configure.ac revision 1.1.1.7
1 # Process this file with autoreconf to produce a configure script. 2 3 AC_PREREQ(2.64) 4 AC_INIT(package-unused, version-unused,, libstdc++) 5 AC_CONFIG_SRCDIR(src/shared/hashtable-aux.cc) 6 AC_CONFIG_HEADER(config.h) 7 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 11 # exported. Only used at the end of this file. 12 ### am handles this now? ORIGINAL_LD_FOR_MULTILIBS=$LD 13 14 # Find the rest of the source tree framework. 15 AM_ENABLE_MULTILIB(, ..) 16 17 # Gets build, host, target, *_vendor, *_cpu, *_os, etc. 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 21 # library's /host/. configure then causes --target to default to --host, 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 $with_cross_host. 28 # 29 # Do not delete or change the following two lines. For why, see 30 # http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html 31 AC_CANONICAL_SYSTEM 32 target_alias=${target_alias-$host_alias} 33 34 # Handy for debugging: 35 #AC_MSG_NOTICE($build / $host / $target / $host_alias / $target_alias); sleep 5 36 37 if test "$build" != "$host"; then 38 # We are being configured with some form of cross compiler. 39 GLIBCXX_IS_NATIVE=false 40 case "$host","$target" in 41 *-*-netbsd*,*-*-netbsd*) 42 GLIBCXX_IS_NATIVE=true 43 ;; 44 # Darwin crosses can use the host system's libraries and headers, 45 # because of the fat library support. Of course, it must be the 46 # same version of Darwin on both sides. Allow the user to 47 # just say --target=foo-darwin without a version number to mean 48 # "the version on this system". 49 *-*-darwin*,*-*-darwin*) 50 hostos=`echo $host | sed 's/.*-darwin/darwin/'` 51 targetos=`echo $target | sed 's/.*-darwin/darwin/'` 52 if test $hostos = $targetos -o $targetos = darwin ; then 53 GLIBCXX_IS_NATIVE=true 54 fi 55 ;; 56 57 *) 58 GCC_NO_EXECUTABLES 59 ;; 60 esac 61 else 62 GLIBCXX_IS_NATIVE=true 63 fi 64 65 # Sets up automake. Must come after AC_CANONICAL_SYSTEM. Each of the 66 # following is magically included in AUTOMAKE_OPTIONS in each Makefile.am. 67 # 1.x: minimum required version 68 # no-define: PACKAGE and VERSION will not be #define'd in config.h (a bunch 69 # of other PACKAGE_* variables will, however, and there's nothing 70 # we can do about that; they come from AC_INIT). 71 # foreign: we don't follow the normal rules for GNU packages (no COPYING 72 # file in the top srcdir, etc, etc), so stop complaining. 73 # no-dependencies: turns off auto dependency generation (just for now) 74 # no-dist: we don't want 'dist' and related rules. 75 # -Wall: turns on all automake warnings... 76 # -Wno-portability: ...except this one, since GNU make is now required. 