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Commit | Line | Data |
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2542439e | 1 | # Process this file with autoreconf to produce a configure script. |
b9e8095b | 2 | |
f4a06a64 | 3 | AC_INIT(package-unused, version-unused,, libstdc++) |
c1e8b3ed | 4 | AC_CONFIG_SRCDIR(src/shared/hashtable-aux.cc) |
68224f8d | 5 | AC_CONFIG_HEADER(config.h) |
2e6388d9 | 6 | |
0b045cf7 | 7 | # This works around the fact that libtool configuration may change LD |
8 | # for this particular configuration, but some shells, instead of | |
9 | # keeping the changes in LD private, export them just because LD is | |
43390bfe | 10 | # exported. Only used at the end of this file. |
68224f8d | 11 | ### am handles this now? ORIGINAL_LD_FOR_MULTILIBS=$LD |
0b045cf7 | 12 | |
68224f8d | 13 | # Find the rest of the source tree framework. |
d947df39 | 14 | AM_ENABLE_MULTILIB(, ..) |
8400ab1c | 15 | |
1b66d30a | 16 | # Gets build, host, target, *_vendor, *_cpu, *_os, etc. |
43390bfe | 17 | # |
18 | # You will slowly go insane if you do not grok the following fact: when | |
19 | # building v3 as part of the compiler, the top-level /target/ becomes the | |
68224f8d | 20 | # library's /host/. configure then causes --target to default to --host, |
43390bfe | 21 | # exactly like any other package using autoconf. Therefore, 'target' and |
22 | # 'host' will always be the same. This makes sense both for native and | |
23 | # cross compilers, just think about it for a little while. :-) | |
24 | # | |
25 | # Also, if v3 is being configured as part of a cross compiler, the top-level | |
26 | # configure script will pass the "real" host as $with_cross_host. | |
27 | # | |
68224f8d | 28 | # Do not delete or change the following two lines. For why, see |
29 | # http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html | |
b9e8095b | 30 | AC_CANONICAL_SYSTEM |
68224f8d | 31 | target_alias=${target_alias-$host_alias} |
32 | ||
33 | # Handy for debugging: | |
34 | #AC_MSG_NOTICE($build / $host / $target / $host_alias / $target_alias); sleep 5 | |
35 | ||
2eb169cd | 36 | if test "$build" != "$host"; then |
37 | # We are being configured with some form of cross compiler. | |
38 | GLIBCXX_IS_NATIVE=false | |
10f7a2cb | 39 | case "$host","$target" in |
40 | # Darwin crosses can use the host system's libraries and headers, | |
41 | # because of the fat library support. Of course, it must be the | |
42 | # same version of Darwin on both sides. Allow the user to | |
43 | # just say --target=foo-darwin without a version number to mean | |
44 | # "the version on this system". | |
45 | *-*-darwin*,*-*-darwin*) | |
46 | hostos=`echo $host | sed 's/.*-darwin/darwin/'` | |
47 | targetos=`echo $target | sed 's/.*-darwin/darwin/'` | |
48 | if test $hostos = $targetos -o $targetos = darwin ; then | |
49 | GLIBCXX_IS_NATIVE=true | |
50 | fi | |
51 | ;; | |
52 | ||
53 | *) | |
54 | GCC_NO_EXECUTABLES | |
55 | ;; | |
56 | esac | |
2eb169cd | 57 | else |
58 | GLIBCXX_IS_NATIVE=true | |
59 | fi | |
60 | ||
68224f8d | 61 | # Sets up automake. Must come after AC_CANONICAL_SYSTEM. Each of the |
62 | # following is magically included in AUTOMAKE_OPTIONS in each Makefile.am. | |
