dcfa0bc8 | 1004 | esac], |
5780a46b BK |
1005 | enable_cxx_flags='GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT') |
1006 | ||
32a4595e | 1007 | dnl Thinko on my part during design. This kludge is the workaround. |
5780a46b BK |
1008 | if test "$enable_cxx_flags" = "none"; then |
1009 | enable_cxx_flags=''; | |
1010 | fi | |
1011 | ||
32a4595e PE |
1012 | dnl Run through flags (either default or command-line) and set anything |
1013 | dnl extra (e.g., #defines) that must accompany particular g++ options. | |
dcfa0bc8 PE |
1014 | if test -n "$enable_cxx_flags"; then |
1015 | for f in $enable_cxx_flags; do | |
1016 | case "$f" in | |
991a40fc | 1017 | -fhonor-std) ;; |
dcfa0bc8 PE |
1018 | -*) ;; |
1019 | *) # and we're trying to pass /what/ exactly? | |
1020 | AC_MSG_ERROR([compiler flags start with a -]) ;; | |
1021 | esac | |
1022 | done | |
1023 | fi | |
1024 | EXTRA_CXX_FLAGS="$enable_cxx_flags" | |
1025 | AC_SUBST(EXTRA_CXX_FLAGS) | |
1026 | ]) | |
1027 | ||
1028 | ||
0214010c BK |
1029 | dnl |
1030 | dnl Check for which locale library to use: gnu or generic. | |
1031 | dnl | |
1032 | dnl GLIBCPP_ENABLE_CLOCALE | |
1033 | dnl --enable-clocale=gnu sets config/c_locale_gnu.cc and friends | |
1034 | dnl --enable-clocale=generic sets config/c_locale_generic.cc and friends | |
1035 | dnl | |
1036 | dnl default is generic | |
1037 | dnl | |
1038 | AC_DEFUN(GLIBCPP_ENABLE_CLOCALE, [ | |
1039 | AC_MSG_CHECKING([for clocale to use]) | |
1040 | AC_ARG_ENABLE(clocale, | |
1041 | [ --enable-clocale enable model for target locale package. | |
1042 | --enable-clocale=MODEL use MODEL target-speific locale package. [default=generic] | |
1043 | ], | |
1044 | if test x$enable_clocale = xno; then | |
1045 | enable_clocale=generic | |
1046 | fi, | |
1047 | enable_clocale=generic) | |
1048 | ||
1049 | enable_clocale_flag=$enable_clocale | |
1050 | ||
1051 | dnl Check if a valid locale package | |
1052 | case x${enable_clocale_flag} in | |
1053 | xgnu) | |
1054 | CLOCALE_H=config/c_locale_gnu.h | |
1055 | CLOCALE_CC=config/c_locale_gnu.cc | |
1056 | AC_MSG_RESULT(gnu) | |
1057 | ;; | |
1058 | xgeneric) | |
1059 | CLOCALE_H=config/c_locale_generic.h | |
1060 | CLOCALE_CC=config/c_locale_generic.cc | |
1061 | AC_MSG_RESULT(generic) | |
1062 | ;; | |
1063 | *) | |
1064 | echo "$enable_clocale is an unknown locale package" 1>&2 | |
1065 | exit 1 | |
1066 | ;; | |
1067 | esac | |
1068 | ||
1069 | AC_LINK_FILES($CLOCALE_H, include/bits/c++locale.h) | |
1070 | AC_LINK_FILES($CLOCALE_CC, src/c++locale.cc) | |
1071 | ]) | |
1072 | ||
1073 | ||
b2dad0e3 | 1074 | dnl |
8bd636c5 | 1075 | dnl Check for which I/O library to use: libio, or something specific. |
b2dad0e3 BK |
1076 | dnl |
1077 | dnl GLIBCPP_ENABLE_CSTDIO | |
1078 | dnl --enable-cstdio=libio sets config/c_io_libio.h and friends | |
1079 | dnl | |
8e2d9424 | 1080 | dnl default is stdio |
b2dad0e3 BK |
1081 | dnl |
1082 | AC_DEFUN(GLIBCPP_ENABLE_CSTDIO, [ | |
1083 | AC_MSG_CHECKING([for cstdio to use]) | |
1084 | AC_ARG_ENABLE(cstdio, | |
36e40658 BK |
1085 | [ --enable-cstdio enable stdio for target io package. |
1086 | --enable-cstdio=LIB use LIB target-speific io package. [default=stdio] | |
1087 | ], | |
b2dad0e3 | 1088 | if test x$enable_cstdio = xno; then |
8e2d9424 | 1089 | enable_cstdio=stdio |
b2dad0e3 | 1090 | fi, |
8e2d9424 | 1091 | enable_cstdio=stdio) |
b2dad0e3 BK |
1092 | |
1093 | enable_cstdio_flag=$enable_cstdio | |
1094 | ||
8b8ab21c | 1095 | dnl Check if a valid I/O package |
b2dad0e3 | 1096 | case x${enable_cstdio_flag} in |
e26cb7ab | 1097 | xlibio) |
dd75251f | 1098 | CSTDIO_H=config/c_io_libio.h |
c0a26060 BK |
1099 | BASIC_FILE_H=config/basic_file_libio.h |
1100 | BASIC_FILE_CC=config/basic_file_libio.cc | |
dd75251f BK |
1101 | AC_MSG_RESULT(libio) |
1102 | ||
1103 | # see if we are on a system with libio native (ie, linux) | |
1104 | AC_CHECK_HEADER(libio.h, has_libio=yes, has_libio=no) | |
1105 | ||