77 AM_INIT_AUTOMAKE([1.9.3 no-define foreign no-dependencies no-dist -Wall -Wno-portability -Wno-override]) 78 AH_TEMPLATE(PACKAGE, [Name of package]) 79 AH_TEMPLATE(VERSION, [Version number of package]) 80 81 # -fno-builtin must be present here so that a non-conflicting form of 82 # std::exit can be guessed by AC_PROG_CXX, and used in later tests. 83 84 save_CXXFLAGS="$CXXFLAGS" 85 CXXFLAGS="$CXXFLAGS -fno-builtin" 86 AC_PROG_CC 87 AC_PROG_CXX 88 CXXFLAGS="$save_CXXFLAGS" 89 90 AC_SYS_LARGEFILE 91 92 # Runs configure.host, and assorted other critical bits. Sets 93 # up critical shell variables. 94 GLIBCXX_CONFIGURE 95 96 # Libtool setup. 97 if test "x${with_newlib}" != "xyes"; then 98 AC_LIBTOOL_DLOPEN 99 fi 100 AM_PROG_LIBTOOL 101 ACX_LT_HOST_FLAGS 102 AC_SUBST(enable_shared) 103 AC_SUBST(enable_static) 104 105 if test "$enable_vtable_verify" = yes; then 106 predep_objects_CXX="${predep_objects_CXX} ${glibcxx_builddir}/../libgcc/vtv_start.o" 107 postdep_objects_CXX="${postdep_objects_CXX} ${glibcxx_builddir}/../libgcc/vtv_end.o" 108 fi 109 110 111 # libtool variables for C++ shared and position-independent compiles. 112 # 113 # Use glibcxx_lt_pic_flag to designate the automake variable 114 # used to encapsulate the default libtool approach to creating objects 115 # with position-independent code. Default: -prefer-pic. 116 # 117 # Use glibcxx_compiler_shared_flag to designate a compile-time flags for 118 # creating shared objects. Default: -D_GLIBCXX_SHARED. 119 # 120 # Use glibcxx_compiler_pic_flag to designate a compile-time flags for 121 # creating position-independent objects. This varies with the target 122 # hardware and operating system, but is often: -DPIC -fPIC. 123 if test "$enable_shared" = yes; then 124 glibcxx_lt_pic_flag="-prefer-pic" 125 glibcxx_compiler_pic_flag="$lt_prog_compiler_pic_CXX" 126 glibcxx_compiler_shared_flag="-D_GLIBCXX_SHARED" 127 128 else 129 glibcxx_lt_pic_flag= 130 glibcxx_compiler_pic_flag= 131 glibcxx_compiler_shared_flag= 132 fi 133 AC_SUBST(glibcxx_lt_pic_flag) 134 AC_SUBST(glibcxx_compiler_pic_flag) 135 AC_SUBST(glibcxx_compiler_shared_flag) 136 137 # Override the libtool's pic_flag and pic_mode. 138 # Do this step after AM_PROG_LIBTOOL, but before AC_OUTPUT. 139 # NB: this impacts --with-pic and --without-pic. 140 lt_prog_compiler_pic_CXX="$glibcxx_compiler_pic_flag $glibcxx_compiler_shared_flag" 141 pic_mode='default' 142 143 # Eliminate -lstdc++ addition to postdeps for cross compiles. 144 postdeps_CXX=`echo " $postdeps_CXX " | sed 's, -lstdc++ ,,g'` 145 146 # Possibly disable most of the library. 147 ## TODO: Consider skipping unncessary tests altogether in this case, rather 148 ## than just ignoring the results. Faster /and/ more correct, win win. 149 GLIBCXX_ENABLE_HOSTED 150 151 # Enable descriptive messages to standard output on termination. 