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Commit | Line | Data |
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3a24bf5d | 1 | # Process this file with autoreconf to produce a configure script. |
b2dad0e3 | 2 | |
df58e648 | 3 | AC_PREREQ(2.64) |
fbe057bb | 4 | AC_INIT(package-unused, version-unused,, libstdc++) |
8bae34da | 5 | AC_CONFIG_SRCDIR(src/shared/hashtable-aux.cc) |
ff66d28f | 6 | AC_CONFIG_HEADER(config.h) |
e2c20fae | 7 | |
6706f116 AO |
8 | # This works around the fact that libtool configuration may change LD |
9 | # for this particular configuration, but some shells, instead of | |
10 | # keeping the changes in LD private, export them just because LD is | |
2c839a4e | 11 | # exported. Only used at the end of this file. |
ff66d28f | 12 | ### am handles this now? ORIGINAL_LD_FOR_MULTILIBS=$LD |
6706f116 | 13 | |
ff66d28f | 14 | # Find the rest of the source tree framework. |
076e5443 | 15 | AM_ENABLE_MULTILIB(, ..) |
aebb8c22 | 16 | |
58b08ac3 | 17 | # Gets build, host, target, *_vendor, *_cpu, *_os, etc. |
2c839a4e PE |
18 | # |
19 | # You will slowly go insane if you do not grok the following fact: when | |
20 | # building v3 as part of the compiler, the top-level /target/ becomes the | |
ff66d28f | 21 | # library's /host/. configure then causes --target to default to --host, |
2c839a4e PE |
22 | # exactly like any other package using autoconf. Therefore, 'target' and |
23 | # 'host' will always be the same. This makes sense both for native and | |
24 | # cross compilers, just think about it for a little while. :-) | |
25 | # | |
26 | # Also, if v3 is being configured as part of a cross compiler, the top-level | |
27 | # configure script will pass the "real" host as $with_cross_host. | |
28 | # | |
ff66d28f PE |
29 | # Do not delete or change the following two lines. For why, see |
30 | # http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html | |
b2dad0e3 | 31 | AC_CANONICAL_SYSTEM |
ff66d28f PE |
32 | target_alias=${target_alias-$host_alias} |
33 | ||
34 | # Handy for debugging: | |
35 | #AC_MSG_NOTICE($build / $host / $target / $host_alias / $target_alias); sleep 5 | |
36 | ||
0df3f383 PE |
37 | if test "$build" != "$host"; then |
38 | # We are being configured with some form of cross compiler. | |
39 | GLIBCXX_IS_NATIVE=false | |
0646b059 GK |
40 | case "$host","$target" in |
41 | # Darwin crosses can use the host system's libraries and headers, | |
42 | # because of the fat library support. Of course, it must be the | |
43 | # same version of Darwin on both sides. Allow the user to | |
44 | # just say --target=foo-darwin without a version number to mean | |
45 | # "the version on this system". | |
46 | *-*-darwin*,*-*-darwin*) | |
47 | hostos=`echo $host | sed 's/.*-darwin/darwin/'` | |
48 | targetos=`echo $target | sed 's/.*-darwin/darwin/'` | |
49 | if test $hostos = $targetos -o $targetos = darwin ; then | |
50 | GLIBCXX_IS_NATIVE=true | |
51 | fi | |
52 | ;; | |
53 | ||
54 | *) | |
55 | GCC_NO_EXECUTABLES | |
56 | ;; | |
57 | esac | |
0df3f383 PE |
58 | else |
59 | GLIBCXX_IS_NATIVE=true | |
60 | fi | |
61 | ||
ff66d28f PE |
62 | # Sets up automake. Must come after AC_CANONICAL_SYSTEM. Each of the |
