configure.ac revision 1.11
1# Process this file with autoreconf to produce a configure script. 2 3AC_INIT(package-unused, version-unused,, libstdc++) 4AC_CONFIG_SRCDIR(src/shared/hashtable-aux.cc) 5AC_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. 14AM_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 $with_cross_host. 27# 28# Do not delete or change the following two lines. For why, see 29# http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html 30AC_CANONICAL_SYSTEM 31target_alias=${target_alias-$host_alias} 32 33# Handy for debugging: 34#AC_MSG_NOTICE($build / $host / $target / $host_alias / $target_alias); sleep 5 35 36if test "$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 $targetos = darwin ; then 52 GLIBCXX_IS_NATIVE=true 53 fi 54 ;; 55 56 *) 57 GCC_NO_EXECUTABLES 58 ;; 59 esac 60else 61 GLIBCXX_IS_NATIVE=true 62fi 63 64# Sets up automake. Must come after AC_CANONICAL_SYSTEM. Each of the 65# following is magically included in AUTOMAKE_OPTIONS in each Makefile.am. 66# 1.x: minimum required version 67# no-define: PACKAGE and VERSION will not be #define'd in config.h (a bunch 68# of other PACKAGE_* variables will, however, and there's nothing 69# we can do about that; they come from AC_INIT). 70# foreign: we don't follow the normal rules for GNU packages (no COPYING 71# file in the top srcdir, etc, etc), so stop complaining. 72# no-dependencies: turns off auto dependency generation (just for now) 73# no-dist: we don't want 'dist' and related rules. 74# -Wall: turns on all automake warnings... 75# -Wno-portability: ...except this one, since GNU make is now required. 76AM_INIT_AUTOMAKE([1.9.3 no-define foreign no-dependencies no-dist -Wall -Wno-portability -Wno-override]) 77AH_TEMPLATE(PACKAGE, [Name of package]) 78AH_TEMPLATE(VERSION, [Version number of package]) 79 80# -fno-builtin must be present here so that a non-conflicting form of 81# std::exit can be guessed by AC_PROG_CXX, and used in later tests. 82 83save_CXXFLAGS="$CXXFLAGS" 84CXXFLAGS="$CXXFLAGS -fno-builtin" 85AC_PROG_CC 86AC_PROG_CXX 87CXXFLAGS="$save_CXXFLAGS" 88 89AC_SYS_LARGEFILE 90 91# Runs configure.host, and assorted other critical bits. Sets 92# up critical shell variables. 93GLIBCXX_CONFIGURE 94 95# Libtool setup. 96if test "x${with_newlib}" != "xyes" && 97 test "x${with_avrlibc}" != "xyes" && 98 test "x$with_headers" != "xno"; then 99 AC_LIBTOOL_DLOPEN 100fi 101AM_PROG_LIBTOOL 102ACX_LT_HOST_FLAGS 103AC_SUBST(enable_shared) 104AC_SUBST(enable_static) 105 106if test "$enable_vtable_verify" = yes; then 107 predep_objects_CXX="${predep_objects_CXX} ${glibcxx_builddir}/../libgcc/vtv_start.o" 108 postdep_objects_CXX="${postdep_objects_CXX} ${glibcxx_builddir}/../libgcc/vtv_end.o" 109fi 110 111 112# libtool variables for C++ shared and position-independent compiles. 