152 GLIBCXX_ENABLE_VERBOSE 153 154 # Enable compiler support that doesn't require linking. 155 GLIBCXX_ENABLE_PCH($is_hosted) 156 GLIBCXX_ENABLE_THREADS 157 GLIBCXX_ENABLE_ATOMIC_BUILTINS 158 GLIBCXX_ENABLE_DECIMAL_FLOAT 159 GLIBCXX_ENABLE_INT128_FLOAT128 160 if test "$enable_float128" = yes; then 161 port_specific_symbol_files="$port_specific_symbol_files \$(top_srcdir)/config/abi/pre/float128.ver" 162 fi 163 164 # Checks for compiler support that doesn't require linking. 165 GLIBCXX_CHECK_COMPILER_FEATURES 166 167 # Enable all the variable C++ runtime options that don't require linking. 168 GLIBCXX_ENABLE_CSTDIO 169 GLIBCXX_ENABLE_CLOCALE 170 GLIBCXX_ENABLE_ALLOCATOR 171 GLIBCXX_ENABLE_CHEADERS($c_model) dnl c_model from configure.host 172 GLIBCXX_ENABLE_LONG_LONG([yes]) 173 GLIBCXX_ENABLE_WCHAR_T([yes]) 174 GLIBCXX_ENABLE_C99([yes]) 175 GLIBCXX_ENABLE_CONCEPT_CHECKS([no]) 176 GLIBCXX_ENABLE_DEBUG_FLAGS(["-gdwarf-4 -g3 -O0"]) 177 GLIBCXX_ENABLE_DEBUG([no]) 178 GLIBCXX_ENABLE_PARALLEL([yes]) 179 GLIBCXX_ENABLE_CXX_FLAGS 180 GLIBCXX_ENABLE_FULLY_DYNAMIC_STRING([no]) 181 GLIBCXX_ENABLE_EXTERN_TEMPLATE([yes]) 182 GLIBCXX_ENABLE_PYTHON 183 GLIBCXX_ENABLE_WERROR([yes]) 184 GLIBCXX_ENABLE_VTABLE_VERIFY([no]) 185 186 # Checks for operating systems support that doesn't require linking. 187 GLIBCXX_CHECK_STDIO_PROTO 188 GLIBCXX_CHECK_MATH11_PROTO 189 GLIBCXX_CHECK_SYSTEM_ERROR 190 GLIBCXX_CHECK_UCHAR_H 191 192 # For the streamoff typedef. 193 GLIBCXX_CHECK_INT64_T 194 195 # For LFS support. 196 GLIBCXX_CHECK_LFS 197 198 # For showmanyc_helper(). 199 AC_CHECK_HEADERS(sys/ioctl.h sys/filio.h) 200 GLIBCXX_CHECK_POLL 201 GLIBCXX_CHECK_S_ISREG_OR_S_IFREG 202 203 # For xsputn_2(). 204 AC_CHECK_HEADERS(sys/uio.h) 205 GLIBCXX_CHECK_WRITEV 206 207 # Check for fenv.h and complex.h before GLIBCXX_CHECK_C99_TR1 208 # so that the check is done with the C compiler (not C++). 209 # Checking with C++ can break a canadian cross build if either 210 # file does not exist in C but does in C++. 211 AC_CHECK_HEADERS(fenv.h complex.h) 212 213 # For C99 support to TR1. 214 GLIBCXX_CHECK_C99_TR1 215 216 # For the EOF, SEEK_CUR, and SEEK_END integer constants. 217 GLIBCXX_COMPUTE_STDIO_INTEGER_CONSTANTS 218 219 # For gettimeofday support. 220 GLIBCXX_CHECK_GETTIMEOFDAY 221 222 # For clock_gettime, nanosleep and sched_yield support. 223 GLIBCXX_ENABLE_LIBSTDCXX_TIME 224 225 # Check for tmpnam which is obsolescent in POSIX.1-2008 226 GLIBCXX_CHECK_TMPNAM 227 228 AC_LC_MESSAGES 229 230 # For hardware_concurrency 231 AC_CHECK_HEADERS(sys/sysinfo.h) 232 GLIBCXX_CHECK_GET_NPROCS 233 AC_CHECK_HEADERS(unistd.h) 234 GLIBCXX_CHECK_SC_NPROCESSORS_ONLN 235 GLIBCXX_CHECK_SC_NPROC_ONLN 236 GLIBCXX_CHECK_PTHREADS_NUM_PROCESSORS_NP 237 GLIBCXX_CHECK_SYSCTL_HW_NCPU 238 GLIBCXX_CHECK_SDT_H 239 240 # Check for available headers. 