1106 | # Need to check and see what version of glibc is being used. If | |
1107 | # it's not glibc-2.2 or higher, then we'll need to go ahead and | |
1108 | # compile most of libio for linux systems. | |
1109 | if test x$has_libio = x"yes"; then | |
1110 | case "$target" in | |
1111 | *-*-linux*) | |
8b8ab21c BK |
1112 | AC_MSG_CHECKING([for glibc version >= 2.2]) |
1113 | AC_EGREP_CPP([ok], [ | |
1114 | #include <features.h> | |
1115 | #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2) | |
1116 | ok | |
1117 | #endif | |
1118 | ], glibc_satisfactory=yes, glibc_satisfactory=no) | |
1119 | AC_MSG_RESULT($glibc_satisfactory) | |
1120 | ;; | |
dd75251f BK |
1121 | esac |
1122 | ||
8b8ab21c | 1123 | # XXX at the moment, admit defeat and force the recompilation |
f133a43e | 1124 | # XXX of glibc even on glibc-2.2 systems, because libio is not synched. |
8b8ab21c BK |
1125 | glibc_satisfactory=no |
1126 | ||
1127 | if test x$glibc_satisfactory = x"yes"; then | |
1128 | need_libio=no | |
8b8ab21c BK |
1129 | need_wlibio=no |
1130 | else | |
1131 | need_libio=yes | |
8b8ab21c BK |
1132 | # bkoz XXX need to add checks to enable this |
1133 | # pme XXX here's a first pass at such a check | |
1134 | if test x$enable_c_mbchar != xno; then | |
1135 | need_wlibio=yes | |
1136 | else | |
1137 | need_wlibio=no | |
1138 | fi | |
1139 | fi | |
dd75251f | 1140 | |
dd75251f | 1141 | else |
5bd17d39 | 1142 | # Using libio, but <libio.h> doesn't exist on the target system. . . |
8b8ab21c | 1143 | need_libio=yes |
8b8ab21c BK |
1144 | # bkoz XXX need to add checks to enable this |
1145 | # pme XXX here's a first pass at such a check | |
1146 | if test x$enable_c_mbchar != xno; then | |
1147 | need_wlibio=yes | |
1148 | else | |
1149 | need_wlibio=no | |
1150 | fi | |
dd75251f BK |
1151 | fi |
1152 | ;; | |
e26cb7ab MM |
1153 | xstdio | x | xno | xnone | xyes) |
1154 | # default | |
9717c75c | 1155 | CSTDIO_H=config/c_io_stdio.h |
c0a26060 BK |
1156 | BASIC_FILE_H=config/basic_file_stdio.h |
1157 | BASIC_FILE_CC=config/basic_file_stdio.cc | |
9717c75c | 1158 | AC_MSG_RESULT(stdio) |
dd75251f | 1159 | |
e26cb7ab | 1160 | # We're not using stdio. |
dd75251f | 1161 | need_libio=no |
e26cb7ab | 1162 | need_wlibio=no |
dd75251f BK |
1163 | ;; |
1164 | *) | |
1165 | echo "$enable_cstdio is an unknown io package" 1>&2 | |
1166 | exit 1 | |
1167 | ;; | |
b2dad0e3 | 1168 | esac |
5e53dba6 | 1169 | AC_LINK_FILES($CSTDIO_H, include/bits/c++io.h) |
c0a26060 BK |
1170 | AC_LINK_FILES($BASIC_FILE_H, include/bits/basic_file_model.h) |
1171 | AC_LINK_FILES($BASIC_FILE_CC, src/basic_file.cc) | |
8901ac21 BK |
1172 | |
1173 | # 2000-08-04 bkoz hack | |
1174 | CCODECVT_C=config/c_io_libio_codecvt.c | |
1175 | AC_LINK_FILES($CCODECVT_C, libio/c_codecvt.c) | |
1176 | # 2000-08-04 bkoz hack | |
8b8ab21c | 1177 | |
85a011b0 PE |
1178 | AM_CONDITIONAL(GLIBCPP_BUILD_LIBIO, |
1179 | test "$need_libio" = yes || test "$need_wlibio" = yes) | |
b2dad0e3 | 1180 | AM_CONDITIONAL(GLIBCPP_NEED_LIBIO, test "$need_libio" = yes) |
20427c6b | 1181 | AM_CONDITIONAL(GLIBCPP_NEED_WLIBIO, test "$need_wlibio" = yes) |
c4d3f801 | 1182 | if test "$need_libio" = yes || test "$need_wlibio" = yes; then |
4c07386b | 1183 | libio_la=../libio/libio.la |
c4d3f801 | 1184 | else |
4c07386b | 1185 | libio_la= |
c4d3f801 MM |
1186 | fi |
1187 | AC_SUBST(libio_la) | |
b2dad0e3 BK |
1188 | ]) |
1189 | ||
1190 | ||
1191 | dnl | |
8bd636c5 | 1192 | dnl Check for which threading library to use. |
b2dad0e3 BK |
1193 | dnl |
1194 | dnl GLIBCPP_ENABLE_THREADS | |
1195 | dnl --enable-threads=posix sets config/threads-posix.h et. al. | |
1196 | dnl | |
8b8ab21c BK |
1197 | dnl Default is no threads, which also disables _IO_MTSAFE_IO in |
1198 | dnl libio. Any actual thread package will enable it. | |
b2dad0e3 BK |
1199 | dnl |
1200 | AC_DEFUN(GLIBCPP_ENABLE_THREADS, [ | |
1201 | dnl Note this comes from the gcc/config.in and libjava/config.in | |
1202 | dnl Efforts should be made to keep this in sync. | |