63 | # following is magically included in AUTOMAKE_OPTIONS in each Makefile.am. | |
64 | # 1.x: minimum required version | |
65 | # no-define: PACKAGE and VERSION will not be #define'd in config.h (a bunch | |
66 | # of other PACKAGE_* variables will, however, and there's nothing | |
fbe057bb | 67 | # we can do about that; they come from AC_INIT). |
ff66d28f PE |
68 | # foreign: we don't follow the normal rules for GNU packages (no COPYING |
69 | # file in the top srcdir, etc, etc), so stop complaining. | |
70 | # no-dependencies: turns off auto dependency generation (just for now) | |
13917ae3 | 71 | # no-dist: we don't want 'dist' and related rules. |
2d52e9e3 PE |
72 | # -Wall: turns on all automake warnings... |
73 | # -Wno-portability: ...except this one, since GNU make is now required. | |
13917ae3 | 74 | AM_INIT_AUTOMAKE([1.9.3 no-define foreign no-dependencies no-dist -Wall -Wno-portability -Wno-override]) |
3a24bf5d KC |
75 | AH_TEMPLATE(PACKAGE, [Name of package]) |
76 | AH_TEMPLATE(VERSION, [Version number of package]) | |
ff66d28f | 77 | |
ae66da3b RW |
78 | # -fno-builtin must be present here so that a non-conflicting form of |
79 | # std::exit can be guessed by AC_PROG_CXX, and used in later tests. | |
80 | ||
ae66da3b RW |
81 | save_CXXFLAGS="$CXXFLAGS" |
82 | CXXFLAGS="$CXXFLAGS -fno-builtin" | |
83 | AC_PROG_CC | |
84 | AC_PROG_CXX | |
85 | CXXFLAGS="$save_CXXFLAGS" | |
ae66da3b RW |
86 | |
87 | # Runs configure.host, and assorted other critical bits. Sets | |
ff66d28f PE |
88 | # up critical shell variables. |
89 | GLIBCXX_CONFIGURE | |
90 | ||
ac6d1200 | 91 | # Libtool setup. |
be95b355 BS |
92 | if test "x${with_newlib}" != "xyes"; then |
93 | AC_LIBTOOL_DLOPEN | |
94 | fi | |
5780a46b | 95 | AM_PROG_LIBTOOL |
7de6ba7a | 96 | ACX_LT_HOST_FLAGS |
34791641 PE |
97 | AC_SUBST(enable_shared) |
98 | AC_SUBST(enable_static) | |
04e78786 | 99 | |
2077db1b CT |
100 | if test "$enable_vtable_verify" = yes; then |
101 | predep_objects_CXX="${predep_objects_CXX} ${glibcxx_builddir}/../libgcc/vtv_start.o" | |
102 | postdep_objects_CXX="${postdep_objects_CXX} ${glibcxx_builddir}/../libgcc/vtv_end.o" | |
103 | fi | |
104 | ||
105 | ||
ac6d1200 BK |
106 | # libtool variables for C++ shared and position-independent compiles. |
107 | # | |
108 | # Use glibcxx_lt_pic_flag to designate the automake variable | |
109 | # used to encapsulate the default libtool approach to creating objects | |
110 | # with position-independent code. Default: -prefer-pic. | |
111 | # | |
112 | # Use glibcxx_compiler_shared_flag to designate a compile-time flags for | |
113 | # creating shared objects. Default: -D_GLIBCXX_SHARED. | |
114 | # | |
115 | # Use glibcxx_compiler_pic_flag to designate a compile-time flags for | |
116 | # creating position-independent objects. This varies with the target | |
117 | # hardware and operating system, but is often: -DPIC -fPIC. | |
118 | if test "$enable_shared" = yes; then | |
119 | glibcxx_lt_pic_flag="-prefer-pic" | |
120 | glibcxx_compiler_pic_flag="$lt_prog_compiler_pic_CXX" | |
121 | glibcxx_compiler_shared_flag="-D_GLIBCXX_SHARED" | |
122 | ||
123 | else | |
124 | glibcxx_lt_pic_flag= | |
125 | glibcxx_compiler_pic_flag= | |