241 AC_CHECK_HEADERS([endian.h execinfo.h float.h fp.h ieeefp.h inttypes.h \ 242 locale.h machine/endian.h machine/param.h nan.h stdint.h stdlib.h string.h \ 243 strings.h sys/ipc.h sys/isa_defs.h sys/machine.h sys/param.h \ 244 sys/resource.h sys/sem.h sys/stat.h sys/time.h sys/types.h unistd.h \ 245 wchar.h wctype.h linux/types.h]) 246 247 AC_CHECK_HEADERS([linux/random.h], [], [], 248 [[#ifdef HAVE_LINUX_TYPES_H 249 # include <linux/types.h> 250 #endif 251 ]]) 252 253 # Only do link tests if native. Else, hardcode. 254 if $GLIBCXX_IS_NATIVE; then 255 256 # We can do more elaborate tests that assume a working linker. 257 CANADIAN=no 258 259 GLIBCXX_CHECK_LINKER_FEATURES 260 GLIBCXX_CHECK_MATH_SUPPORT 261 GLIBCXX_CHECK_STDLIB_SUPPORT 262 263 # For /dev/random and /dev/urandom for TR1. 264 GLIBCXX_CHECK_RANDOM_TR1 265 266 # For TLS support. 267 GCC_CHECK_TLS 268 269 AC_CHECK_FUNCS(__cxa_thread_atexit_impl __cxa_thread_atexit) 270 AC_CHECK_FUNCS(aligned_alloc posix_memalign memalign _aligned_malloc) 271 272 # For iconv support. 273 AM_ICONV 274 275 else 276 277 # This lets us hard-code the functionality we know we'll have in the cross 278 # target environment. "Let" is a sugar-coated word placed on an especially 279 # dull and tedious hack, actually. 280 # 281 # Here's why GLIBCXX_CHECK_MATH_SUPPORT, and other autoconf macros 282 # that involve linking, can't be used: 283 # "cannot open sim-crt0.o" 284 # "cannot open crt0.o" 285 # etc. All this is because there currently exists no unified, consistent 286 # way for top level CC information to be passed down to target directories: 287 # newlib includes, newlib linking info, libgloss versus newlib crt0.o, etc. 288 # When all of that is done, all of this hokey, excessive AC_DEFINE junk for 289 # crosses can be removed. 290 291 # If Canadian cross, then don't pick up tools from the build directory. 292 # Used only in GLIBCXX_EXPORT_INCLUDES. 293 if test -n "$with_cross_host" && 294 test x"$build_alias" != x"$with_cross_host" && 295 test x"$build" != x"$target"; 296 then 297 CANADIAN=yes 298 else 299 CANADIAN=no 300 fi 301 302 # Construct crosses by hand, eliminating bits that need ld... 303 # GLIBCXX_CHECK_MATH_SUPPORT 304 305 # First, test for "known" system libraries. We may be using newlib even 306 # on a hosted environment. 307 if test "x${with_newlib}" = "xyes"; then 308 os_include_dir="os/newlib" 309 AC_DEFINE(HAVE_HYPOT) 310 311 # GLIBCXX_CHECK_STDLIB_SUPPORT 312 AC_DEFINE(HAVE_STRTOF) 313 314 AC_DEFINE(HAVE_ACOSF) 315 AC_DEFINE(HAVE_ASINF) 316 AC_DEFINE(HAVE_ATAN2F) 317 AC_DEFINE(HAVE_ATANF) 318 AC_DEFINE(HAVE_CEILF) 319 AC_DEFINE(HAVE_COSF) 320 AC_DEFINE(HAVE_COSHF) 321 AC_DEFINE(HAVE_EXPF) 322 AC_DEFINE(HAVE_FABSF) 323 AC_DEFINE(HAVE_FLOORF) 324 