1203 | AC_MSG_CHECKING([for threads package to use]) | |
1204 | AC_ARG_ENABLE(threads, | |
36e40658 BK |
1205 | [ --enable-threads enable thread usage for target GCC. |
1206 | --enable-threads=LIB use LIB thread package for target GCC. [default=no] | |
1207 | ], | |
b2dad0e3 BK |
1208 | if test x$enable_threads = xno; then |
1209 | enable_threads='' | |
1210 | fi, | |
1211 | enable_threads='') | |
1212 | ||
1213 | enable_threads_flag=$enable_threads | |
1214 | ||
1215 | dnl Check if a valid thread package | |
1216 | case x${enable_threads_flag} in | |
8b8ab21c BK |
1217 | x | xno | xnone) |
1218 | # No threads | |
1219 | target_thread_file='single' | |
1220 | ;; | |
1221 | xyes) | |
1222 | # default | |
d0941a31 | 1223 | target_thread_file='posix' |
8b8ab21c BK |
1224 | ;; |
1225 | xdecosf1 | xirix | xmach | xos2 | xposix | xpthreads | xsingle | \ | |
1226 | xsolaris | xwin32 | xdce | xvxworks) | |
1227 | target_thread_file=$enable_threads_flag | |
1228 | ;; | |
1229 | *) | |
1230 | echo "$enable_threads is an unknown thread package" 1>&2 | |
1231 | exit 1 | |
1232 | ;; | |
b2dad0e3 BK |
1233 | esac |
1234 | ||
1235 | dnl Check for thread package actually supported in libstdc++ | |
e974e9cc | 1236 | THREADH= |
b2dad0e3 BK |
1237 | case "$target_thread_file" in |
1238 | no | none | single) | |
e974e9cc | 1239 | THREADH=threads-no.h |
b2dad0e3 BK |
1240 | ;; |
1241 | posix | pthreads) | |
e974e9cc | 1242 | THREADH=threads-posix.h |
b2dad0e3 BK |
1243 | ;; |
1244 | decosf1 | irix | mach | os2 | solaris | win32 | dce | vxworks) | |
1245 | AC_MSG_ERROR(thread package $THREADS not yet supported) | |
1246 | ;; | |
1247 | *) | |
d0941a31 | 1248 | AC_MSG_ERROR($THREADS is an unsupported/unknown thread package) |
b2dad0e3 BK |
1249 | ;; |
1250 | esac | |
e974e9cc | 1251 | AC_MSG_RESULT($THREADH) |
b2dad0e3 | 1252 | |
5e53dba6 | 1253 | AC_LINK_FILES(config/$THREADH, include/bits/c++threads.h) |
8b8ab21c BK |
1254 | if test $THREADH != threads-no.h; then |
1255 | AC_DEFINE(_GLIBCPP_USE_THREADS) | |
1256 | fi | |
b2dad0e3 BK |
1257 | ]) |
1258 | ||
1259 | ||
52a11cbf RH |
1260 | dnl |
1261 | dnl Check for exception handling support. If an explicit enable/disable | |
1262 | dnl sjlj exceptions is given, we don't have to detect. Otherwise the | |
1263 | dnl target may or may not support call frame exceptions. | |
1264 | dnl | |
1265 | dnl GLIBCPP_ENABLE_SJLJ_EXCEPTIONS | |
1266 | dnl --enable-sjlj-exceptions forces the use of builtin setjmp. | |
1267 | dnl --disable-sjlj-exceptions forces the use of call frame unwinding. | |
1268 | dnl | |
1269 | dnl Define _GLIBCPP_SJLJ_EXCEPTIONS if the compiler is configured for it. | |
1270 | dnl | |
1271 | AC_DEFUN(GLIBCPP_ENABLE_SJLJ_EXCEPTIONS, [ | |
1272 | AC_MSG_CHECKING([for exception model to use]) | |
1273 | AC_LANG_SAVE | |
1274 | AC_LANG_CPLUSPLUS | |
1275 | AC_ARG_ENABLE(sjlj-exceptions, | |
1276 | [ --enable-sjlj-exceptions force use of builtin_setjmp for exceptions], | |
1277 | [:], | |
1278 | [dnl Botheration. Now we've got to detect the exception model. | |
1279 | dnl Link tests against libgcc.a are problematic since -- at least | |
1280 | dnl as of this writing -- we've not been given proper -L bits for | |
1281 | dnl single-tree newlib and libgloss. | |
1282 | dnl | |
1283 | dnl This is what AC_TRY_COMPILE would do if it didn't delete the | |
1284 | dnl conftest files before we got a change to grep them first. | |
1285 | cat > conftest.$ac_ext << EOF | |
1286 | [#]line __oline__ "configure" | |
1287 | struct S { ~S(); }; | |
1288 | void bar(); | |
1289 | void foo() | |
1290 | { | |
1291 | S s; | |
1292 | bar(); | |
1293 | } | |
1294 | EOF | |
1295 | old_CXXFLAGS="$CXXFLAGS" | |
1296 | CXXFLAGS=-S | |
1297 | if AC_TRY_EVAL(ac_compile); then | |
1298 | if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then | |
1299 | enable_sjlj_exceptions=yes | |
1300 | elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then | |
1301 | enable_sjlj_exceptions=no | |