63 | # 1.x: minimum required version | |
64 | # no-define: PACKAGE and VERSION will not be #define'd in config.h (a bunch | |
65 | # of other PACKAGE_* variables will, however, and there's nothing | |
f4a06a64 | 66 | # we can do about that; they come from AC_INIT). |
68224f8d | 67 | # foreign: we don't follow the normal rules for GNU packages (no COPYING |
68 | # file in the top srcdir, etc, etc), so stop complaining. | |
69 | # no-dependencies: turns off auto dependency generation (just for now) | |
5dbeae57 | 70 | # no-dist: we don't want 'dist' and related rules. |
9745c002 | 71 | # -Wall: turns on all automake warnings... |
72 | # -Wno-portability: ...except this one, since GNU make is now required. | |
5dbeae57 | 73 | AM_INIT_AUTOMAKE([1.9.3 no-define foreign no-dependencies no-dist -Wall -Wno-portability -Wno-override]) |
2542439e | 74 | AH_TEMPLATE(PACKAGE, [Name of package]) |
75 | AH_TEMPLATE(VERSION, [Version number of package]) | |
68224f8d | 76 | |
e98472f0 | 77 | # -fno-builtin must be present here so that a non-conflicting form of |
78 | # std::exit can be guessed by AC_PROG_CXX, and used in later tests. | |
79 | ||
e98472f0 | 80 | save_CXXFLAGS="$CXXFLAGS" |
81 | CXXFLAGS="$CXXFLAGS -fno-builtin" | |
82 | AC_PROG_CC | |
83 | AC_PROG_CXX | |
84 | CXXFLAGS="$save_CXXFLAGS" | |
e98472f0 | 85 | |
86 | # Runs configure.host, and assorted other critical bits. Sets | |
68224f8d | 87 | # up critical shell variables. |
88 | GLIBCXX_CONFIGURE | |
89 | ||
eaf4b52d | 90 | # Libtool setup. |
c39f424e | 91 | if test "x${with_newlib}" != "xyes"; then |
92 | AC_LIBTOOL_DLOPEN | |
93 | fi | |
f1f1b9ae | 94 | AM_PROG_LIBTOOL |
8c35d268 | 95 | ACX_LT_HOST_FLAGS |
85e50d7b | 96 | AC_SUBST(enable_shared) |
97 | AC_SUBST(enable_static) | |
7a1b1f49 | 98 | |
b710ec85 | 99 | if test "$enable_vtable_verify" = yes; then |
100 | predep_objects_CXX="${predep_objects_CXX} ${glibcxx_builddir}/../libgcc/vtv_start.o" | |
101 | postdep_objects_CXX="${postdep_objects_CXX} ${glibcxx_builddir}/../libgcc/vtv_end.o" | |
102 | fi | |
103 | ||
104 | ||
eaf4b52d | 105 | # libtool variables for C++ shared and position-independent compiles. |
106 | # | |
107 | # Use glibcxx_lt_pic_flag to designate the automake variable | |
108 | # used to encapsulate the default libtool approach to creating objects | |
109 | # with position-independent code. Default: -prefer-pic. | |
110 | # | |
111 | # Use glibcxx_compiler_shared_flag to designate a compile-time flags for | |
112 | # creating shared objects. Default: -D_GLIBCXX_SHARED. | |
113 | # | |
114 | # Use glibcxx_compiler_pic_flag to designate a compile-time flags for | |
115 | # creating position-independent objects. This varies with the target | |
116 | # hardware and operating system, but is often: -DPIC -fPIC. | |
117 | if test "$enable_shared" = yes; then | |
118 | glibcxx_lt_pic_flag="-prefer-pic" | |
119 | glibcxx_compiler_pic_flag="$lt_prog_compiler_pic_CXX" | |
120 | glibcxx_compiler_shared_flag="-D_GLIBCXX_SHARED" | |
121 | ||
122 | else | |
123 | glibcxx_lt_pic_flag= | |
124 | glibcxx_compiler_pic_flag= | |
125 | glibcxx_compiler_shared_flag= | |
126 | fi | |
127 | AC_SUBST(glibcxx_lt_pic_flag) | |
