110d565efSmrg# Process this file with autoreconf to produce a configure script. 210d565efSmrg 310d565efSmrgAC_INIT(package-unused, version-unused,, libstdc++) 410d565efSmrgAC_CONFIG_SRCDIR(src/shared/hashtable-aux.cc) 510d565efSmrgAC_CONFIG_HEADER(config.h) 610d565efSmrg 710d565efSmrg# This works around the fact that libtool configuration may change LD 810d565efSmrg# for this particular configuration, but some shells, instead of 910d565efSmrg# keeping the changes in LD private, export them just because LD is 1010d565efSmrg# exported. Only used at the end of this file. 1110d565efSmrg### am handles this now? ORIGINAL_LD_FOR_MULTILIBS=$LD 1210d565efSmrg 1310d565efSmrg# Find the rest of the source tree framework. 1410d565efSmrgAM_ENABLE_MULTILIB(, ..) 1510d565efSmrg 1610d565efSmrg# Gets build, host, target, *_vendor, *_cpu, *_os, etc. 1710d565efSmrg# 1810d565efSmrg# You will slowly go insane if you do not grok the following fact: when 1910d565efSmrg# building v3 as part of the compiler, the top-level /target/ becomes the 2010d565efSmrg# library's /host/. configure then causes --target to default to --host, 2110d565efSmrg# exactly like any other package using autoconf. Therefore, 'target' and 2210d565efSmrg# 'host' will always be the same. This makes sense both for native and 2310d565efSmrg# cross compilers, just think about it for a little while. :-) 2410d565efSmrg# 2510d565efSmrg# Also, if v3 is being configured as part of a cross compiler, the top-level 2610d565efSmrg# configure script will pass the "real" host as $with_cross_host. 2710d565efSmrg# 2810d565efSmrg# Do not delete or change the following two lines. For why, see 2910d565efSmrg# http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html 3010d565efSmrgAC_CANONICAL_SYSTEM 3110d565efSmrgtarget_alias=${target_alias-$host_alias} 3210d565efSmrg 3310d565efSmrg# Handy for debugging: 3410d565efSmrg#AC_MSG_NOTICE($build / $host / $target / $host_alias / $target_alias); sleep 5 3510d565efSmrg 3610d565efSmrgif test "$build" != "$host"; then 3710d565efSmrg # We are being configured with some form of cross compiler. 3810d565efSmrg GLIBCXX_IS_NATIVE=false 3910d565efSmrg case "$host","$target" in 4010d565efSmrg *-*-netbsd*,*-*-netbsd*) 4110d565efSmrg GLIBCXX_IS_NATIVE=true 4210d565efSmrg ;; 4310d565efSmrg # Darwin crosses can use the host system's libraries and headers, 4410d565efSmrg # because of the fat library support. Of course, it must be the 4510d565efSmrg # same version of Darwin on both sides. Allow the user to 4610d565efSmrg # just say --target=foo-darwin without a version number to mean 4710d565efSmrg # "the version on this system". 4810d565efSmrg *-*-darwin*,*-*-darwin*) 4910d565efSmrg hostos=`echo $host | sed 's/.*-darwin/darwin/'` 5010d565efSmrg targetos=`echo $target | sed 's/.*-darwin/darwin/'` 5110d565efSmrg if test $hostos = $targetos -o $targetos = darwin ; then 5210d565efSmrg GLIBCXX_IS_NATIVE=true 5310d565efSmrg fi 5410d565efSmrg ;; 5510d565efSmrg 5610d565efSmrg *) 5710d565efSmrg GCC_NO_EXECUTABLES 5810d565efSmrg ;; 5910d565efSmrg esac 6010d565efSmrgelse 6110d565efSmrg GLIBCXX_IS_NATIVE=true 6210d565efSmrgfi 6310d565efSmrg 6410d565efSmrg# Sets up automake. Must come after AC_CANONICAL_SYSTEM. Each of the 6510d565efSmrg# following is magically included in AUTOMAKE_OPTIONS in each Makefile.am. 6610d565efSmrg# 1.x: minimum required version 6710d565efSmrg# no-define: PACKAGE and VERSION will not be #define'd in config.h (a bunch 6810d565efSmrg# of other PACKAGE_* variables will, however, and there's nothing 6910d565efSmrg# we can do about that; they come from AC_INIT). 