113# 114# Use glibcxx_lt_pic_flag to designate the automake variable 115# used to encapsulate the default libtool approach to creating objects 116# with position-independent code. Default: -prefer-pic. 117# 118# Use glibcxx_compiler_shared_flag to designate a compile-time flags for 119# creating shared objects. Default: -D_GLIBCXX_SHARED. 120# 121# Use glibcxx_compiler_pic_flag to designate a compile-time flags for 122# creating position-independent objects. This varies with the target 123# hardware and operating system, but is often: -DPIC -fPIC. 124if test "$enable_shared" = yes; then 125 glibcxx_lt_pic_flag="-prefer-pic" 126 glibcxx_compiler_pic_flag="$lt_prog_compiler_pic_CXX" 127 glibcxx_compiler_shared_flag="-D_GLIBCXX_SHARED" 128 129else 130 glibcxx_lt_pic_flag= 131 glibcxx_compiler_pic_flag= 132 glibcxx_compiler_shared_flag= 133fi 134AC_SUBST(glibcxx_lt_pic_flag) 135AC_SUBST(glibcxx_compiler_pic_flag) 136AC_SUBST(glibcxx_compiler_shared_flag) 137 138# Override the libtool's pic_flag and pic_mode. 139# Do this step after AM_PROG_LIBTOOL, but before AC_OUTPUT. 140# NB: this impacts --with-pic and --without-pic. 141lt_prog_compiler_pic_CXX="$glibcxx_compiler_pic_flag $glibcxx_compiler_shared_flag" 142pic_mode='default' 143 144# Eliminate -lstdc++ addition to postdeps for cross compiles. 145postdeps_CXX=`echo " $postdeps_CXX " | sed 's, -lstdc++ ,,g'` 146 147# Possibly disable most of the library. 148## TODO: Consider skipping unncessary tests altogether in this case, rather 149## than just ignoring the results. Faster /and/ more correct, win win. 150GLIBCXX_ENABLE_HOSTED 151 152# Enable descriptive messages to standard output on termination. 153GLIBCXX_ENABLE_VERBOSE 154 155# Enable compiler support that doesn't require linking. 156GLIBCXX_ENABLE_PCH($is_hosted) 157GLIBCXX_ENABLE_THREADS 158GLIBCXX_ENABLE_ATOMIC_BUILTINS 159GLIBCXX_ENABLE_LOCK_POLICY 160GLIBCXX_ENABLE_DECIMAL_FLOAT 161GLIBCXX_ENABLE_FLOAT128 162if test "$enable_float128" = yes; then 163 port_specific_symbol_files="$port_specific_symbol_files \$(top_srcdir)/config/abi/pre/float128.ver" 164fi 165 166# Checks for compiler support that doesn't require linking. 167GLIBCXX_CHECK_COMPILER_FEATURES 168 169# Enable all the variable C++ runtime options that don't require linking. 