126 | glibcxx_compiler_shared_flag= | |
127 | fi | |
128 | AC_SUBST(glibcxx_lt_pic_flag) | |
129 | AC_SUBST(glibcxx_compiler_pic_flag) | |
130 | AC_SUBST(glibcxx_compiler_shared_flag) | |
131 | ||
132 | # Override the libtool's pic_flag and pic_mode. | |
133 | # Do this step after AM_PROG_LIBTOOL, but before AC_OUTPUT. | |
134 | # NB: this impacts --with-pic and --without-pic. | |
135 | lt_prog_compiler_pic_CXX="$glibcxx_compiler_pic_flag $glibcxx_compiler_shared_flag" | |
136 | pic_mode='default' | |
137 | ||
a6918ffd RW |
138 | # Eliminate -lstdc++ addition to postdeps for cross compiles. |
139 | postdeps_CXX=`echo " $postdeps_CXX " | sed 's, -lstdc++ ,,g'` | |
140 | ||
92eabea2 | 141 | # Possibly disable most of the library. |
347669a0 | 142 | ## TODO: Consider skipping unncessary tests altogether in this case, rather |
92eabea2 PE |
143 | ## than just ignoring the results. Faster /and/ more correct, win win. |
144 | GLIBCXX_ENABLE_HOSTED | |
145 | ||
5a86d36f SH |
146 | # Enable descriptive messages to standard output on termination. |
147 | GLIBCXX_ENABLE_VERBOSE | |
148 | ||
0646d8a3 | 149 | # Enable compiler support that doesn't require linking. |
92eabea2 | 150 | GLIBCXX_ENABLE_PCH($is_hosted) |
e55d0e35 | 151 | GLIBCXX_ENABLE_THREADS |
f958e3ca | 152 | GLIBCXX_ENABLE_ATOMIC_BUILTINS |
4cdc8761 | 153 | GLIBCXX_ENABLE_DECIMAL_FLOAT |
6d585f01 | 154 | GLIBCXX_ENABLE_INT128_FLOAT128 |
bb59f396 MG |
155 | if test "$enable_float128" = yes; then |
156 | port_specific_symbol_files="$port_specific_symbol_files \$(top_srcdir)/config/abi/pre/float128.ver" | |
157 | fi | |
e55d0e35 | 158 | |
b8c41c8e | 159 | # Checks for compiler support that doesn't require linking. |
e55d0e35 | 160 | GLIBCXX_CHECK_COMPILER_FEATURES |
b2dad0e3 | 161 | |
1894e4c5 | 162 | # Enable all the variable C++ runtime options that don't require linking. |
3d7c150e BK |
163 | GLIBCXX_ENABLE_CSTDIO |
164 | GLIBCXX_ENABLE_CLOCALE | |
8b0d6051 | 165 | GLIBCXX_ENABLE_ALLOCATOR |
ff66d28f | 166 | GLIBCXX_ENABLE_CHEADERS($c_model) dnl c_model from configure.host |
3d7c150e | 167 | GLIBCXX_ENABLE_LONG_LONG([yes]) |
347669a0 | 168 | GLIBCXX_ENABLE_WCHAR_T([yes]) |
8a9b2875 | 169 | GLIBCXX_ENABLE_C99([yes]) |
ff66d28f | 170 | GLIBCXX_ENABLE_CONCEPT_CHECKS([no]) |
56378d0e | 171 | GLIBCXX_ENABLE_DEBUG_FLAGS(["-gdwarf-4 -g3 -O0"]) |
3d7c150e | 172 | GLIBCXX_ENABLE_DEBUG([no]) |
6995087d | 173 | GLIBCXX_ENABLE_PARALLEL([yes]) |
ff66d28f | 174 | GLIBCXX_ENABLE_CXX_FLAGS |
1165dc50 | 175 | GLIBCXX_ENABLE_FULLY_DYNAMIC_STRING([no]) |
ed4f96af | 176 | GLIBCXX_ENABLE_EXTERN_TEMPLATE([yes]) |
2a5d011c | 177 | GLIBCXX_ENABLE_PYTHON |
b124c5c4 | 178 | GLIBCXX_ENABLE_WERROR([yes]) |
2077db1b | 179 | GLIBCXX_ENABLE_VTABLE_VERIFY([no]) |
b2dad0e3 | 180 | |
b8c41c8e | 181 | # Checks for operating systems support that doesn't require linking. |
1b6ce36f | 182 | GLIBCXX_CHECK_STDIO_PROTO |
ef3a7506 | 183 | GLIBCXX_CHECK_MATH11_PROTO |
0646d8a3 | 184 | GLIBCXX_CHECK_SYSTEM_ERROR |
20b5f0b3 | 185 | GLIBCXX_CHECK_UCHAR_H |
974e336b | 186 | |
0f24e8de PC |
187 | # For the streamoff typedef. |
188 | GLIBCXX_CHECK_INT64_T | |
189 | ||
74745ec5 PC |
190 | # For LFS support. |
191 | GLIBCXX_CHECK_LFS | |
192 | ||
