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Commit | Line | Data |
---|---|---|
b9e8095b | 1 | dnl |
2 | dnl Initialize configure bits. | |
3 | dnl | |
b9e8095b | 4 | dnl GLIBCPP_CONFIGURE |
5 | AC_DEFUN(GLIBCPP_CONFIGURE, [ | |
6 | dnl Default to --enable-multilib | |
7 | AC_ARG_ENABLE(multilib, | |
8 | [ --enable-multilib build hella library versions (default)], | |
9 | [case "${enableval}" in | |
10 | yes) multilib=yes ;; | |
11 | no) multilib=no ;; | |
12 | *) AC_MSG_ERROR(bad value ${enableval} for multilib option) ;; | |
13 | esac], [multilib=yes])dnl | |
14 | ||
c3f3e891 | 15 | glibcpp_basedir=$srcdir/$toprel/$1/libstdc++-v3 |
b9e8095b | 16 | AC_SUBST(glibcpp_basedir) |
17 | ||
4042369a | 18 | AM_INIT_AUTOMAKE(libstdc++, 3.0.0) |
b9e8095b | 19 | |
f04d76b5 | 20 | # Never versions of autoconf add an underscore to these functions. |
21 | # Prevent future problems ... | |
22 | ifdef([AC_PROG_CC_G],[],[define([AC_PROG_CC_G],defn([_AC_PROG_CC_G]))]) | |
23 | ifdef([AC_PROG_CC_GNU],[],[define([AC_PROG_CC_GNU],defn([_AC_PROG_CC_GNU]))]) | |
24 | ifdef([AC_PROG_CXX_G],[],[define([AC_PROG_CXX_G],defn([_AC_PROG_CXX_G]))]) | |
25 | ifdef([AC_PROG_CXX_GNU],[],[define([AC_PROG_CXX_GNU],defn([_AC_PROG_CXX_GNU]))]) | |
f1f1b9ae | 26 | |
27 | # AC_PROG_CC | |
28 | ||
b9e8095b | 29 | # FIXME: We temporarily define our own version of AC_PROG_CC. This is |
30 | # copied from autoconf 2.12, but does not call AC_PROG_CC_WORKS. We | |
31 | # are probably using a cross compiler, which will not be able to fully | |
32 | # link an executable. This should really be fixed in autoconf | |
33 | # itself. | |
34 | ||
35 | AC_DEFUN(LIB_AC_PROG_CC, | |
36 | [AC_BEFORE([$0], [AC_PROG_CPP])dnl | |
37 | dnl Fool anybody using AC_PROG_CC. | |
38 | AC_PROVIDE([AC_PROG_CC]) | |
39 | AC_CHECK_PROG(CC, gcc, gcc) | |
40 | if test -z "$CC"; then | |
41 | AC_CHECK_PROG(CC, cc, cc, , , /usr/ucb/cc) | |
42 | test -z "$CC" && AC_MSG_ERROR([no acceptable cc found in \$PATH]) | |
43 | fi | |
44 | ||
45 | AC_PROG_CC_GNU | |
46 | ||
47 | if test $ac_cv_prog_gcc = yes; then | |
48 | GCC=yes | |
49 | dnl Check whether -g works, even if CFLAGS is set, in case the package | |
50 | dnl plays around with CFLAGS (such as to build both debugging and | |
51 | dnl normal versions of a library), tasteless as that idea is. | |
52 | ac_test_CFLAGS="${CFLAGS+set}" | |
53 | ac_save_CFLAGS="$CFLAGS" | |
54 | CFLAGS= | |
55 | AC_PROG_CC_G | |
56 | if test "$ac_test_CFLAGS" = set; then | |
57 | CFLAGS="$ac_save_CFLAGS" | |
58 | elif test $ac_cv_prog_cc_g = yes; then | |
59 | CFLAGS="-g -O2" | |
60 | else | |
61 | CFLAGS="-O2" | |
62 | fi | |
63 | else | |
64 | GCC= | |
65 | test "${CFLAGS+set}" = set || CFLAGS="-g" | |
66 | fi | |
67 | ]) | |
68 | ||
69 | LIB_AC_PROG_CC | |
70 | ||
f1f1b9ae | 71 | # Can't just call these here as g++ requires libstc++ to be built.... |
72 | # AC_PROG_CXX | |
73 | ||
b9e8095b | 74 | # Likewise for AC_PROG_CXX. |
75 | AC_DEFUN(LIB_AC_PROG_CXX, | |
76 | [AC_BEFORE([$0], [AC_PROG_CXXCPP])dnl | |
77 | dnl Fool anybody using AC_PROG_CXX. | |
78 | AC_PROVIDE([AC_PROG_CXX]) | |
c45e0e39 | 79 | # Use glibcpp_CXX so that we do not cause CXX to be cached with the |
c2302820 | 80 | # flags that come in CXX while configuring libstdc++. They're different |
33254cff | 81 | # from those used for all other target libraries. If CXX is set in |
82 | # the environment, respect that here. | |
c45e0e39 | 83 | glibcpp_CXX=$CXX |
84 | AC_CHECK_PROGS(glibcpp_CXX, $CCC c++ g++ gcc CC cxx cc++, gcc) | |
85 | AC_SUBST(glibcpp_CXX) | |
a106f8d6 | 86 | CXX=$glibcpp_CXX |
c45e0e39 | 87 | test -z "$glibcpp_CXX" && AC_MSG_ERROR([no acceptable c++ found in \$PATH]) |
b9e8095b | 88 | |
89 | AC_PROG_CXX_GNU | |
90 | ||
91 | if test $ac_cv_prog_gxx = yes; then | |
92 | GXX=yes | |
93 | dnl Check whether -g works, even if CXXFLAGS is set, in case the package | |
94 | dnl plays around with CXXFLAGS (such as to build both debugging and | |
95 | dnl normal versions of a library), tasteless as that idea is. | |
96 | ac_test_CXXFLAGS="${CXXFLAGS+set}" | |
97 | ac_save_CXXFLAGS="$CXXFLAGS" | |
98 | CXXFLAGS= | |
99 | AC_PROG_CXX_G | |
100 | if test "$ac_test_CXXFLAGS" = set; then | |
101 | CXXFLAGS="$ac_save_CXXFLAGS" | |
102 | elif test $ac_cv_prog_cxx_g = yes; then | |
103 | CXXFLAGS="-g -O2" | |
104 | else | |
105 | CXXFLAGS="-O2" | |
106 | fi | |
107 | else | |
108 | GXX= | |
109 | test "${CXXFLAGS+set}" = set || CXXFLAGS="-g" | |
110 | fi | |
111 | ]) | |
112 | ||
113 | LIB_AC_PROG_CXX | |
114 | ||
f1f1b9ae | 115 | AC_CHECK_TOOL(AS, as) |
116 | AC_CHECK_TOOL(AR, ar) | |
c45e0e39 | 117 | AC_CHECK_TOOL(RANLIB, ranlib, ranlib-not-found-in-path-error) |
f1f1b9ae | 118 | AC_PROG_INSTALL |
b9e8095b | 119 | |
f1f1b9ae | 120 | AM_MAINTAINER_MODE |
b9e8095b | 121 | |
f1f1b9ae | 122 | # We need AC_EXEEXT to keep automake happy in cygnus mode. However, |
123 | # at least currently, we never actually build a program, so we never | |
124 | # need to use $(EXEEXT). Moreover, the test for EXEEXT normally | |
125 | # fails, because we are probably configuring with a cross compiler | |
126 | # which cant create executables. So we include AC_EXEEXT to keep | |
127 | # automake happy, but we dont execute it, since we dont care about | |
0a40c6ad | 128 | # the result. |
f1f1b9ae | 129 | if false; then |
cc4069a9 | 130 | # autoconf 2.50 runs AC_EXEEXT by default, and the macro expands |
131 | # to nothing, so nothing would remain between `then' and `fi' if it | |
132 | # were not for the `:' below. | |
133 | : | |
f1f1b9ae | 134 | AC_EXEEXT |
135 | fi | |
b9e8095b | 136 | |
f1f1b9ae | 137 | . [$]{glibcpp_basedir}/configure.host |
138 | ||
139 | case [$]{glibcpp_basedir} in | |
557a32f1 | 140 | /* | [A-Za-z]:[\\/]*) libgcj_flagbasedir=[$]{glibcpp_basedir} ;; |
f1f1b9ae | 141 | *) glibcpp_flagbasedir='[$](top_builddir)/'[$]{glibcpp_basedir} ;; |
142 | esac | |
b9e8095b | 143 | |
1d71fbac | 144 | # This does for the target what configure.host does for the host. In |
5886ba5e | 145 | # addition to possibly modifying the same flags, it also sets up symlinks. |
1d71fbac | 146 | GLIBCPP_CHECK_TARGET |
b9e8095b | 147 | ]) |
148 | ||
149 | ||
150 | dnl | |
9c6a106c | 151 | dnl Check to see if g++ can compile this library, and if so, if any version- |
c21bc234 | 152 | dnl specific precautions need to be taken. |
153 | dnl | |
154 | dnl GLIBCPP_CHECK_COMPILER_VERSION | |
155 | AC_DEFUN(GLIBCPP_CHECK_COMPILER_VERSION, [ | |
95925f2c | 156 | if test ! -f stamp-sanity-compiler; then |
157 | AC_MSG_CHECKING([for g++ that will successfully compile libstdc++-v3]) | |
158 | AC_LANG_SAVE | |
159 | AC_LANG_CPLUSPLUS | |
c2f3d0d8 | 160 | AC_TRY_COMPILE(, [ |
161 | #if __GNUC__ < 3 | |
162 | not_ok | |
c21bc234 | 163 | #endif |
90d10a87 | 164 | ], gpp_satisfactory=yes, AC_MSG_ERROR([please upgrade to GCC 3.0 or above])) |
95925f2c | 165 | AC_LANG_RESTORE |
c21bc234 | 166 | AC_MSG_RESULT($gpp_satisfactory) |
95925f2c | 167 | touch stamp-sanity-compiler |
168 | fi | |
c21bc234 | 169 | ]) |
170 | ||
171 | ||
172 | dnl | |
457683de | 173 | dnl Tests for newer compiler features, or features that are present in newer |
174 | dnl compiler versions but not older compiler versions still in use, should | |
175 | dnl be placed here. | |
b9e8095b | 176 | dnl |
211ecbdf | 177 | dnl Define WERROR='-Werror' if requested and possible; g++'s that lack the |
178 | dnl new inlining code or the new system_header pragma will die on -Werror. | |
179 | dnl Leave it out by default and use maint-mode to use it. | |
b9e8095b | 180 | dnl |
c21bc234 | 181 | dnl Define SECTION_FLAGS='-ffunction-sections -fdata-sections' if |
b9386e63 | 182 | dnl compiler supports it and the user has not requested debug mode. |
183 | dnl | |
c21bc234 | 184 | dnl GLIBCPP_CHECK_COMPILER_FEATURES |
185 | AC_DEFUN(GLIBCPP_CHECK_COMPILER_FEATURES, [ | |
c51c23c3 | 186 | # All these tests are for C++; save the language and the compiler flags. |
457683de | 187 | # The CXXFLAGS thing is suspicious, but based on similar bits previously |
c51c23c3 | 188 | # found in GLIBCPP_CONFIGURE. |
189 | AC_LANG_SAVE | |
190 | AC_LANG_CPLUSPLUS | |
191 | ac_test_CXXFLAGS="${CXXFLAGS+set}" | |
192 | ac_save_CXXFLAGS="$CXXFLAGS" | |
c51c23c3 | 193 | |
211ecbdf | 194 | # Check for maintainer-mode bits. |
195 | if test x"$USE_MAINTAINER_MODE" = xno; then | |
196 | WERROR='' | |
9c6a106c | 197 | else |
211ecbdf | 198 | WERROR='-Werror' |
9c6a106c | 199 | fi |
200 | ||
c21bc234 | 201 | # Check for -ffunction-sections -fdata-sections |
202 | AC_MSG_CHECKING([for g++ that supports -ffunction-sections -fdata-sections]) | |
8e34227a | 203 | CXXFLAGS='-Werror -ffunction-sections -fdata-sections' |
c21bc234 | 204 | AC_TRY_COMPILE(, [int foo; |
205 | ], [ac_fdsections=yes], [ac_fdsections=no]) | |
206 | if test "$ac_test_CXXFLAGS" = set; then | |
207 | CXXFLAGS="$ac_save_CXXFLAGS" | |
208 | else | |
209 | # this is the suspicious part | |
210 | CXXFLAGS='' | |
211 | fi | |
2475beac | 212 | if test x"$ac_fdsections" = x"yes" && |
213 | test x"$enable_debug" = x"no"; then | |
c21bc234 | 214 | SECTION_FLAGS='-ffunction-sections -fdata-sections' |
215 | fi | |
216 | AC_MSG_RESULT($ac_fdsections) | |
217 | ||
c51c23c3 | 218 | AC_LANG_RESTORE |
9c6a106c | 219 | AC_SUBST(WERROR) |
c21bc234 | 220 | AC_SUBST(SECTION_FLAGS) |
b9e8095b | 221 | ]) |
222 | ||
c21bc234 | 223 | |
224 | dnl | |
06f58ac6 | 225 | dnl If GNU ld is in use, check to see if tricky linker opts can be used. If |
226 | dnl the native linker is in use, all variables will be defined to something | |
