configure.ac revision 1.1.1.9
1 # Process this file with autoreconf to produce a configure script. 2 3 AC_INIT(package-unused, version-unused,, libstdc++) 4 AC_CONFIG_SRCDIR(src/shared/hashtable-aux.cc) 5 AC_CONFIG_HEADER(config.h) 6 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 10 # exported. Only used at the end of this file. 11 ### am handles this now? ORIGINAL_LD_FOR_MULTILIBS=$LD 12 13 # Find the rest of the source tree framework. 14 AM_ENABLE_MULTILIB(, ..) 15 16 # Gets build, host, target, *_vendor, *_cpu, *_os, etc. 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 20 # library's /host/. configure then causes --target to default to --host, 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 $with_cross_host. 27 # 28 # Do not delete or change the following two lines. For why, see 29 # http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html 30 AC_CANONICAL_SYSTEM 31 target_alias=${target_alias-$host_alias} 32 33 # Handy for debugging: 34 #AC_MSG_NOTICE($build / $host / $target / $host_alias / $target_alias); sleep 5 35 36 if test "$build" != "$host"; then 37 # We are being configured with some form of cross compiler. 38 GLIBCXX_IS_NATIVE=false 39 case "$host","$target" in 40 *-*-netbsd*,*-*-netbsd*) 41 GLIBCXX_IS_NATIVE=true 42 ;; 43 # Darwin crosses can use the host system's libraries and headers, 44 # because of the fat library support. Of course, it must be the 45 # same version of Darwin on both sides. Allow the user to 46 # just say --target=foo-darwin without a version number to mean 47 # "the version on this system". 48 *-*-darwin*,*-*-darwin*) 49 hostos=`echo $host | sed 's/.*-darwin/darwin/'` 50 targetos=`echo $target | sed 's/.*-darwin/darwin/'` 51 if test $hostos = $targetos -o $targetos = darwin ; then 52 GLIBCXX_IS_NATIVE=true 53 fi 54 ;; 55 56 *) 57 GCC_NO_EXECUTABLES 58 ;; 59 esac 60 else 61 GLIBCXX_IS_NATIVE=true 62 fi 63 64 # Sets up automake. Must come after AC_CANONICAL_SYSTEM. Each of the 65 # following is magically included in AUTOMAKE_OPTIONS in each Makefile.am. 66 # 1.x: minimum required version 67 # no-define: PACKAGE and VERSION will not be #define'd in config.h (a bunch 68 # of other PACKAGE_* variables will, however, and there's nothing 69 # we can do about that; they come from AC_INIT). 70 # foreign: we don't follow the normal rules for GNU packages (no COPYING 71 # file in the top srcdir, etc, etc), so stop complaining. 72 # no-dependencies: turns off auto dependency generation (just for now) 73 # no-dist: we don't want 'dist' and related rules. 74 # -Wall: turns on all automake warnings... 75 # -Wno-portability: ...except this one, since GNU make is now required. 