128 | AC_SUBST(glibcxx_compiler_pic_flag) | |
129 | AC_SUBST(glibcxx_compiler_shared_flag) | |
130 | ||
131 | # Override the libtool's pic_flag and pic_mode. | |
132 | # Do this step after AM_PROG_LIBTOOL, but before AC_OUTPUT. | |
133 | # NB: this impacts --with-pic and --without-pic. | |
134 | lt_prog_compiler_pic_CXX="$glibcxx_compiler_pic_flag $glibcxx_compiler_shared_flag" | |
135 | pic_mode='default' | |
136 | ||
011fed15 | 137 | # Eliminate -lstdc++ addition to postdeps for cross compiles. |
138 | postdeps_CXX=`echo " $postdeps_CXX " | sed 's, -lstdc++ ,,g'` | |
139 | ||
11764568 | 140 | # Possibly disable most of the library. |
c586733c | 141 | ## TODO: Consider skipping unncessary tests altogether in this case, rather |
11764568 | 142 | ## than just ignoring the results. Faster /and/ more correct, win win. |
143 | GLIBCXX_ENABLE_HOSTED | |
144 | ||
d866c65d | 145 | # Enable descriptive messages to standard output on termination. |
146 | GLIBCXX_ENABLE_VERBOSE | |
147 | ||
d0ff4e64 | 148 | # Enable compiler support that doesn't require linking. |
11764568 | 149 | GLIBCXX_ENABLE_PCH($is_hosted) |
0a3d6332 | 150 | GLIBCXX_ENABLE_THREADS |
968fd835 | 151 | GLIBCXX_ENABLE_ATOMIC_BUILTINS |
c8fb3443 | 152 | GLIBCXX_ENABLE_LOCK_POLICY |
a9c001cb | 153 | GLIBCXX_ENABLE_DECIMAL_FLOAT |
a3ee70c2 | 154 | GLIBCXX_ENABLE_INT128_FLOAT128 |
a2803f7a | 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 | |
0a3d6332 | 158 | |
add2055d | 159 | # Checks for compiler support that doesn't require linking. |
0a3d6332 | 160 | GLIBCXX_CHECK_COMPILER_FEATURES |
b9e8095b | 161 | |
25dad4b3 | 162 | # Enable all the variable C++ runtime options that don't require linking. |
5a64d8cf | 163 | GLIBCXX_ENABLE_CSTDIO |
164 | GLIBCXX_ENABLE_CLOCALE | |
0b0e5029 | 165 | GLIBCXX_ENABLE_ALLOCATOR |
68224f8d | 166 | GLIBCXX_ENABLE_CHEADERS($c_model) dnl c_model from configure.host |
5a64d8cf | 167 | GLIBCXX_ENABLE_LONG_LONG([yes]) |
c586733c | 168 | GLIBCXX_ENABLE_WCHAR_T([yes]) |
21b22bc5 | 169 | GLIBCXX_ENABLE_C99([yes]) |
68224f8d | 170 | GLIBCXX_ENABLE_CONCEPT_CHECKS([no]) |
e700cae5 | 171 | GLIBCXX_ENABLE_DEBUG_FLAGS(["-gdwarf-4 -g3 -O0 -D_GLIBCXX_ASSERTIONS"]) |
5a64d8cf | 172 | GLIBCXX_ENABLE_DEBUG([no]) |
6bb3458a | 173 | GLIBCXX_ENABLE_PARALLEL([yes]) |
68224f8d | 174 | GLIBCXX_ENABLE_CXX_FLAGS |
06450f58 | 175 | GLIBCXX_ENABLE_FULLY_DYNAMIC_STRING([no]) |
cb38c7e0 | 176 | GLIBCXX_ENABLE_EXTERN_TEMPLATE([yes]) |
0559575c | 177 | GLIBCXX_ENABLE_PYTHON |
daa87973 | 178 | GLIBCXX_ENABLE_WERROR([no]) |
b710ec85 | 179 | GLIBCXX_ENABLE_VTABLE_VERIFY([no]) |
b9e8095b | 180 | |
add2055d | 181 | # Checks for operating systems support that doesn't require linking. |
b4eb4a64 | 182 | GLIBCXX_CHECK_STDIO_PROTO |
f8b67ee9 | 183 | GLIBCXX_CHECK_MATH11_PROTO |
d0ff4e64 | 184 | GLIBCXX_CHECK_SYSTEM_ERROR |
f8c2da4b | 185 | GLIBCXX_CHECK_UCHAR_H |
ec3959da | 186 | |
fcbe9d5c | 187 | # For the streamoff typedef. |
188 | GLIBCXX_CHECK_INT64_T | |
189 | ||
4f37153a | 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 | ||
d543aa0a | 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 | ||
fcbe9d5c | 208 | # For C99 support to TR1. |
209 | GLIBCXX_CHECK_C99_TR1 | |
210 | ||