227 | dnl safe (like an empty string). | |
228 | dnl | |
229 | dnl Define SECTION_LDFLAGS='-Wl,--gc-sections' if possible. | |
230 | dnl Define OPT_LDFLAGS='-Wl,-O1' if possible. | |
c21bc234 | 231 | dnl |
c21bc234 | 232 | dnl GLIBCPP_CHECK_LINKER_FEATURES |
233 | AC_DEFUN(GLIBCPP_CHECK_LINKER_FEATURES, [ | |
06f58ac6 | 234 | # If we're not using GNU ld, then there's no point in even trying these |
235 | # tests. Check for that first. We should have already tested for gld | |
236 | # by now (in libtool), but require it now just to be safe... | |
985550e9 | 237 | SECTION_LDFLAGS='' |
238 | OPT_LDFLAGS='' | |
06f58ac6 | 239 | AC_REQUIRE([AC_PROG_LD]) |
445cdc9a | 240 | |
241 | # Set --gc-sections. | |
dd76f7b5 | 242 | if test "$ac_cv_prog_gnu_ld" = "notbroken"; then |
985550e9 | 243 | # GNU ld it is! Joy and bunny rabbits! |
06f58ac6 | 244 | |
245 | # All these tests are for C++; save the language and the compiler flags. | |
246 | # Need to do this so that g++ won't try to link in libstdc++ | |
247 | ac_test_CFLAGS="${CFLAGS+set}" | |
248 | ac_save_CFLAGS="$CFLAGS" | |
445cdc9a | 249 | CFLAGS='-x c++ -Wl,--gc-sections' |
06f58ac6 | 250 | |
251 | # Check for -Wl,--gc-sections | |
71dbcf67 | 252 | # XXX This test is broken at the moment, as symbols required for |
253 | # linking are now in libsupc++ (not built yet.....). In addition, | |
985550e9 | 254 | # this test has cored on solaris in the past. In addition, |
255 | # --gc-sections doesn't really work at the moment (keeps on discarding | |
256 | # used sections, first .eh_frame and now some of the glibc sections for | |
257 | # iconv). Bzzzzt. Thanks for playing, maybe next time. | |
06f58ac6 | 258 | AC_MSG_CHECKING([for ld that supports -Wl,--gc-sections]) |
259 | AC_TRY_RUN([ | |
260 | int main(void) | |
261 | { | |
985550e9 | 262 | try { throw 1; } |
263 | catch (...) { }; | |
06f58ac6 | 264 | return 0; |
265 | } | |
71dbcf67 | 266 | ], [ac_sectionLDflags=yes],[ac_sectionLFflags=no], [ac_sectionLDflags=yes]) |
06f58ac6 | 267 | if test "$ac_test_CFLAGS" = set; then |
268 | CFLAGS="$ac_save_CFLAGS" | |
269 | else | |
270 | # this is the suspicious part | |
271 | CFLAGS='' | |
272 | fi | |
273 | if test "$ac_sectionLDflags" = "yes"; then | |
445cdc9a | 274 | SECTION_LDFLAGS='-Wl,--gc-sections' |
06f58ac6 | 275 | fi |
276 | AC_MSG_RESULT($ac_sectionLDflags) | |
445cdc9a | 277 | fi |
985550e9 | 278 | |
445cdc9a | 279 | # Set linker optimization flags. |
2475beac | 280 | if test x"$ac_cv_prog_gnu_ld" = x"yes" && |
281 | test x"$enable_debug" = x"no"; then | |
06f58ac6 | 282 | OPT_LDFLAGS='-Wl,-O1' |
06f58ac6 | 283 | fi |
445cdc9a | 284 | |
c21bc234 | 285 | AC_SUBST(SECTION_LDFLAGS) |
06f58ac6 | 286 | AC_SUBST(OPT_LDFLAGS) |
c21bc234 | 287 | ]) |
288 | ||
289 | ||
b9e8095b | 290 | dnl |
04081d71 | 291 | dnl Check to see if the (math function) argument passed is |
a54b7bcc | 292 | dnl declared when using the c++ compiler |
7fdffd07 | 293 | dnl ASSUMES argument is a math function with ONE parameter |
294 | dnl | |
a54b7bcc | 295 | dnl GLIBCPP_CHECK_MATH_DECL_1 |
296 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_1, [ | |
7fdffd07 | 297 | AC_MSG_CHECKING([for $1 declaration]) |
41127527 | 298 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
299 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
300 | AC_LANG_SAVE | |
301 | AC_LANG_CPLUSPLUS | |
d6f87729 | 302 | AC_TRY_COMPILE([#include <math.h> |
303 | #ifdef HAVE_IEEEFP_H | |
304 | #include <ieeefp.h> | |
305 | #endif | |
306 | ], | |
41127527 | 307 | [ $1(0);], |
308 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
309 | AC_LANG_RESTORE | |
310 | ]) | |
311 | fi | |
06f58ac6 | 312 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
a54b7bcc | 313 | ]) |
314 | ||
315 | dnl | |
316 | dnl Check to see if the (math function) argument passed is | |
317 | dnl 1) declared when using the c++ compiler | |
318 | dnl 2) has "C" linkage | |
319 | dnl 3) if not, see if 1) and 2) for argument prepended with '_' | |
320 | dnl | |
321 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
322 | dnl | |
323 | dnl argument 1 is name of function to check | |
324 | dnl | |
325 | dnl ASSUMES argument is a math function with ONE parameter | |
326 | dnl | |
327 | dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1 | |
328 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, [ | |
329 | GLIBCPP_CHECK_MATH_DECL_1($1) | |
06f58ac6 | 330 | if test x$glibcpp_cv_func_$1_use = x"yes"; then |
7fdffd07 | 331 | AC_CHECK_FUNCS($1) |
a54b7bcc | 332 | else |
333 | GLIBCPP_CHECK_MATH_DECL_1(_$1) | |
334 | if test x$glibcpp_cv_func__$1_use = x"yes"; then | |
335 | AC_CHECK_FUNCS(_$1) | |
2475beac | 336 | fi |
7fdffd07 | 337 | fi |
338 | ]) | |
339 | ||
a54b7bcc | 340 | |
af3ed51d | 341 | dnl |
342 | dnl Like GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1, but does a bunch of | |
343 | dnl of functions at once. It's an all-or-nothing check -- either | |
93a3ddb7 | 344 | dnl HAVE_XYZ is defined for each of the functions, or for none of them. |
af3ed51d | 345 | dnl Doing it this way saves significant configure time. |
346 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1, [ | |
347 | AC_MSG_CHECKING([for $1 functions]) | |
348 | AC_CACHE_VAL(glibcpp_cv_func_$2_use, [ | |
349 | AC_LANG_SAVE | |
350 | AC_LANG_CPLUSPLUS | |
351 | AC_TRY_COMPILE([#include <math.h>], | |
352 | [ `for x in $3; do echo "$x (0);"; done` ], | |
93a3ddb7 | 353 | [glibcpp_cv_func_$2_use=yes], |
354 | [glibcpp_cv_func_$2_use=no]) | |
af3ed51d | 355 | AC_LANG_RESTORE]) |
356 | AC_MSG_RESULT($glibcpp_cv_func_$2_use) | |
357 | if test x$glibcpp_cv_func_$2_use = x"yes"; then | |
358 | AC_CHECK_FUNCS($3) | |
359 | fi | |
360 | ]) | |
7fdffd07 | 361 | |
362 | dnl | |
04081d71 | 363 | dnl Check to see if the (math function) argument passed is |
a54b7bcc | 364 | dnl declared when using the c++ compiler |
457683de | 365 | dnl ASSUMES argument is a math function with TWO parameters |
7fdffd07 | 366 | dnl |
a54b7bcc | 367 | dnl GLIBCPP_CHECK_MATH_DECL_2 |
368 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_2, [ | |
7fdffd07 | 369 | AC_MSG_CHECKING([for $1 declaration]) |
41127527 | 370 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
371 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
372 | AC_LANG_SAVE | |
373 | AC_LANG_CPLUSPLUS | |
374 | AC_TRY_COMPILE([#include <math.h>], | |
375 | [ $1(0, 0);], | |
376 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
377 | AC_LANG_RESTORE | |
378 | ]) | |
379 | fi | |
06f58ac6 | 380 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
7fdffd07 | 381 | ]) |
382 | ||
7fdffd07 | 383 | dnl |
04081d71 | 384 | dnl Check to see if the (math function) argument passed is |
7fdffd07 | 385 | dnl 1) declared when using the c++ compiler |
386 | dnl 2) has "C" linkage | |
387 | dnl | |
388 | dnl Define HAVE_CARGF etc if "cargf" is declared and links | |
389 | dnl | |
390 | dnl argument 1 is name of function to check | |
391 | dnl | |
a54b7bcc | 392 | dnl ASSUMES argument is a math function with TWO parameters |
7fdffd07 | 393 | dnl |
a54b7bcc | 394 | dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2 |
395 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2, [ | |
396 | GLIBCPP_CHECK_MATH_DECL_2($1) | |
397 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
398 | AC_CHECK_FUNCS($1) | |
399 | else | |
400 | GLIBCPP_CHECK_MATH_DECL_2(_$1) | |
401 | if test x$glibcpp_cv_func__$1_use = x"yes"; then | |
402 | AC_CHECK_FUNCS(_$1) | |
2475beac | 403 | fi |
a54b7bcc | 404 | fi |
405 | ]) | |
406 | ||
407 | ||
408 | dnl | |
409 | dnl Check to see if the (math function) argument passed is | |
410 | dnl declared when using the c++ compiler | |
457683de | 411 | dnl ASSUMES argument is a math function with THREE parameters |
a54b7bcc | 412 | dnl |
413 | dnl GLIBCPP_CHECK_MATH_DECL_3 | |
414 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_3, [ | |
7fdffd07 | 415 | AC_MSG_CHECKING([for $1 declaration]) |
41127527 | 416 | if test x${glibcpp_cv_func_$1_use+set} != xset; then |
417 | AC_CACHE_VAL(glibcpp_cv_func_$1_use, [ | |
418 | AC_LANG_SAVE | |
419 | AC_LANG_CPLUSPLUS | |
420 | AC_TRY_COMPILE([#include <math.h>], | |
421 | [ $1(0, 0, 0);], | |
422 | [glibcpp_cv_func_$1_use=yes], [glibcpp_cv_func_$1_use=no]) | |
423 | AC_LANG_RESTORE | |
424 | ]) | |
425 | fi | |
06f58ac6 | 426 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
a54b7bcc | 427 | ]) |
428 | ||
429 | dnl | |
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 THREE parameters | |
439 | dnl | |
440 | dnl GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3 | |
441 | AC_DEFUN(GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3, [ | |
442 | GLIBCPP_CHECK_MATH_DECL_3($1) | |
06f58ac6 | 443 | if test x$glibcpp_cv_func_$1_use = x"yes"; then |
7fdffd07 | 444 | AC_CHECK_FUNCS($1) |
a54b7bcc | 445 | else |
446 | GLIBCPP_CHECK_MATH_DECL_3(_$1) | |
447 | if test x$glibcpp_cv_func__$1_use = x"yes"; then | |
448 | AC_CHECK_FUNCS(_$1) | |
2475beac | 449 | fi |
7fdffd07 | 450 | fi |
451 | ]) | |
452 | ||
453 | ||
445cdc9a | 454 | dnl |
455 | dnl Check to see if the (stdlib function) argument passed is | |
456 | dnl 1) declared when using the c++ compiler | |
457 | dnl 2) has "C" linkage | |
458 | dnl | |
445cdc9a | 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 $1 declaration]) | |
41127527 | 466 | if test x${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_$1_use=no]) | |
473 | AC_LANG_RESTORE | |
474 | ]) | |
475 | fi | |