170GLIBCXX_ENABLE_CSTDIO 171GLIBCXX_ENABLE_CLOCALE 172GLIBCXX_ENABLE_ALLOCATOR 173GLIBCXX_ENABLE_CHEADERS($c_model) dnl c_model from configure.host 174GLIBCXX_ENABLE_LONG_LONG([yes]) 175GLIBCXX_ENABLE_WCHAR_T([yes]) 176GLIBCXX_ENABLE_C99([yes]) 177GLIBCXX_ENABLE_CONCEPT_CHECKS([no]) 178GLIBCXX_ENABLE_DEBUG_FLAGS(["-g3 -O0 -D_GLIBCXX_ASSERTIONS"]) 179GLIBCXX_ENABLE_DEBUG([no]) 180GLIBCXX_ENABLE_PARALLEL([yes]) 181GLIBCXX_ENABLE_CXX_FLAGS 182GLIBCXX_ENABLE_FULLY_DYNAMIC_STRING([no]) 183GLIBCXX_ENABLE_EXTERN_TEMPLATE([yes]) 184GLIBCXX_ENABLE_PYTHON 185GLIBCXX_ENABLE_WERROR([no]) 186GLIBCXX_ENABLE_VTABLE_VERIFY([no]) 187 188# Checks for operating systems support that doesn't require linking. 189GLIBCXX_CHECK_STDIO_PROTO 190GLIBCXX_CHECK_MATH11_PROTO 191GLIBCXX_CHECK_UCHAR_H 192 193# For LFS support. 194GLIBCXX_CHECK_LFS 195 196# For showmanyc_helper(). 197AC_CHECK_HEADERS(sys/ioctl.h sys/filio.h) 198GLIBCXX_CHECK_POLL 199GLIBCXX_CHECK_S_ISREG_OR_S_IFREG 200 201# For xsputn_2(). 202AC_CHECK_HEADERS(sys/uio.h) 203GLIBCXX_CHECK_WRITEV 204 205# Check for fenv.h and complex.h before GLIBCXX_CHECK_C99_TR1 206# so that the check is done with the C compiler (not C++). 207# Checking with C++ can break a canadian cross build if either 208# file does not exist in C but does in C++. 209AC_CHECK_HEADERS(fenv.h complex.h) 210 211# For C99 support to TR1. 212GLIBCXX_CHECK_C99_TR1 213 214# For the EOF, SEEK_CUR, and SEEK_END integer constants. 215GLIBCXX_COMPUTE_STDIO_INTEGER_CONSTANTS 216 217# For gettimeofday support. 218GLIBCXX_CHECK_GETTIMEOFDAY 219 220# For clock_gettime, nanosleep and sched_yield support. 221GLIBCXX_ENABLE_LIBSTDCXX_TIME 222 223# Check for tmpnam which is obsolescent in POSIX.1-2008 224GLIBCXX_CHECK_TMPNAM 225 226# For pthread_cond_clockwait 227GLIBCXX_CHECK_PTHREAD_COND_CLOCKWAIT 228 229# For pthread_mutex_clocklock 230GLIBCXX_CHECK_PTHREAD_MUTEX_CLOCKLOCK 231 232# For pthread_rwlock_clockrdlock and pthread_rwlock_clockwrlock 233GLIBCXX_CHECK_PTHREAD_RWLOCK_CLOCKLOCK 234 235AC_LC_MESSAGES 236 237# For hardware_concurrency 238AC_CHECK_HEADERS(sys/sysinfo.h) 239GLIBCXX_CHECK_GET_NPROCS 240AC_CHECK_HEADERS(unistd.h) 241GLIBCXX_CHECK_SC_NPROCESSORS_ONLN 242GLIBCXX_CHECK_SC_NPROC_ONLN 243GLIBCXX_CHECK_PTHREADS_NUM_PROCESSORS_NP 244GLIBCXX_CHECK_SYSCTL_HW_NCPU 245GLIBCXX_CHECK_SDT_H 246 247# Check for available headers. 248AC_CHECK_HEADERS([endian.h execinfo.h float.h fp.h ieeefp.h inttypes.h \ 249locale.h machine/endian.h machine/param.h nan.h stdint.h stdlib.h string.h \ 250strings.h sys/ipc.h sys/isa_defs.h sys/machine.h sys/param.h \ 251sys/resource.h sys/sem.h sys/stat.h sys/time.h sys/types.h unistd.h \ 252wchar.h wctype.h linux/types.h]) 253 254AC_CHECK_HEADERS([linux/random.h], [], [], 255[[#ifdef HAVE_LINUX_TYPES_H 256# include <linux/types.h> 257#endif 258]]) 259 260AC_CHECK_HEADERS([xlocale.h]) 261 262# Only do link tests if native. Else, hardcode. 263if $GLIBCXX_IS_NATIVE; then 264 265 # We can do more elaborate tests that assume a working linker. 