1302 | fi | |
1303 | fi | |
1304 | CXXFLAGS="$old_CXXFLAGS" | |
1305 | rm -f conftest*]) | |
1306 | if test x$enable_sjlj_exceptions = xyes; then | |
1307 | AC_DEFINE(_GLIBCPP_SJLJ_EXCEPTIONS, 1, | |
1308 | [Define if the compiler is configured for setjmp/longjmp exceptions.]) | |
1309 | ac_exception_model_name=sjlj | |
1310 | elif test x$enable_sjlj_exceptions = xno; then | |
1311 | ac_exception_model_name="call frame" | |
1312 | else | |
1313 | AC_MSG_ERROR([unable to detect exception model]) | |
1314 | fi | |
1315 | AC_LANG_RESTORE | |
1316 | AC_MSG_RESULT($ac_exception_model_name) | |
1317 | ]) | |
1318 | ||
1319 | ||
b2dad0e3 | 1320 | dnl |
8bd636c5 | 1321 | dnl Check for template specializations for the 'long long' type extension. |
b2dad0e3 BK |
1322 | dnl |
1323 | dnl GLIBCPP_ENABLE_LONG_LONG | |
1324 | dnl --enable-long-long defines _GLIBCPP_USE_LONG_LONG | |
1325 | dnl --disable-long-long leaves _GLIBCPP_USE_LONG_LONG undefined | |
1326 | dnl + Usage: GLIBCPP_ENABLE_LONG_LONG[(DEFAULT)] | |
1327 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
1328 | dnl defaults to `no'. | |
0137be2d | 1329 | dnl + If 'long long' stuff is not available, ignores DEFAULT and sets `no'. |
b2dad0e3 BK |
1330 | dnl |
1331 | dnl GLIBCPP_ENABLE_LONG_LONG | |
1332 | AC_DEFUN(GLIBCPP_ENABLE_LONG_LONG, [dnl | |
1333 | define([GLIBCPP_ENABLE_LONG_LONG_DEFAULT], ifelse($1, yes, yes, no))dnl | |
30ff6342 | 1334 | |
b2dad0e3 BK |
1335 | AC_ARG_ENABLE(long-long, |
1336 | changequote(<<, >>)dnl | |
d0d88ce3 | 1337 | <<--enable-long-long turns on 'long long' [default=>>GLIBCPP_ENABLE_LONG_LONG_DEFAULT], |
b2dad0e3 BK |
1338 | changequote([, ])dnl |
1339 | [case "$enableval" in | |
1340 | yes) enable_long_long=yes ;; | |
1341 | no) enable_long_long=no ;; | |
1342 | *) AC_MSG_ERROR([Unknown argument to enable/disable long long]) ;; | |
1343 | esac], | |
1344 | enable_long_long=GLIBCPP_ENABLE_LONG_LONG_DEFAULT)dnl | |
f4c79fef BK |
1345 | |
1346 | # Allow use of os-dependent settings, so that macros that turn on | |
1347 | # C99 capabilities can be defined and used in a consistent way. | |
1348 | OS_INC_PATH=${srcdir}/$os_include_dir | |
1349 | ac_test_CFLAGS="${CFLAGS+set}" | |
1350 | ac_save_CFLAGS="$CFLAGS" | |
1351 | CFLAGS="-I$OS_INC_PATH" | |
30ff6342 | 1352 | |
f4c79fef | 1353 | # Check for the existence of functions used if long long is enabled. |
30ff6342 BK |
1354 | AC_CHECK_FUNC(strtoll,,ac_strtoll=no) |
1355 | AC_CHECK_FUNC(strtoull,,ac_strtoull=no) | |
1356 | ||
f4c79fef BK |
1357 | # Check for lldiv_t, et. al. |
1358 | AC_MSG_CHECKING([for lldiv_t declaration]) | |
1359 | AC_CACHE_VAL(glibcpp_lldiv_t_use, [ | |
1360 | AC_TRY_COMPILE([#include <bits/os_defines.h> | |
4c07386b | 1361 | #include <stdlib.h>], |
f4c79fef BK |
1362 | [ lldiv_t mydivt;], |
1363 | [glibcpp_lldiv_t_use=yes], [glibcpp_lldiv_t_use=no]) | |
1364 | ]) | |
1365 | AC_MSG_RESULT($glibcpp_lldiv_t_use) | |
1366 | if test x$glibcpp_lldiv_t_use = x"yes"; then | |
a767e383 | 1367 | AC_DEFINE(HAVE_LLDIV_T) |
f4c79fef BK |
1368 | fi |
1369 | ||
3840fa2a | 1370 | AC_MSG_CHECKING([for enabled long long]) |
30ff6342 | 1371 | if test x"$ac_strtoll" = xno || test x"$ac_strtoull" = xno; then |
3840fa2a BK |
1372 | enable_long_long=no; |
1373 | fi; | |
d0d88ce3 | 1374 | AC_MSG_RESULT($enable_long_long) |
3840fa2a | 1375 | |
f4c79fef | 1376 | # Option parsed, now set things appropriately |
dcc41852 BK |
1377 | if test x"$enable_long_long" = xyes; then |
1378 | AC_DEFINE(_GLIBCPP_USE_LONG_LONG) | |
1379 | fi | |
4c07386b | 1380 | |
f4c79fef BK |
1381 | # Reset CFLAGS |
1382 | CFLAGS="$ac_save_CFLAGS" | |
b2dad0e3 BK |
1383 | ]) |
1384 | ||
1385 | ||
99246c90 | 1386 | dnl |
e3123ab3 BK |
1387 | dnl Check for what kind of C headers to use. |
1388 | dnl | |
1389 | dnl GLIBCPP_ENABLE_CHEADERS | |
1390 | dnl --enable-cheaders= [does stuff]. | |
1391 | dnl --disable-cheaders [does not do anything, really]. | |