445cdc9a | 476 | AC_MSG_RESULT($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 | ||
04081d71 | 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, [ | |
04081d71 | 498 | AC_MSG_CHECKING([for $1 declaration]) |
41127527 | 499 | if test x${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_$1_use=no]) | |
506 | AC_LANG_RESTORE | |
507 | ]) | |
508 | fi | |
06f58ac6 | 509 | AC_MSG_RESULT($glibcpp_cv_func_$1_use) |
510 | if test x$glibcpp_cv_func_$1_use = x"yes"; then | |
04081d71 | 511 | AC_MSG_CHECKING([for $1 linkage]) |
41127527 | 512 | if test x${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_$1_link=no]) | |
517 | ]) | |
518 | fi | |
06f58ac6 | 519 | AC_MSG_RESULT($glibcpp_cv_func_$1_link) |
520 | if test x$glibcpp_cv_func_$1_link = x"yes"; then | |
04081d71 | 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$dummyvar = x"yes"; then | |
576 | AC_DEFINE(HAVE___BUILTIN_ABS) | |
577 | AC_DEFINE(HAVE___BUILTIN_LABS) | |
578 | AC_DEFINE(HAVE___BUILTIN_COS) | |
579 | AC_DEFINE(HAVE___BUILTIN_COSF) | |
580 | AC_DEFINE(HAVE___BUILTIN_COSL) | |
581 | AC_DEFINE(HAVE___BUILTIN_FABS) | |
582 | AC_DEFINE(HAVE___BUILTIN_FABSF) | |
583 | AC_DEFINE(HAVE___BUILTIN_FABSL) | |
584 | AC_DEFINE(HAVE___BUILTIN_SIN) | |
585 | AC_DEFINE(HAVE___BUILTIN_SINF) | |
586 | AC_DEFINE(HAVE___BUILTIN_SINL) | |
587 | AC_DEFINE(HAVE___BUILTIN_FSQRT) | |
588 | AC_DEFINE(HAVE___BUILTIN_SQRTF) | |
589 | AC_DEFINE(HAVE___BUILTIN_SQRTL) | |
590 | fi | |
591 | ]) | |
592 | ||
593 | ||
445cdc9a | 594 | dnl |
595 | dnl Check to see what the underlying c library | |
596 | dnl These checks need to do two things: | |
597 | dnl 1) make sure the name is declared when using the c++ compiler | |
598 | dnl 2) make sure the name has "C" linkage | |
599 | dnl This might seem like overkill but experience has shown that it's not... | |
600 | dnl | |
08078d47 | 601 | dnl Define HAVE_STRTOLD if "strtold" is declared and links |
602 | dnl Define HAVE_STRTOF if "strtof" is declared and links | |
603 | dnl Define HAVE_DRAND48 if "drand48" is declared and links | |
445cdc9a | 604 | dnl |
605 | dnl GLIBCPP_CHECK_STDLIB_SUPPORT | |
606 | AC_DEFUN(GLIBCPP_CHECK_STDLIB_SUPPORT, [ | |
607 | ac_test_CXXFLAGS="${CXXFLAGS+set}" | |
608 | ac_save_CXXFLAGS="$CXXFLAGS" | |
609 | CXXFLAGS='-fno-builtins -D_GNU_SOURCE' | |
610 | ||
445cdc9a | 611 | GLIBCPP_CHECK_STDLIB_DECL_AND_LINKAGE_2(strtold) |
08078d47 | 612 | AC_CHECK_FUNCS(drand48) |
445cdc9a | 613 | |
614 | CXXFLAGS="$ac_save_CXXFLAGS" | |
615 | ]) | |
616 | ||
617 | ||
b170b427 | 618 | dnl |
619 | dnl Check to see what the underlying c library or math library is like. | |
7fdffd07 | 620 | dnl These checks need to do two things: |
621 | dnl 1) make sure the name is declared when using the c++ compiler | |
622 | dnl 2) make sure the name has "C" linkage | |
623 | dnl This might seem like overkill but experience has shown that it's not... | |
b170b427 | 624 | dnl |
625 | dnl Define HAVE_CARGF etc if "cargf" is found. | |
626 | dnl | |
627 | dnl GLIBCPP_CHECK_MATH_SUPPORT | |
628 | AC_DEFUN(GLIBCPP_CHECK_MATH_SUPPORT, [ | |
7fdffd07 | 629 | ac_test_CXXFLAGS="${CXXFLAGS+set}" |
630 | ac_save_CXXFLAGS="$CXXFLAGS" | |
76e6433d | 631 | CXXFLAGS='-fno-builtins -D_GNU_SOURCE' |
ef4c833e | 632 | |
633 | dnl Check libm | |
b170b427 | 634 | AC_CHECK_LIB(m, sin, libm="-lm") |
7fdffd07 | 635 | ac_save_LIBS="$LIBS" |
b170b427 | 636 | LIBS="$LIBS $libm" |
637 | ||
7fdffd07 | 638 | dnl Check to see if certain C math functions exist. |
639 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinf) | |
640 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnan) | |
641 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finite) | |
642 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysign) | |
643 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincos) | |
644 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fpclass) | |
645 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(qfpclass) | |
1e59e631 | 646 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypot) |
7fdffd07 | 647 | |
648 | dnl Check to see if basic C math functions have float versions. | |
af3ed51d | 649 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float trig, |
93a3ddb7 | 650 | float_trig, |
651 | acosf asinf atanf \ | |
af3ed51d | 652 | cosf sinf tanf \ |
93a3ddb7 | 653 | coshf sinhf tanhf) |
af3ed51d | 654 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(float round, |
93a3ddb7 | 655 | float_round, |
af3ed51d | 656 | ceilf floorf) |
7fdffd07 | 657 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanf) |
658 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinff) | |
1e59e631 | 659 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2f) |
7fdffd07 | 660 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsf) |
7fdffd07 | 661 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodf) |
662 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpf) | |
1e59e631 | 663 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypotf) |
7fdffd07 | 664 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpf) |
665 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logf) | |
666 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10f) | |
667 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modff) | |
668 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powf) | |
7fdffd07 | 669 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtf) |
7fdffd07 | 670 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosf) |
671 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitef) | |
672 | ||
673 | dnl Check to see if basic C math functions have long double versions. | |
af3ed51d | 674 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double trig, |
93a3ddb7 | 675 | long_double_trig, |
676 | acosl asinl atanl \ | |
af3ed51d | 677 | cosl sinl tanl \ |
93a3ddb7 | 678 | coshl sinhl tanhl) |
af3ed51d | 679 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(long double round, |
93a3ddb7 | 680 | long_double_round, |
af3ed51d | 681 | ceill floorl) |
7fdffd07 | 682 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isnanl) |
683 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(isinfl) | |
04081d71 | 684 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(copysignl) |
7fdffd07 | 685 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(atan2l) |
7fdffd07 | 686 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(expl) |
687 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(fabsl) | |
7fdffd07 | 688 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(fmodl) |
689 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(frexpl) | |
1e59e631 | 690 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(hypotl) |
7fdffd07 | 691 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(ldexpl) |
692 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(logl) | |
693 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(log10l) | |
694 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(modfl) | |
695 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_2(powl) | |
7fdffd07 | 696 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(sqrtl) |
7fdffd07 | 697 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_3(sincosl) |
698 | GLIBCPP_CHECK_MATH_DECL_AND_LINKAGE_1(finitel) | |
699 | ||
700 | dnl Some runtimes have these functions with a preceding underscore. Please | |
701 | dnl keep this sync'd with the one above. And if you add any new symbol, | |
702 | dnl please add the corresponding block in the @BOTTOM@ section of acconfig.h. | |
703 | dnl Check to see if certain C math functions exist. | |
7fdffd07 | 704 | |
705 | dnl Check to see if basic C math functions have float versions. | |
af3ed51d | 706 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float trig, |
93a3ddb7 | 707 | _float_trig, |
708 | _acosf _asinf _atanf \ | |
af3ed51d | 709 | _cosf _sinf _tanf \ |
93a3ddb7 | 710 | _coshf _sinhf _tanhf) |
af3ed51d | 711 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_float round, |
93a3ddb7 | 712 | _float_round, |
af3ed51d | 713 | _ceilf _floorf) |
7fdffd07 | 714 | |
715 | dnl Check to see if basic C math functions have long double versions. | |
af3ed51d | 716 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double trig, |
93a3ddb7 | 717 | _long_double_trig, |
718 | _acosl _asinl _atanl \ | |
af3ed51d | 719 | _cosl _sinl _tanl \ |
93a3ddb7 | 720 | _coshl _sinhl _tanhl) |
af3ed51d | 721 | GLIBCPP_CHECK_MATH_DECLS_AND_LINKAGES_1(_long double round, |
93a3ddb7 | 722 | _long_double_round, |
af3ed51d | 723 | _ceill _floorl) |
7fdffd07 | 724 | |
725 | LIBS="$ac_save_LIBS" | |
726 | CXXFLAGS="$ac_save_CXXFLAGS" | |
b170b427 | 727 | ]) |
728 | ||
729 | ||
730 | dnl | |
731 | dnl Check to see if there is native support for complex | |
732 | dnl | |
733 | dnl Don't compile bits in math/* if native support exits. | |
734 | dnl | |
1e59e631 | 735 | dnl Define USE_COMPLEX_LONG_DOUBLE etc if "copysignl" is found. |
b170b427 | 736 | dnl |
737 | dnl GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT | |
738 | AC_DEFUN(GLIBCPP_CHECK_COMPLEX_MATH_SUPPORT, [ | |
739 | dnl Check for complex versions of math functions of platform. | |
5922e5b5 | 740 | AC_CHECK_LIB(m, main) |
1e59e631 | 741 | AC_REPLACE_MATHFUNCS(nan copysignf) |
04081d71 | 742 | |
743 | dnl Compile the long double complex functions only if the function | |
744 | dnl provides the non-complex long double functions that are needed. | |
1e59e631 | 745 | dnl Currently this includes copysignl, which should be |