266 CANADIAN=no 267 268 GLIBCXX_CHECK_LINKER_FEATURES 269 GLIBCXX_CHECK_MATH_SUPPORT 270 GLIBCXX_CHECK_STDLIB_SUPPORT 271 272 # For /dev/random and /dev/urandom for std::random_device. 273 GLIBCXX_CHECK_DEV_RANDOM 274 275 # For TLS support. 276 GCC_CHECK_TLS 277 278 AC_CHECK_FUNCS(__cxa_thread_atexit_impl __cxa_thread_atexit) 279 AC_CHECK_FUNCS(aligned_alloc posix_memalign memalign _aligned_malloc) 280 AC_CHECK_FUNCS(_wfopen) 281 AC_CHECK_FUNCS(secure_getenv) 282 283 # C11 functions for C++17 library 284 AC_CHECK_FUNCS(timespec_get) 285 286 # For Networking TS. 287 AC_CHECK_FUNCS(sockatmark) 288 289 # Non-standard functions used by C++17 std::from_chars 290 AC_CHECK_FUNCS(uselocale) 291 292 # For iconv support. 293 AM_ICONV 294 295else 296 297 # This lets us hard-code the functionality we know we'll have in the cross 298 # target environment. "Let" is a sugar-coated word placed on an especially 299 # dull and tedious hack, actually. 300 # 301 # Here's why GLIBCXX_CHECK_MATH_SUPPORT, and other autoconf macros 302 # that involve linking, can't be used: 303 # "cannot open sim-crt0.o" 304 # "cannot open crt0.o" 305 # etc. All this is because there currently exists no unified, consistent 306 # way for top level CC information to be passed down to target directories: 307 # newlib includes, newlib linking info, libgloss versus newlib crt0.o, etc. 308 # When all of that is done, all of this hokey, excessive AC_DEFINE junk for 309 # crosses can be removed. 310 311 # If Canadian cross, then don't pick up tools from the build directory. 312 # Used only in GLIBCXX_EXPORT_INCLUDES. 313 if test -n "$with_cross_host" && 314 test x"$build_alias" != x"$with_cross_host" && 315 test x"$build" != x"$target"; 316 then 317 CANADIAN=yes 318 else 319 CANADIAN=no 320 fi 321 322 # Construct crosses by hand, eliminating bits that need ld... 323 # GLIBCXX_CHECK_MATH_SUPPORT 324 325 # First, test for "known" system libraries. We may be using newlib even 326 # on a hosted environment. 327 if test "x${with_newlib}" = "xyes"; then 328 os_include_dir="os/newlib" 329 AC_DEFINE(HAVE_HYPOT) 330 331 # GLIBCXX_CHECK_STDLIB_SUPPORT 332 AC_DEFINE(HAVE_STRTOF) 333 334 AC_DEFINE(HAVE_ACOSF) 335 AC_DEFINE(HAVE_ASINF) 336 AC_DEFINE(HAVE_ATAN2F) 337 AC_DEFINE(HAVE_ATANF) 338 AC_DEFINE(HAVE_CEILF) 339 AC_DEFINE(HAVE_COSF) 340 AC_DEFINE(HAVE_COSHF) 341 AC_DEFINE(HAVE_EXPF) 342 AC_DEFINE(HAVE_FABSF) 343 AC_DEFINE(HAVE_FLOORF) 344 AC_DEFINE(HAVE_FMODF) 345 AC_DEFINE(HAVE_FREXPF) 346 AC_DEFINE(HAVE_LDEXPF) 347 AC_DEFINE(HAVE_LOG10F) 348 AC_DEFINE(HAVE_LOGF) 349 AC_DEFINE(HAVE_MODFF) 350 AC_DEFINE(HAVE_POWF) 351 AC_DEFINE(HAVE_SINF) 352 AC_DEFINE(HAVE_SINHF) 