7010d565efSmrg# foreign: we don't follow the normal rules for GNU packages (no COPYING 7110d565efSmrg# file in the top srcdir, etc, etc), so stop complaining. 7210d565efSmrg# no-dependencies: turns off auto dependency generation (just for now) 7310d565efSmrg# no-dist: we don't want 'dist' and related rules. 7410d565efSmrg# -Wall: turns on all automake warnings... 7510d565efSmrg# -Wno-portability: ...except this one, since GNU make is now required. 7610d565efSmrgAM_INIT_AUTOMAKE([1.9.3 no-define foreign no-dependencies no-dist -Wall -Wno-portability -Wno-override]) 7710d565efSmrgAH_TEMPLATE(PACKAGE, [Name of package]) 7810d565efSmrgAH_TEMPLATE(VERSION, [Version number of package]) 7910d565efSmrg 8010d565efSmrg# -fno-builtin must be present here so that a non-conflicting form of 8110d565efSmrg# std::exit can be guessed by AC_PROG_CXX, and used in later tests. 8210d565efSmrg 8310d565efSmrgsave_CXXFLAGS="$CXXFLAGS" 8410d565efSmrgCXXFLAGS="$CXXFLAGS -fno-builtin" 8510d565efSmrgAC_PROG_CC 8610d565efSmrgAC_PROG_CXX 8710d565efSmrgCXXFLAGS="$save_CXXFLAGS" 8810d565efSmrg 89c7a68eb7SmrgAC_SYS_LARGEFILE 90c7a68eb7Smrg 9110d565efSmrg# Runs configure.host, and assorted other critical bits. Sets 9210d565efSmrg# up critical shell variables. 9310d565efSmrgGLIBCXX_CONFIGURE 9410d565efSmrg 9510d565efSmrg# Libtool setup. 9610d565efSmrgif test "x${with_newlib}" != "xyes"; then 9710d565efSmrg AC_LIBTOOL_DLOPEN 9810d565efSmrgfi 9910d565efSmrgAM_PROG_LIBTOOL 10010d565efSmrgACX_LT_HOST_FLAGS 10110d565efSmrgAC_SUBST(enable_shared) 10210d565efSmrgAC_SUBST(enable_static) 10310d565efSmrg 10410d565efSmrgif test "$enable_vtable_verify" = yes; then 10510d565efSmrg predep_objects_CXX="${predep_objects_CXX} ${glibcxx_builddir}/../libgcc/vtv_start.o" 10610d565efSmrg postdep_objects_CXX="${postdep_objects_CXX} ${glibcxx_builddir}/../libgcc/vtv_end.o" 10710d565efSmrgfi 10810d565efSmrg 10910d565efSmrg 11010d565efSmrg# libtool variables for C++ shared and position-independent compiles. 11110d565efSmrg# 11210d565efSmrg# Use glibcxx_lt_pic_flag to designate the automake variable 11310d565efSmrg# used to encapsulate the default libtool approach to creating objects 11410d565efSmrg# with position-independent code. Default: -prefer-pic. 11510d565efSmrg# 11610d565efSmrg# Use glibcxx_compiler_shared_flag to designate a compile-time flags for 11710d565efSmrg# creating shared objects. Default: -D_GLIBCXX_SHARED. 11810d565efSmrg# 11910d565efSmrg# Use glibcxx_compiler_pic_flag to designate a compile-time flags for 12010d565efSmrg# creating position-independent objects. This varies with the target 12110d565efSmrg# hardware and operating system, but is often: -DPIC -fPIC. 12210d565efSmrgif test "$enable_shared" = yes; then 12310d565efSmrg glibcxx_lt_pic_flag="-prefer-pic" 12410d565efSmrg glibcxx_compiler_pic_flag="$lt_prog_compiler_pic_CXX" 12510d565efSmrg glibcxx_compiler_shared_flag="-D_GLIBCXX_SHARED" 12610d565efSmrg 12710d565efSmrgelse 12810d565efSmrg glibcxx_lt_pic_flag= 12910d565efSmrg glibcxx_compiler_pic_flag= 13010d565efSmrg glibcxx_compiler_shared_flag= 13110d565efSmrgfi 13210d565efSmrgAC_SUBST(glibcxx_lt_pic_flag) 13310d565efSmrgAC_SUBST(glibcxx_compiler_pic_flag) 13410d565efSmrgAC_SUBST(glibcxx_compiler_shared_flag) 13510d565efSmrg 13610d565efSmrg# Override the libtool's pic_flag and pic_mode. 13710d565efSmrg# Do this step after AM_PROG_LIBTOOL, but before AC_OUTPUT. 