AC_DEFINE(HAVE_FMODF) 325 AC_DEFINE(HAVE_FREXPF) 326 AC_DEFINE(HAVE_LDEXPF) 327 AC_DEFINE(HAVE_LOG10F) 328 AC_DEFINE(HAVE_LOGF) 329 AC_DEFINE(HAVE_MODFF) 330 AC_DEFINE(HAVE_POWF) 331 AC_DEFINE(HAVE_SINF) 332 AC_DEFINE(HAVE_SINHF) 333 AC_DEFINE(HAVE_SQRTF) 334 AC_DEFINE(HAVE_TANF) 335 AC_DEFINE(HAVE_TANHF) 336 337 AC_DEFINE(HAVE_ICONV) 338 AC_DEFINE(HAVE_MEMALIGN) 339 else 340 GLIBCXX_CROSSCONFIG 341 fi 342 343 # At some point, we should differentiate between architectures 344 # like x86, which have long double versions, and alpha/powerpc/etc., 345 # which don't. For the time being, punt. 346 if test x"long_double_math_on_this_cpu" = x"yes"; then 347 AC_DEFINE(HAVE_ACOSL) 348 AC_DEFINE(HAVE_ASINL) 349 AC_DEFINE(HAVE_ATAN2L) 350 AC_DEFINE(HAVE_ATANL) 351 AC_DEFINE(HAVE_CEILL) 352 AC_DEFINE(HAVE_COSL) 353 AC_DEFINE(HAVE_COSHL) 354 AC_DEFINE(HAVE_EXPL) 355 AC_DEFINE(HAVE_FABSL) 356 AC_DEFINE(HAVE_FLOORL) 357 AC_DEFINE(HAVE_FMODL) 358 AC_DEFINE(HAVE_FREXPL) 359 AC_DEFINE(HAVE_LDEXPL) 360 AC_DEFINE(HAVE_LOG10L) 361 AC_DEFINE(HAVE_LOGL) 362 AC_DEFINE(HAVE_MODFL) 363 AC_DEFINE(HAVE_POWL) 364 AC_DEFINE(HAVE_SINCOSL) 365 AC_DEFINE(HAVE_SINL) 366 AC_DEFINE(HAVE_SINHL) 367 AC_DEFINE(HAVE_SQRTL) 368 AC_DEFINE(HAVE_TANL) 369 AC_DEFINE(HAVE_TANHL) 370 fi 371 fi 372 373 # Check for _Unwind_GetIPInfo. 374 GCC_CHECK_UNWIND_GETIPINFO 375 376 GCC_LINUX_FUTEX([AC_DEFINE(HAVE_LINUX_FUTEX, 1, [Define if futex syscall is available.])]) 377 378 GCC_HEADER_STDINT(include/gstdint.h) 379 380 GLIBCXX_ENABLE_SYMVERS([yes]) 381 AC_SUBST(libtool_VERSION) 382 383 GLIBCXX_ENABLE_LIBSTDCXX_VISIBILITY([yes]) 384 385 GLIBCXX_ENABLE_LIBSTDCXX_DUAL_ABI([yes]) 386 GLIBCXX_DEFAULT_ABI 387 388 ac_ldbl_compat=no 389 LONG_DOUBLE_COMPAT_FLAGS="-mlong-double-64" 390 case "$target" in 391 powerpc*-*-linux* | \ 392 sparc*-*-linux* | \ 393 s390*-*-linux* | \ 394 alpha*-*-linux*) 395 AC_TRY_COMPILE(, [ 396 #if !defined __LONG_DOUBLE_128__ || (defined(__sparc__) && defined(__arch64__)) 397 #error no need for long double compatibility 398 #endif 399 ], [ac_ldbl_compat=yes], [ac_ldbl_compat=no]) 400 if test "$ac_ldbl_compat" = yes; then 401 AC_DEFINE([_GLIBCXX_LONG_DOUBLE_COMPAT],1, 402 [Define if compatibility should be provided for -mlong-double-64.]) 403 port_specific_symbol_files="\$(top_srcdir)/config/os/gnu-linux/ldbl-extra.ver" 404 case "$target" in 405 powerpc*-*-linux*) 406 LONG_DOUBLE_COMPAT_FLAGS="$LONG_DOUBLE_COMPAT_FLAGS -mno-gnu-attribute" ;; 407 esac 408 fi 409 esac 410 AC_SUBST(LONG_DOUBLE_COMPAT_FLAGS) 411 GLIBCXX_CONDITIONAL(GLIBCXX_LDBL_COMPAT, test $ac_ldbl_compat = yes) 412 413 # Check if assembler supports disabling hardware capability support. 414 GCC_CHECK_ASSEMBLER_HWCAP 415 416 # Check if assembler supports rdrand opcode. 