193 | # For showmanyc_helper(). | |
194 | AC_CHECK_HEADERS(sys/ioctl.h sys/filio.h) | |
195 | GLIBCXX_CHECK_POLL | |
196 | GLIBCXX_CHECK_S_ISREG_OR_S_IFREG | |
197 | ||
198 | # For xsputn_2(). | |
199 | AC_CHECK_HEADERS(sys/uio.h) | |
200 | GLIBCXX_CHECK_WRITEV | |
201 | ||
5e5f34bf SE |
202 | # Check for fenv.h and complex.h before GLIBCXX_CHECK_C99_TR1 |
203 | # so that the check is done with the C compiler (not C++). | |
204 | # Checking with C++ can break a canadian cross build if either | |
205 | # file does not exist in C but does in C++. | |
206 | AC_CHECK_HEADERS(fenv.h complex.h) | |
207 | ||
0f24e8de PC |
208 | # For C99 support to TR1. |
209 | GLIBCXX_CHECK_C99_TR1 | |
210 | ||
ddc9c40d PC |
211 | # For the EOF, SEEK_CUR, and SEEK_END integer constants. |
212 | GLIBCXX_COMPUTE_STDIO_INTEGER_CONSTANTS | |
974e336b | 213 | |
610870b2 PC |
214 | # For gettimeofday support. |
215 | GLIBCXX_CHECK_GETTIMEOFDAY | |
216 | ||
959d14e1 | 217 | # For clock_gettime, nanosleep and sched_yield support. |
88b1a025 | 218 | GLIBCXX_ENABLE_LIBSTDCXX_TIME |
610870b2 | 219 | |
7370b9df BRF |
220 | # Check for tmpnam which is obsolescent in POSIX.1-2008 |
221 | GLIBCXX_CHECK_TMPNAM | |
222 | ||
99bf8d16 PC |
223 | AC_LC_MESSAGES |
224 | ||
43653c33 JW |
225 | # For hardware_concurrency |
226 | AC_CHECK_HEADERS(sys/sysinfo.h) | |
227 | GLIBCXX_CHECK_GET_NPROCS | |
228 | AC_CHECK_HEADERS(unistd.h) | |
229 | GLIBCXX_CHECK_SC_NPROCESSORS_ONLN | |
5ee360d0 JW |
230 | GLIBCXX_CHECK_SC_NPROC_ONLN |
231 | GLIBCXX_CHECK_PTHREADS_NUM_PROCESSORS_NP | |
232 | GLIBCXX_CHECK_SYSCTL_HW_NCPU | |
d74e340d | 233 | GLIBCXX_CHECK_SDT_H |
43653c33 | 234 | |
74745ec5 | 235 | # Check for available headers. |
a1360f57 SR |
236 | AC_CHECK_HEADERS([endian.h execinfo.h float.h fp.h ieeefp.h inttypes.h \ |
237 | locale.h machine/endian.h machine/param.h nan.h stdint.h stdlib.h string.h \ | |
74745ec5 | 238 | strings.h sys/ipc.h sys/isa_defs.h sys/machine.h sys/param.h \ |
d74e340d | 239 | sys/resource.h sys/sem.h sys/stat.h sys/time.h sys/types.h unistd.h \ |
dac867c9 UB |
240 | wchar.h wctype.h linux/types.h]) |
241 | ||
242 | AC_CHECK_HEADERS([linux/random.h], [], [], | |
243 | [[#ifdef HAVE_LINUX_TYPES_H | |
244 | # include <linux/types.h> | |
245 | #endif | |
246 | ]]) | |
74745ec5 | 247 | |
6995087d | 248 | # Only do link tests if native. Else, hardcode. |
0df3f383 | 249 | if $GLIBCXX_IS_NATIVE; then |
b2dad0e3 | 250 | |
0df3f383 PE |
251 | # We can do more elaborate tests that assume a working linker. |
252 | CANADIAN=no | |
253 | ||
0df3f383 PE |
254 | GLIBCXX_CHECK_LINKER_FEATURES |
255 | GLIBCXX_CHECK_MATH_SUPPORT | |
0df3f383 PE |
256 | GLIBCXX_CHECK_STDLIB_SUPPORT |
257 | ||
1894e4c5 | 258 | # For /dev/random and /dev/urandom for TR1. |
d8bc9819 PC |
259 | GLIBCXX_CHECK_RANDOM_TR1 |
260 | ||
cddfb1c7 BK |
261 | # For TLS support. |
262 | GCC_CHECK_TLS | |
263 | ||
2a792efe | 264 | AC_CHECK_FUNCS(__cxa_thread_atexit_impl __cxa_thread_atexit) |
af63ba4b | 265 | AC_CHECK_FUNCS(aligned_alloc posix_memalign memalign _aligned_malloc) |
bed152e3 | 266 | |
5f34ed87 BK |
267 | # For iconv support. |
268 | AM_ICONV | |
269 | ||
0df3f383 | 270 | else |
eebc608e | 271 | |
2c839a4e PE |