13810d565efSmrg# NB: this impacts --with-pic and --without-pic. 13910d565efSmrglt_prog_compiler_pic_CXX="$glibcxx_compiler_pic_flag $glibcxx_compiler_shared_flag" 14010d565efSmrgpic_mode='default' 14110d565efSmrg 14210d565efSmrg# Eliminate -lstdc++ addition to postdeps for cross compiles. 14310d565efSmrgpostdeps_CXX=`echo " $postdeps_CXX " | sed 's, -lstdc++ ,,g'` 14410d565efSmrg 14510d565efSmrg# Possibly disable most of the library. 14610d565efSmrg## TODO: Consider skipping unncessary tests altogether in this case, rather 14710d565efSmrg## than just ignoring the results. Faster /and/ more correct, win win. 14810d565efSmrgGLIBCXX_ENABLE_HOSTED 14910d565efSmrg 15010d565efSmrg# Enable descriptive messages to standard output on termination. 15110d565efSmrgGLIBCXX_ENABLE_VERBOSE 15210d565efSmrg 15310d565efSmrg# Enable compiler support that doesn't require linking. 15410d565efSmrgGLIBCXX_ENABLE_PCH($is_hosted) 15510d565efSmrgGLIBCXX_ENABLE_THREADS 15610d565efSmrgGLIBCXX_ENABLE_ATOMIC_BUILTINS 1570fc04c29SmrgGLIBCXX_ENABLE_LOCK_POLICY 15810d565efSmrgGLIBCXX_ENABLE_DECIMAL_FLOAT 15910d565efSmrgGLIBCXX_ENABLE_INT128_FLOAT128 16010d565efSmrgif test "$enable_float128" = yes; then 16110d565efSmrg port_specific_symbol_files="$port_specific_symbol_files \$(top_srcdir)/config/abi/pre/float128.ver" 16210d565efSmrgfi 16310d565efSmrg 16410d565efSmrg# Checks for compiler support that doesn't require linking. 16510d565efSmrgGLIBCXX_CHECK_COMPILER_FEATURES 16610d565efSmrg 16710d565efSmrg# Enable all the variable C++ runtime options that don't require linking. 16810d565efSmrgGLIBCXX_ENABLE_CSTDIO 16910d565efSmrgGLIBCXX_ENABLE_CLOCALE 17010d565efSmrgGLIBCXX_ENABLE_ALLOCATOR 17110d565efSmrgGLIBCXX_ENABLE_CHEADERS($c_model) dnl c_model from configure.host 17210d565efSmrgGLIBCXX_ENABLE_LONG_LONG([yes]) 17310d565efSmrgGLIBCXX_ENABLE_WCHAR_T([yes]) 17410d565efSmrgGLIBCXX_ENABLE_C99([yes]) 17510d565efSmrgGLIBCXX_ENABLE_CONCEPT_CHECKS([no]) 1760fc04c29SmrgGLIBCXX_ENABLE_DEBUG_FLAGS(["-gdwarf-4 -g3 -O0 -D_GLIBCXX_ASSERTIONS"]) 17710d565efSmrgGLIBCXX_ENABLE_DEBUG([no]) 17810d565efSmrgGLIBCXX_ENABLE_PARALLEL([yes]) 17910d565efSmrgGLIBCXX_ENABLE_CXX_FLAGS 18010d565efSmrgGLIBCXX_ENABLE_FULLY_DYNAMIC_STRING([no]) 18110d565efSmrgGLIBCXX_ENABLE_EXTERN_TEMPLATE([yes]) 18210d565efSmrgGLIBCXX_ENABLE_PYTHON 1830fc04c29SmrgGLIBCXX_ENABLE_WERROR([no]) 18410d565efSmrgGLIBCXX_ENABLE_VTABLE_VERIFY([no]) 18510d565efSmrg 18610d565efSmrg# Checks for operating systems support that doesn't require linking. 18710d565efSmrgGLIBCXX_CHECK_STDIO_PROTO 18810d565efSmrgGLIBCXX_CHECK_MATH11_PROTO 18910d565efSmrgGLIBCXX_CHECK_UCHAR_H 19010d565efSmrg 19110d565efSmrg# For the streamoff typedef. 19210d565efSmrgGLIBCXX_CHECK_INT64_T 19310d565efSmrg 19410d565efSmrg# For LFS support. 19510d565efSmrgGLIBCXX_CHECK_LFS 19610d565efSmrg 19710d565efSmrg# For showmanyc_helper(). 19810d565efSmrgAC_CHECK_HEADERS(sys/ioctl.h sys/filio.h) 19910d565efSmrgGLIBCXX_CHECK_POLL 20010d565efSmrgGLIBCXX_CHECK_S_ISREG_OR_S_IFREG 20110d565efSmrg 20210d565efSmrg# For xsputn_2(). 20310d565efSmrgAC_CHECK_HEADERS(sys/uio.h) 20410d565efSmrgGLIBCXX_CHECK_WRITEV 20510d565efSmrg 20610d565efSmrg# Check for fenv.h and complex.h before GLIBCXX_CHECK_C99_TR1 20710d565efSmrg# so that the check is done with the C compiler (not C++). 