76 AM_INIT_AUTOMAKE([1.9.3 no-define foreign no-dependencies no-dist -Wall -Wno-portability -Wno-override]) 77 AH_TEMPLATE(PACKAGE, [Name of package]) 78 AH_TEMPLATE(VERSION, [Version number of package]) 79 80 # -fno-builtin must be present here so that a non-conflicting form of 81 # std::exit can be guessed by AC_PROG_CXX, and used in later tests. 82 83 save_CXXFLAGS="$CXXFLAGS" 84 CXXFLAGS="$CXXFLAGS -fno-builtin" 85 AC_PROG_CC 86 AC_PROG_CXX 87 CXXFLAGS="$save_CXXFLAGS" 88 89 AC_SYS_LARGEFILE 90 91 # Runs configure.host, and assorted other critical bits. Sets 92 # up critical shell variables. 93 GLIBCXX_CONFIGURE 94 95 # Libtool setup. 96 if test "x${with_newlib}" != "xyes"; then 97 AC_LIBTOOL_DLOPEN 98 fi 99 AM_PROG_LIBTOOL 100 ACX_LT_HOST_FLAGS 101 AC_SUBST(enable_shared) 102 AC_SUBST(enable_static) 103 104 if test "$enable_vtable_verify" = yes; then 105 predep_objects_CXX="${predep_objects_CXX} ${glibcxx_builddir}/../libgcc/vtv_start.o" 106 postdep_objects_CXX="${postdep_objects_CXX} ${glibcxx_builddir}/../libgcc/vtv_end.o" 107 fi 108 109 110 # libtool variables for C++ shared and position-independent compiles. 111 # 112 # Use glibcxx_lt_pic_flag to designate the automake variable 113 # used to encapsulate the default libtool approach to creating objects 114 # with position-independent code. Default: -prefer-pic. 115 # 116 # Use glibcxx_compiler_shared_flag to designate a compile-time flags for 117 # creating shared objects. Default: -D_GLIBCXX_SHARED. 118 # 119 # Use glibcxx_compiler_pic_flag to designate a compile-time flags for 120 # creating position-independent objects. This varies with the target 121 # hardware and operating system, but is often: -DPIC -fPIC. 122 if test "$enable_shared" = yes; then 123 glibcxx_lt_pic_flag="-prefer-pic" 124 glibcxx_compiler_pic_flag="$lt_prog_compiler_pic_CXX" 125 glibcxx_compiler_shared_flag="-D_GLIBCXX_SHARED" 126 127 else 128 glibcxx_lt_pic_flag= 129 glibcxx_compiler_pic_flag= 130 glibcxx_compiler_shared_flag= 131 fi 132 AC_SUBST(glibcxx_lt_pic_flag) 133 AC_SUBST(glibcxx_compiler_pic_flag) 134 AC_SUBST(glibcxx_compiler_shared_flag) 135 136 # Override the libtool's pic_flag and pic_mode. 137 # Do this step after AM_PROG_LIBTOOL, but before AC_OUTPUT. 138 # NB: this impacts --with-pic and --without-pic. 139 lt_prog_compiler_pic_CXX="$glibcxx_compiler_pic_flag $glibcxx_compiler_shared_flag" 140 pic_mode='default' 141 142 # Eliminate -lstdc++ addition to postdeps for cross compiles. 143 postdeps_CXX=`echo " $postdeps_CXX " | sed 's, -lstdc++ ,,g'` 144 145 # Possibly disable most of the library. 146 ## TODO: Consider skipping unncessary tests altogether in this case, rather 147 ## than just ignoring the results. Faster /and/ more correct, win win. 148 GLIBCXX_ENABLE_HOSTED 149 150 # Enable descriptive messages to standard output on termination. 