272 | # This lets us hard-code the functionality we know we'll have in the cross |
273 | # target environment. "Let" is a sugar-coated word placed on an especially | |
274 | # dull and tedious hack, actually. | |
275 | # | |
3d7c150e | 276 | # Here's why GLIBCXX_CHECK_MATH_SUPPORT, and other autoconf macros |
2c839a4e PE |
277 | # that involve linking, can't be used: |
278 | # "cannot open sim-crt0.o" | |
279 | # "cannot open crt0.o" | |
280 | # etc. All this is because there currently exists no unified, consistent | |
281 | # way for top level CC information to be passed down to target directories: | |
282 | # newlib includes, newlib linking info, libgloss versus newlib crt0.o, etc. | |
283 | # When all of that is done, all of this hokey, excessive AC_DEFINE junk for | |
284 | # crosses can be removed. | |
285 | ||
286 | # If Canadian cross, then don't pick up tools from the build directory. | |
0df3f383 | 287 | # Used only in GLIBCXX_EXPORT_INCLUDES. |
ff66d28f | 288 | if test -n "$with_cross_host" && |
f5cf58dd | 289 | test x"$build_alias" != x"$with_cross_host" && |
ff66d28f PE |
290 | test x"$build" != x"$target"; |
291 | then | |
b2dad0e3 | 292 | CANADIAN=yes |
b2dad0e3 BK |
293 | else |
294 | CANADIAN=no | |
b2dad0e3 BK |
295 | fi |
296 | ||
75940b88 | 297 | # Construct crosses by hand, eliminating bits that need ld... |
3d7c150e | 298 | # GLIBCXX_CHECK_MATH_SUPPORT |
75940b88 | 299 | |
ff66d28f PE |
300 | # First, test for "known" system libraries. We may be using newlib even |
301 | # on a hosted environment. | |
302 | if test "x${with_newlib}" = "xyes"; then | |
303 | os_include_dir="os/newlib" | |
304 | AC_DEFINE(HAVE_HYPOT) | |
305 | ||
306 | # GLIBCXX_CHECK_STDLIB_SUPPORT | |
b25e6b79 | 307 | AC_DEFINE(HAVE_STRTOF) |
ff66d28f PE |
308 | |
309 | AC_DEFINE(HAVE_ACOSF) | |
310 | AC_DEFINE(HAVE_ASINF) | |
311 | AC_DEFINE(HAVE_ATAN2F) | |
312 | AC_DEFINE(HAVE_ATANF) | |
313 | AC_DEFINE(HAVE_CEILF) | |
ff66d28f PE |
314 | AC_DEFINE(HAVE_COSF) |
315 | AC_DEFINE(HAVE_COSHF) | |
316 | AC_DEFINE(HAVE_EXPF) | |
317 | AC_DEFINE(HAVE_FABSF) | |
318 | AC_DEFINE(HAVE_FLOORF) | |
319 | AC_DEFINE(HAVE_FMODF) | |
320 | AC_DEFINE(HAVE_FREXPF) | |
321 | AC_DEFINE(HAVE_LDEXPF) | |
322 | AC_DEFINE(HAVE_LOG10F) | |
323 | AC_DEFINE(HAVE_LOGF) | |
324 | AC_DEFINE(HAVE_MODFF) | |
325 | AC_DEFINE(HAVE_POWF) | |
326 | AC_DEFINE(HAVE_SINF) | |
327 | AC_DEFINE(HAVE_SINHF) | |
328 | AC_DEFINE(HAVE_SQRTF) | |
329 | AC_DEFINE(HAVE_TANF) | |
330 | AC_DEFINE(HAVE_TANHF) | |
517da0ce | 331 | |
5f34ed87 | 332 | AC_DEFINE(HAVE_ICONV) |
7be8d663 | 333 | AC_DEFINE(HAVE_MEMALIGN) |
ff66d28f | 334 | else |
c41f82b2 | 335 | GLIBCXX_CROSSCONFIG |
ff66d28f | 336 | fi |
75940b88 SE |
337 | |
338 | # At some point, we should differentiate between architectures | |
339 | # like x86, which have long double versions, and alpha/powerpc/etc., | |
340 | # which don't. For the time being, punt. | |
341 | if test x"long_double_math_on_this_cpu" = x"yes"; then | |
342 | AC_DEFINE(HAVE_ACOSL) | |
343 | AC_DEFINE(HAVE_ASINL) | |
344 | AC_DEFINE(HAVE_ATAN2L) | |
345 | AC_DEFINE(HAVE_ATANL) | |
346 | AC_DEFINE(HAVE_CEILL) | |
75940b88 SE |
347 | AC_DEFINE(HAVE_COSL) |
348 | AC_DEFINE(HAVE_COSHL) | |