353 AC_DEFINE(HAVE_SQRTF) 354 AC_DEFINE(HAVE_TANF) 355 AC_DEFINE(HAVE_TANHF) 356 357 AC_DEFINE(HAVE_ICONV) 358 AC_DEFINE(HAVE_MEMALIGN) 359 elif test "x$with_headers" != "xno"; then 360 GLIBCXX_CROSSCONFIG 361 fi 362 363 # At some point, we should differentiate between architectures 364 # like x86, which have long double versions, and alpha/powerpc/etc., 365 # which don't. For the time being, punt. 366 if test x"long_double_math_on_this_cpu" = x"yes"; then 367 AC_DEFINE(HAVE_ACOSL) 368 AC_DEFINE(HAVE_ASINL) 369 AC_DEFINE(HAVE_ATAN2L) 370 AC_DEFINE(HAVE_ATANL) 371 AC_DEFINE(HAVE_CEILL) 372 AC_DEFINE(HAVE_COSL) 373 AC_DEFINE(HAVE_COSHL) 374 AC_DEFINE(HAVE_EXPL) 375 AC_DEFINE(HAVE_FABSL) 376 AC_DEFINE(HAVE_FLOORL) 377 AC_DEFINE(HAVE_FMODL) 378 AC_DEFINE(HAVE_FREXPL) 379 AC_DEFINE(HAVE_LDEXPL) 380 AC_DEFINE(HAVE_LOG10L) 381 AC_DEFINE(HAVE_LOGL) 382 AC_DEFINE(HAVE_MODFL) 383 AC_DEFINE(HAVE_POWL) 384 AC_DEFINE(HAVE_SINCOSL) 385 AC_DEFINE(HAVE_SINL) 386 AC_DEFINE(HAVE_SINHL) 387 AC_DEFINE(HAVE_SQRTL) 388 AC_DEFINE(HAVE_TANL) 389 AC_DEFINE(HAVE_TANHL) 390 fi 391fi 392 393# Check for _Unwind_GetIPInfo. 394GCC_CHECK_UNWIND_GETIPINFO 395 396GCC_LINUX_FUTEX([AC_DEFINE(HAVE_LINUX_FUTEX, 1, [Define if futex syscall is available.])]) 397 398if test "$is_hosted" = yes; then 399# TODO: remove this and change src/c++11/compatibility-atomic-c++0x.cc to 400# use <stdint.h> instead of <gstdint.h>. 401GCC_HEADER_STDINT(include/gstdint.h) 402fi 403 404GLIBCXX_ENABLE_SYMVERS([yes]) 405AC_SUBST(libtool_VERSION) 406 407GLIBCXX_ENABLE_LIBSTDCXX_VISIBILITY([yes]) 408 409GLIBCXX_ENABLE_LIBSTDCXX_DUAL_ABI([yes]) 410GLIBCXX_DEFAULT_ABI 411 412ac_ldbl_compat=no 413ac_ldbl_alt128_compat=no 414ac_ldbl_ieee128_default=no 415LONG_DOUBLE_COMPAT_FLAGS="-mlong-double-64" 416LONG_DOUBLE_128_FLAGS= 417LONG_DOUBLE_ALT128_COMPAT_FLAGS= 418case "$target" in 419 powerpc*-*-linux* | \ 420 sparc*-*-linux* | \ 421 s390*-*-linux* | \ 422 alpha*-*-linux*) 423 AC_TRY_COMPILE(, [ 424#if !defined __LONG_DOUBLE_128__ || (defined(__sparc__) && defined(__arch64__)) 425#error no need for long double compatibility 426#endif 427 ], [ac_ldbl_compat=yes], [ac_ldbl_compat=no]) 428 if test "$ac_ldbl_compat" = yes; then 429 AC_DEFINE([_GLIBCXX_LONG_DOUBLE_COMPAT],1, 430 [Define if compatibility should be provided for -mlong-double-64.]) 431 port_specific_symbol_files="\$(top_srcdir)/config/os/gnu-linux/ldbl-extra.ver" 432 case "$target" in 433 powerpc*-*-linux*) 434 LONG_DOUBLE_COMPAT_FLAGS="$LONG_DOUBLE_COMPAT_FLAGS -mno-gnu-attribute" 435 # Check for IEEE128 support in libm: 436 AC_CHECK_LIB(m, __frexpieee128, 437 [ac_ldbl_ieee128_in_libc=yes], 438 [ac_ldbl_ieee128_in_libc=no]) 439 if test $ac_ldbl_ieee128_in_libc = yes; then 440 # Determine which long double format is the compiler's default: 441 AC_TRY_COMPILE(, [ 442 #ifndef __LONG_DOUBLE_IEEE128__ 443 #error compiler defaults to ibm128 444 #endif 445 ], [ac_ldbl_ieee128_default=yes], [ac_ldbl_ieee128_default=no]) 446 # Library objects should use default long double format. 