04081d71 | 746 | dnl cached from the GLIBCPP_CHECK_MATH_SUPPORT macro, above. |
747 | USE_COMPLEX_LONG_DOUBLE=no | |
1e59e631 | 748 | if test x$ac_cv_func_copysignl = x"yes"; then |
04081d71 | 749 | USE_COMPLEX_LONG_DOUBLE=yes |
1e59e631 | 750 | AC_REPLACE_MATHFUNCS(signbitl) |
04081d71 | 751 | fi |
752 | ||
b170b427 | 753 | AC_SUBST(USE_COMPLEX_LONG_DOUBLE) |
754 | ]) | |
755 | ||
67271580 | 756 | |
1d71fbac | 757 | dnl Check to see what architecture and operating system we are compiling |
758 | dnl for. Also, if architecture- or OS-specific flags are required for | |
759 | dnl compilation, pick them up here. | |
d481da82 | 760 | dnl |
1d71fbac | 761 | dnl GLIBCPP_CHECK_TARGET |
762 | AC_DEFUN(GLIBCPP_CHECK_TARGET, [ | |
763 | . [$]{glibcpp_basedir}/configure.target | |
764 | AC_MSG_RESULT(CPU config directory is $cpu_include_dir) | |
765 | AC_MSG_RESULT(OS config directory is $os_include_dir) | |
d481da82 | 766 | ]) |
767 | ||
768 | ||
b9e8095b | 769 | dnl |
770 | dnl Check to see if this target can enable the wchar_t parts of libstdc++. | |
1580b14b | 771 | dnl If --disable-c-mbchar was given, no wchar_t stuff is enabled. (This |
772 | dnl must have been previously checked.) | |
b9e8095b | 773 | dnl |
0a40c6ad | 774 | dnl Define _GLIBCPP_USE_WCHAR_T if all the bits are found |
3d1a09b9 | 775 | dnl Define HAVE_MBSTATE_T if mbstate_t is not in wchar.h |
b9e8095b | 776 | dnl |
777 | dnl GLIBCPP_CHECK_WCHAR_T_SUPPORT | |
778 | AC_DEFUN(GLIBCPP_CHECK_WCHAR_T_SUPPORT, [ | |
3d1a09b9 | 779 | |
780 | dnl Test wchar.h for mbstate_t, which is needed for char_traits and | |
781 | dnl others even if wchar_t support is not on. | |
782 | AC_MSG_CHECKING([for mbstate_t]) | |
783 | AC_TRY_COMPILE([#include <wchar.h>], | |
784 | [mbstate_t teststate;], | |
785 | have_mbstate_t=yes, have_mbstate_t=no) | |
786 | AC_MSG_RESULT($have_mbstate_t) | |
787 | if test x"$have_mbstate_t" = xyes; then | |
788 | AC_DEFINE(HAVE_MBSTATE_T) | |
789 | fi | |
790 | ||
791 | dnl Sanity check for existence of ISO C99 headers for extended encoding. | |
792 | AC_CHECK_HEADERS(wchar.h, ac_has_wchar_h=yes, ac_has_wchar_h=no) | |
793 | AC_CHECK_HEADER(wctype.h, ac_has_wctype_h=yes, ac_has_wctype_h=no) | |
0a40c6ad | 794 | |
3d1a09b9 | 795 | dnl Only continue checking if the ISO C99 headers exist and support is on. |
2475beac | 796 | if test x"$ac_has_wchar_h" = xyes && |
797 | test x"$ac_has_wctype_h" = xyes && | |
798 | test x"$enable_c_mbchar" != xno; then | |
3d1a09b9 | 799 | |
800 | dnl Test wchar.h for WCHAR_MIN, WCHAR_MAX, which is needed before | |
801 | dnl numeric_limits can instantiate type_traits<wchar_t> | |
802 | AC_MSG_CHECKING([for WCHAR_MIN and WCHAR_MAX]) | |
803 | AC_TRY_COMPILE([#include <wchar.h>], | |
804 | [int i = WCHAR_MIN; int j = WCHAR_MAX;], | |
805 | has_wchar_minmax=yes, has_wchar_minmax=no) | |
806 | AC_MSG_RESULT($has_wchar_minmax) | |
1580b14b | 807 | |
3d1a09b9 | 808 | dnl Test wchar.h for WEOF, which is what we use to determine whether |
809 | dnl to specialize for char_traits<wchar_t> or not. | |
810 | AC_MSG_CHECKING([for WEOF]) | |
811 | AC_TRY_COMPILE([ | |
812 | #include <wchar.h> | |
813 | #include <stddef.h>], | |
814 | [wint_t i = WEOF;], | |
815 | has_weof=yes, has_weof=no) | |
816 | AC_MSG_RESULT($has_weof) | |
1580b14b | 817 | |
3d1a09b9 | 818 | dnl Tests for wide character functions used in char_traits<wchar_t>. |
710560e9 | 819 | ac_wfuncs=yes |
820 | AC_CHECK_FUNCS(wcslen wmemchr wmemcmp wmemcpy wmemmove wmemset,, \ | |
821 | ac_wfuncs=no) | |
1580b14b | 822 | |
710560e9 | 823 | dnl Checks for names injected into std:: by the c_std headers. |
824 | AC_CHECK_FUNCS(btowc wctob fgetwc fgetwc fgetws fputwc fputws fwide \ | |
825 | fwprintf fwscanf swprintf swscanf vfwprintf vfwscanf vswprintf vswscanf \ | |
826 | vwprintf vwscanf wprintf wscanf getwc getwchar mbsinit mbrlen mbrtowc \ | |
827 | mbsrtowcs wcsrtombs putwc putwchar ungetwc wcrtomb wcstod wcstof wcstol \ | |
828 | wcstoul wcscpy wcsncpy wcscat wcsncat wcscmp wcscoll wcsncmp wcsxfrm \ | |
829 | wcscspn wcsspn wcstok wcsftime wcschr wcspbrk wcsrchr wcsstr,, \ | |
830 | ac_wfuncs=no) | |
6bb18279 | 831 | |
3d1a09b9 | 832 | AC_MSG_CHECKING([for ISO C99 wchar_t support]) |
2475beac | 833 | if test x"$has_weof" = xyes && |
834 | test x"$has_wchar_minmax" = xyes && | |
835 | test x"$ac_wfuncs" = xyes; then | |
3d1a09b9 | 836 | ac_isoC99_wchar_t=yes |
837 | else | |
838 | ac_isoC99_wchar_t=no | |
839 | fi | |
840 | AC_MSG_RESULT($ac_isoC99_wchar_t) | |
1580b14b | 841 | |
3d1a09b9 | 842 | dnl Use iconv for wchar_t to char conversions. As such, check for |
843 | dnl X/Open Portability Guide, version 2 features (XPG2). | |
844 | AC_CHECK_HEADER(iconv.h, ac_has_iconv_h=yes, ac_has_iconv_h=no) | |
845 | AC_CHECK_HEADER(langinfo.h, ac_has_langinfo_h=yes, ac_has_langinfo_h=no) | |
846 | ||
847 | dnl Check for existence of libiconv.a providing XPG2 wchar_t support. | |
848 | AC_CHECK_LIB(iconv, iconv, libiconv="-liconv") | |
849 | ac_save_LIBS="$LIBS" | |
850 | LIBS="$LIBS $libiconv" | |
851 | ||
852 | AC_CHECK_FUNCS(iconv_open iconv_close iconv nl_langinfo, \ | |
853 | ac_XPG2funcs=yes, ac_XPG2funcs=no) | |
1580b14b | 854 | |
3d1a09b9 | 855 | LIBS="$ac_save_LIBS" |
2407da46 | 856 | |
3d1a09b9 | 857 | AC_MSG_CHECKING([for XPG2 wchar_t support]) |
2475beac | 858 | if test x"$ac_has_iconv_h" = xyes && |
859 | test x"$ac_has_langinfo_h" = xyes && | |
860 | test x"$ac_XPG2funcs" = xyes; then | |
3d1a09b9 | 861 | ac_XPG2_wchar_t=yes |
862 | else | |
863 | ac_XPG2_wchar_t=no | |
864 | fi | |
865 | AC_MSG_RESULT($ac_XPG2_wchar_t) | |
0a40c6ad | 866 | |
3d1a09b9 | 867 | dnl At the moment, only enable wchar_t specializations if all the |
868 | dnl above support is present. | |
869 | AC_MSG_CHECKING([for enabled wchar_t specializations]) | |
2475beac | 870 | if test x"$ac_isoC99_wchar_t" = xyes && |
871 | test x"$ac_XPG2_wchar_t" = xyes; then | |
3d1a09b9 | 872 | AC_DEFINE(_GLIBCPP_USE_WCHAR_T) |
873 | AC_MSG_RESULT("yes") | |
0a40c6ad | 874 | else |
3d1a09b9 | 875 | AC_MSG_RESULT("no") |
0a40c6ad | 876 | fi |
0a40c6ad | 877 | else |
3d1a09b9 | 878 | dnl Wide characters disabled by the user. |
879 | AC_MSG_WARN([wchar_t support disabled.]) | |
b9e8095b | 880 | fi |
b9e8095b | 881 | ]) |
882 | ||
883 | ||
b9e8095b | 884 | dnl |
9c6a106c | 885 | dnl Check for special debugging mode; not for production use. |
b9e8095b | 886 | dnl |
887 | dnl GLIBCPP_ENABLE_DEBUG | |
85e50d7b | 888 | dnl --enable-debug sets '-ggdb3 -O0'. |
b9e8095b | 889 | dnl --disable-debug sets '-g' and whatever optimization options the |
890 | dnl compiler can handle. | |
211ecbdf | 891 | dnl + --enable-maintainer-mode automatically defaults this to on. |
b9e8095b | 892 | dnl + Perhaps -D/-U of NDEBUG, DEBUG, DEBUG_ASSERT, ...? |
893 | dnl + Usage: GLIBCPP_ENABLE_DEBUG[(DEFAULT)] | |
894 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
895 | dnl defaults to `no'. | |
896 | AC_DEFUN(GLIBCPP_ENABLE_DEBUG, [dnl | |
897 | define([GLIBCPP_ENABLE_DEBUG_DEFAULT], ifelse($1, yes, yes, no))dnl | |
898 | AC_ARG_ENABLE(debug, | |
899 | changequote(<<, >>)dnl | |
900 | << --enable-debug extra debugging, turn off optimization [default=>>GLIBCPP_ENABLE_DEBUG_DEFAULT], | |
901 | changequote([, ])dnl | |
f1f1b9ae | 902 | [case "${enableval}" in |
b9e8095b | 903 | yes) enable_debug=yes ;; |
904 | no) enable_debug=no ;; | |
905 | *) AC_MSG_ERROR([Unknown argument to enable/disable extra debugging]) ;; | |
906 | esac], | |
907 | enable_debug=GLIBCPP_ENABLE_DEBUG_DEFAULT)dnl | |
f1f1b9ae | 908 | |
b9e8095b | 909 | dnl Option parsed, now set things appropriately |
f1f1b9ae | 910 | case "${enable_debug}" in |
3efdb152 | 911 | yes) |
85e50d7b | 912 | DEBUG_FLAGS='-O0 -ggdb3' |
74996138 | 913 | ;; |
82a73681 | 914 | no) |
1580b14b | 915 | DEBUG_FLAGS='-g' |
82a73681 | 916 | ;; |
b9e8095b | 917 | esac |
c21bc234 | 918 | AC_SUBST(DEBUG_FLAGS) |
b9e8095b | 919 | ]) |
920 | ||
921 | ||
401f263f | 922 | dnl |
923 | dnl Check for "unusual" flags to pass to the compiler while building. | |
924 | dnl | |
925 | dnl GLIBCPP_ENABLE_CXX_FLAGS | |
926 | dnl --enable-cxx-flags='-foo -bar -baz' is a general method for passing | |
927 | dnl experimental flags such as -fhonor-std, -fsquangle, -Dfloat=char, etc. | |
928 | dnl Somehow this same set of flags must be passed when [re]building | |
929 | dnl libgcc. | |
930 | dnl --disable-cxx-flags passes nothing. | |
7524d23a | 931 | dnl + See http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00131.html |
932 | dnl http://gcc.gnu.org/ml/libstdc++/2000-q2/msg00284.html | |
933 | dnl http://gcc.gnu.org/ml/libstdc++/2000-q1/msg00035.html | |
401f263f | 934 | dnl + Usage: GLIBCPP_ENABLE_CXX_FLAGS(default flags) |
acad6b7e | 935 | dnl If "default flags" is an empty string (or "none"), the effect is |
936 | dnl the same as --disable or --enable=no. | |
401f263f | 937 | AC_DEFUN(GLIBCPP_ENABLE_CXX_FLAGS, [dnl |
938 | define([GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], ifelse($1,,, $1))dnl | |
939 | AC_ARG_ENABLE(cxx-flags, | |
940 | changequote(<<, >>)dnl | |
941 | << --enable-cxx-flags=FLAGS pass compiler FLAGS when building library; | |
942 | [default=>>GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT], | |
943 | changequote([, ])dnl | |
944 | [case "x$enableval" in | |
f1f1b9ae | 945 | xyes) |
1580b14b | 946 | AC_MSG_ERROR([--enable-cxx-flags needs compiler flags as arguments]) ;; |
f1f1b9ae | 947 | xno|x) |
1580b14b | 948 | enable_cxx_flags='' ;; |
f1f1b9ae | 949 | *) |
1580b14b | 950 | enable_cxx_flags="$enableval" ;; |