20810d565efSmrg# Checking with C++ can break a canadian cross build if either 20910d565efSmrg# file does not exist in C but does in C++. 21010d565efSmrgAC_CHECK_HEADERS(fenv.h complex.h) 21110d565efSmrg 21210d565efSmrg# For C99 support to TR1. 21310d565efSmrgGLIBCXX_CHECK_C99_TR1 21410d565efSmrg 21510d565efSmrg# For the EOF, SEEK_CUR, and SEEK_END integer constants. 21610d565efSmrgGLIBCXX_COMPUTE_STDIO_INTEGER_CONSTANTS 21710d565efSmrg 21810d565efSmrg# For gettimeofday support. 21910d565efSmrgGLIBCXX_CHECK_GETTIMEOFDAY 22010d565efSmrg 22110d565efSmrg# For clock_gettime, nanosleep and sched_yield support. 22210d565efSmrgGLIBCXX_ENABLE_LIBSTDCXX_TIME 22310d565efSmrg 22410d565efSmrg# Check for tmpnam which is obsolescent in POSIX.1-2008 22510d565efSmrgGLIBCXX_CHECK_TMPNAM 22610d565efSmrg 227*ec02198aSmrg# For pthread_cond_clockwait 228*ec02198aSmrgGLIBCXX_CHECK_PTHREAD_COND_CLOCKWAIT 229*ec02198aSmrg 230*ec02198aSmrg# For pthread_mutex_clocklock 231*ec02198aSmrgGLIBCXX_CHECK_PTHREAD_MUTEX_CLOCKLOCK 232*ec02198aSmrg 233*ec02198aSmrg# For pthread_rwlock_clockrdlock and pthread_rwlock_clockwrlock 234*ec02198aSmrgGLIBCXX_CHECK_PTHREAD_RWLOCK_CLOCKLOCK 235*ec02198aSmrg 23610d565efSmrgAC_LC_MESSAGES 23710d565efSmrg 23810d565efSmrg# For hardware_concurrency 23910d565efSmrgAC_CHECK_HEADERS(sys/sysinfo.h) 24010d565efSmrgGLIBCXX_CHECK_GET_NPROCS 24110d565efSmrgAC_CHECK_HEADERS(unistd.h) 24210d565efSmrgGLIBCXX_CHECK_SC_NPROCESSORS_ONLN 24310d565efSmrgGLIBCXX_CHECK_SC_NPROC_ONLN 24410d565efSmrgGLIBCXX_CHECK_PTHREADS_NUM_PROCESSORS_NP 24510d565efSmrgGLIBCXX_CHECK_SYSCTL_HW_NCPU 24610d565efSmrgGLIBCXX_CHECK_SDT_H 24710d565efSmrg 24810d565efSmrg# Check for available headers. 24910d565efSmrgAC_CHECK_HEADERS([endian.h execinfo.h float.h fp.h ieeefp.h inttypes.h \ 25010d565efSmrglocale.h machine/endian.h machine/param.h nan.h stdint.h stdlib.h string.h \ 25110d565efSmrgstrings.h sys/ipc.h sys/isa_defs.h sys/machine.h sys/param.h \ 25210d565efSmrgsys/resource.h sys/sem.h sys/stat.h sys/time.h sys/types.h unistd.h \ 253c7a68eb7Smrgwchar.h wctype.h linux/types.h]) 254c7a68eb7Smrg 255c7a68eb7SmrgAC_CHECK_HEADERS([linux/random.h], [], [], 256c7a68eb7Smrg[[#ifdef HAVE_LINUX_TYPES_H 257c7a68eb7Smrg# include <linux/types.h> 258c7a68eb7Smrg#endif 259c7a68eb7Smrg]]) 26010d565efSmrg 26110d565efSmrg# Only do link tests if native. Else, hardcode. 26210d565efSmrgif $GLIBCXX_IS_NATIVE; then 26310d565efSmrg 26410d565efSmrg # We can do more elaborate tests that assume a working linker. 26510d565efSmrg CANADIAN=no 26610d565efSmrg 26710d565efSmrg GLIBCXX_CHECK_LINKER_FEATURES 26810d565efSmrg GLIBCXX_CHECK_MATH_SUPPORT 26910d565efSmrg GLIBCXX_CHECK_STDLIB_SUPPORT 27010d565efSmrg 2710fc04c29Smrg # For /dev/random and /dev/urandom for std::random_device. 2720fc04c29Smrg GLIBCXX_CHECK_DEV_RANDOM 27310d565efSmrg 27410d565efSmrg # For TLS support. 27510d565efSmrg GCC_CHECK_TLS 27610d565efSmrg 27710d565efSmrg AC_CHECK_FUNCS(__cxa_thread_atexit_impl __cxa_thread_atexit) 27810d565efSmrg AC_CHECK_FUNCS(aligned_alloc posix_memalign memalign _aligned_malloc) 2790fc04c29Smrg AC_CHECK_FUNCS(_wfopen) 2800fc04c29Smrg 2810fc04c29Smrg # C11 functions for C++17 library 2820fc04c29Smrg AC_CHECK_FUNCS(timespec_get) 2830fc04c29Smrg 2840fc04c29Smrg # For Networking TS. 2850fc04c29Smrg AC_CHECK_FUNCS(sockatmark) 28610d565efSmrg 28710d565efSmrg # For iconv support. 