1392 | dnl + This will eventually need to be 'c_shadow' by default. | |
1393 | dnl + Usage: GLIBCPP_ENABLE_CHEADERS[(DEFAULT)] | |
1394 | dnl Where DEFAULT is either `c' or `c_std' or 'c_shadow'. | |
1395 | dnl If ommitted, it defaults to `c_std'. | |
1396 | AC_DEFUN(GLIBCPP_ENABLE_CHEADERS, [dnl | |
1397 | define([GLIBCPP_ENABLE_CHEADERS_DEFAULT], ifelse($1, c_std, c_std, c_std))dnl | |
1398 | AC_MSG_CHECKING([for c header strategy to use]) | |
1399 | AC_ARG_ENABLE(cheaders, | |
99246c90 | 1400 | changequote(<<, >>)dnl |
e3123ab3 BK |
1401 | << --enable-cheaders construct "C" header files for |
1402 | g++ [default=>>GLIBCPP_ENABLE_CHEADERS_DEFAULT], | |
5780a46b BK |
1403 | changequote([, ]) |
1404 | [case "$enableval" in | |
e3123ab3 | 1405 | c) |
9b8fd32c | 1406 | enable_cheaders=c |
8b8ab21c | 1407 | ;; |
e3123ab3 | 1408 | c_std) |
9b8fd32c | 1409 | enable_cheaders=c_std |
8b8ab21c | 1410 | ;; |
e3123ab3 | 1411 | c_shadow) |
9b8fd32c | 1412 | enable_cheaders=c_shadow |
e3123ab3 BK |
1413 | ;; |
1414 | *) AC_MSG_ERROR([Unknown argument to enable/disable "C" headers]) | |
8b8ab21c | 1415 | ;; |
5780a46b | 1416 | esac], |
e3123ab3 BK |
1417 | enable_cheaders=GLIBCPP_ENABLE_CHEADERS_DEFAULT) |
1418 | AC_MSG_RESULT($enable_cheaders) | |
5780a46b BK |
1419 | |
1420 | dnl Option parsed, now set things appropriately | |
e3123ab3 BK |
1421 | case "$enable_cheaders" in |
1422 | c_shadow) | |
8b8ab21c | 1423 | CSHADOW_FLAGS="-fno-builtin" |
e3123ab3 | 1424 | C_INCLUDE_DIR='${top_srcdir}/include/c_shadow' |
0517cb99 | 1425 | AC_DEFINE(_GLIBCPP_USE_SHADOW_HEADERS) |
8b8ab21c | 1426 | ;; |
e3123ab3 BK |
1427 | c_std) |
1428 | CSHADOW_FLAGS="" | |
1429 | C_INCLUDE_DIR='${top_srcdir}/include/c_std' | |
1430 | ;; | |
1431 | c) | |
8b8ab21c BK |
1432 | CSHADOW_FLAGS="" |
1433 | C_INCLUDE_DIR='${top_srcdir}/include/c' | |
99246c90 | 1434 | ;; |
5780a46b | 1435 | esac |
5b80666b | 1436 | |
e466dc8a BK |
1437 | AC_SUBST(CSHADOW_FLAGS) |
1438 | AC_SUBST(C_INCLUDE_DIR) | |
e3123ab3 | 1439 | AM_CONDITIONAL(GLIBCPP_USE_CSHADOW, test "$enable_cheaders" = c_shadow) |
99246c90 | 1440 | ]) |
b2dad0e3 | 1441 | |
8b8ab21c BK |
1442 | |
1443 | dnl | |
1444 | dnl Check for wide character support. Has the same effect as the option | |
1445 | dnl in gcc's configure, but in a form that autoconf can mess with. | |
1446 | dnl | |
1447 | dnl GLIBCPP_ENABLE_C_MBCHAR | |
1448 | dnl --enable-c-mbchar requests all the wchar_t stuff. | |
1449 | dnl --disable-c-mbchar doesn't. | |
1450 | dnl + Usage: GLIBCPP_ENABLE_C_MBCHAR[(DEFAULT)] | |
1451 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
1452 | dnl defaults to `no'. | |
1453 | AC_DEFUN(GLIBCPP_ENABLE_C_MBCHAR, [dnl | |
1454 | define([GLIBCPP_ENABLE_C_MBCHAR_DEFAULT], ifelse($1, yes, yes, no))dnl | |
1455 | AC_ARG_ENABLE(c-mbchar, | |
1456 | changequote(<<, >>)dnl | |
1457 | << --enable-c-mbchar enable multibyte (wide) characters [default=>>GLIBCPP_ENABLE_C_MBCHAR_DEFAULT], | |
1458 | changequote([, ])dnl | |
1459 | [case "$enableval" in | |
1460 | yes) enable_c_mbchar=yes ;; | |
1461 | no) enable_c_mbchar=no ;; | |
1462 | *) AC_MSG_ERROR([Unknown argument to enable/disable c-mbchar]) ;; | |
1463 | esac], | |
1464 | enable_c_mbchar=GLIBCPP_ENABLE_C_MBCHAR_DEFAULT)dnl | |
1465 | dnl Option parsed, now other scripts can test enable_c_mbchar for yes/no. | |
1466 | ]) | |
1467 | ||
1468 | ||
e466dc8a BK |
1469 | dnl |
1470 | dnl Set up *_INCLUDES and *_INCLUDE_DIR variables for all sundry Makefile.am's. | |
1471 | dnl | |
1472 | dnl GLIBCPP_INCLUDE_DIR | |
1473 | dnl C_INCLUDE_DIR | |
1474 | dnl TOPLEVEL_INCLUDES | |
1475 | dnl LIBMATH_INCLUDES | |
1476 | dnl LIBSUPCXX_INCLUDES | |
1477 | dnl LIBIO_INCLUDES | |
1478 | dnl CSHADOW_INCLUDES | |
1479 | dnl | |
1480 | dnl GLIBCPP_EXPORT_INCLUDE | |
1481 | AC_DEFUN(GLIBCPP_EXPORT_INCLUDES, [ | |
1482 | # Root level of the include sources. | |
1483 | GLIBCPP_INCLUDE_DIR='$(top_srcdir)/include' | |
1484 | ||
1485 | # Can either use include/c or include/c_std to grab "C" headers. This | |