401f263f | 951 | esac], |
f1f1b9ae | 952 | enable_cxx_flags='GLIBCPP_ENABLE_CXX_FLAGS_DEFAULT') |
953 | ||
acad6b7e | 954 | dnl Thinko on my part during design. This kludge is the workaround. |
f1f1b9ae | 955 | if test "$enable_cxx_flags" = "none"; then |
956 | enable_cxx_flags=''; | |
957 | fi | |
958 | ||
acad6b7e | 959 | dnl Run through flags (either default or command-line) and set anything |
960 | dnl extra (e.g., #defines) that must accompany particular g++ options. | |
401f263f | 961 | if test -n "$enable_cxx_flags"; then |
962 | for f in $enable_cxx_flags; do | |
963 | case "$f" in | |
67b61273 | 964 | -fhonor-std) ;; |
401f263f | 965 | -*) ;; |
966 | *) # and we're trying to pass /what/ exactly? | |
967 | AC_MSG_ERROR([compiler flags start with a -]) ;; | |
968 | esac | |
969 | done | |
970 | fi | |
971 | EXTRA_CXX_FLAGS="$enable_cxx_flags" | |
972 | AC_SUBST(EXTRA_CXX_FLAGS) | |
973 | ]) | |
974 | ||
975 | ||
20752884 | 976 | dnl |
977 | dnl Check for which locale library to use: gnu or generic. | |
978 | dnl | |
979 | dnl GLIBCPP_ENABLE_CLOCALE | |
980 | dnl --enable-clocale=gnu sets config/c_locale_gnu.cc and friends | |
981 | dnl --enable-clocale=generic sets config/c_locale_generic.cc and friends | |
982 | dnl | |
983 | dnl default is generic | |
984 | dnl | |
985 | AC_DEFUN(GLIBCPP_ENABLE_CLOCALE, [ | |
986 | AC_MSG_CHECKING([for clocale to use]) | |
987 | AC_ARG_ENABLE(clocale, | |
780eeb66 | 988 | [ --enable-clocale enable model for target locale package. |
989 | --enable-clocale=MODEL use MODEL target-speific locale package. [default=generic] | |
20752884 | 990 | ], |
991 | if test x$enable_clocale = xno; then | |
992 | enable_clocale=generic | |
993 | fi, | |
994 | enable_clocale=generic) | |
995 | ||
996 | enable_clocale_flag=$enable_clocale | |
997 | ||
998 | dnl Check if a valid locale package | |
999 | case x${enable_clocale_flag} in | |
1000 | xgnu) | |
1001 | CLOCALE_H=config/c_locale_gnu.h | |
1002 | CLOCALE_CC=config/c_locale_gnu.cc | |
1003 | AC_MSG_RESULT(gnu) | |
1004 | ;; | |
1005 | xgeneric) | |
1006 | CLOCALE_H=config/c_locale_generic.h | |
1007 | CLOCALE_CC=config/c_locale_generic.cc | |
1008 | AC_MSG_RESULT(generic) | |
1009 | ;; | |
1010 | *) | |
1011 | echo "$enable_clocale is an unknown locale package" 1>&2 | |
1012 | exit 1 | |
1013 | ;; | |
1014 | esac | |
1015 | ||
db42028b | 1016 | AC_SUBST(CLOCALE_H) |
20752884 | 1017 | AC_LINK_FILES($CLOCALE_CC, src/c++locale.cc) |
1018 | ]) | |
1019 | ||
1020 | ||
b9e8095b | 1021 | dnl |
9c6a106c | 1022 | dnl Check for which I/O library to use: libio, or something specific. |
b9e8095b | 1023 | dnl |
1024 | dnl GLIBCPP_ENABLE_CSTDIO | |
1025 | dnl --enable-cstdio=libio sets config/c_io_libio.h and friends | |
1026 | dnl | |
e86566c3 | 1027 | dnl default is stdio |
b9e8095b | 1028 | dnl |
1029 | AC_DEFUN(GLIBCPP_ENABLE_CSTDIO, [ | |
1030 | AC_MSG_CHECKING([for cstdio to use]) | |
1031 | AC_ARG_ENABLE(cstdio, | |
780eeb66 | 1032 | [ --enable-cstdio enable stdio for target io package. |
1033 | --enable-cstdio=LIB use LIB target-speific io package. [default=stdio] | |
16f434af | 1034 | ], |
b9e8095b | 1035 | if test x$enable_cstdio = xno; then |
e86566c3 | 1036 | enable_cstdio=stdio |
b9e8095b | 1037 | fi, |
e86566c3 | 1038 | enable_cstdio=stdio) |
b9e8095b | 1039 | |
1040 | enable_cstdio_flag=$enable_cstdio | |
1041 | ||
1580b14b | 1042 | dnl Check if a valid I/O package |
b9e8095b | 1043 | case x${enable_cstdio_flag} in |
7fdc2989 | 1044 | xlibio) |
27f70a82 | 1045 | CSTDIO_H=config/c_io_libio.h |
49bf30f4 | 1046 | BASIC_FILE_H=config/basic_file_libio.h |
1047 | BASIC_FILE_CC=config/basic_file_libio.cc | |
27f70a82 | 1048 | AC_MSG_RESULT(libio) |
1049 | ||
1050 | # see if we are on a system with libio native (ie, linux) | |
1051 | AC_CHECK_HEADER(libio.h, has_libio=yes, has_libio=no) | |
1052 | ||
1053 | # Need to check and see what version of glibc is being used. If | |
1054 | # it's not glibc-2.2 or higher, then we'll need to go ahead and | |
1055 | # compile most of libio for linux systems. | |
1056 | if test x$has_libio = x"yes"; then | |
1057 | case "$target" in | |
1058 | *-*-linux*) | |
1580b14b | 1059 | AC_MSG_CHECKING([for glibc version >= 2.2]) |
1060 | AC_EGREP_CPP([ok], [ | |
1061 | #include <features.h> | |
1062 | #if __GLIBC__ > 2 || (__GLIBC__ == 2 && __GLIBC_MINOR__ >= 2) | |
1063 | ok | |
1064 | #endif | |
1065 | ], glibc_satisfactory=yes, glibc_satisfactory=no) | |
1066 | AC_MSG_RESULT($glibc_satisfactory) | |
1067 | ;; | |
27f70a82 | 1068 | esac |
1069 | ||
1580b14b | 1070 | # XXX at the moment, admit defeat and force the recompilation |
4e0a0803 | 1071 | # XXX of glibc even on glibc-2.2 systems, because libio is not synched. |
1580b14b | 1072 | glibc_satisfactory=no |
1073 | ||
1074 | if test x$glibc_satisfactory = x"yes"; then | |
1075 | need_libio=no | |
1580b14b | 1076 | need_wlibio=no |
1077 | else | |
1078 | need_libio=yes | |
1580b14b | 1079 | # bkoz XXX need to add checks to enable this |
1080 | # pme XXX here's a first pass at such a check | |
1081 | if test x$enable_c_mbchar != xno; then | |
1082 | need_wlibio=yes | |
1083 | else | |
1084 | need_wlibio=no | |
1085 | fi | |
1086 | fi | |
27f70a82 | 1087 | |
27f70a82 | 1088 | else |
445cdc9a | 1089 | # Using libio, but <libio.h> doesn't exist on the target system. . . |
1580b14b | 1090 | need_libio=yes |
1580b14b | 1091 | # bkoz XXX need to add checks to enable this |
1092 | # pme XXX here's a first pass at such a check | |
1093 | if test x$enable_c_mbchar != xno; then | |
1094 | need_wlibio=yes | |
1095 | else | |
1096 | need_wlibio=no | |
1097 | fi | |
27f70a82 | 1098 | fi |
1099 | ;; | |
7fdc2989 | 1100 | xstdio | x | xno | xnone | xyes) |
1101 | # default | |
e7ccf4bf | 1102 | CSTDIO_H=config/c_io_stdio.h |
49bf30f4 | 1103 | BASIC_FILE_H=config/basic_file_stdio.h |
1104 | BASIC_FILE_CC=config/basic_file_stdio.cc | |
e7ccf4bf | 1105 | AC_MSG_RESULT(stdio) |
27f70a82 | 1106 | |
7fdc2989 | 1107 | # We're not using stdio. |
27f70a82 | 1108 | need_libio=no |
7fdc2989 | 1109 | need_wlibio=no |
27f70a82 | 1110 | ;; |
1111 | *) | |
1112 | echo "$enable_cstdio is an unknown io package" 1>&2 | |
1113 | exit 1 | |
1114 | ;; | |
b9e8095b | 1115 | esac |
db42028b | 1116 | AC_SUBST(CSTDIO_H) |
1117 | AC_SUBST(BASIC_FILE_H) | |
49bf30f4 | 1118 | AC_LINK_FILES($BASIC_FILE_CC, src/basic_file.cc) |
1ce522f2 | 1119 | |
1120 | # 2000-08-04 bkoz hack | |
1121 | CCODECVT_C=config/c_io_libio_codecvt.c | |
db42028b | 1122 | AC_SUBST(CCODECVT_C) |
1ce522f2 | 1123 | # 2000-08-04 bkoz hack |
1580b14b | 1124 | |
02bed483 | 1125 | AM_CONDITIONAL(GLIBCPP_BUILD_LIBIO, |
1126 | test "$need_libio" = yes || test "$need_wlibio" = yes) | |
b9e8095b | 1127 | AM_CONDITIONAL(GLIBCPP_NEED_LIBIO, test "$need_libio" = yes) |
12692474 | 1128 | AM_CONDITIONAL(GLIBCPP_NEED_WLIBIO, test "$need_wlibio" = yes) |
b9f81c86 | 1129 | if test "$need_libio" = yes || test "$need_wlibio" = yes; then |
97d40bd4 | 1130 | libio_la=../libio/libio.la |
b9f81c86 | 1131 | else |
97d40bd4 | 1132 | libio_la= |
b9f81c86 | 1133 | fi |
1134 | AC_SUBST(libio_la) | |
b9e8095b | 1135 | ]) |
1136 | ||
1137 | ||
1138 | dnl | |
6e77e323 | 1139 | dnl Setup to use the gcc gthr.h thread-specific memory and mutex model. |
1140 | dnl We must stage the required headers so that they will be installed | |
1141 | dnl with the library (unlike libgcc, the STL implementation is provided | |
1142 | dnl solely within headers). Since we must not inject random user-space | |
1143 | dnl macro names into user-provided C++ code, we first stage into <file>-in | |
1144 | dnl and process to <file> with an output command. The reason for a two- | |
1145 | dnl stage process here is to correctly handle $srcdir!=$objdir without | |
1146 | dnl having to write complex code (the sed commands to clean the macro | |
5ece00cf | 1147 | dnl namespace are complex and fragile enough as it is). We must also |
1148 | dnl add a relative path so that -I- is supported properly. | |
b9e8095b | 1149 | dnl |
1150 | AC_DEFUN(GLIBCPP_ENABLE_THREADS, [ | |
746ba840 | 1151 | AC_MSG_CHECKING([for thread model used by GCC]) |
1152 | target_thread_file=`$CC -v 2>&1 | sed -n 's/^Thread model: //p'` | |
1153 | AC_MSG_RESULT([$target_thread_file]) | |
b9e8095b | 1154 | |
6e77e323 | 1155 | if test $target_thread_file != single; then |
1156 | AC_DEFINE(HAVE_GTHR_DEFAULT) | |
1157 | AC_DEFINE(_GLIBCPP_SUPPORTS_WEAK, __GXX_WEAK__) | |
1580b14b | 1158 | fi |
db42028b | 1159 | |
1160 | glibcpp_thread_h=gthr-$target_thread_file.h | |
1161 | AC_SUBST(glibcpp_thread_h) | |
b9e8095b | 1162 | ]) |
1163 | ||
1164 | ||
df4b504c | 1165 | dnl |
1166 | dnl Check for exception handling support. If an explicit enable/disable | |
1167 | dnl sjlj exceptions is given, we don't have to detect. Otherwise the | |
1168 | dnl target may or may not support call frame exceptions. | |
1169 | dnl | |
1170 | dnl GLIBCPP_ENABLE_SJLJ_EXCEPTIONS | |
1171 | dnl --enable-sjlj-exceptions forces the use of builtin setjmp. | |
1172 | dnl --disable-sjlj-exceptions forces the use of call frame unwinding. | |
1173 | dnl | |
1174 | dnl Define _GLIBCPP_SJLJ_EXCEPTIONS if the compiler is configured for it. | |
1175 | dnl | |
1176 | AC_DEFUN(GLIBCPP_ENABLE_SJLJ_EXCEPTIONS, [ | |
1177 | AC_MSG_CHECKING([for exception model to use]) | |
1178 | AC_LANG_SAVE | |
1179 | AC_LANG_CPLUSPLUS | |
1180 | AC_ARG_ENABLE(sjlj-exceptions, | |
1181 | [ --enable-sjlj-exceptions force use of builtin_setjmp for exceptions], | |
1182 | [:], | |