28810d565efSmrg AM_ICONV 28910d565efSmrg 29010d565efSmrgelse 29110d565efSmrg 29210d565efSmrg # This lets us hard-code the functionality we know we'll have in the cross 29310d565efSmrg # target environment. "Let" is a sugar-coated word placed on an especially 29410d565efSmrg # dull and tedious hack, actually. 29510d565efSmrg # 29610d565efSmrg # Here's why GLIBCXX_CHECK_MATH_SUPPORT, and other autoconf macros 29710d565efSmrg # that involve linking, can't be used: 29810d565efSmrg # "cannot open sim-crt0.o" 29910d565efSmrg # "cannot open crt0.o" 30010d565efSmrg # etc. All this is because there currently exists no unified, consistent 30110d565efSmrg # way for top level CC information to be passed down to target directories: 30210d565efSmrg # newlib includes, newlib linking info, libgloss versus newlib crt0.o, etc. 30310d565efSmrg # When all of that is done, all of this hokey, excessive AC_DEFINE junk for 30410d565efSmrg # crosses can be removed. 30510d565efSmrg 30610d565efSmrg # If Canadian cross, then don't pick up tools from the build directory. 30710d565efSmrg # Used only in GLIBCXX_EXPORT_INCLUDES. 30810d565efSmrg if test -n "$with_cross_host" && 30910d565efSmrg test x"$build_alias" != x"$with_cross_host" && 31010d565efSmrg test x"$build" != x"$target"; 31110d565efSmrg then 31210d565efSmrg CANADIAN=yes 31310d565efSmrg else 31410d565efSmrg CANADIAN=no 31510d565efSmrg fi 31610d565efSmrg 31710d565efSmrg # Construct crosses by hand, eliminating bits that need ld... 31810d565efSmrg # GLIBCXX_CHECK_MATH_SUPPORT 31910d565efSmrg 32010d565efSmrg # First, test for "known" system libraries. We may be using newlib even 32110d565efSmrg # on a hosted environment. 32210d565efSmrg if test "x${with_newlib}" = "xyes"; then 32310d565efSmrg os_include_dir="os/newlib" 32410d565efSmrg AC_DEFINE(HAVE_HYPOT) 32510d565efSmrg 32610d565efSmrg # GLIBCXX_CHECK_STDLIB_SUPPORT 32710d565efSmrg AC_DEFINE(HAVE_STRTOF) 32810d565efSmrg 32910d565efSmrg AC_DEFINE(HAVE_ACOSF) 33010d565efSmrg AC_DEFINE(HAVE_ASINF) 33110d565efSmrg AC_DEFINE(HAVE_ATAN2F) 33210d565efSmrg AC_DEFINE(HAVE_ATANF) 33310d565efSmrg AC_DEFINE(HAVE_CEILF) 33410d565efSmrg AC_DEFINE(HAVE_COSF) 33510d565efSmrg AC_DEFINE(HAVE_COSHF) 33610d565efSmrg AC_DEFINE(HAVE_EXPF) 33710d565efSmrg AC_DEFINE(HAVE_FABSF) 33810d565efSmrg AC_DEFINE(HAVE_FLOORF) 33910d565efSmrg AC_DEFINE(HAVE_FMODF) 34010d565efSmrg AC_DEFINE(HAVE_FREXPF) 34110d565efSmrg AC_DEFINE(HAVE_LDEXPF) 34210d565efSmrg AC_DEFINE(HAVE_LOG10F) 34310d565efSmrg AC_DEFINE(HAVE_LOGF) 34410d565efSmrg AC_DEFINE(HAVE_MODFF) 34510d565efSmrg AC_DEFINE(HAVE_POWF) 34610d565efSmrg AC_DEFINE(HAVE_SINF) 34710d565efSmrg AC_DEFINE(HAVE_SINHF) 34810d565efSmrg AC_DEFINE(HAVE_SQRTF) 34910d565efSmrg AC_DEFINE(HAVE_TANF) 35010d565efSmrg AC_DEFINE(HAVE_TANHF) 35110d565efSmrg 35210d565efSmrg AC_DEFINE(HAVE_ICONV) 35310d565efSmrg AC_DEFINE(HAVE_MEMALIGN) 35410d565efSmrg else 35510d565efSmrg GLIBCXX_CROSSCONFIG 35610d565efSmrg fi 35710d565efSmrg 35810d565efSmrg # At some point, we should differentiate between architectures 35910d565efSmrg # like x86, which have long double versions, and alpha/powerpc/etc., 36010d565efSmrg # which don't. For the time being, punt. 36110d565efSmrg if test x"long_double_math_on_this_cpu" = x"yes"; then 36210d565efSmrg AC_DEFINE(HAVE_ACOSL) 36310d565efSmrg AC_DEFINE(HAVE_ASINL) 36410d565efSmrg AC_DEFINE(HAVE_ATAN2L) 36510d565efSmrg AC_DEFINE(HAVE_ATANL) 36610d565efSmrg AC_DEFINE(HAVE_CEILL) 36710d565efSmrg AC_DEFINE(HAVE_COSL) 36810d565efSmrg AC_DEFINE(HAVE_COSHL) 36910d565efSmrg AC_DEFINE(HAVE_EXPL) 37010d565efSmrg AC_DEFINE(HAVE_FABSL) 