1486 | # variable is set to the include directory currently in use. | |
e3123ab3 | 1487 | # set with C_INCLUDE_DIR in GLIBCPP_ENABLE_CHEADERS |
e466dc8a | 1488 | |
9f935979 BK |
1489 | # Passed down for canadian crosses. |
1490 | if test x"$CANADIAN" = xyes; then | |
1491 | TOPLEVEL_INCLUDES='-I$(includedir)' | |
1492 | fi | |
e466dc8a BK |
1493 | |
1494 | LIBMATH_INCLUDES='-I$(top_srcdir)/libmath' | |
1495 | ||
1496 | LIBSUPCXX_INCLUDES='-I$(top_srcdir)/libsupc++' | |
1497 | ||
1498 | #if GLIBCPP_NEED_LIBIO | |
1499 | LIBIO_INCLUDES='-I$(top_builddir)/libio -I$(top_srcdir)/libio' | |
1500 | #else | |
1501 | #LIBIO_INCLUDES='-I$(top_srcdir)/libio' | |
1502 | #endif | |
1503 | ||
1504 | #if GLIBCPP_USE_CSHADOW | |
1505 | # CSHADOW_INCLUDES='-I$(GLIBCPP_INCLUDE_DIR)/std -I$(C_INCLUDE_DIR) \ | |
1506 | # -I$(top_blddir)/cshadow' | |
1507 | #else | |
a40ba78e | 1508 | CSTD_INCLUDES='-I$(GLIBCPP_INCLUDE_DIR)/std -I$(C_INCLUDE_DIR)' |
e466dc8a BK |
1509 | #endif |
1510 | ||
1511 | # Now, export this to all the little Makefiles.... | |
1512 | AC_SUBST(GLIBCPP_INCLUDE_DIR) | |
1513 | AC_SUBST(TOPLEVEL_INCLUDES) | |
1514 | AC_SUBST(LIBMATH_INCLUDES) | |
1515 | AC_SUBST(LIBSUPCXX_INCLUDES) | |
1516 | AC_SUBST(LIBIO_INCLUDES) | |
a40ba78e | 1517 | AC_SUBST(CSTD_INCLUDES) |
e466dc8a BK |
1518 | ]) |
1519 | ||
1520 | ||
1521 | dnl | |
1522 | dnl Set up *_FLAGS and *FLAGS variables for all sundry Makefile.am's. | |
1523 | dnl | |
1524 | AC_DEFUN(GLIBCPP_EXPORT_FLAGS, [ | |
1525 | # Optimization flags that are probably a good idea for thrill-seekers. Just | |
1526 | # uncomment the lines below and make, everything else is ready to go... | |
1527 | # OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc | |
1528 | OPTIMIZE_CXXFLAGS= | |
1529 | AC_SUBST(OPTIMIZE_CXXFLAGS) | |
1530 | ||
1531 | WARN_FLAGS='-Wall -Wno-format -W -Wwrite-strings -Winline' | |
1532 | AC_SUBST(WARN_FLAGS) | |
1533 | ]) | |
1534 | ||
72ed2836 | 1535 | dnl |
43ba4a58 BK |
1536 | dnl GLIBCPP_EXPORT_INSTALL_INFO |
1537 | dnl calculates gxx_install_dir | |
72ed2836 BK |
1538 | dnl exports glibcpp_toolexecdir |
1539 | dnl exports glibcpp_toolexeclibdir | |
1540 | dnl | |
1541 | dnl Assumes cross_compiling bits already done, and with_cross_host in | |
1542 | dnl particular | |
43ba4a58 | 1543 | dnl |
72ed2836 | 1544 | dnl GLIBCPP_EXPORT_INSTALL_INFO |
43ba4a58 BK |
1545 | AC_DEFUN(GLIBCPP_EXPORT_INSTALL_INFO, [ |
1546 | ||
72ed2836 BK |
1547 | glibcpp_toolexecdir=no |
1548 | glibcpp_toolexeclibdir=no | |
1549 | ||
43ba4a58 BK |
1550 | AC_MSG_CHECKING([for interface version number]) |
1551 | libstdcxx_interface=$INTERFACE | |
1552 | AC_MSG_RESULT($libstdcxx_interface) | |
1553 | ||
1554 | # Process the option --with-gxx-include-dir=<path to include-files directory> | |
1555 | AC_MSG_CHECKING([for --with-gxx-include-dir]) | |
1556 | AC_ARG_WITH(gxx-include-dir, | |
1557 | [ --with-gxx-include-dir the installation directory for include files], | |
1558 | [case "${withval}" in | |
1559 | yes) | |
1560 | AC_MSG_ERROR(Missing directory for --with-gxx-include-dir) | |
1561 | gxx_include_dir=no | |
1562 | ;; | |
1563 | no) | |
1564 | gxx_include_dir=no | |
1565 | ;; | |
1566 | *) | |
1567 | gxx_include_dir=${withval} | |
1568 | ;; | |
1569 | esac], [gxx_include_dir=no]) | |
1570 | AC_MSG_RESULT($gxx_include_dir) | |
1571 | ||
1572 | # Process the option "--enable-version-specific-runtime-libs" | |
1573 | AC_MSG_CHECKING([for --enable-version-specific-runtime-libs]) | |
1574 | AC_ARG_ENABLE(version-specific-runtime-libs, | |
1575 | [ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ], | |
1576 | [ version_specific_libs=yes | |
1577 | # Need the gcc compiler version to know where to install libraries | |
1578 | # and header files if --enable-version-specific-runtime-libs option | |
1579 | # is selected. | |
1580 | changequote(,)dnl | |
72ed2836 BK |
1581 | gcc_version_trigger=${srcdir}/../gcc/version.c |