151 GLIBCXX_ENABLE_VERBOSE 152 153 # Enable compiler support that doesn't require linking. 154 GLIBCXX_ENABLE_PCH($is_hosted) 155 GLIBCXX_ENABLE_THREADS 156 GLIBCXX_ENABLE_ATOMIC_BUILTINS 157 GLIBCXX_ENABLE_LOCK_POLICY 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 -D_GLIBCXX_ASSERTIONS"]) 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([no]) 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_UCHAR_H 190 191 # For the streamoff typedef. 192 GLIBCXX_CHECK_INT64_T 193 194 # For LFS support. 195 GLIBCXX_CHECK_LFS 196 197 # For showmanyc_helper(). 198 AC_CHECK_HEADERS(sys/ioctl.h sys/filio.h) 199 GLIBCXX_CHECK_POLL 200 GLIBCXX_CHECK_S_ISREG_OR_S_IFREG 201 202 # For xsputn_2(). 203 AC_CHECK_HEADERS(sys/uio.h) 204 GLIBCXX_CHECK_WRITEV 205 206 # Check for fenv.h and complex.h before GLIBCXX_CHECK_C99_TR1 207 # so that the check is done with the C compiler (not C++). 208 # Checking with C++ can break a canadian cross build if either 209 # file does not exist in C but does in C++. 210 AC_CHECK_HEADERS(fenv.h complex.h) 211 212 # For C99 support to TR1. 213 GLIBCXX_CHECK_C99_TR1 214 215 # For the EOF, SEEK_CUR, and SEEK_END integer constants. 216 GLIBCXX_COMPUTE_STDIO_INTEGER_CONSTANTS 217 218 # For gettimeofday support. 219 GLIBCXX_CHECK_GETTIMEOFDAY 220 221 # For clock_gettime, nanosleep and sched_yield support. 222 GLIBCXX_ENABLE_LIBSTDCXX_TIME 223 224 # Check for tmpnam which is obsolescent in POSIX.1-2008 225 GLIBCXX_CHECK_TMPNAM 226 227 # For pthread_cond_clockwait 228 GLIBCXX_CHECK_PTHREAD_COND_CLOCKWAIT 229 230 # For pthread_mutex_clocklock 231 GLIBCXX_CHECK_PTHREAD_MUTEX_CLOCKLOCK 232 233 # For pthread_rwlock_clockrdlock and pthread_rwlock_clockwrlock 234 GLIBCXX_CHECK_PTHREAD_RWLOCK_CLOCKLOCK 235 236 AC_LC_MESSAGES 237 238 # For hardware_concurrency 239 AC_CHECK_HEADERS(sys/sysinfo.h) 240 GLIBCXX_CHECK_GET_NPROCS 241 AC_CHECK_HEADERS(unistd.h) 242 GLIBCXX_CHECK_SC_NPROCESSORS_ONLN 243 GLIBCXX_CHECK_SC_NPROC_ONLN 244 GLIBCXX_CHECK_PTHREADS_NUM_PROCESSORS_NP 245 GLIBCXX_CHECK_SYSCTL_HW_NCPU 246 GLIBCXX_CHECK_SDT_H 247 248 # Check for available headers. 249 AC_CHECK_HEADERS([endian.h execinfo.h float.h fp.h ieeefp.h inttypes.h \ 250 locale.h machine/endian.h machine/param.h nan.h stdint.h stdlib.h string.h \ 251 strings.h sys/ipc.h sys/isa_defs.h sys/machine.h sys/param.h \ 252 sys/resource.h sys/sem.h sys/stat.h sys/time.h sys/types.h unistd.h \ 253 wchar.h wctype.h linux/types.h]) 254 255 AC_CHECK_HEADERS([linux/random.h], [], [], 256 [[#ifdef HAVE_LINUX_TYPES_H 257 # include <linux/types.h> 258 #endif 259 ]]) 260 261 # Only do link tests if native. Else, hardcode. 262 if $GLIBCXX_IS_NATIVE; then 263 264 # We can do more elaborate tests that assume a working linker. 