447 if test "$ac_ldbl_ieee128_default" = yes; then 448 LONG_DOUBLE_128_FLAGS="-mno-gnu-attribute" 449 # Except for the ones that explicitly use these flags: 450 LONG_DOUBLE_ALT128_COMPAT_FLAGS="-mabi=ibmlongdouble -mno-gnu-attribute -Wno-psabi" 451 else 452 LONG_DOUBLE_128_FLAGS="-mno-gnu-attribute" 453 LONG_DOUBLE_ALT128_COMPAT_FLAGS="-mabi=ieeelongdouble -mno-gnu-attribute -Wno-psabi" 454 fi 455 AC_DEFINE([_GLIBCXX_LONG_DOUBLE_ALT128_COMPAT],1, 456 [Define if compatibility should be provided for alternative 128-bit long double formats.]) 457 port_specific_symbol_files="$port_specific_symbol_files \$(top_srcdir)/config/os/gnu-linux/ldbl-ieee128-extra.ver" 458 ac_ldbl_alt128_compat=yes 459 else 460 ac_ldbl_alt128_compat=no 461 fi 462 ;; 463 esac 464 fi 465esac 466AC_SUBST(LONG_DOUBLE_COMPAT_FLAGS) 467AC_SUBST(LONG_DOUBLE_128_FLAGS) 468AC_SUBST(LONG_DOUBLE_ALT128_COMPAT_FLAGS) 469GLIBCXX_CONDITIONAL(GLIBCXX_LDBL_COMPAT, test $ac_ldbl_compat = yes) 470GLIBCXX_CONDITIONAL(GLIBCXX_LDBL_ALT128_COMPAT, test $ac_ldbl_alt128_compat = yes) 471 472# Check if assembler supports disabling hardware capability support. 473GCC_CHECK_ASSEMBLER_HWCAP 474 475# Check if assembler supports rdrand opcode. 476GLIBCXX_CHECK_X86_RDRAND 477# Check if assembler supports rdseed opcode. 478GLIBCXX_CHECK_X86_RDSEED 479 480# Check for other random number APIs 481GLIBCXX_CHECK_GETENTROPY 482GLIBCXX_CHECK_ARC4RANDOM 483 484# This depends on GLIBCXX_ENABLE_SYMVERS and GLIBCXX_IS_NATIVE. 485GLIBCXX_CONFIGURE_TESTSUITE 486 487# For gthread support. Depends on GLIBCXX_ENABLE_SYMVERS. 488GLIBCXX_CHECK_GTHREADS 489 490# For Filesystem TS. 491AC_CHECK_HEADERS([fcntl.h dirent.h sys/statvfs.h utime.h]) 492GLIBCXX_ENABLE_FILESYSTEM_TS 493GLIBCXX_CHECK_FILESYSTEM_DEPS 494 495GLIBCXX_ENABLE_BACKTRACE 496 497# For Networking TS. 498AC_CHECK_HEADERS([fcntl.h sys/ioctl.h sys/socket.h sys/uio.h poll.h netdb.h arpa/inet.h netinet/in.h netinet/tcp.h]) 499AC_CHECK_DECL(F_GETFL,,,[#include <fcntl.h>]) 500AC_CHECK_DECL(F_SETFL,,,[#include <fcntl.h>]) 501if test "$ac_cv_have_decl_F_GETFL$ac_cv_have_decl_F_SETFL" = yesyes ; then 502 AC_CHECK_DECL(O_NONBLOCK,,,[#include <fcntl.h>]) 503fi 504 505# For Transactional Memory TS 506GLIBCXX_CHECK_SIZE_T_MANGLING 507 508# Check which release added std::exception_ptr for the target 509GLIBCXX_CHECK_EXCEPTION_PTR_SYMVER 510 511# Define documentation rules conditionally. 