349 | AC_DEFINE(HAVE_EXPL) | |
350 | AC_DEFINE(HAVE_FABSL) | |
75940b88 SE |
351 | AC_DEFINE(HAVE_FLOORL) |
352 | AC_DEFINE(HAVE_FMODL) | |
353 | AC_DEFINE(HAVE_FREXPL) | |
75940b88 SE |
354 | AC_DEFINE(HAVE_LDEXPL) |
355 | AC_DEFINE(HAVE_LOG10L) | |
356 | AC_DEFINE(HAVE_LOGL) | |
357 | AC_DEFINE(HAVE_MODFL) | |
358 | AC_DEFINE(HAVE_POWL) | |
359 | AC_DEFINE(HAVE_SINCOSL) | |
360 | AC_DEFINE(HAVE_SINL) | |
361 | AC_DEFINE(HAVE_SINHL) | |
362 | AC_DEFINE(HAVE_SQRTL) | |
363 | AC_DEFINE(HAVE_TANL) | |
364 | AC_DEFINE(HAVE_TANHL) | |
365 | fi | |
b2dad0e3 BK |
366 | fi |
367 | ||
bc3f0248 SE |
368 | # Check for _Unwind_GetIPInfo. |
369 | GCC_CHECK_UNWIND_GETIPINFO | |
370 | ||
0f3e711e JJ |
371 | GCC_LINUX_FUTEX([AC_DEFINE(HAVE_LINUX_FUTEX, 1, [Define if futex syscall is available.])]) |
372 | ||
ed0840ba AT |
373 | GCC_HEADER_STDINT(include/gstdint.h) |
374 | ||
3d7c150e | 375 | GLIBCXX_ENABLE_SYMVERS([yes]) |
2799d972 BK |
376 | AC_SUBST(libtool_VERSION) |
377 | ||
dbe17524 | 378 | GLIBCXX_ENABLE_LIBSTDCXX_VISIBILITY([yes]) |
fe413112 | 379 | |
34a2b755 JW |
380 | GLIBCXX_ENABLE_LIBSTDCXX_DUAL_ABI([yes]) |
381 | GLIBCXX_DEFAULT_ABI | |
375f837b | 382 | |
6defecc2 | 383 | ac_ldbl_compat=no |
6d49b790 | 384 | LONG_DOUBLE_COMPAT_FLAGS="-mlong-double-64" |
6defecc2 | 385 | case "$target" in |
f7cc5390 | 386 | powerpc*-*-linux* | \ |
6defecc2 JJ |
387 | sparc*-*-linux* | \ |
388 | s390*-*-linux* | \ | |
389 | alpha*-*-linux*) | |
390 | AC_TRY_COMPILE(, [ | |
391 | #if !defined __LONG_DOUBLE_128__ || (defined(__sparc__) && defined(__arch64__)) | |
392 | #error no need for long double compatibility | |
393 | #endif | |
394 | ], [ac_ldbl_compat=yes], [ac_ldbl_compat=no]) | |
395 | if test "$ac_ldbl_compat" = yes; then | |
396 | AC_DEFINE([_GLIBCXX_LONG_DOUBLE_COMPAT],1, | |
397 | [Define if compatibility should be provided for -mlong-double-64.]) | |
398 | port_specific_symbol_files="\$(top_srcdir)/config/os/gnu-linux/ldbl-extra.ver" | |
6d49b790 AM |
399 | case "$target" in |
400 | powerpc*-*-linux*) | |
401 | LONG_DOUBLE_COMPAT_FLAGS="$LONG_DOUBLE_COMPAT_FLAGS -mno-gnu-attribute" ;; | |
402 | esac | |
6defecc2 JJ |
403 | fi |
404 | esac | |
6d49b790 | 405 | AC_SUBST(LONG_DOUBLE_COMPAT_FLAGS) |
6defecc2 JJ |
406 | GLIBCXX_CONDITIONAL(GLIBCXX_LDBL_COMPAT, test $ac_ldbl_compat = yes) |
407 | ||
9520425b | 408 | # Check if assembler supports disabling hardware capability support. |
1ec62aa9 | 409 | GCC_CHECK_ASSEMBLER_HWCAP |
9520425b | 410 | |
3ca6351d UD |
411 | # Check if assembler supports rdrand opcode. |
412 | GLIBCXX_CHECK_X86_RDRAND | |
413 | ||
ff66d28f | 414 | # This depends on GLIBCXX_ENABLE_SYMVERS and GLIBCXX_IS_NATIVE. |
3d7c150e | 415 | GLIBCXX_CONFIGURE_TESTSUITE |
c4c064e7 | 416 | |
bae868fb RO |
417 | # For gthread support. Depends on GLIBCXX_ENABLE_SYMVERS. |
418 | GLIBCXX_CHECK_GTHREADS | |
419 | ||
0ca7ba9a | 420 | # For Filesystem TS. |
bf53e6a9 | 421 | AC_CHECK_HEADERS([fcntl.h dirent.h sys/statvfs.h utime.h]) |
0ca7ba9a JW |
422 | GLIBCXX_ENABLE_FILESYSTEM_TS |
423 | GLIBCXX_CHECK_FILESYSTEM_DEPS | |
424 | ||
a04d5fc9 TR |
425 | # For Transactional Memory TS |
426 | GLIBCXX_CHECK_SIZE_T_MANGLING | |
427 | ||
ed3cb497 PN |