37110d565efSmrg AC_DEFINE(HAVE_FLOORL) 37210d565efSmrg AC_DEFINE(HAVE_FMODL) 37310d565efSmrg AC_DEFINE(HAVE_FREXPL) 37410d565efSmrg AC_DEFINE(HAVE_LDEXPL) 37510d565efSmrg AC_DEFINE(HAVE_LOG10L) 37610d565efSmrg AC_DEFINE(HAVE_LOGL) 37710d565efSmrg AC_DEFINE(HAVE_MODFL) 37810d565efSmrg AC_DEFINE(HAVE_POWL) 37910d565efSmrg AC_DEFINE(HAVE_SINCOSL) 38010d565efSmrg AC_DEFINE(HAVE_SINL) 38110d565efSmrg AC_DEFINE(HAVE_SINHL) 38210d565efSmrg AC_DEFINE(HAVE_SQRTL) 38310d565efSmrg AC_DEFINE(HAVE_TANL) 38410d565efSmrg AC_DEFINE(HAVE_TANHL) 38510d565efSmrg fi 38610d565efSmrgfi 38710d565efSmrg 38810d565efSmrg# Check for _Unwind_GetIPInfo. 38910d565efSmrgGCC_CHECK_UNWIND_GETIPINFO 39010d565efSmrg 39110d565efSmrgGCC_LINUX_FUTEX([AC_DEFINE(HAVE_LINUX_FUTEX, 1, [Define if futex syscall is available.])]) 39210d565efSmrg 39310d565efSmrgGCC_HEADER_STDINT(include/gstdint.h) 39410d565efSmrg 39510d565efSmrgGLIBCXX_ENABLE_SYMVERS([yes]) 39610d565efSmrgAC_SUBST(libtool_VERSION) 39710d565efSmrg 39810d565efSmrgGLIBCXX_ENABLE_LIBSTDCXX_VISIBILITY([yes]) 39910d565efSmrg 40010d565efSmrgGLIBCXX_ENABLE_LIBSTDCXX_DUAL_ABI([yes]) 40110d565efSmrgGLIBCXX_DEFAULT_ABI 40210d565efSmrg 40310d565efSmrgac_ldbl_compat=no 40410d565efSmrgLONG_DOUBLE_COMPAT_FLAGS="-mlong-double-64" 40510d565efSmrgcase "$target" in 40610d565efSmrg powerpc*-*-linux* | \ 40710d565efSmrg sparc*-*-linux* | \ 40810d565efSmrg s390*-*-linux* | \ 40910d565efSmrg alpha*-*-linux*) 41010d565efSmrg AC_TRY_COMPILE(, [ 41110d565efSmrg#if !defined __LONG_DOUBLE_128__ || (defined(__sparc__) && defined(__arch64__)) 41210d565efSmrg#error no need for long double compatibility 41310d565efSmrg#endif 41410d565efSmrg ], [ac_ldbl_compat=yes], [ac_ldbl_compat=no]) 41510d565efSmrg if test "$ac_ldbl_compat" = yes; then 41610d565efSmrg AC_DEFINE([_GLIBCXX_LONG_DOUBLE_COMPAT],1, 41710d565efSmrg [Define if compatibility should be provided for -mlong-double-64.]) 41810d565efSmrg port_specific_symbol_files="\$(top_srcdir)/config/os/gnu-linux/ldbl-extra.ver" 41910d565efSmrg case "$target" in 42010d565efSmrg powerpc*-*-linux*) 42110d565efSmrg LONG_DOUBLE_COMPAT_FLAGS="$LONG_DOUBLE_COMPAT_FLAGS -mno-gnu-attribute" ;; 42210d565efSmrg esac 42310d565efSmrg fi 42410d565efSmrgesac 42510d565efSmrgAC_SUBST(LONG_DOUBLE_COMPAT_FLAGS) 42610d565efSmrgGLIBCXX_CONDITIONAL(GLIBCXX_LDBL_COMPAT, test $ac_ldbl_compat = yes) 42710d565efSmrg 42810d565efSmrg# Check if assembler supports disabling hardware capability support. 42910d565efSmrgGCC_CHECK_ASSEMBLER_HWCAP 43010d565efSmrg 43110d565efSmrg# Check if assembler supports rdrand opcode. 43210d565efSmrgGLIBCXX_CHECK_X86_RDRAND 433*ec02198aSmrg# Check if assembler supports rdseed opcode. 434*ec02198aSmrgGLIBCXX_CHECK_X86_RDSEED 43510d565efSmrg 43610d565efSmrg# This depends on GLIBCXX_ENABLE_SYMVERS and GLIBCXX_IS_NATIVE. 43710d565efSmrgGLIBCXX_CONFIGURE_TESTSUITE 43810d565efSmrg 43910d565efSmrg# For gthread support. Depends on GLIBCXX_ENABLE_SYMVERS. 44010d565efSmrgGLIBCXX_CHECK_GTHREADS 44110d565efSmrg 44210d565efSmrg# For Filesystem TS. 44310d565efSmrgAC_CHECK_HEADERS([fcntl.h dirent.h sys/statvfs.h utime.h]) 44410d565efSmrgGLIBCXX_ENABLE_FILESYSTEM_TS 44510d565efSmrgGLIBCXX_CHECK_FILESYSTEM_DEPS 44610d565efSmrg 4470fc04c29Smrg# For Networking TS. 4480fc04c29SmrgAC_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]) 4490fc04c29Smrg 45010d565efSmrg# For Transactional Memory TS 45110d565efSmrgGLIBCXX_CHECK_SIZE_T_MANGLING 45210d565efSmrg 45310d565efSmrg# Check which release added std::exception_ptr for the target 45410d565efSmrgGLIBCXX_CHECK_EXCEPTION_PTR_SYMVER 45510d565efSmrg 45610d565efSmrg# Define documentation rules conditionally. 