512 513# See if makeinfo has been installed and is modern enough 514# that we can use it. 515ACX_CHECK_PROG_VER([MAKEINFO], [makeinfo], [--version], 516 [GNU texinfo.* \([0-9][0-9.]*\)], 517 [4.[4-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*]) 518AM_CONDITIONAL(BUILD_INFO, test $gcc_cv_prog_makeinfo_modern = "yes") 519 520# Check for doxygen 521AC_CHECK_PROG([DOXYGEN], doxygen, yes, no) 522AC_CHECK_PROG([DOT], dot, yes, no) 523 524# Check for docbook 525AC_CHECK_PROG([XMLCATALOG], xmlcatalog, yes, no) 526AC_CHECK_PROG([XSLTPROC], xsltproc, yes, no) 527AC_CHECK_PROG([XMLLINT], xmllint, yes, no) 528GLIBCXX_CONFIGURE_DOCBOOK 529 530# Check for xml/html dependencies. 531AM_CONDITIONAL(BUILD_XML, 532 test $ac_cv_prog_DOXYGEN = "yes" && 533 test $ac_cv_prog_DOT = "yes" && 534 test $ac_cv_prog_XSLTPROC = "yes" && 535 test $ac_cv_prog_XMLLINT = "yes" && 536 test $glibcxx_stylesheets = "yes") 537 538AM_CONDITIONAL(BUILD_HTML, 539 test $ac_cv_prog_DOXYGEN = "yes" && 540 test $ac_cv_prog_DOT = "yes" && 541 test $ac_cv_prog_XSLTPROC = "yes" && 542 test $ac_cv_prog_XMLLINT = "yes" && 543 test $glibcxx_stylesheets = "yes") 544 545# Check for man dependencies. 546AM_CONDITIONAL(BUILD_MAN, 547 test $ac_cv_prog_DOXYGEN = "yes" && 548 test $ac_cv_prog_DOT = "yes") 549 550# Check for pdf dependencies. 551AC_CHECK_PROG([DBLATEX], dblatex, yes, no) 552AC_CHECK_PROG([PDFLATEX], pdflatex, yes, no) 553AM_CONDITIONAL(BUILD_PDF, 554 test $ac_cv_prog_DOXYGEN = "yes" && 555 test $ac_cv_prog_DOT = "yes" && 556 test $ac_cv_prog_XSLTPROC = "yes" && 557 test $ac_cv_prog_XMLLINT = "yes" && 558 test $ac_cv_prog_DBLATEX = "yes" && 559 test $ac_cv_prog_PDFLATEX = "yes") 560 561case "$build" in 562 *-*-darwin* ) glibcxx_include_dir_notparallel=yes ;; 563 * ) glibcxx_include_dir_notparallel=no ;; 564esac 565AM_CONDITIONAL(INCLUDE_DIR_NOTPARALLEL, 566 test $glibcxx_include_dir_notparallel = "yes") 567 568# Propagate the target-specific source directories through the build chain. 569ATOMICITY_SRCDIR=config/${atomicity_dir} 570ATOMIC_WORD_SRCDIR=config/${atomic_word_dir} 571ATOMIC_FLAGS=${atomic_flags} 572CPU_DEFINES_SRCDIR=config/${cpu_defines_dir} 573OS_INC_SRCDIR=config/${os_include_dir} 574ERROR_CONSTANTS_SRCDIR=config/${error_constants_dir} 575ABI_TWEAKS_SRCDIR=config/${abi_tweaks_dir} 576CPU_OPT_EXT_RANDOM=config/${cpu_opt_ext_random} 577CPU_OPT_BITS_RANDOM=config/${cpu_opt_bits_random} 578AC_SUBST(ATOMICITY_SRCDIR) 579AC_SUBST(ATOMIC_WORD_SRCDIR) 580AC_SUBST(ATOMIC_FLAGS) 581AC_SUBST(CPU_DEFINES_SRCDIR) 582AC_SUBST(ABI_TWEAKS_SRCDIR) 583AC_SUBST(OS_INC_SRCDIR) 584AC_SUBST(ERROR_CONSTANTS_SRCDIR) 585AC_SUBST(CPU_OPT_EXT_RANDOM) 586AC_SUBST(CPU_OPT_BITS_RANDOM) 587 588# Conditionalize the makefile for this target machine. 