ab109df4 | 211 | # For the EOF, SEEK_CUR, and SEEK_END integer constants. |
212 | GLIBCXX_COMPUTE_STDIO_INTEGER_CONSTANTS | |
ec3959da | 213 | |
d6182d17 | 214 | # For gettimeofday support. |
215 | GLIBCXX_CHECK_GETTIMEOFDAY | |
216 | ||
99e43922 | 217 | # For clock_gettime, nanosleep and sched_yield support. |
2da704e6 | 218 | GLIBCXX_ENABLE_LIBSTDCXX_TIME |
d6182d17 | 219 | |
e1150b06 | 220 | # Check for tmpnam which is obsolescent in POSIX.1-2008 |
221 | GLIBCXX_CHECK_TMPNAM | |
222 | ||
1c8ed0e4 | 223 | # For pthread_cond_clockwait |
224 | GLIBCXX_CHECK_PTHREAD_COND_CLOCKWAIT | |
225 | ||
f40a62d0 | 226 | AC_LC_MESSAGES |
227 | ||
f4d90d64 | 228 | # For hardware_concurrency |
229 | AC_CHECK_HEADERS(sys/sysinfo.h) | |
230 | GLIBCXX_CHECK_GET_NPROCS | |
231 | AC_CHECK_HEADERS(unistd.h) | |
232 | GLIBCXX_CHECK_SC_NPROCESSORS_ONLN | |
da22c41a | 233 | GLIBCXX_CHECK_SC_NPROC_ONLN |
234 | GLIBCXX_CHECK_PTHREADS_NUM_PROCESSORS_NP | |
235 | GLIBCXX_CHECK_SYSCTL_HW_NCPU | |
2724b74a | 236 | GLIBCXX_CHECK_SDT_H |
f4d90d64 | 237 | |
4f37153a | 238 | # Check for available headers. |
19368c77 | 239 | AC_CHECK_HEADERS([endian.h execinfo.h float.h fp.h ieeefp.h inttypes.h \ |
240 | locale.h machine/endian.h machine/param.h nan.h stdint.h stdlib.h string.h \ | |
4f37153a | 241 | strings.h sys/ipc.h sys/isa_defs.h sys/machine.h sys/param.h \ |
2724b74a | 242 | sys/resource.h sys/sem.h sys/stat.h sys/time.h sys/types.h unistd.h \ |
de928aaa | 243 | wchar.h wctype.h linux/types.h]) |
244 | ||
245 | AC_CHECK_HEADERS([linux/random.h], [], [], | |
246 | [[#ifdef HAVE_LINUX_TYPES_H | |
247 | # include <linux/types.h> | |
248 | #endif | |
249 | ]]) | |
4f37153a | 250 | |
6bb3458a | 251 | # Only do link tests if native. Else, hardcode. |
2eb169cd | 252 | if $GLIBCXX_IS_NATIVE; then |
b9e8095b | 253 | |
2eb169cd | 254 | # We can do more elaborate tests that assume a working linker. |
255 | CANADIAN=no | |
256 | ||
2eb169cd | 257 | GLIBCXX_CHECK_LINKER_FEATURES |
258 | GLIBCXX_CHECK_MATH_SUPPORT | |
2eb169cd | 259 | GLIBCXX_CHECK_STDLIB_SUPPORT |
260 | ||
da44ccca | 261 | # For /dev/random and /dev/urandom for std::random_device. |
262 | GLIBCXX_CHECK_DEV_RANDOM | |
61edee22 | 263 | |
6b2678bb | 264 | # For TLS support. |
265 | GCC_CHECK_TLS | |
266 | ||
4e2ef785 | 267 | AC_CHECK_FUNCS(__cxa_thread_atexit_impl __cxa_thread_atexit) |
db8ffb40 | 268 | AC_CHECK_FUNCS(aligned_alloc posix_memalign memalign _aligned_malloc) |
d4fd5c49 | 269 | AC_CHECK_FUNCS(_wfopen) |
fb085a7d | 270 | |
99d130bf | 271 | # C11 functions for C++17 library |
272 | AC_CHECK_FUNCS(timespec_get) | |
273 | ||
5995ba3a | 274 | # For Networking TS. |
275 | AC_CHECK_FUNCS(sockatmark) | |
276 | ||
5b0d05cb | 277 | # For iconv support. |
278 | AM_ICONV | |
279 | ||
2eb169cd | 280 | else |
d696329e | 281 | |
43390bfe | 282 | # This lets us hard-code the functionality we know we'll have in the cross |
283 | # target environment. "Let" is a sugar-coated word placed on an especially | |
284 | # dull and tedious hack, actually. | |
285 | # | |
5a64d8cf | 286 | # Here's why GLIBCXX_CHECK_MATH_SUPPORT, and other autoconf macros |
43390bfe | 287 | # that involve linking, can't be used: |
288 | # "cannot open sim-crt0.o" | |