1183 | [dnl Botheration. Now we've got to detect the exception model. | |
1184 | dnl Link tests against libgcc.a are problematic since -- at least | |
1185 | dnl as of this writing -- we've not been given proper -L bits for | |
1186 | dnl single-tree newlib and libgloss. | |
1187 | dnl | |
1188 | dnl This is what AC_TRY_COMPILE would do if it didn't delete the | |
1189 | dnl conftest files before we got a change to grep them first. | |
1190 | cat > conftest.$ac_ext << EOF | |
1191 | [#]line __oline__ "configure" | |
1192 | struct S { ~S(); }; | |
1193 | void bar(); | |
1194 | void foo() | |
1195 | { | |
1196 | S s; | |
1197 | bar(); | |
1198 | } | |
1199 | EOF | |
1200 | old_CXXFLAGS="$CXXFLAGS" | |
1201 | CXXFLAGS=-S | |
1202 | if AC_TRY_EVAL(ac_compile); then | |
1203 | if grep _Unwind_SjLj_Resume conftest.s >/dev/null 2>&1 ; then | |
1204 | enable_sjlj_exceptions=yes | |
1205 | elif grep _Unwind_Resume conftest.s >/dev/null 2>&1 ; then | |
1206 | enable_sjlj_exceptions=no | |
1207 | fi | |
1208 | fi | |
1209 | CXXFLAGS="$old_CXXFLAGS" | |
1210 | rm -f conftest*]) | |
1211 | if test x$enable_sjlj_exceptions = xyes; then | |
1212 | AC_DEFINE(_GLIBCPP_SJLJ_EXCEPTIONS, 1, | |
2475beac | 1213 | [Define if the compiler is configured for setjmp/longjmp exceptions.]) |
df4b504c | 1214 | ac_exception_model_name=sjlj |
1215 | elif test x$enable_sjlj_exceptions = xno; then | |
1216 | ac_exception_model_name="call frame" | |
1217 | else | |
1218 | AC_MSG_ERROR([unable to detect exception model]) | |
1219 | fi | |
1220 | AC_LANG_RESTORE | |
1221 | AC_MSG_RESULT($ac_exception_model_name) | |
1222 | ]) | |
1223 | ||
1224 | ||
08078d47 | 1225 | dnl |
1226 | dnl Check for ISO/IEC 9899:1999 "C99" support. | |
1227 | dnl | |
1228 | dnl GLIBCPP_ENABLE_C99 | |
1229 | dnl --enable-c99 defines _GLIBCPP_USE_C99 | |
1230 | dnl --disable-c99 leaves _GLIBCPP_USE_C99 undefined | |
1231 | dnl + Usage: GLIBCPP_ENABLE_C99[(DEFAULT)] | |
1232 | dnl Where DEFAULT is either `yes' or `no'. If omitted, it | |
1233 | dnl defaults to `no'. | |
1234 | dnl + If 'C99' stuff is not available, ignores DEFAULT and sets `no'. | |
1235 | dnl | |
1236 | dnl GLIBCPP_ENABLE_C99 | |
1237 | AC_DEFUN(GLIBCPP_ENABLE_C99, [dnl | |
1238 | define([GLIBCPP_ENABLE_C99_DEFAULT], ifelse($1, yes, yes, no))dnl | |
a31c6285 | 1239 | |
08078d47 | 1240 | AC_ARG_ENABLE(c99, |
1241 | changequote(<<, >>)dnl | |
1242 | <<--enable-c99 turns on 'ISO/IEC 9899:1999 support' [default=>>GLIBCPP_ENABLE_C99_DEFAULT], | |
1243 | changequote([, ])dnl | |
1244 | [case "$enableval" in | |
1245 | yes) enable_c99=yes ;; | |
1246 | no) enable_c99=no ;; | |
1247 | *) AC_MSG_ERROR([Unknown argument to enable/disable C99]) ;; | |
1248 | esac], | |
1249 | enable_c99=GLIBCPP_ENABLE_C99_DEFAULT)dnl | |
1250 | ||
1251 | AC_LANG_SAVE | |
1252 | AC_LANG_CPLUSPLUS | |
a31c6285 | 1253 | |
08078d47 | 1254 | # Check for the existence of <math.h> functions used if C99 is enabled. |
031d710d | 1255 | ac_c99_math=yes; |
c587e7d5 | 1256 | AC_MSG_CHECKING([for ISO C99 support in <math.h>]) |
08078d47 | 1257 | AC_TRY_COMPILE([#include <math.h>],[fpclassify(0.0);],, [ac_c99_math=no]) |
1258 | AC_TRY_COMPILE([#include <math.h>],[isfinite(0.0);],, [ac_c99_math=no]) | |
1259 | AC_TRY_COMPILE([#include <math.h>],[isinf(0.0);],, [ac_c99_math=no]) | |
1260 | AC_TRY_COMPILE([#include <math.h>],[isnan(0.0);],, [ac_c99_math=no]) | |
1261 | AC_TRY_COMPILE([#include <math.h>],[isnormal(0.0);],, [ac_c99_math=no]) | |
1262 | AC_TRY_COMPILE([#include <math.h>],[signbit(0.0);],, [ac_c99_math=no]) | |
a106f8d6 | 1263 | AC_TRY_COMPILE([#include <math.h>],[isgreater(0.0,0.0);],, [ac_c99_math=no]) |
1264 | AC_TRY_COMPILE([#include <math.h>], | |
031d710d | 1265 | [isgreaterequal(0.0,0.0);],, [ac_c99_math=no]) |
a106f8d6 | 1266 | AC_TRY_COMPILE([#include <math.h>],[isless(0.0,0.0);],, [ac_c99_math=no]) |
1267 | AC_TRY_COMPILE([#include <math.h>],[islessequal(0.0,0.0);],,[ac_c99_math=no]) | |
1268 | AC_TRY_COMPILE([#include <math.h>], | |
031d710d | 1269 | [islessgreater(0.0,0.0);],, [ac_c99_math=no]) |
a106f8d6 | 1270 | AC_TRY_COMPILE([#include <math.h>], |
031d710d | 1271 | [isunordered(0.0,0.0);],, [ac_c99_math=no]) |
031d710d | 1272 | AC_MSG_RESULT($ac_c99_math) |
08078d47 | 1273 | |
c872177c | 1274 | # Check for the existence in <stdio.h> of vscanf, et. al. |
1275 | ac_c99_stdio=yes; | |
1276 | AC_MSG_CHECKING([for ISO C99 support in <stdio.h>]) | |
1277 | AC_TRY_COMPILE([#include <stdio.h>], | |
1278 | [snprintf("12", 0, "%i");],, [ac_c99_stdio=no]) | |
1279 | AC_TRY_COMPILE([#include <stdio.h> | |
1280 | #include <stdarg.h> | |
1281 | void foo(char* fmt, ...) | |
1282 | {va_list args; va_start(args, fmt); | |
1283 | vfscanf(stderr, "%i", args);}], | |
2475beac | 1284 | [],, [ac_c99_stdio=no]) |
c872177c | 1285 | AC_TRY_COMPILE([#include <stdio.h> |
1286 | #include <stdarg.h> | |
1287 | void foo(char* fmt, ...) | |
1288 | {va_list args; va_start(args, fmt); | |
1289 | vscanf("%i", args);}], | |
1290 | [],, [ac_c99_stdio=no]) | |
1291 | AC_TRY_COMPILE([#include <stdio.h> | |
1292 | #include <stdarg.h> | |
1293 | void foo(char* fmt, ...) | |
1294 | {va_list args; va_start(args, fmt); | |
1295 | vsnprintf(fmt, 0, "%i", args);}], | |
1296 | [],, [ac_c99_stdio=no]) | |
1297 | AC_TRY_COMPILE([#include <stdio.h> | |
1298 | #include <stdarg.h> | |
1299 | void foo(char* fmt, ...) | |
1300 | {va_list args; va_start(args, fmt); | |
1301 | vsscanf(fmt, "%i", args);}], | |
1302 | [],, [ac_c99_stdio=no]) | |
1303 | AC_MSG_RESULT($ac_c99_stdio) | |
1304 | ||
08078d47 | 1305 | # Check for the existence in <stdlib.h> of lldiv_t, et. al. |
031d710d | 1306 | ac_c99_stdlib=yes; |
dd76f7b5 | 1307 | AC_MSG_CHECKING([for lldiv_t declaration]) |
08078d47 | 1308 | AC_CACHE_VAL(ac_c99_lldiv_t, [ |
1309 | AC_TRY_COMPILE([#include <stdlib.h>], | |
dd76f7b5 | 1310 | [ lldiv_t mydivt;], |
08078d47 | 1311 | [ac_c99_lldiv_t=yes], [ac_c99_lldiv_t=no]) |
dd76f7b5 | 1312 | ]) |
08078d47 | 1313 | AC_MSG_RESULT($ac_c99_lldiv_t) |
c587e7d5 | 1314 | |
1315 | AC_MSG_CHECKING([for ISO C99 support in <stdlib.h>]) | |
c872177c | 1316 | AC_TRY_COMPILE([#include <stdlib.h>], |
1317 | [char* tmp; strtof("gnu", &tmp);],, [ac_c99_stdlib=no]) | |
1318 | AC_TRY_COMPILE([#include <stdlib.h>], | |
1319 | [char* tmp; strtold("gnu", &tmp);],, [ac_c99_stdlib=no]) | |
c587e7d5 | 1320 | AC_TRY_COMPILE([#include <stdlib.h>], |
1321 | [char* tmp; strtoll("gnu", &tmp, 10);],, [ac_c99_stdlib=no]) | |
1322 | AC_TRY_COMPILE([#include <stdlib.h>], | |
1323 | [char* tmp; strtoull("gnu", &tmp, 10);],, [ac_c99_stdlib=no]) | |
1324 | AC_TRY_COMPILE([#include <stdlib.h>], [llabs(10);],, [ac_c99_stdlib=no]) | |
1325 | AC_TRY_COMPILE([#include <stdlib.h>], [lldiv(10,1);],, [ac_c99_stdlib=no]) | |
1326 | AC_TRY_COMPILE([#include <stdlib.h>], [atoll("10");],, [ac_c99_stdlib=no]) | |
c872177c | 1327 | AC_TRY_COMPILE([#include <stdlib.h>], [_Exit(0);],, [ac_c99_stdlib=no]) |
08078d47 | 1328 | if test x"$ac_c99_lldiv_t" = x"no"; then |
1329 | ac_c99_stdlib=no; | |
1330 | fi; | |
031d710d | 1331 | AC_MSG_RESULT($ac_c99_stdlib) |
08078d47 | 1332 | |
1333 | # Check for the existence of <wchar.h> functions used if C99 is enabled. | |
710560e9 | 1334 | # XXX the wchar.h checks should be rolled into the general C99 bits. |
031d710d | 1335 | ac_c99_wchar=yes; |
710560e9 | 1336 | AC_MSG_CHECKING([for additional ISO C99 support in <wchar.h>]) |
031d710d | 1337 | AC_TRY_COMPILE([#include <wchar.h>], |
1338 | [wcstold(L"10.0", NULL);],, [ac_c99_wchar=no]) | |
1339 | AC_TRY_COMPILE([#include <wchar.h>], | |
1340 | [wcstoll(L"10", NULL, 10);],, [ac_c99_wchar=no]) | |
1341 | AC_TRY_COMPILE([#include <wchar.h>], | |
1342 | [wcstoull(L"10", NULL, 10);],, [ac_c99_wchar=no]) | |
031d710d | 1343 | AC_MSG_RESULT($ac_c99_wchar) |
dd76f7b5 | 1344 | |
08078d47 | 1345 | AC_MSG_CHECKING([for enabled ISO C99 support]) |
2475beac | 1346 | if test x"$ac_c99_math" = x"no" || |
1347 | test x"$ac_c99_stdio" = x"no" || | |
1348 | test x"$ac_c99_stdlib" = x"no" || | |
1349 | test x"$ac_c99_wchar" = x"no"; then | |
08078d47 | 1350 | enable_c99=no; |
ed8078fc | 1351 | fi; |
08078d47 | 1352 | AC_MSG_RESULT($enable_c99) |
ed8078fc | 1353 | |
dd76f7b5 | 1354 | # Option parsed, now set things appropriately |
08078d47 | 1355 | if test x"$enable_c99" = x"yes"; then |
1356 | AC_DEFINE(_GLIBCPP_USE_C99) | |
978d7884 | 1357 | fi |
97d40bd4 | 1358 | |
08078d47 | 1359 | AC_LANG_RESTORE |
b9e8095b | 1360 | ]) |
1361 | ||
1362 | ||
6b6f8d4d | 1363 | dnl |
1364 | dnl Check for template specializations for the 'long long' type extension. | |
1365 | dnl NB: Must check for C99 support before calling _GLIBCPP_ENABLE_LONG_LONG | |
1366 | dnl | |
1367 | dnl GLIBCPP_ENABLE_LONG_LONG | |
1368 | dnl --enable-long-long defines _GLIBCPP_USE_LONG_LONG | |
1369 | dnl --disable-long-long leaves _GLIBCPP_USE_LONG_LONG undefined | |
1370 | dnl + Usage: GLIBCPP_ENABLE_LONG_LONG[(DEFAULT)] | |
1371 | dnl Where DEFAULT is either `yes' or `no'. If omitted, it | |
1372 | dnl defaults to `no'. | |
1373 | dnl + If 'long long' stuff is not available, ignores DEFAULT and sets `no'. | |
1374 | dnl | |
1375 | dnl GLIBCPP_ENABLE_LONG_LONG | |
1376 | AC_DEFUN(GLIBCPP_ENABLE_LONG_LONG, [dnl | |
1377 | define([GLIBCPP_ENABLE_LONG_LONG_DEFAULT], ifelse($1, yes, yes, no))dnl | |
1378 | ||
1379 | AC_ARG_ENABLE(long-long, | |
1380 | changequote(<<, >>)dnl | |
1381 | <<--enable-long-long turns on 'long long' [default=>>GLIBCPP_ENABLE_LONG_LONG_DEFAULT], | |
1382 | changequote([, ])dnl | |
1383 | [case "$enableval" in | |