417 GLIBCXX_CHECK_X86_RDRAND 418 419 # This depends on GLIBCXX_ENABLE_SYMVERS and GLIBCXX_IS_NATIVE. 420 GLIBCXX_CONFIGURE_TESTSUITE 421 422 # For gthread support. Depends on GLIBCXX_ENABLE_SYMVERS. 423 GLIBCXX_CHECK_GTHREADS 424 425 # For Filesystem TS. 426 AC_CHECK_HEADERS([fcntl.h dirent.h sys/statvfs.h utime.h]) 427 GLIBCXX_ENABLE_FILESYSTEM_TS 428 GLIBCXX_CHECK_FILESYSTEM_DEPS 429 430 # For Transactional Memory TS 431 GLIBCXX_CHECK_SIZE_T_MANGLING 432 433 # Check which release added std::exception_ptr for the target 434 GLIBCXX_CHECK_EXCEPTION_PTR_SYMVER 435 436 # Define documentation rules conditionally. 437 438 # See if makeinfo has been installed and is modern enough 439 # that we can use it. 440 ACX_CHECK_PROG_VER([MAKEINFO], [makeinfo], [--version], 441 [GNU texinfo.* \([0-9][0-9.]*\)], 442 [4.[4-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*]) 443 AM_CONDITIONAL(BUILD_INFO, test $gcc_cv_prog_makeinfo_modern = "yes") 444 445 # Check for doxygen 446 AC_CHECK_PROG([DOXYGEN], doxygen, yes, no) 447 AC_CHECK_PROG([DOT], dot, yes, no) 448 449 # Check for docbook 450 AC_CHECK_PROG([XMLCATALOG], xmlcatalog, yes, no) 451 AC_CHECK_PROG([XSLTPROC], xsltproc, yes, no) 452 AC_CHECK_PROG([XMLLINT], xmllint, yes, no) 453 GLIBCXX_CONFIGURE_DOCBOOK 454 455 # Check for xml/html dependencies. 456 AM_CONDITIONAL(BUILD_XML, 457 test $ac_cv_prog_DOXYGEN = "yes" && 458 test $ac_cv_prog_DOT = "yes" && 459 test $ac_cv_prog_XSLTPROC = "yes" && 460 test $ac_cv_prog_XMLLINT = "yes" && 461 test $glibcxx_stylesheets = "yes") 462 463 AM_CONDITIONAL(BUILD_HTML, 464 test $ac_cv_prog_DOXYGEN = "yes" && 465 test $ac_cv_prog_DOT = "yes" && 466 test $ac_cv_prog_XSLTPROC = "yes" && 467 test $ac_cv_prog_XMLLINT = "yes" && 468 test $glibcxx_stylesheets = "yes") 469 470 # Check for man dependencies. 471 AM_CONDITIONAL(BUILD_MAN, 472 test $ac_cv_prog_DOXYGEN = "yes" && 473 test $ac_cv_prog_DOT = "yes") 474 475 # Check for pdf dependencies. 476 AC_CHECK_PROG([DBLATEX], dblatex, yes, no) 477 AC_CHECK_PROG([PDFLATEX], pdflatex, yes, no) 478 AM_CONDITIONAL(BUILD_PDF, 479 test $ac_cv_prog_DBLATEX = "yes" && 480 test $ac_cv_prog_PDFLATEX = "yes") 481 482 case "$build" in 483 *-*-darwin* ) glibcxx_include_dir_notparallel=yes ;; 484 * ) glibcxx_include_dir_notparallel=no ;; 485 esac 486 AM_CONDITIONAL(INCLUDE_DIR_NOTPARALLEL, 487 test $glibcxx_include_dir_notparallel = "yes") 488 489 # Propagate the target-specific source directories through the build chain. 