428 | # Check which release added std::exception_ptr for the target |
429 | GLIBCXX_CHECK_EXCEPTION_PTR_SYMVER | |
430 | ||
b25e6b79 BK |
431 | # Define documentation rules conditionally. |
432 | ||
433 | # See if makeinfo has been installed and is modern enough | |
434 | # that we can use it. | |
435 | ACX_CHECK_PROG_VER([MAKEINFO], [makeinfo], [--version], | |
436 | [GNU texinfo.* \([0-9][0-9.]*\)], | |
437 | [4.[4-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*]) | |
438 | AM_CONDITIONAL(BUILD_INFO, test $gcc_cv_prog_makeinfo_modern = "yes") | |
439 | ||
440 | # Check for doxygen | |
441 | AC_CHECK_PROG([DOXYGEN], doxygen, yes, no) | |
442 | AC_CHECK_PROG([DOT], dot, yes, no) | |
443 | ||
444 | # Check for docbook | |
445 | AC_CHECK_PROG([XSLTPROC], xsltproc, yes, no) | |
446 | AC_CHECK_PROG([XMLLINT], xmllint, yes, no) | |
b329dd10 | 447 | GLIBCXX_CONFIGURE_DOCBOOK |
b25e6b79 BK |
448 | |
449 | # Check for xml/html dependencies. | |
450 | AM_CONDITIONAL(BUILD_XML, | |
451 | test $ac_cv_prog_DOXYGEN = "yes" && | |
452 | test $ac_cv_prog_DOT = "yes" && | |
453 | test $ac_cv_prog_XSLTPROC = "yes" && | |
454 | test $ac_cv_prog_XMLLINT = "yes" && | |
455 | test $glibcxx_stylesheets = "yes") | |
456 | ||
457 | AM_CONDITIONAL(BUILD_HTML, | |
458 | test $ac_cv_prog_DOXYGEN = "yes" && | |
459 | test $ac_cv_prog_DOT = "yes" && | |
460 | test $ac_cv_prog_XSLTPROC = "yes" && | |
461 | test $ac_cv_prog_XMLLINT = "yes" && | |
462 | test $glibcxx_stylesheets = "yes") | |
463 | ||
464 | # Check for man dependencies. | |
465 | AM_CONDITIONAL(BUILD_MAN, | |
466 | test $ac_cv_prog_DOXYGEN = "yes" && | |
467 | test $ac_cv_prog_DOT = "yes") | |
468 | ||
43fe49ec | 469 | # Check for pdf dependencies. |
b25e6b79 BK |
470 | AC_CHECK_PROG([DBLATEX], dblatex, yes, no) |
471 | AC_CHECK_PROG([PDFLATEX], pdflatex, yes, no) | |
472 | AM_CONDITIONAL(BUILD_PDF, | |
473 | test $ac_cv_prog_DBLATEX = "yes" && | |
474 | test $ac_cv_prog_PDFLATEX = "yes") | |
475 | ||
51f174c0 JW |
476 | case "$build" in |
477 | *-*-darwin* ) glibcxx_include_dir_notparallel=yes ;; | |
478 | * ) glibcxx_include_dir_notparallel=no ;; | |
479 | esac | |
480 | AM_CONDITIONAL(INCLUDE_DIR_NOTPARALLEL, | |
481 | test $glibcxx_include_dir_notparallel = "yes") | |
b25e6b79 | 482 | |
4a9d5109 | 483 | # Propagate the target-specific source directories through the build chain. |
2c5d0ae8 BK |
484 | ATOMICITY_SRCDIR=config/${atomicity_dir} |
485 | ATOMIC_WORD_SRCDIR=config/${atomic_word_dir} | |
c2ba9709 | 486 | ATOMIC_FLAGS=${atomic_flags} |
4b90c838 | 487 | CPU_DEFINES_SRCDIR=config/${cpu_defines_dir} |
cc5112c9 | 488 | OS_INC_SRCDIR=config/${os_include_dir} |
e4bf5dfc | 489 | ERROR_CONSTANTS_SRCDIR=config/${error_constants_dir} |
1568430f | 490 | ABI_TWEAKS_SRCDIR=config/${abi_tweaks_dir} |
9bf714c2 | 491 | CPU_OPT_EXT_RANDOM=config/${cpu_opt_ext_random} |
48c7b524 | 492 | CPU_OPT_BITS_RANDOM=config/${cpu_opt_bits_random} |
2c5d0ae8 BK |
493 | AC_SUBST(ATOMICITY_SRCDIR) |
494 | AC_SUBST(ATOMIC_WORD_SRCDIR) | |
c2ba9709 | 495 | AC_SUBST(ATOMIC_FLAGS) |
4b90c838 | 496 | AC_SUBST(CPU_DEFINES_SRCDIR) |
1568430f | 497 | AC_SUBST(ABI_TWEAKS_SRCDIR) |
cc5112c9 | 498 | AC_SUBST(OS_INC_SRCDIR) |