589tmake_file_= 590for f in ${tmake_file} 591do 592 if test -f ${srcdir}/config/$f 593 then 594 tmake_file_="${tmake_file_} \$(srcdir)/config/$f" 595 fi 596done 597tmake_file="${tmake_file_}" 598AC_SUBST(tmake_file) 599 600# Add CET specific flags if Intel CET is enabled. 601GCC_CET_FLAGS(CET_FLAGS) 602EXTRA_CXX_FLAGS="$EXTRA_CXX_FLAGS $CET_FLAGS" 603EXTRA_CFLAGS="$EXTRA_CFLAGS $CET_FLAGS" 604AC_SUBST(EXTRA_CFLAGS) 605AC_SUBST(EXTRA_CXX_FLAGS) 606 607# Determine cross-compile flags and AM_CONDITIONALs. 608#AC_SUBST(GLIBCXX_IS_NATIVE) 609#AM_CONDITIONAL(CANADIAN, test $CANADIAN = yes) 610GLIBCXX_EVALUATE_CONDITIONALS 611 612AC_CACHE_SAVE 613 614if test ${multilib} = yes; then 615 multilib_arg="--enable-multilib" 616else 617 multilib_arg= 618fi 619 620# Export all the install information. 621GLIBCXX_EXPORT_INSTALL_INFO 622 623# Export all the include and flag information to Makefiles. 624GLIBCXX_EXPORT_INCLUDES 625GLIBCXX_EXPORT_FLAGS 626 627# Determine what GCC version number to use in filesystem paths. 628GCC_BASE_VER 629 630dnl In autoconf 2.5x, AC_OUTPUT is replaced by four AC_CONFIG_* macros, 631dnl which can all be called multiple times as needed, plus one (different) 632dnl AC_OUTPUT macro. This one lists the files to be created: 633AC_CONFIG_FILES(Makefile) 634AC_CONFIG_FILES([scripts/testsuite_flags],[chmod +x scripts/testsuite_flags]) 635AC_CONFIG_FILES([scripts/extract_symvers],[chmod +x scripts/extract_symvers]) 636AC_CONFIG_FILES([doc/xsl/customization.xsl]) 637AC_CONFIG_FILES([src/libbacktrace/backtrace-supported.h]) 638 639# Multilibs need MULTISUBDIR defined correctly in certain makefiles so 640# that multilib installs will end up installed in the correct place. 641# The testsuite needs it for multilib-aware ABI baseline files. 642# To work around this not being passed down from config-ml.in -> 643# srcdir/Makefile.am -> srcdir/{src,libsupc++,...}/Makefile.am, manually 644# append it here. Only modify Makefiles that have just been created. 645# 646# Also, get rid of this simulated-VPATH thing that automake does. 647AC_CONFIG_FILES(AC_FOREACH([DIR], glibcxx_SUBDIRS, [DIR/Makefile ]), 648 [cat > vpsed$$ << \_EOF 649s!`test -f '$<' || echo '$(srcdir)/'`!! 650_EOF 651 sed -f vpsed$$ $ac_file > tmp$$ 652 mv tmp$$ $ac_file 653 rm vpsed$$ 654 echo 'MULTISUBDIR =' >> $ac_file 655 ml_norecursion=yes 656 . ${multi_basedir}/config-ml.in 657 AS_UNSET([ml_norecursion]) 658]) 659 660AC_CONFIG_COMMANDS([generate-headers], 661 [(cd include && ${MAKE-make} pch_build= )]) 662 663dnl And this actually makes things happen: 664AC_OUTPUT 665