490 ATOMICITY_SRCDIR=config/${atomicity_dir} 491 ATOMIC_WORD_SRCDIR=config/${atomic_word_dir} 492 ATOMIC_FLAGS=${atomic_flags} 493 CPU_DEFINES_SRCDIR=config/${cpu_defines_dir} 494 OS_INC_SRCDIR=config/${os_include_dir} 495 ERROR_CONSTANTS_SRCDIR=config/${error_constants_dir} 496 ABI_TWEAKS_SRCDIR=config/${abi_tweaks_dir} 497 CPU_OPT_EXT_RANDOM=config/${cpu_opt_ext_random} 498 CPU_OPT_BITS_RANDOM=config/${cpu_opt_bits_random} 499 AC_SUBST(ATOMICITY_SRCDIR) 500 AC_SUBST(ATOMIC_WORD_SRCDIR) 501 AC_SUBST(ATOMIC_FLAGS) 502 AC_SUBST(CPU_DEFINES_SRCDIR) 503 AC_SUBST(ABI_TWEAKS_SRCDIR) 504 AC_SUBST(OS_INC_SRCDIR) 505 AC_SUBST(ERROR_CONSTANTS_SRCDIR) 506 AC_SUBST(CPU_OPT_EXT_RANDOM) 507 AC_SUBST(CPU_OPT_BITS_RANDOM) 508 509 510 # Add CET specific flags if Intel CET is enabled. 511 GCC_CET_FLAGS(CET_FLAGS) 512 EXTRA_CXX_FLAGS="$EXTRA_CXX_FLAGS $CET_FLAGS" 513 EXTRA_CFLAGS="$EXTRA_CFLAGS $CET_FLAGS" 514 AC_SUBST(EXTRA_CFLAGS) 515 AC_SUBST(EXTRA_CXX_FLAGS) 516 517 # Determine cross-compile flags and AM_CONDITIONALs. 518 #AC_SUBST(GLIBCXX_IS_NATIVE) 519 #AM_CONDITIONAL(CANADIAN, test $CANADIAN = yes) 520 GLIBCXX_EVALUATE_CONDITIONALS 521 522 AC_CACHE_SAVE 523 524 if test ${multilib} = yes; then 525 multilib_arg="--enable-multilib" 526 else 527 multilib_arg= 528 fi 529 530 # Export all the install information. 531 GLIBCXX_EXPORT_INSTALL_INFO 532 533 # Export all the include and flag information to Makefiles. 534 GLIBCXX_EXPORT_INCLUDES 535 GLIBCXX_EXPORT_FLAGS 536 537 # Determine what GCC version number to use in filesystem paths. 538 GCC_BASE_VER 539 540 dnl In autoconf 2.5x, AC_OUTPUT is replaced by four AC_CONFIG_* macros, 541 dnl which can all be called multiple times as needed, plus one (different) 542 dnl AC_OUTPUT macro. This one lists the files to be created: 543 AC_CONFIG_FILES(Makefile) 544 AC_CONFIG_FILES([scripts/testsuite_flags],[chmod +x scripts/testsuite_flags]) 545 AC_CONFIG_FILES([scripts/extract_symvers],[chmod +x scripts/extract_symvers]) 546 AC_CONFIG_FILES([doc/xsl/customization.xsl]) 547 548 # Multilibs need MULTISUBDIR defined correctly in certain makefiles so 549 # that multilib installs will end up installed in the correct place. 550 # The testsuite needs it for multilib-aware ABI baseline files. 551 # To work around this not being passed down from config-ml.in -> 552 # srcdir/Makefile.am -> srcdir/{src,libsupc++,...}/Makefile.am, manually 553 # append it here. Only modify Makefiles that have just been created. 554 # 555 # Also, get rid of this simulated-VPATH thing that automake does. 556 AC_CONFIG_FILES(AC_FOREACH([DIR], glibcxx_SUBDIRS, [DIR/Makefile ]), 557 [cat > vpsed$$ << \_EOF 558 s!`test -f '$<' || echo '$(srcdir)/'`!! 559 _EOF 560 sed -f vpsed$$ $ac_file > tmp$$ 561 mv tmp$$ $ac_file 562 rm vpsed$$ 563 echo 'MULTISUBDIR =' >> $ac_file 564 ml_norecursion=yes 565 . ${multi_basedir}/config-ml.in 566 AS_UNSET([ml_norecursion]) 567 ]) 568 569 AC_CONFIG_COMMANDS([generate-headers], 570 [(cd include && ${MAKE-make} pch_build= )]) 571 572 dnl And this actually makes things happen: 573 AC_OUTPUT 574
Indexes created Sat Jun 27 00:24:51 UTC 2026