289 | # "cannot open crt0.o" | |
290 | # etc. All this is because there currently exists no unified, consistent | |
291 | # way for top level CC information to be passed down to target directories: | |
292 | # newlib includes, newlib linking info, libgloss versus newlib crt0.o, etc. | |
293 | # When all of that is done, all of this hokey, excessive AC_DEFINE junk for | |
294 | # crosses can be removed. | |
295 | ||
296 | # If Canadian cross, then don't pick up tools from the build directory. | |
2eb169cd | 297 | # Used only in GLIBCXX_EXPORT_INCLUDES. |
68224f8d | 298 | if test -n "$with_cross_host" && |
5495d250 | 299 | test x"$build_alias" != x"$with_cross_host" && |
68224f8d | 300 | test x"$build" != x"$target"; |
301 | then | |
b9e8095b | 302 | CANADIAN=yes |
b9e8095b | 303 | else |
304 | CANADIAN=no | |
b9e8095b | 305 | fi |
306 | ||
49f28cdd | 307 | # Construct crosses by hand, eliminating bits that need ld... |
5a64d8cf | 308 | # GLIBCXX_CHECK_MATH_SUPPORT |
49f28cdd | 309 | |
68224f8d | 310 | # First, test for "known" system libraries. We may be using newlib even |
311 | # on a hosted environment. | |
312 | if test "x${with_newlib}" = "xyes"; then | |
313 | os_include_dir="os/newlib" | |
314 | AC_DEFINE(HAVE_HYPOT) | |
315 | ||
316 | # GLIBCXX_CHECK_STDLIB_SUPPORT | |
e95f1772 | 317 | AC_DEFINE(HAVE_STRTOF) |
68224f8d | 318 | |
319 | AC_DEFINE(HAVE_ACOSF) | |
320 | AC_DEFINE(HAVE_ASINF) | |
321 | AC_DEFINE(HAVE_ATAN2F) | |
322 | AC_DEFINE(HAVE_ATANF) | |
323 | AC_DEFINE(HAVE_CEILF) | |
68224f8d | 324 | AC_DEFINE(HAVE_COSF) |
325 | AC_DEFINE(HAVE_COSHF) | |
326 | AC_DEFINE(HAVE_EXPF) | |
327 | AC_DEFINE(HAVE_FABSF) | |
328 | AC_DEFINE(HAVE_FLOORF) | |
329 | AC_DEFINE(HAVE_FMODF) | |
330 | AC_DEFINE(HAVE_FREXPF) | |
331 | AC_DEFINE(HAVE_LDEXPF) | |
332 | AC_DEFINE(HAVE_LOG10F) | |
333 | AC_DEFINE(HAVE_LOGF) | |
334 | AC_DEFINE(HAVE_MODFF) | |
335 | AC_DEFINE(HAVE_POWF) | |
336 | AC_DEFINE(HAVE_SINF) | |
337 | AC_DEFINE(HAVE_SINHF) | |
338 | AC_DEFINE(HAVE_SQRTF) | |
339 | AC_DEFINE(HAVE_TANF) | |
340 | AC_DEFINE(HAVE_TANHF) | |
90d5bb42 | 341 | |
5b0d05cb | 342 | AC_DEFINE(HAVE_ICONV) |
a3c84e51 | 343 | AC_DEFINE(HAVE_MEMALIGN) |
68224f8d | 344 | else |
f8b17f0f | 345 | GLIBCXX_CROSSCONFIG |
68224f8d | 346 | fi |
49f28cdd | 347 | |
348 | # At some point, we should differentiate between architectures | |
349 | # like x86, which have long double versions, and alpha/powerpc/etc., | |
350 | # which don't. For the time being, punt. | |
351 | if test x"long_double_math_on_this_cpu" = x"yes"; then | |
352 | AC_DEFINE(HAVE_ACOSL) | |
353 | AC_DEFINE(HAVE_ASINL) | |
354 | AC_DEFINE(HAVE_ATAN2L) | |
355 | AC_DEFINE(HAVE_ATANL) | |
356 | AC_DEFINE(HAVE_CEILL) | |
49f28cdd | 357 | AC_DEFINE(HAVE_COSL) |
358 | AC_DEFINE(HAVE_COSHL) | |
359 | AC_DEFINE(HAVE_EXPL) | |
360 | AC_DEFINE(HAVE_FABSL) | |
49f28cdd | 361 | AC_DEFINE(HAVE_FLOORL) |
362 | AC_DEFINE(HAVE_FMODL) | |
363 | AC_DEFINE(HAVE_FREXPL) | |
49f28cdd | 364 | AC_DEFINE(HAVE_LDEXPL) |
365 | AC_DEFINE(HAVE_LOG10L) | |
366 | AC_DEFINE(HAVE_LOGL) | |
367 | AC_DEFINE(HAVE_MODFL) | |
368 | AC_DEFINE(HAVE_POWL) | |
369 | AC_DEFINE(HAVE_SINCOSL) | |
370 | AC_DEFINE(HAVE_SINL) | |
371 | AC_DEFINE(HAVE_SINHL) | |