e4bf5dfc | 499 | AC_SUBST(ERROR_CONSTANTS_SRCDIR) |
9bf714c2 | 500 | AC_SUBST(CPU_OPT_EXT_RANDOM) |
48c7b524 | 501 | AC_SUBST(CPU_OPT_BITS_RANDOM) |
cc5112c9 | 502 | |
9268b7cb | 503 | |
36101de9 IT |
504 | # Add CET specific flags if Intel CET is enabled. |
505 | GCC_CET_FLAGS(CET_FLAGS) | |
506 | EXTRA_CXX_FLAGS="$EXTRA_CXX_FLAGS $CET_FLAGS" | |
507 | EXTRA_CFLAGS="$EXTRA_CFLAGS $CET_FLAGS" | |
508 | AC_SUBST(EXTRA_CFLAGS) | |
509 | AC_SUBST(EXTRA_CXX_FLAGS) | |
510 | ||
ff66d28f PE |
511 | # Determine cross-compile flags and AM_CONDITIONALs. |
512 | #AC_SUBST(GLIBCXX_IS_NATIVE) | |
0df3f383 | 513 | #AM_CONDITIONAL(CANADIAN, test $CANADIAN = yes) |
92eabea2 | 514 | GLIBCXX_EVALUATE_CONDITIONALS |
b25e6b79 | 515 | |
5e53dba6 | 516 | AC_CACHE_SAVE |
b2dad0e3 | 517 | |
ff66d28f | 518 | if test ${multilib} = yes; then |
b2dad0e3 BK |
519 | multilib_arg="--enable-multilib" |
520 | else | |
521 | multilib_arg= | |
522 | fi | |
523 | ||
0df3f383 | 524 | # Export all the install information. |
3d7c150e | 525 | GLIBCXX_EXPORT_INSTALL_INFO |
1fd2f510 | 526 | |
6aa43d99 | 527 | # Export all the include and flag information to Makefiles. |
3d7c150e BK |
528 | GLIBCXX_EXPORT_INCLUDES |
529 | GLIBCXX_EXPORT_FLAGS | |
e466dc8a | 530 | |
3c36aa6b JJ |
531 | # Determine what GCC version number to use in filesystem paths. |
532 | GCC_BASE_VER | |
533 | ||
ff66d28f PE |
534 | dnl In autoconf 2.5x, AC_OUTPUT is replaced by four AC_CONFIG_* macros, |
535 | dnl which can all be called multiple times as needed, plus one (different) | |
65fc9769 | 536 | dnl AC_OUTPUT macro. This one lists the files to be created: |
6330e1d9 | 537 | AC_CONFIG_FILES(Makefile) |
ff66d28f | 538 | AC_CONFIG_FILES([scripts/testsuite_flags],[chmod +x scripts/testsuite_flags]) |
e1208a57 | 539 | AC_CONFIG_FILES([scripts/extract_symvers],[chmod +x scripts/extract_symvers]) |
8d24c975 | 540 | AC_CONFIG_FILES([doc/xsl/customization.xsl]) |
ff66d28f | 541 | |
6330e1d9 RW |
542 | # Multilibs need MULTISUBDIR defined correctly in certain makefiles so |
543 | # that multilib installs will end up installed in the correct place. | |
544 | # The testsuite needs it for multilib-aware ABI baseline files. | |
545 | # To work around this not being passed down from config-ml.in -> | |
546 | # srcdir/Makefile.am -> srcdir/{src,libsupc++,...}/Makefile.am, manually | |
547 | # append it here. Only modify Makefiles that have just been created. | |
548 | # | |
549 | # Also, get rid of this simulated-VPATH thing that automake does. | |
550 | AC_CONFIG_FILES(AC_FOREACH([DIR], glibcxx_SUBDIRS, [DIR/Makefile ]), | |
551 | [cat > vpsed$$ << \_EOF | |
0df3f383 PE |
552 | s!`test -f '$<' || echo '$(srcdir)/'`!! |
553 | _EOF | |
6330e1d9 | 554 | sed -f vpsed$$ $ac_file > tmp$$ |
6330e1d9 RW |
555 | mv tmp$$ $ac_file |
556 | rm vpsed$$ | |
d4e0a1c0 L |
557 | echo 'MULTISUBDIR =' >> $ac_file |
558 | ml_norecursion=yes | |
559 | . ${multi_basedir}/config-ml.in | |
560 | AS_UNSET([ml_norecursion]) | |
ff66d28f PE |
561 | ]) |
562 | ||
6330e1d9 RW |
563 | AC_CONFIG_COMMANDS([generate-headers], |
564 | [(cd include && ${MAKE-make} pch_build= )]) | |
565 | ||
ff66d28f PE |
566 | dnl And this actually makes things happen: |
567 | AC_OUTPUT |