265 CANADIAN=no 266 267 GLIBCXX_CHECK_LINKER_FEATURES 268 GLIBCXX_CHECK_MATH_SUPPORT 269 GLIBCXX_CHECK_STDLIB_SUPPORT 270 271 # For /dev/random and /dev/urandom for std::random_device. 272 GLIBCXX_CHECK_DEV_RANDOM 273 274 # For TLS support. 275 GCC_CHECK_TLS 276 277 AC_CHECK_FUNCS(__cxa_thread_atexit_impl __cxa_thread_atexit) 278 AC_CHECK_FUNCS(aligned_alloc posix_memalign memalign _aligned_malloc) 279 AC_CHECK_FUNCS(_wfopen) 280 281 # C11 functions for C++17 library 282 AC_CHECK_FUNCS(timespec_get) 283 284 # For Networking TS. 285 AC_CHECK_FUNCS(sockatmark) 286 287 # For iconv support. 288 AM_ICONV 289 290 else 291 292 # This lets us hard-code the functionality we know we'll have in the cross 293 # target environment. "Let" is a sugar-coated word placed on an especially 294 # dull and tedious hack, actually. 295 # 296 # Here's why GLIBCXX_CHECK_MATH_SUPPORT, and other autoconf macros 297 # that involve linking, can't be used: 298 # "cannot open sim-crt0.o" 299 # "cannot open crt0.o" 300 # etc. All this is because there currently exists no unified, consistent 301 # way for top level CC information to be passed down to target directories: 302 # newlib includes, newlib linking info, libgloss versus newlib crt0.o, etc. 303 # When all of that is done, all of this hokey, excessive AC_DEFINE junk for 304 # crosses can be removed. 305 306 # If Canadian cross, then don't pick up tools from the build directory. 307 # Used only in GLIBCXX_EXPORT_INCLUDES. 308 if test -n "$with_cross_host" && 309 test x"$build_alias" != x"$with_cross_host" && 310 test x"$build" != x"$target"; 311 then 312 CANADIAN=yes 313 else 314 CANADIAN=no 315 fi 316 317 # Construct crosses by hand, eliminating bits that need ld... 318 # GLIBCXX_CHECK_MATH_SUPPORT 319 320 # First, test for "known" system libraries. We may be using newlib even 321 # on a hosted environment. 322 if test "x${with_newlib}" = "xyes"; then 323 os_include_dir="os/newlib" 324 AC_DEFINE(HAVE_HYPOT) 325 326 # GLIBCXX_CHECK_STDLIB_SUPPORT 327 AC_DEFINE(HAVE_STRTOF) 328 329 AC_DEFINE(HAVE_ACOSF) 330 AC_DEFINE(HAVE_ASINF) 331 AC_DEFINE(HAVE_ATAN2F) 332 AC_DEFINE(HAVE_ATANF) 333 AC_DEFINE(HAVE_CEILF) 334 AC_DEFINE(HAVE_COSF) 335 AC_DEFINE(HAVE_COSHF) 336 AC_DEFINE(HAVE_EXPF) 337 AC_DEFINE(HAVE_FABSF) 338 AC_DEFINE(HAVE_FLOORF) 339 AC_DEFINE(HAVE_FMODF) 340 AC_DEFINE(HAVE_FREXPF) 341 AC_DEFINE(HAVE_LDEXPF) 342 AC_DEFINE(HAVE_LOG10F) 343 AC_DEFINE(HAVE_LOGF) 344 AC_DEFINE(HAVE_MODFF) 345 AC_DEFINE(HAVE_POWF) 346 AC_DEFINE(HAVE_SINF) 347 AC_DEFINE(HAVE_SINHF) 348 AC_DEFINE(HAVE_SQRTF) 349 AC_DEFINE(HAVE_TANF) 350 AC_DEFINE(HAVE_TANHF) 351 352 AC_DEFINE(HAVE_ICONV) 353 AC_DEFINE(HAVE_MEMALIGN) 354 else 355 GLIBCXX_CROSSCONFIG 356 fi 357 358 # At some