372 | AC_DEFINE(HAVE_SQRTL) | |
373 | AC_DEFINE(HAVE_TANL) | |
374 | AC_DEFINE(HAVE_TANHL) | |
375 | fi | |
b9e8095b | 376 | fi |
377 | ||
7e5cb4d6 | 378 | # Check for _Unwind_GetIPInfo. |
379 | GCC_CHECK_UNWIND_GETIPINFO | |
380 | ||
cfbdd7de | 381 | GCC_LINUX_FUTEX([AC_DEFINE(HAVE_LINUX_FUTEX, 1, [Define if futex syscall is available.])]) |
382 | ||
12d6de4f | 383 | GCC_HEADER_STDINT(include/gstdint.h) |
384 | ||
5a64d8cf | 385 | GLIBCXX_ENABLE_SYMVERS([yes]) |
377fc3e8 | 386 | AC_SUBST(libtool_VERSION) |
387 | ||
69e5eea5 | 388 | GLIBCXX_ENABLE_LIBSTDCXX_VISIBILITY([yes]) |
0194306c | 389 | |
63f54259 | 390 | GLIBCXX_ENABLE_LIBSTDCXX_DUAL_ABI([yes]) |
391 | GLIBCXX_DEFAULT_ABI | |
60f5701c | 392 | |
d7fbb98b | 393 | ac_ldbl_compat=no |
bb3742bf | 394 | LONG_DOUBLE_COMPAT_FLAGS="-mlong-double-64" |
d7fbb98b | 395 | case "$target" in |
8c3bf67d | 396 | powerpc*-*-linux* | \ |
d7fbb98b | 397 | sparc*-*-linux* | \ |
398 | s390*-*-linux* | \ | |
399 | alpha*-*-linux*) | |
400 | AC_TRY_COMPILE(, [ | |
401 | #if !defined __LONG_DOUBLE_128__ || (defined(__sparc__) && defined(__arch64__)) | |
402 | #error no need for long double compatibility | |
403 | #endif | |
404 | ], [ac_ldbl_compat=yes], [ac_ldbl_compat=no]) | |
405 | if test "$ac_ldbl_compat" = yes; then | |
406 | AC_DEFINE([_GLIBCXX_LONG_DOUBLE_COMPAT],1, | |
407 | [Define if compatibility should be provided for -mlong-double-64.]) | |
408 | port_specific_symbol_files="\$(top_srcdir)/config/os/gnu-linux/ldbl-extra.ver" | |
bb3742bf | 409 | case "$target" in |
410 | powerpc*-*-linux*) | |
411 | LONG_DOUBLE_COMPAT_FLAGS="$LONG_DOUBLE_COMPAT_FLAGS -mno-gnu-attribute" ;; | |
412 | esac | |
d7fbb98b | 413 | fi |
414 | esac | |
bb3742bf | 415 | AC_SUBST(LONG_DOUBLE_COMPAT_FLAGS) |
d7fbb98b | 416 | GLIBCXX_CONDITIONAL(GLIBCXX_LDBL_COMPAT, test $ac_ldbl_compat = yes) |
417 | ||
34f4e39e | 418 | # Check if assembler supports disabling hardware capability support. |
bdb61f32 | 419 | GCC_CHECK_ASSEMBLER_HWCAP |
34f4e39e | 420 | |
bdbf421c | 421 | # Check if assembler supports rdrand opcode. |
422 | GLIBCXX_CHECK_X86_RDRAND | |
91df033f | 423 | # Check if assembler supports rdseed opcode. |
424 | GLIBCXX_CHECK_X86_RDSEED | |
bdbf421c | 425 | |
68224f8d | 426 | # This depends on GLIBCXX_ENABLE_SYMVERS and GLIBCXX_IS_NATIVE. |
5a64d8cf | 427 | GLIBCXX_CONFIGURE_TESTSUITE |
a167a2a4 | 428 | |
3b7b1092 | 429 | # For gthread support. Depends on GLIBCXX_ENABLE_SYMVERS. |
430 | GLIBCXX_CHECK_GTHREADS | |
431 | ||
5924b28e | 432 | # For Filesystem TS. |
e16e2d2c | 433 | AC_CHECK_HEADERS([fcntl.h dirent.h sys/statvfs.h utime.h]) |
5924b28e | 434 | GLIBCXX_ENABLE_FILESYSTEM_TS |
435 | GLIBCXX_CHECK_FILESYSTEM_DEPS | |
436 | ||
322cc423 | 437 | # For Networking TS. |
438 | AC_CHECK_HEADERS([fcntl.h sys/ioctl.h sys/socket.h sys/uio.h poll.h netdb.h arpa/inet.h netinet/in.h netinet/tcp.h]) | |
439 | ||
13143e13 | 440 | # For Transactional Memory TS |
441 | GLIBCXX_CHECK_SIZE_T_MANGLING | |
442 | ||
c45be7f1 | 443 | # Check which release added std::exception_ptr for the target |
444 | GLIBCXX_CHECK_EXCEPTION_PTR_SYMVER | |
445 | ||
e95f1772 | 446 | # Define documentation rules conditionally. |
447 | ||