1582 | gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'` | |
1583 | gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'` | |
1584 | gxx_include_dir='$(libdir)/gcc-lib/$(target_alias)/'${gcc_version}/include/g++ | |
1585 | glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)' | |
1586 | glibcpp_toolexeclibdir='$(toolexecdir)/'${gcc_version} | |
43ba4a58 | 1587 | changequote([,])dnl |
43ba4a58 BK |
1588 | ],version_specific_libs=no) |
1589 | AC_MSG_RESULT($version_specific_libs) | |
1590 | ||
72ed2836 | 1591 | # Default case for install directory for include files. |
43ba4a58 | 1592 | if test x"$version_specific_libs" = x"no" \ |
c53cf0fe | 1593 | && test x"$gxx_include_dir" = x"no"; then |
72ed2836 BK |
1594 | gxx_include_dir='$(prefix)'/include/g++-${libstdcxx_interface} |
1595 | fi | |
1596 | ||
1597 | # Calculate glibcpp_toolexecdir, glibcpp_toolexeclibdir | |
1598 | # Install a library built with a cross compiler in tooldir, not libdir. | |
1599 | if test x"$glibcpp_toolexecdir" = x"no"; then | |
729338bb | 1600 | if test -n "$with_cross_host" && test x"$with_cross_host" != x"no"; then |
72ed2836 BK |
1601 | glibcpp_toolexecdir='$(exec_prefix)/$(target_alias)' |
1602 | glibcpp_toolexeclibdir='$(toolexecdir)/lib$(MULTISUBDIR)' | |
1603 | else | |
1604 | glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)' | |
1605 | glibcpp_toolexeclibdir='$(libdir)$(MULTISUBDIR)' | |
1606 | fi | |
43ba4a58 | 1607 | fi |
72ed2836 BK |
1608 | |
1609 | AC_MSG_CHECKING([for install location]) | |
43ba4a58 | 1610 | AC_MSG_RESULT($gxx_include_dir) |
72ed2836 | 1611 | |
43ba4a58 | 1612 | AC_SUBST(gxx_include_dir) |
72ed2836 BK |
1613 | AC_SUBST(glibcpp_toolexecdir) |
1614 | AC_SUBST(glibcpp_toolexeclibdir) | |
43ba4a58 BK |
1615 | ]) |
1616 | ||
1617 | ||
af9fe0d1 BK |
1618 | # Check whether LC_MESSAGES is available in <locale.h>. |
1619 | # Ulrich Drepper <drepper@cygnus.com>, 1995. | |
1620 | # | |
1621 | # This file file be copied and used freely without restrictions. It can | |
1622 | # be used in projects which are not available under the GNU Public License | |
1623 | # but which still want to provide support for the GNU gettext functionality. | |
1624 | # Please note that the actual code is *not* freely available. | |
1625 | ||
1626 | # serial 1 | |
1627 | ||
819004bb BK |
1628 | AC_DEFUN(AC_LC_MESSAGES, [ |
1629 | AC_CHECK_HEADER(locale.h, [ | |
af9fe0d1 BK |
1630 | AC_CACHE_CHECK([for LC_MESSAGES], ac_cv_val_LC_MESSAGES, |
1631 | [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES], | |
1632 | ac_cv_val_LC_MESSAGES=yes, ac_cv_val_LC_MESSAGES=no)]) | |
1633 | if test $ac_cv_val_LC_MESSAGES = yes; then | |
1634 | AC_DEFINE(HAVE_LC_MESSAGES) | |
1635 | fi | |
819004bb BK |
1636 | ]) |
1637 | ]) | |
af9fe0d1 BK |
1638 | |
1639 | ||
1640 | # Check for functions in math library. | |
1641 | # Ulrich Drepper <drepper@cygnus.com>, 1998. | |
1642 | # | |
1643 | # This file can be copied and used freely without restrictions. It can | |
1644 | # be used in projects which are not available under the GNU Public License | |
1645 | # but which still want to provide support for the GNU gettext functionality. | |
1646 | # Please note that the actual code is *not* freely available. | |
1647 | ||
1648 | # serial 1 | |
1649 | ||
1650 | dnl AC_REPLACE_MATHFUNCS(FUNCTION...) | |
1651 | AC_DEFUN(AC_REPLACE_MATHFUNCS, | |
1652 | [AC_CHECK_FUNCS([$1], , [LIBMATHOBJS="$LIBMATHOBJS ${ac_func}.lo"]) | |
1653 | AC_SUBST(LIBMATHOBJS)dnl | |
1654 | ]) | |
1655 | ||
1656 | ||
1657 | # Check for string functions. | |
1658 | # Ulrich Drepper <drepper@cygnus.com>, 1998. | |
1659 | # | |
1660 | # This file can be copied and used freely without restrictions. It can | |
1661 | # be used in projects which are not available under the GNU Public License | |
1662 | # but which still want to provide support for the GNU gettext functionality. | |
1663 | # Please note that the actual code is *not* freely available. | |
1664 | ||