point, we should differentiate between architectures 359 # like x86, which have long double versions, and alpha/powerpc/etc., 360 # which don't. For the time being, punt. 361 if test x"long_double_math_on_this_cpu" = x"yes"; then 362 AC_DEFINE(HAVE_ACOSL) 363 AC_DEFINE(HAVE_ASINL) 364 AC_DEFINE(HAVE_ATAN2L) 365 AC_DEFINE(HAVE_ATANL) 366 AC_DEFINE(HAVE_CEILL) 367 AC_DEFINE(HAVE_COSL) 368 AC_DEFINE(HAVE_COSHL) 369 AC_DEFINE(HAVE_EXPL) 370 AC_DEFINE(HAVE_FABSL) 371 AC_DEFINE(HAVE_FLOORL) 372 AC_DEFINE(HAVE_FMODL) 373 AC_DEFINE(HAVE_FREXPL) 374 AC_DEFINE(HAVE_LDEXPL) 375 AC_DEFINE(HAVE_LOG10L) 376 AC_DEFINE(HAVE_LOGL) 377 AC_DEFINE(HAVE_MODFL) 378 AC_DEFINE(HAVE_POWL) 379 AC_DEFINE(HAVE_SINCOSL) 380 AC_DEFINE(HAVE_SINL) 381 AC_DEFINE(HAVE_SINHL) 382 AC_DEFINE(HAVE_SQRTL) 383 AC_DEFINE(HAVE_TANL) 384 AC_DEFINE(HAVE_TANHL) 385 fi 386 fi 387 388 # Check for _Unwind_GetIPInfo. 389 GCC_CHECK_UNWIND_GETIPINFO 390 391 GCC_LINUX_FUTEX([AC_DEFINE(HAVE_LINUX_FUTEX, 1, [Define if futex syscall is available.])]) 392 393 GCC_HEADER_STDINT(include/gstdint.h) 394 395 GLIBCXX_ENABLE_SYMVERS([yes]) 396 AC_SUBST(libtool_VERSION) 397 398 GLIBCXX_ENABLE_LIBSTDCXX_VISIBILITY([yes]) 399 400 GLIBCXX_ENABLE_LIBSTDCXX_DUAL_ABI([yes]) 401 GLIBCXX_DEFAULT_ABI 402 403 ac_ldbl_compat=no 404 LONG_DOUBLE_COMPAT_FLAGS="-mlong-double-64" 405 case "$target" in 406 powerpc*-*-linux* | \ 407 sparc*-*-linux* | \ 408 s390*-*-linux* | \ 409 alpha*-*-linux*) 410 AC_TRY_COMPILE(, [ 411 #if !defined __LONG_DOUBLE_128__ || (defined(__sparc__) && defined(__arch64__)) 412 #error no need for long double compatibility 413 #endif 414 ], [ac_ldbl_compat=yes], [ac_ldbl_compat=no]) 415 if test "$ac_ldbl_compat" = yes; then 416 AC_DEFINE([_GLIBCXX_LONG_DOUBLE_COMPAT],1, 417 [Define if compatibility should be provided for -mlong-double-64.]) 418 port_specific_symbol_files="\$(top_srcdir)/config/os/gnu-linux/ldbl-extra.ver" 419 case "$target" in 420 powerpc*-*-linux*) 421 LONG_DOUBLE_COMPAT_FLAGS="$LONG_DOUBLE_COMPAT_FLAGS -mno-gnu-attribute" ;; 422 esac 423 fi 424 esac 425 AC_SUBST(LONG_DOUBLE_COMPAT_FLAGS) 426 GLIBCXX_CONDITIONAL(GLIBCXX_LDBL_COMPAT, test $ac_ldbl_compat = yes) 427 428 # Check if assembler supports disabling hardware capability support. 429 GCC_CHECK_ASSEMBLER_HWCAP 430 431 # Check if assembler supports rdrand opcode. 432 GLIBCXX_CHECK_X86_RDRAND 433 # Check if assembler supports rdseed opcode. 434 GLIBCXX_CHECK_X86_RDSEED 435 436 # This depends on GLIBCXX_ENABLE_SYMVERS and GLIBCXX_IS_NATIVE. 437 GLIBCXX_CONFIGURE_TESTSUITE 438 439 # For gthread support. Depends on GLIBCXX_ENABLE_SYMVERS. 