448 | # See if makeinfo has been installed and is modern enough | |
449 | # that we can use it. | |
450 | ACX_CHECK_PROG_VER([MAKEINFO], [makeinfo], [--version], | |
451 | [GNU texinfo.* \([0-9][0-9.]*\)], | |
452 | [4.[4-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*]) | |
453 | AM_CONDITIONAL(BUILD_INFO, test $gcc_cv_prog_makeinfo_modern = "yes") | |
454 | ||
455 | # Check for doxygen | |
456 | AC_CHECK_PROG([DOXYGEN], doxygen, yes, no) | |
457 | AC_CHECK_PROG([DOT], dot, yes, no) | |
458 | ||
459 | # Check for docbook | |
53ea0887 | 460 | AC_CHECK_PROG([XMLCATALOG], xmlcatalog, yes, no) |
e95f1772 | 461 | AC_CHECK_PROG([XSLTPROC], xsltproc, yes, no) |
462 | AC_CHECK_PROG([XMLLINT], xmllint, yes, no) | |
dca89719 | 463 | GLIBCXX_CONFIGURE_DOCBOOK |
e95f1772 | 464 | |
465 | # Check for xml/html dependencies. | |
466 | AM_CONDITIONAL(BUILD_XML, | |
467 | test $ac_cv_prog_DOXYGEN = "yes" && | |
468 | test $ac_cv_prog_DOT = "yes" && | |
469 | test $ac_cv_prog_XSLTPROC = "yes" && | |
470 | test $ac_cv_prog_XMLLINT = "yes" && | |
471 | test $glibcxx_stylesheets = "yes") | |
472 | ||
473 | AM_CONDITIONAL(BUILD_HTML, | |
474 | test $ac_cv_prog_DOXYGEN = "yes" && | |
475 | test $ac_cv_prog_DOT = "yes" && | |
476 | test $ac_cv_prog_XSLTPROC = "yes" && | |
477 | test $ac_cv_prog_XMLLINT = "yes" && | |
478 | test $glibcxx_stylesheets = "yes") | |
479 | ||
480 | # Check for man dependencies. | |
481 | AM_CONDITIONAL(BUILD_MAN, | |
482 | test $ac_cv_prog_DOXYGEN = "yes" && | |
483 | test $ac_cv_prog_DOT = "yes") | |
484 | ||
cd1be69f | 485 | # Check for pdf dependencies. |
e95f1772 | 486 | AC_CHECK_PROG([DBLATEX], dblatex, yes, no) |
487 | AC_CHECK_PROG([PDFLATEX], pdflatex, yes, no) | |
488 | AM_CONDITIONAL(BUILD_PDF, | |
045c5a74 | 489 | test $ac_cv_prog_DOXYGEN = "yes" && |
490 | test $ac_cv_prog_DOT = "yes" && | |
491 | test $ac_cv_prog_XSLTPROC = "yes" && | |
492 | test $ac_cv_prog_XMLLINT = "yes" && | |
e95f1772 | 493 | test $ac_cv_prog_DBLATEX = "yes" && |
494 | test $ac_cv_prog_PDFLATEX = "yes") | |
495 | ||
61e0574c | 496 | case "$build" in |
497 | *-*-darwin* ) glibcxx_include_dir_notparallel=yes ;; | |
498 | * ) glibcxx_include_dir_notparallel=no ;; | |
499 | esac | |
500 | AM_CONDITIONAL(INCLUDE_DIR_NOTPARALLEL, | |
501 | test $glibcxx_include_dir_notparallel = "yes") | |
e95f1772 | 502 | |
db42028b | 503 | # Propagate the target-specific source directories through the build chain. |
94540c6b | 504 | ATOMICITY_SRCDIR=config/${atomicity_dir} |
505 | ATOMIC_WORD_SRCDIR=config/${atomic_word_dir} | |
6482a45c | 506 | ATOMIC_FLAGS=${atomic_flags} |
7956a9b7 | 507 | CPU_DEFINES_SRCDIR=config/${cpu_defines_dir} |
0d554d4f | 508 | OS_INC_SRCDIR=config/${os_include_dir} |
7c2eae61 | 509 | ERROR_CONSTANTS_SRCDIR=config/${error_constants_dir} |
479a838e | 510 | ABI_TWEAKS_SRCDIR=config/${abi_tweaks_dir} |
a6e71142 | 511 | CPU_OPT_EXT_RANDOM=config/${cpu_opt_ext_random} |
57cfd4fb | 512 | CPU_OPT_BITS_RANDOM=config/${cpu_opt_bits_random} |
94540c6b | 513 | AC_SUBST(ATOMICITY_SRCDIR) |
514 | AC_SUBST(ATOMIC_WORD_SRCDIR) | |
6482a45c | 515 | AC_SUBST(ATOMIC_FLAGS) |
7956a9b7 | 516 | AC_SUBST(CPU_DEFINES_SRCDIR) |
479a838e | 517 | AC_SUBST(ABI_TWEAKS_SRCDIR) |