1665 | # serial 1 | |
1666 | ||
1667 | dnl AC_REPLACE_STRINGFUNCS(FUNCTION...) | |
1668 | AC_DEFUN(AC_REPLACE_STRINGFUNCS, | |
1669 | [AC_CHECK_FUNCS([$1], , [LIBSTRINGOBJS="$LIBSTRINGOBJS ${ac_func}.lo"]) | |
1670 | AC_SUBST(LIBSTRINGOBJS)dnl | |
1671 | ]) | |
29bd52c8 PE |
1672 | |
1673 | ||
1674 | dnl This macro searches for a GNU version of make. If a match is found, the | |
1675 | dnl makefile variable `ifGNUmake' is set to the empty string, otherwise it is | |
99b51359 | 1676 | dnl set to "#". This is useful for including a special features in a Makefile, |
29bd52c8 PE |
1677 | dnl which cannot be handled by other versions of make. The variable |
1678 | dnl _cv_gnu_make_command is set to the command to invoke GNU make if it exists, | |
1679 | dnl the empty string otherwise. | |
1680 | dnl | |
1681 | dnl Here is an example of its use: | |
1682 | dnl | |
1683 | dnl Makefile.in might contain: | |
1684 | dnl | |
1685 | dnl # A failsafe way of putting a dependency rule into a makefile | |
1686 | dnl $(DEPEND): | |
1687 | dnl $(CC) -MM $(srcdir)/*.c > $(DEPEND) | |
1688 | dnl | |
1689 | dnl @ifGNUmake@ ifeq ($(DEPEND),$(wildcard $(DEPEND))) | |
1690 | dnl @ifGNUmake@ include $(DEPEND) | |
1691 | dnl @ifGNUmake@ endif | |
1692 | dnl | |
1693 | dnl Then configure.in would normally contain: | |
1694 | dnl | |
1695 | dnl CHECK_GNU_MAKE() | |
1696 | dnl AC_OUTPUT(Makefile) | |
1697 | dnl | |
1698 | dnl Then perhaps to cause gnu make to override any other make, we could do | |
1699 | dnl something like this (note that GNU make always looks for GNUmakefile first): | |
1700 | dnl | |
1701 | dnl if ! test x$_cv_gnu_make_command = x ; then | |
1702 | dnl mv Makefile GNUmakefile | |
1703 | dnl echo .DEFAULT: > Makefile ; | |
1704 | dnl echo \ $_cv_gnu_make_command \$@ >> Makefile; | |
1705 | dnl fi | |
1706 | dnl | |
1707 | dnl Then, if any (well almost any) other make is called, and GNU make also | |
1708 | dnl exists, then the other make wraps the GNU make. | |
1709 | dnl | |
1710 | dnl @author John Darrington <j.darrington@elvis.murdoch.edu.au> | |
421173e6 | 1711 | dnl @version 1.1 #### replaced Id string now that Id is for lib-v3; pme |
29bd52c8 PE |
1712 | dnl |
1713 | dnl #### Changes for libstdc++-v3: reformatting and linewrapping; prepending | |
1714 | dnl #### GLIBCPP_ to the macro name; adding the :-make fallback in the | |
79f5e38e BC |
1715 | dnl #### conditional's subshell (" --version" is not a command), using a |
1716 | dnl #### different option to grep(1). | |
29bd52c8 | 1717 | dnl #### -pme |
57d278be MS |
1718 | dnl #### Fixed Bourne shell portability bug (use ${MAKE-make}, not |
1719 | dnl #### ${MAKE:-make}). | |
1720 | dnl #### -msokolov | |
29bd52c8 PE |
1721 | AC_DEFUN( |
1722 | GLIBCPP_CHECK_GNU_MAKE, [AC_CACHE_CHECK( for GNU make,_cv_gnu_make_command, | |
1723 | _cv_gnu_make_command='' ; | |
1724 | dnl Search all the common names for GNU make | |
57d278be | 1725 | for a in "${MAKE-make}" make gmake gnumake ; do |
626d8f0a | 1726 | if ( $a --version 2> /dev/null | grep -c GNU > /dev/null ) |
79f5e38e | 1727 | then |
29bd52c8 PE |
1728 | _cv_gnu_make_command=$a ; |
1729 | break; | |
1730 | fi | |
1731 | done ; | |
1732 | ) ; | |
1733 | dnl If there was a GNU version, then set @ifGNUmake@ to the empty | |
1734 | dnl string, '#' otherwise | |
1735 | if test "x$_cv_gnu_make_command" != "x" ; then | |
1736 | ifGNUmake='' ; | |
1737 | else | |
1738 | ifGNUmake='#' ; | |
1739 | fi | |
1740 | AC_SUBST(ifGNUmake) | |
1741 | ]) | |
3df64633 AO |
1742 | |
1743 | sinclude(../libtool.m4) | |
1744 | dnl The lines below arrange for aclocal not to bring an installed | |
1745 | dnl libtool.m4 into aclocal.m4, while still arranging for automake to | |
1746 | dnl add a definition of LIBTOOL to Makefile.in. | |
1747 | ifelse(,,,[AC_SUBST(LIBTOOL) | |
1748 | AC_DEFUN([AM_PROG_LIBTOOL]) | |
1749 | AC_DEFUN([AC_LIBTOOL_DLOPEN]) | |
1750 | AC_DEFUN([AC_PROG_LD]) | |
7f586614 | 1751 | ]) |
9a200b0a | 1752 |