440 GLIBCXX_CHECK_GTHREADS 441 442 # For Filesystem TS. 443 AC_CHECK_HEADERS([fcntl.h dirent.h sys/statvfs.h utime.h]) 444 GLIBCXX_ENABLE_FILESYSTEM_TS 445 GLIBCXX_CHECK_FILESYSTEM_DEPS 446 447 # For Networking TS. 448 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]) 449 450 # For Transactional Memory TS 451 GLIBCXX_CHECK_SIZE_T_MANGLING 452 453 # Check which release added std::exception_ptr for the target 454 GLIBCXX_CHECK_EXCEPTION_PTR_SYMVER 455 456 # Define documentation rules conditionally. 457 458 # See if makeinfo has been installed and is modern enough 459 # that we can use it. 460 ACX_CHECK_PROG_VER([MAKEINFO], [makeinfo], [--version], 461 [GNU texinfo.* \([0-9][0-9.]*\)], 462 [4.[4-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*]) 463 AM_CONDITIONAL(BUILD_INFO, test $gcc_cv_prog_makeinfo_modern = "yes") 464 465 # Check for doxygen 466 AC_CHECK_PROG([DOXYGEN], doxygen, yes, no) 467 AC_CHECK_PROG([DOT], dot, yes, no) 468 469 # Check for docbook 470 AC_CHECK_PROG([XMLCATALOG], xmlcatalog, yes, no) 471 AC_CHECK_PROG([XSLTPROC], xsltproc, yes, no) 472 AC_CHECK_PROG([XMLLINT], xmllint, yes, no) 473 GLIBCXX_CONFIGURE_DOCBOOK 474 475 # Check for xml/html dependencies. 476 AM_CONDITIONAL(BUILD_XML, 477 test $ac_cv_prog_DOXYGEN = "yes" && 478 test $ac_cv_prog_DOT = "yes" && 479 test $ac_cv_prog_XSLTPROC = "yes" && 480 test $ac_cv_prog_XMLLINT = "yes" && 481 test $glibcxx_stylesheets = "yes") 482 483 AM_CONDITIONAL(BUILD_HTML, 484 test $ac_cv_prog_DOXYGEN = "yes" && 485 test $ac_cv_prog_DOT = "yes" && 486 test $ac_cv_prog_XSLTPROC = "yes" && 487 test $ac_cv_prog_XMLLINT = "yes" && 488 test $glibcxx_stylesheets = "yes") 489 490 # Check for man dependencies. 491 AM_CONDITIONAL(BUILD_MAN, 492 test $ac_cv_prog_DOXYGEN = "yes" && 493 test $ac_cv_prog_DOT = "yes") 494 495 # Check for pdf dependencies. 496 AC_CHECK_PROG([DBLATEX], dblatex, yes, no) 497 AC_CHECK_PROG([PDFLATEX], pdflatex, yes, no) 498 AM_CONDITIONAL(BUILD_PDF, 499 test $ac_cv_prog_DOXYGEN = "yes" && 500 test $ac_cv_prog_DOT = "yes" && 501 test $ac_cv_prog_XSLTPROC = "yes" && 502 test $ac_cv_prog_XMLLINT = "yes" && 503 test $ac_cv_prog_DBLATEX = "yes" && 504 test $ac_cv_prog_PDFLATEX = "yes") 505 506 case "$build" in 507 *-*-darwin* ) glibcxx_include_dir_notparallel=yes ;; 508 * ) glibcxx_include_dir_notparallel=no ;; 509 esac 510 AM_CONDITIONAL(INCLUDE_DIR_NOTPARALLEL, 511 test $glibcxx_include_dir_notparallel = "yes") 512 513 # Propagate the target-specific source directories through the build chain. 