0d554d4f | 518 | AC_SUBST(OS_INC_SRCDIR) |
7c2eae61 | 519 | AC_SUBST(ERROR_CONSTANTS_SRCDIR) |
a6e71142 | 520 | AC_SUBST(CPU_OPT_EXT_RANDOM) |
57cfd4fb | 521 | AC_SUBST(CPU_OPT_BITS_RANDOM) |
0d554d4f | 522 | |
aa475990 | 523 | |
7bde822d | 524 | # Add CET specific flags if Intel CET is enabled. |
525 | GCC_CET_FLAGS(CET_FLAGS) | |
526 | EXTRA_CXX_FLAGS="$EXTRA_CXX_FLAGS $CET_FLAGS" | |
527 | EXTRA_CFLAGS="$EXTRA_CFLAGS $CET_FLAGS" | |
528 | AC_SUBST(EXTRA_CFLAGS) | |
529 | AC_SUBST(EXTRA_CXX_FLAGS) | |
530 | ||
68224f8d | 531 | # Determine cross-compile flags and AM_CONDITIONALs. |
532 | #AC_SUBST(GLIBCXX_IS_NATIVE) | |
2eb169cd | 533 | #AM_CONDITIONAL(CANADIAN, test $CANADIAN = yes) |
11764568 | 534 | GLIBCXX_EVALUATE_CONDITIONALS |
e95f1772 | 535 | |
42f557a4 | 536 | AC_CACHE_SAVE |
b9e8095b | 537 | |
68224f8d | 538 | if test ${multilib} = yes; then |
b9e8095b | 539 | multilib_arg="--enable-multilib" |
540 | else | |
541 | multilib_arg= | |
542 | fi | |
543 | ||
2eb169cd | 544 | # Export all the install information. |
5a64d8cf | 545 | GLIBCXX_EXPORT_INSTALL_INFO |
8bc04851 | 546 | |
7f713ccf | 547 | # Export all the include and flag information to Makefiles. |
5a64d8cf | 548 | GLIBCXX_EXPORT_INCLUDES |
549 | GLIBCXX_EXPORT_FLAGS | |
71dbcf67 | 550 | |
0812bb06 | 551 | # Determine what GCC version number to use in filesystem paths. |
552 | GCC_BASE_VER | |
553 | ||
68224f8d | 554 | dnl In autoconf 2.5x, AC_OUTPUT is replaced by four AC_CONFIG_* macros, |
555 | dnl which can all be called multiple times as needed, plus one (different) | |
9aab6de7 | 556 | dnl AC_OUTPUT macro. This one lists the files to be created: |
0013707d | 557 | AC_CONFIG_FILES(Makefile) |
68224f8d | 558 | AC_CONFIG_FILES([scripts/testsuite_flags],[chmod +x scripts/testsuite_flags]) |
04f8b8f3 | 559 | AC_CONFIG_FILES([scripts/extract_symvers],[chmod +x scripts/extract_symvers]) |
93e9bf01 | 560 | AC_CONFIG_FILES([doc/xsl/customization.xsl]) |
68224f8d | 561 | |
0013707d | 562 | # Multilibs need MULTISUBDIR defined correctly in certain makefiles so |
563 | # that multilib installs will end up installed in the correct place. | |
564 | # The testsuite needs it for multilib-aware ABI baseline files. | |
565 | # To work around this not being passed down from config-ml.in -> | |
566 | # srcdir/Makefile.am -> srcdir/{src,libsupc++,...}/Makefile.am, manually | |
567 | # append it here. Only modify Makefiles that have just been created. | |
568 | # | |
569 | # Also, get rid of this simulated-VPATH thing that automake does. | |
570 | AC_CONFIG_FILES(AC_FOREACH([DIR], glibcxx_SUBDIRS, [DIR/Makefile ]), | |
571 | [cat > vpsed$$ << \_EOF | |
2eb169cd | 572 | s!`test -f '$<' || echo '$(srcdir)/'`!! |
573 | _EOF | |
0013707d | 574 | sed -f vpsed$$ $ac_file > tmp$$ |
0013707d | 575 | mv tmp$$ $ac_file |
576 | rm vpsed$$ | |
75bad54c | 577 | echo 'MULTISUBDIR =' >> $ac_file |
578 | ml_norecursion=yes | |
579 | . ${multi_basedir}/config-ml.in | |
580 | AS_UNSET([ml_norecursion]) | |
68224f8d | 581 | ]) |
582 | ||
0013707d | 583 | AC_CONFIG_COMMANDS([generate-headers], |
584 | [(cd include && ${MAKE-make} pch_build= )]) | |
585 | ||
68224f8d | 586 | dnl And this actually makes things happen: |
587 | AC_OUTPUT |