1384 | yes) enable_long_long=yes ;; | |
1385 | no) enable_long_long=no ;; | |
1386 | *) AC_MSG_ERROR([Unknown argument to enable/disable long long]) ;; | |
1387 | esac], | |
1388 | enable_long_long=GLIBCPP_ENABLE_LONG_LONG_DEFAULT)dnl | |
1389 | ||
1390 | # iostreams require strtoll, strtoull to compile. If the | |
1391 | # GLIBCPP_ENABLE_C99 tests found these, and if C99 support is enabled, | |
1392 | # go ahead and allow long long to be used. | |
1393 | if test x"$enable_c99" = x"no"; then | |
1394 | enable_long_long=no; | |
1395 | fi | |
1396 | ||
1397 | # Option parsed, now set things appropriately | |
1398 | AC_MSG_CHECKING([for enabled long long support]) | |
1399 | if test x"$enable_long_long" = xyes; then | |
1400 | AC_DEFINE(_GLIBCPP_USE_LONG_LONG) | |
1401 | fi | |
1402 | AC_MSG_RESULT($enable_long_long) | |
1403 | ]) | |
1404 | ||
1405 | ||
0e97825d | 1406 | dnl |
7fb56759 | 1407 | dnl Check for what kind of C headers to use. |
1408 | dnl | |
1409 | dnl GLIBCPP_ENABLE_CHEADERS | |
1410 | dnl --enable-cheaders= [does stuff]. | |
1411 | dnl --disable-cheaders [does not do anything, really]. | |
1412 | dnl + This will eventually need to be 'c_shadow' by default. | |
1413 | dnl + Usage: GLIBCPP_ENABLE_CHEADERS[(DEFAULT)] | |
1414 | dnl Where DEFAULT is either `c' or `c_std' or 'c_shadow'. | |
1415 | dnl If ommitted, it defaults to `c_std'. | |
1416 | AC_DEFUN(GLIBCPP_ENABLE_CHEADERS, [dnl | |
1417 | define([GLIBCPP_ENABLE_CHEADERS_DEFAULT], ifelse($1, c_std, c_std, c_std))dnl | |
1418 | AC_MSG_CHECKING([for c header strategy to use]) | |
1419 | AC_ARG_ENABLE(cheaders, | |
0e97825d | 1420 | changequote(<<, >>)dnl |
780eeb66 | 1421 | << --enable-cheaders construct "C" header files for g++ [default=>>GLIBCPP_ENABLE_CHEADERS_DEFAULT], |
f1f1b9ae | 1422 | changequote([, ]) |
1423 | [case "$enableval" in | |
7fb56759 | 1424 | c) |
93a3ddb7 | 1425 | enable_cheaders=c |
1580b14b | 1426 | ;; |
7fb56759 | 1427 | c_std) |
93a3ddb7 | 1428 | enable_cheaders=c_std |
1580b14b | 1429 | ;; |
7fb56759 | 1430 | c_shadow) |
93a3ddb7 | 1431 | enable_cheaders=c_shadow |
7fb56759 | 1432 | ;; |
1433 | *) AC_MSG_ERROR([Unknown argument to enable/disable "C" headers]) | |
1580b14b | 1434 | ;; |
f1f1b9ae | 1435 | esac], |
7fb56759 | 1436 | enable_cheaders=GLIBCPP_ENABLE_CHEADERS_DEFAULT) |
1437 | AC_MSG_RESULT($enable_cheaders) | |
f1f1b9ae | 1438 | |
1439 | dnl Option parsed, now set things appropriately | |
7fb56759 | 1440 | case "$enable_cheaders" in |
1441 | c_shadow) | |
1580b14b | 1442 | CSHADOW_FLAGS="-fno-builtin" |
5d2e3b0f | 1443 | C_INCLUDE_DIR='${glibcpp_srcdir}/include/c_shadow' |
8e34227a | 1444 | AC_DEFINE(_GLIBCPP_USE_SHADOW_HEADERS) |
1580b14b | 1445 | ;; |
7fb56759 | 1446 | c_std) |
1447 | CSHADOW_FLAGS="" | |
5d2e3b0f | 1448 | C_INCLUDE_DIR='${glibcpp_srcdir}/include/c_std' |
7fb56759 | 1449 | ;; |
1450 | c) | |
1580b14b | 1451 | CSHADOW_FLAGS="" |
5d2e3b0f | 1452 | C_INCLUDE_DIR='${glibcpp_srcdir}/include/c' |
0e97825d | 1453 | ;; |
f1f1b9ae | 1454 | esac |
b6fba881 | 1455 | |
71dbcf67 | 1456 | AC_SUBST(CSHADOW_FLAGS) |
1457 | AC_SUBST(C_INCLUDE_DIR) | |
7fb56759 | 1458 | AM_CONDITIONAL(GLIBCPP_USE_CSHADOW, test "$enable_cheaders" = c_shadow) |
0e97825d | 1459 | ]) |
b9e8095b | 1460 | |
1580b14b | 1461 | |
1462 | dnl | |
1463 | dnl Check for wide character support. Has the same effect as the option | |
1464 | dnl in gcc's configure, but in a form that autoconf can mess with. | |
1465 | dnl | |
1466 | dnl GLIBCPP_ENABLE_C_MBCHAR | |
1467 | dnl --enable-c-mbchar requests all the wchar_t stuff. | |
1468 | dnl --disable-c-mbchar doesn't. | |
1469 | dnl + Usage: GLIBCPP_ENABLE_C_MBCHAR[(DEFAULT)] | |
1470 | dnl Where DEFAULT is either `yes' or `no'. If ommitted, it | |
1471 | dnl defaults to `no'. | |
1472 | AC_DEFUN(GLIBCPP_ENABLE_C_MBCHAR, [dnl | |
1473 | define([GLIBCPP_ENABLE_C_MBCHAR_DEFAULT], ifelse($1, yes, yes, no))dnl | |
1474 | AC_ARG_ENABLE(c-mbchar, | |
1475 | changequote(<<, >>)dnl | |
1476 | << --enable-c-mbchar enable multibyte (wide) characters [default=>>GLIBCPP_ENABLE_C_MBCHAR_DEFAULT], | |
1477 | changequote([, ])dnl | |
1478 | [case "$enableval" in | |
1479 | yes) enable_c_mbchar=yes ;; | |
1480 | no) enable_c_mbchar=no ;; | |
1481 | *) AC_MSG_ERROR([Unknown argument to enable/disable c-mbchar]) ;; | |
1482 | esac], | |
1483 | enable_c_mbchar=GLIBCPP_ENABLE_C_MBCHAR_DEFAULT)dnl | |
1484 | dnl Option parsed, now other scripts can test enable_c_mbchar for yes/no. | |
1485 | ]) | |
1486 | ||
1487 | ||
71dbcf67 | 1488 | dnl |
1489 | dnl Set up *_INCLUDES and *_INCLUDE_DIR variables for all sundry Makefile.am's. | |
1490 | dnl | |
71dbcf67 | 1491 | dnl TOPLEVEL_INCLUDES |
1492 | dnl LIBMATH_INCLUDES | |
1493 | dnl LIBSUPCXX_INCLUDES | |
1494 | dnl LIBIO_INCLUDES | |
1495 | dnl CSHADOW_INCLUDES | |
1496 | dnl | |
db42028b | 1497 | dnl GLIBCPP_EXPORT_INCLUDES |
71dbcf67 | 1498 | AC_DEFUN(GLIBCPP_EXPORT_INCLUDES, [ |
db42028b | 1499 | # Root level of the build directory include sources. |
1500 | GLIBCPP_INCLUDES="-I${glibcpp_builddir}/include/${target_alias} -I${glibcpp_builddir}/include" | |
71dbcf67 | 1501 | |
b45d00ae | 1502 | # Passed down for canadian crosses. |
db42028b | 1503 | if test x"$CANADIAN" = xyes; then |
b45d00ae | 1504 | TOPLEVEL_INCLUDES='-I$(includedir)' |
1505 | fi | |
71dbcf67 | 1506 | |
1507 | LIBMATH_INCLUDES='-I$(top_srcdir)/libmath' | |
1508 | ||
1509 | LIBSUPCXX_INCLUDES='-I$(top_srcdir)/libsupc++' | |
1510 | ||
db42028b | 1511 | if test x"$need_libio" = xyes; then |
1512 | LIBIO_INCLUDES='-I$(top_builddir)/libio -I$(top_srcdir)/libio' | |
1513 | AC_SUBST(LIBIO_INCLUDES) | |
1514 | fi | |
71dbcf67 | 1515 | |
1516 | # Now, export this to all the little Makefiles.... | |
db42028b | 1517 | AC_SUBST(GLIBCPP_INCLUDES) |
71dbcf67 | 1518 | AC_SUBST(TOPLEVEL_INCLUDES) |
1519 | AC_SUBST(LIBMATH_INCLUDES) | |
1520 | AC_SUBST(LIBSUPCXX_INCLUDES) | |
71dbcf67 | 1521 | ]) |
1522 | ||
1523 | ||
1524 | dnl | |
1525 | dnl Set up *_FLAGS and *FLAGS variables for all sundry Makefile.am's. | |
1526 | dnl | |
1527 | AC_DEFUN(GLIBCPP_EXPORT_FLAGS, [ | |
1528 | # Optimization flags that are probably a good idea for thrill-seekers. Just | |
1529 | # uncomment the lines below and make, everything else is ready to go... | |
1530 | # OPTIMIZE_CXXFLAGS = -O3 -fstrict-aliasing -fvtable-gc | |
1531 | OPTIMIZE_CXXFLAGS= | |
1532 | AC_SUBST(OPTIMIZE_CXXFLAGS) | |
1533 | ||
1534 | WARN_FLAGS='-Wall -Wno-format -W -Wwrite-strings -Winline' | |
1535 | AC_SUBST(WARN_FLAGS) | |
1536 | ]) | |
1537 | ||
6ff3baa3 | 1538 | dnl |
e3bb8f1a | 1539 | dnl GLIBCPP_EXPORT_INSTALL_INFO |
1540 | dnl calculates gxx_install_dir | |
6ff3baa3 | 1541 | dnl exports glibcpp_toolexecdir |
1542 | dnl exports glibcpp_toolexeclibdir | |
780eeb66 | 1543 | dnl exports glibcpp_builddir |
1544 | dnl exports glibcpp_srcdir | |
1545 | dnl exports glibcpp_prefixdir | |
6ff3baa3 | 1546 | dnl |
1547 | dnl Assumes cross_compiling bits already done, and with_cross_host in | |
1548 | dnl particular | |
e3bb8f1a | 1549 | dnl |
6ff3baa3 | 1550 | dnl GLIBCPP_EXPORT_INSTALL_INFO |
e3bb8f1a | 1551 | AC_DEFUN(GLIBCPP_EXPORT_INSTALL_INFO, [ |
1552 | ||
6ff3baa3 | 1553 | glibcpp_toolexecdir=no |
1554 | glibcpp_toolexeclibdir=no | |
1555 | ||
5ffc3b87 | 1556 | # Export build and source directories. |
031d710d | 1557 | # These need to be absolute paths, yet at the same time need to |
1558 | # canonicalize only relative paths, because then amd will not unmount | |
1559 | # drives. Thus the use of PWDCMD: set it to 'pawd' or 'amq -w' if using amd. | |
addac27d | 1560 | glibcpp_builddir=`pwd` |
031d710d | 1561 | case $srcdir in |
1562 | [\\/$]* | ?:[\\/]*) glibcpp_srcdir=${srcdir} ;; | |
1563 | *) glibcpp_srcdir=`cd "$srcdir" && ${PWDCMD-pwd} || echo "$srcdir"` ;; | |
1564 | esac | |
1565 | glibcpp_prefixdir=${prefix} | |
5ffc3b87 | 1566 | |
e3bb8f1a | 1567 | AC_MSG_CHECKING([for interface version number]) |
1568 | libstdcxx_interface=$INTERFACE | |
1569 | AC_MSG_RESULT($libstdcxx_interface) | |
1570 | ||
1571 | # Process the option --with-gxx-include-dir=<path to include-files directory> | |
1572 | AC_MSG_CHECKING([for --with-gxx-include-dir]) | |
1573 | AC_ARG_WITH(gxx-include-dir, | |
780eeb66 | 1574 | [ --with-gxx-include-dir the installation directory for include files], |
e3bb8f1a | 1575 | [case "${withval}" in |
1576 | yes) | |
1577 | AC_MSG_ERROR(Missing directory for --with-gxx-include-dir) | |
1578 | gxx_include_dir=no | |
1579 | ;; | |
1580 | no) | |
1581 | gxx_include_dir=no | |
1582 | ;; | |
1583 | *) | |
1584 | gxx_include_dir=${withval} | |
1585 | ;; | |
1586 | esac], [gxx_include_dir=no]) | |
1587 | AC_MSG_RESULT($gxx_include_dir) | |
1588 | ||
1589 | # Process the option "--enable-version-specific-runtime-libs" | |
1590 | AC_MSG_CHECKING([for --enable-version-specific-runtime-libs]) | |
1591 | AC_ARG_ENABLE(version-specific-runtime-libs, | |
1592 | [ --enable-version-specific-runtime-libs Specify that runtime libraries should be installed in a compiler-specific directory ], | |
1593 | [ version_specific_libs=yes | |
1594 | # Need the gcc compiler version to know where to install libraries | |
1595 | # and header files if --enable-version-specific-runtime-libs option | |
1596 | # is selected. | |
1597 | changequote(,)dnl | |
6ff3baa3 | 1598 | gcc_version_trigger=${srcdir}/../gcc/version.c |
1599 | gcc_version_full=`grep version_string ${gcc_version_trigger} | sed -e 's/.*\"\([^\"]*\)\".*/\1/'` | |
1600 | gcc_version=`echo ${gcc_version_full} | sed -e 's/\([^ ]*\) .*/\1/'` | |