514 ATOMICITY_SRCDIR=config/${atomicity_dir} 515 ATOMIC_WORD_SRCDIR=config/${atomic_word_dir} 516 ATOMIC_FLAGS=${atomic_flags} 517 CPU_DEFINES_SRCDIR=config/${cpu_defines_dir} 518 OS_INC_SRCDIR=config/${os_include_dir} 519 ERROR_CONSTANTS_SRCDIR=config/${error_constants_dir} 520 ABI_TWEAKS_SRCDIR=config/${abi_tweaks_dir} 521 CPU_OPT_EXT_RANDOM=config/${cpu_opt_ext_random} 522 CPU_OPT_BITS_RANDOM=config/${cpu_opt_bits_random} 523 AC_SUBST(ATOMICITY_SRCDIR) 524 AC_SUBST(ATOMIC_WORD_SRCDIR) 525 AC_SUBST(ATOMIC_FLAGS) 526 AC_SUBST(CPU_DEFINES_SRCDIR) 527 AC_SUBST(ABI_TWEAKS_SRCDIR) 528 AC_SUBST(OS_INC_SRCDIR) 529 AC_SUBST(ERROR_CONSTANTS_SRCDIR) 530 AC_SUBST(CPU_OPT_EXT_RANDOM) 531 AC_SUBST(CPU_OPT_BITS_RANDOM) 532 533 534 # Add CET specific flags if Intel CET is enabled. 535 GCC_CET_FLAGS(CET_FLAGS) 536 EXTRA_CXX_FLAGS="$EXTRA_CXX_FLAGS $CET_FLAGS" 537 EXTRA_CFLAGS="$EXTRA_CFLAGS $CET_FLAGS" 538 AC_SUBST(EXTRA_CFLAGS) 539 AC_SUBST(EXTRA_CXX_FLAGS) 540 541 # Determine cross-compile flags and AM_CONDITIONALs. 542 #AC_SUBST(GLIBCXX_IS_NATIVE) 543 #AM_CONDITIONAL(CANADIAN, test $CANADIAN = yes) 544 GLIBCXX_EVALUATE_CONDITIONALS 545 546 AC_CACHE_SAVE 547 548 if test ${multilib} = yes; then 549 multilib_arg="--enable-multilib" 550 else 551 multilib_arg= 552 fi 553 554 # Export all the install information. 555 GLIBCXX_EXPORT_INSTALL_INFO 556 557 # Export all the include and flag information to Makefiles. 558 GLIBCXX_EXPORT_INCLUDES 559 GLIBCXX_EXPORT_FLAGS 560 561 # Determine what GCC version number to use in filesystem paths. 562 GCC_BASE_VER 563 564 dnl In autoconf 2.5x, AC_OUTPUT is replaced by four AC_CONFIG_* macros, 565 dnl which can all be called multiple times as needed, plus one (different) 566 dnl AC_OUTPUT macro. This one lists the files to be created: 567 AC_CONFIG_FILES(Makefile) 568 AC_CONFIG_FILES([scripts/testsuite_flags],[chmod +x scripts/testsuite_flags]) 569 AC_CONFIG_FILES([scripts/extract_symvers],[chmod +x scripts/extract_symvers]) 570 AC_CONFIG_FILES([doc/xsl/customization.xsl]) 571 572 # Multilibs need MULTISUBDIR defined correctly in certain makefiles so 573 # that multilib installs will end up installed in the correct place. 574 # The testsuite needs it for multilib-aware ABI baseline files. 575 # To work around this not being passed down from config-ml.in -> 576 # srcdir/Makefile.am -> srcdir/{src,libsupc++,...}/Makefile.am, manually 577 # append it here. Only modify Makefiles that have just been created. 578 # 579 # Also, get rid of this simulated-VPATH thing that automake does. 580 AC_CONFIG_FILES(AC_FOREACH([DIR], glibcxx_SUBDIRS, [DIR/Makefile ]), 581 [cat > vpsed$$ << \_EOF 582 s!`test -f '$<' || echo '$(srcdir)/'`!! 583 _EOF 584 sed -f vpsed$$ $ac_file > tmp$$ 585 mv tmp$$ $ac_file 586 rm vpsed$$ 587 echo 'MULTISUBDIR =' >> $ac_file 588 ml_norecursion=yes 589 . ${multi_basedir}/config-ml.in 590 AS_UNSET([ml_norecursion]) 591 ]) 592 593 AC_CONFIG_COMMANDS([generate-headers], 594 [(cd include && ${MAKE-make} pch_build= )]) 595 596 dnl And this actually makes things happen: 597 AC_OUTPUT 598
Indexes created Sat Jun 27 00:24:51 UTC 2026