45710d565efSmrg 45810d565efSmrg# See if makeinfo has been installed and is modern enough 45910d565efSmrg# that we can use it. 46010d565efSmrgACX_CHECK_PROG_VER([MAKEINFO], [makeinfo], [--version], 46110d565efSmrg [GNU texinfo.* \([0-9][0-9.]*\)], 46210d565efSmrg [4.[4-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*]) 46310d565efSmrgAM_CONDITIONAL(BUILD_INFO, test $gcc_cv_prog_makeinfo_modern = "yes") 46410d565efSmrg 46510d565efSmrg# Check for doxygen 46610d565efSmrgAC_CHECK_PROG([DOXYGEN], doxygen, yes, no) 46710d565efSmrgAC_CHECK_PROG([DOT], dot, yes, no) 46810d565efSmrg 46910d565efSmrg# Check for docbook 470c7a68eb7SmrgAC_CHECK_PROG([XMLCATALOG], xmlcatalog, yes, no) 47110d565efSmrgAC_CHECK_PROG([XSLTPROC], xsltproc, yes, no) 47210d565efSmrgAC_CHECK_PROG([XMLLINT], xmllint, yes, no) 47310d565efSmrgGLIBCXX_CONFIGURE_DOCBOOK 47410d565efSmrg 47510d565efSmrg# Check for xml/html dependencies. 47610d565efSmrgAM_CONDITIONAL(BUILD_XML, 47710d565efSmrg test $ac_cv_prog_DOXYGEN = "yes" && 47810d565efSmrg test $ac_cv_prog_DOT = "yes" && 47910d565efSmrg test $ac_cv_prog_XSLTPROC = "yes" && 48010d565efSmrg test $ac_cv_prog_XMLLINT = "yes" && 48110d565efSmrg test $glibcxx_stylesheets = "yes") 48210d565efSmrg 48310d565efSmrgAM_CONDITIONAL(BUILD_HTML, 48410d565efSmrg test $ac_cv_prog_DOXYGEN = "yes" && 48510d565efSmrg test $ac_cv_prog_DOT = "yes" && 48610d565efSmrg test $ac_cv_prog_XSLTPROC = "yes" && 48710d565efSmrg test $ac_cv_prog_XMLLINT = "yes" && 48810d565efSmrg test $glibcxx_stylesheets = "yes") 48910d565efSmrg 49010d565efSmrg# Check for man dependencies. 49110d565efSmrgAM_CONDITIONAL(BUILD_MAN, 49210d565efSmrg test $ac_cv_prog_DOXYGEN = "yes" && 49310d565efSmrg test $ac_cv_prog_DOT = "yes") 49410d565efSmrg 49510d565efSmrg# Check for pdf dependencies. 49610d565efSmrgAC_CHECK_PROG([DBLATEX], dblatex, yes, no) 49710d565efSmrgAC_CHECK_PROG([PDFLATEX], pdflatex, yes, no) 49810d565efSmrgAM_CONDITIONAL(BUILD_PDF, 499*ec02198aSmrg test $ac_cv_prog_DOXYGEN = "yes" && 500*ec02198aSmrg test $ac_cv_prog_DOT = "yes" && 501*ec02198aSmrg test $ac_cv_prog_XSLTPROC = "yes" && 502*ec02198aSmrg test $ac_cv_prog_XMLLINT = "yes" && 50310d565efSmrg test $ac_cv_prog_DBLATEX = "yes" && 50410d565efSmrg test $ac_cv_prog_PDFLATEX = "yes") 50510d565efSmrg 50610d565efSmrgcase "$build" in 50710d565efSmrg *-*-darwin* ) glibcxx_include_dir_notparallel=yes ;; 50810d565efSmrg * ) glibcxx_include_dir_notparallel=no ;; 50910d565efSmrgesac 51010d565efSmrgAM_CONDITIONAL(INCLUDE_DIR_NOTPARALLEL, 51110d565efSmrg test $glibcxx_include_dir_notparallel = "yes") 51210d565efSmrg 51310d565efSmrg# Propagate the target-specific source directories through the build chain. 51410d565efSmrgATOMICITY_SRCDIR=config/${atomicity_dir} 51510d565efSmrgATOMIC_WORD_SRCDIR=config/${atomic_word_dir} 51610d565efSmrgATOMIC_FLAGS=${atomic_flags} 51710d565efSmrgCPU_DEFINES_SRCDIR=config/${cpu_defines_dir} 51810d565efSmrgOS_INC_SRCDIR=config/${os_include_dir} 51910d565efSmrgERROR_CONSTANTS_SRCDIR=config/${error_constants_dir} 52010d565efSmrgABI_TWEAKS_SRCDIR=config/${abi_tweaks_dir} 52110d565efSmrgCPU_OPT_EXT_RANDOM=config/${cpu_opt_ext_random} 52210d565efSmrgCPU_OPT_BITS_RANDOM=config/${cpu_opt_bits_random} 52310d565efSmrgAC_SUBST(ATOMICITY_SRCDIR) 52410d565efSmrgAC_SUBST(ATOMIC_WORD_SRCDIR) 52510d565efSmrgAC_SUBST(ATOMIC_FLAGS) 52610d565efSmrgAC_SUBST(CPU_DEFINES_SRCDIR) 52710d565efSmrgAC_SUBST(ABI_TWEAKS_SRCDIR) 52810d565efSmrgAC_SUBST(OS_INC_SRCDIR) 52910d565efSmrgAC_SUBST(ERROR_CONSTANTS_SRCDIR) 53010d565efSmrgAC_SUBST(CPU_OPT_EXT_RANDOM) 53110d565efSmrgAC_SUBST(CPU_OPT_BITS_RANDOM) 53210d565efSmrg 53310d565efSmrg 534c7a68eb7Smrg# Add CET specific flags if Intel CET is enabled. 