1601 | gxx_include_dir='$(libdir)/gcc-lib/$(target_alias)/'${gcc_version}/include/g++ | |
1602 | glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)' | |
de3b2568 | 1603 | glibcpp_toolexeclibdir='$(toolexecdir)/'${gcc_version}'$(MULTISUBDIR)' |
e3bb8f1a | 1604 | changequote([,])dnl |
e3bb8f1a | 1605 | ],version_specific_libs=no) |
1606 | AC_MSG_RESULT($version_specific_libs) | |
1607 | ||
6ff3baa3 | 1608 | # Default case for install directory for include files. |
e3bb8f1a | 1609 | if test x"$version_specific_libs" = x"no" \ |
6ace2bc6 | 1610 | && test x"$gxx_include_dir" = x"no"; then |
6ff3baa3 | 1611 | gxx_include_dir='$(prefix)'/include/g++-${libstdcxx_interface} |
1612 | fi | |
1613 | ||
1614 | # Calculate glibcpp_toolexecdir, glibcpp_toolexeclibdir | |
1615 | # Install a library built with a cross compiler in tooldir, not libdir. | |
1616 | if test x"$glibcpp_toolexecdir" = x"no"; then | |
2475beac | 1617 | if test -n "$with_cross_host" && |
1618 | test x"$with_cross_host" != x"no"; then | |
6ff3baa3 | 1619 | glibcpp_toolexecdir='$(exec_prefix)/$(target_alias)' |
1620 | glibcpp_toolexeclibdir='$(toolexecdir)/lib$(MULTISUBDIR)' | |
1621 | else | |
1622 | glibcpp_toolexecdir='$(libdir)/gcc-lib/$(target_alias)' | |
1623 | glibcpp_toolexeclibdir='$(libdir)$(MULTISUBDIR)' | |
1624 | fi | |
e3bb8f1a | 1625 | fi |
6ff3baa3 | 1626 | |
1627 | AC_MSG_CHECKING([for install location]) | |
e3bb8f1a | 1628 | AC_MSG_RESULT($gxx_include_dir) |
6ff3baa3 | 1629 | |
5ffc3b87 | 1630 | AC_SUBST(glibcpp_builddir) |
1631 | AC_SUBST(glibcpp_srcdir) | |
1632 | AC_SUBST(glibcpp_prefixdir) | |
e3bb8f1a | 1633 | AC_SUBST(gxx_include_dir) |
6ff3baa3 | 1634 | AC_SUBST(glibcpp_toolexecdir) |
1635 | AC_SUBST(glibcpp_toolexeclibdir) | |
e3bb8f1a | 1636 | ]) |
1637 | ||
1638 | ||
67630a35 | 1639 | # Check whether LC_MESSAGES is available in <locale.h>. |
1640 | # Ulrich Drepper <drepper@cygnus.com>, 1995. | |
1641 | # | |
1642 | # This file file be copied and used freely without restrictions. It can | |
1643 | # be used in projects which are not available under the GNU Public License | |
1644 | # but which still want to provide support for the GNU gettext functionality. | |
1645 | # Please note that the actual code is *not* freely available. | |
1646 | ||
1647 | # serial 1 | |
1648 | ||
bb792608 | 1649 | AC_DEFUN(AC_LC_MESSAGES, [ |
1650 | AC_CHECK_HEADER(locale.h, [ | |
67630a35 | 1651 | AC_CACHE_CHECK([for LC_MESSAGES], ac_cv_val_LC_MESSAGES, |
1652 | [AC_TRY_LINK([#include <locale.h>], [return LC_MESSAGES], | |
1653 | ac_cv_val_LC_MESSAGES=yes, ac_cv_val_LC_MESSAGES=no)]) | |
1654 | if test $ac_cv_val_LC_MESSAGES = yes; then | |
1655 | AC_DEFINE(HAVE_LC_MESSAGES) | |
1656 | fi | |
bb792608 | 1657 | ]) |
1658 | ]) | |
67630a35 | 1659 | |
1660 | ||
1661 | # Check for functions in math library. | |
1662 | # Ulrich Drepper <drepper@cygnus.com>, 1998. | |
1663 | # | |
1664 | # This file can be copied and used freely without restrictions. It can | |
1665 | # be used in projects which are not available under the GNU Public License | |
1666 | # but which still want to provide support for the GNU gettext functionality. | |
1667 | # Please note that the actual code is *not* freely available. | |
1668 | ||
1669 | # serial 1 | |
1670 | ||
1671 | dnl AC_REPLACE_MATHFUNCS(FUNCTION...) | |
1672 | AC_DEFUN(AC_REPLACE_MATHFUNCS, | |
1673 | [AC_CHECK_FUNCS([$1], , [LIBMATHOBJS="$LIBMATHOBJS ${ac_func}.lo"]) | |
1674 | AC_SUBST(LIBMATHOBJS)dnl | |
1675 | ]) | |
1676 | ||
1677 | ||
1678 | # Check for string functions. | |
1679 | # Ulrich Drepper <drepper@cygnus.com>, 1998. | |
1680 | # | |
1681 | # This file can be copied and used freely without restrictions. It can | |
1682 | # be used in projects which are not available under the GNU Public License | |
1683 | # but which still want to provide support for the GNU gettext functionality. | |
1684 | # Please note that the actual code is *not* freely available. | |
1685 | ||
1686 | # serial 1 | |
1687 | ||
1688 | dnl AC_REPLACE_STRINGFUNCS(FUNCTION...) | |
1689 | AC_DEFUN(AC_REPLACE_STRINGFUNCS, | |
1690 | [AC_CHECK_FUNCS([$1], , [LIBSTRINGOBJS="$LIBSTRINGOBJS ${ac_func}.lo"]) | |
1691 | AC_SUBST(LIBSTRINGOBJS)dnl | |
1692 | ]) | |
9de4d810 | 1693 | |
1694 | ||
1695 | dnl This macro searches for a GNU version of make. If a match is found, the | |
1696 | dnl makefile variable `ifGNUmake' is set to the empty string, otherwise it is | |
3e36ed98 | 1697 | dnl set to "#". This is useful for including a special features in a Makefile, |
9de4d810 | 1698 | dnl which cannot be handled by other versions of make. The variable |
1699 | dnl _cv_gnu_make_command is set to the command to invoke GNU make if it exists, | |
1700 | dnl the empty string otherwise. | |
1701 | dnl | |
1702 | dnl Here is an example of its use: | |
1703 | dnl | |
1704 | dnl Makefile.in might contain: | |
1705 | dnl | |
1706 | dnl # A failsafe way of putting a dependency rule into a makefile | |
1707 | dnl $(DEPEND): | |
1708 | dnl $(CC) -MM $(srcdir)/*.c > $(DEPEND) | |
1709 | dnl | |
1710 | dnl @ifGNUmake@ ifeq ($(DEPEND),$(wildcard $(DEPEND))) | |
1711 | dnl @ifGNUmake@ include $(DEPEND) | |
1712 | dnl @ifGNUmake@ endif | |
1713 | dnl | |
1714 | dnl Then configure.in would normally contain: | |
1715 | dnl | |
1716 | dnl CHECK_GNU_MAKE() | |
1717 | dnl AC_OUTPUT(Makefile) | |
1718 | dnl | |
1719 | dnl Then perhaps to cause gnu make to override any other make, we could do | |
1720 | dnl something like this (note that GNU make always looks for GNUmakefile first): | |
1721 | dnl | |
1722 | dnl if ! test x$_cv_gnu_make_command = x ; then | |
1723 | dnl mv Makefile GNUmakefile | |
1724 | dnl echo .DEFAULT: > Makefile ; | |
1725 | dnl echo \ $_cv_gnu_make_command \$@ >> Makefile; | |
1726 | dnl fi | |
1727 | dnl | |
1728 | dnl Then, if any (well almost any) other make is called, and GNU make also | |
1729 | dnl exists, then the other make wraps the GNU make. | |
1730 | dnl | |
1731 | dnl @author John Darrington <j.darrington@elvis.murdoch.edu.au> | |
06f58ac6 | 1732 | dnl @version 1.1 #### replaced Id string now that Id is for lib-v3; pme |
9de4d810 | 1733 | dnl |
1734 | dnl #### Changes for libstdc++-v3: reformatting and linewrapping; prepending | |
1735 | dnl #### GLIBCPP_ to the macro name; adding the :-make fallback in the | |
563ec2b7 | 1736 | dnl #### conditional's subshell (" --version" is not a command), using a |
1737 | dnl #### different option to grep(1). | |
9de4d810 | 1738 | dnl #### -pme |
ca1093bc | 1739 | dnl #### Fixed Bourne shell portability bug (use ${MAKE-make}, not |
1740 | dnl #### ${MAKE:-make}). | |
1741 | dnl #### -msokolov | |
9de4d810 | 1742 | AC_DEFUN( |
1743 | GLIBCPP_CHECK_GNU_MAKE, [AC_CACHE_CHECK( for GNU make,_cv_gnu_make_command, | |
1744 | _cv_gnu_make_command='' ; | |
1745 | dnl Search all the common names for GNU make | |
ca1093bc | 1746 | for a in "${MAKE-make}" make gmake gnumake ; do |
feb36525 | 1747 | if ( $a --version 2> /dev/null | grep -c GNU > /dev/null ) |
563ec2b7 | 1748 | then |
9de4d810 | 1749 | _cv_gnu_make_command=$a ; |
1750 | break; | |
1751 | fi | |
1752 | done ; | |
1753 | ) ; | |
1754 | dnl If there was a GNU version, then set @ifGNUmake@ to the empty | |
1755 | dnl string, '#' otherwise | |
1756 | if test "x$_cv_gnu_make_command" != "x" ; then | |
1757 | ifGNUmake='' ; | |
1758 | else | |
1759 | ifGNUmake='#' ; | |
1760 | fi | |
1761 | AC_SUBST(ifGNUmake) | |
1762 | ]) | |
c9825695 | 1763 | |
0194306c | 1764 | |
1765 | dnl Check for headers for, and arguments to, the setrlimit() function. | |
1766 | dnl Used only in testsuite_hooks.h. | |
1767 | AC_DEFUN(GLIBCPP_CHECK_SETRLIMIT_ancilliary, [ | |
1768 | AC_TRY_COMPILE([#include <sys/resource.h> | |
1769 | #include <unistd.h> | |
1770 | ], [ int f = RLIMIT_$1 ; ], | |
1771 | [glibcpp_mresult=1], [glibcpp_mresult=0]) | |
1772 | AC_DEFINE_UNQUOTED(HAVE_MEMLIMIT_$1, $glibcpp_mresult, | |
1773 | [Only used in build directory testsuite_hooks.h.]) | |
1774 | ]) | |
1775 | AC_DEFUN(GLIBCPP_CHECK_SETRLIMIT, [ | |
1776 | setrlimit_have_needed_headers=yes | |
1777 | AC_CHECK_HEADERS(sys/resource.h unistd.h, | |
1778 | [], | |
1779 | setrlimit_have_needed_headers=no) | |
1780 | # If don't have the headers, then we can't run the tests now, and we | |
1781 | # won't be seeing any of these during testsuite compilation. | |
1782 | if test $setrlimit_have_needed_headers = yes; then | |
1783 | # Can't do these in a loop, else the resulting syntax is wrong. | |
1784 | GLIBCPP_CHECK_SETRLIMIT_ancilliary(DATA) | |
1785 | GLIBCPP_CHECK_SETRLIMIT_ancilliary(RSS) | |
1786 | GLIBCPP_CHECK_SETRLIMIT_ancilliary(VMEM) | |
1787 | GLIBCPP_CHECK_SETRLIMIT_ancilliary(AS) | |
1788 | fi | |
1789 | ]) | |
1790 | ||
1791 | ||
1792 | dnl | |
1793 | dnl Does any necessary configuration of the testsuite directory. Generates | |
1794 | dnl the testsuite_hooks.h header. | |
1795 | dnl | |
1796 | dnl GLIBCPP_CONFIGURE_TESTSUITE [no args] | |
1797 | AC_DEFUN(GLIBCPP_CONFIGURE_TESTSUITE, [ | |
1798 | GLIBCPP_CHECK_SETRLIMIT | |
1799 | ]) | |
1800 | ||
1801 | ||
c9825695 | 1802 | sinclude(../libtool.m4) |
1803 | dnl The lines below arrange for aclocal not to bring an installed | |
1804 | dnl libtool.m4 into aclocal.m4, while still arranging for automake to | |
1805 | dnl add a definition of LIBTOOL to Makefile.in. | |
1806 | ifelse(,,,[AC_SUBST(LIBTOOL) | |
1807 | AC_DEFUN([AM_PROG_LIBTOOL]) | |
1808 | AC_DEFUN([AC_LIBTOOL_DLOPEN]) | |
1809 | AC_DEFUN([AC_PROG_LD]) | |
211ecbdf | 1810 | ]) |
0eab5934 | 1811 | |
08078d47 | 1812 |