535c7a68eb7SmrgGCC_CET_FLAGS(CET_FLAGS) 536c7a68eb7SmrgEXTRA_CXX_FLAGS="$EXTRA_CXX_FLAGS $CET_FLAGS" 537c7a68eb7SmrgEXTRA_CFLAGS="$EXTRA_CFLAGS $CET_FLAGS" 538c7a68eb7SmrgAC_SUBST(EXTRA_CFLAGS) 539c7a68eb7SmrgAC_SUBST(EXTRA_CXX_FLAGS) 540c7a68eb7Smrg 54110d565efSmrg# Determine cross-compile flags and AM_CONDITIONALs. 54210d565efSmrg#AC_SUBST(GLIBCXX_IS_NATIVE) 54310d565efSmrg#AM_CONDITIONAL(CANADIAN, test $CANADIAN = yes) 54410d565efSmrgGLIBCXX_EVALUATE_CONDITIONALS 54510d565efSmrg 54610d565efSmrgAC_CACHE_SAVE 54710d565efSmrg 54810d565efSmrgif test ${multilib} = yes; then 54910d565efSmrg multilib_arg="--enable-multilib" 55010d565efSmrgelse 55110d565efSmrg multilib_arg= 55210d565efSmrgfi 55310d565efSmrg 55410d565efSmrg# Export all the install information. 55510d565efSmrgGLIBCXX_EXPORT_INSTALL_INFO 55610d565efSmrg 55710d565efSmrg# Export all the include and flag information to Makefiles. 55810d565efSmrgGLIBCXX_EXPORT_INCLUDES 55910d565efSmrgGLIBCXX_EXPORT_FLAGS 56010d565efSmrg 56110d565efSmrg# Determine what GCC version number to use in filesystem paths. 56210d565efSmrgGCC_BASE_VER 56310d565efSmrg 56410d565efSmrgdnl In autoconf 2.5x, AC_OUTPUT is replaced by four AC_CONFIG_* macros, 56510d565efSmrgdnl which can all be called multiple times as needed, plus one (different) 56610d565efSmrgdnl AC_OUTPUT macro. This one lists the files to be created: 56710d565efSmrgAC_CONFIG_FILES(Makefile) 56810d565efSmrgAC_CONFIG_FILES([scripts/testsuite_flags],[chmod +x scripts/testsuite_flags]) 56910d565efSmrgAC_CONFIG_FILES([scripts/extract_symvers],[chmod +x scripts/extract_symvers]) 57010d565efSmrgAC_CONFIG_FILES([doc/xsl/customization.xsl]) 57110d565efSmrg 57210d565efSmrg# Multilibs need MULTISUBDIR defined correctly in certain makefiles so 57310d565efSmrg# that multilib installs will end up installed in the correct place. 57410d565efSmrg# The testsuite needs it for multilib-aware ABI baseline files. 57510d565efSmrg# To work around this not being passed down from config-ml.in -> 57610d565efSmrg# srcdir/Makefile.am -> srcdir/{src,libsupc++,...}/Makefile.am, manually 57710d565efSmrg# append it here. Only modify Makefiles that have just been created. 57810d565efSmrg# 57910d565efSmrg# Also, get rid of this simulated-VPATH thing that automake does. 58010d565efSmrgAC_CONFIG_FILES(AC_FOREACH([DIR], glibcxx_SUBDIRS, [DIR/Makefile ]), 58110d565efSmrg [cat > vpsed$$ << \_EOF 58210d565efSmrgs!`test -f '$<' || echo '$(srcdir)/'`!! 58310d565efSmrg_EOF 58410d565efSmrg sed -f vpsed$$ $ac_file > tmp$$ 58510d565efSmrg mv tmp$$ $ac_file 58610d565efSmrg rm vpsed$$ 58710d565efSmrg echo 'MULTISUBDIR =' >> $ac_file 58810d565efSmrg ml_norecursion=yes 58910d565efSmrg . ${multi_basedir}/config-ml.in 59010d565efSmrg AS_UNSET([ml_norecursion]) 59110d565efSmrg]) 59210d565efSmrg 59310d565efSmrgAC_CONFIG_COMMANDS([generate-headers], 59410d565efSmrg [(cd include && ${MAKE-make} pch_build= )]) 59510d565efSmrg 59610d565efSmrgdnl And this actually makes things happen: 59710d565efSmrgAC_OUTPUT 598