3439657b02
This adds additional "getentropy" and "arc4random" tokens to std::random_device. The former is supported on Glibc and OpenBSD (and apparently wasm), and the latter is supported on various BSDs. libstdc++-v3/ChangeLog: * acinclude.m4 (GLIBCXX_CHECK_GETENTROPY, GLIBCXX_CHECK_ARC4RANDOM): Define. * configure.ac (GLIBCXX_CHECK_GETENTROPY, GLIBCXX_CHECK_ARC4RANDOM): Use them. * config.h.in: Regenerate. * configure: Regenerate. * src/c++11/random.cc (random_device): Add getentropy and arc4random as sources. * testsuite/26_numerics/random/random_device/cons/token.cc: Check new tokens. * testsuite/26_numerics/random/random_device/entropy.cc: Likewise.
653 lines
21 KiB
Plaintext
653 lines
21 KiB
Plaintext
# Process this file with autoreconf to produce a configure script.
|
|
|
|
AC_INIT(package-unused, version-unused,, libstdc++)
|
|
AC_CONFIG_SRCDIR(src/shared/hashtable-aux.cc)
|
|
AC_CONFIG_HEADER(config.h)
|
|
|
|
# This works around the fact that libtool configuration may change LD
|
|
# for this particular configuration, but some shells, instead of
|
|
# keeping the changes in LD private, export them just because LD is
|
|
# exported. Only used at the end of this file.
|
|
### am handles this now? ORIGINAL_LD_FOR_MULTILIBS=$LD
|
|
|
|
# Find the rest of the source tree framework.
|
|
AM_ENABLE_MULTILIB(, ..)
|
|
|
|
# Gets build, host, target, *_vendor, *_cpu, *_os, etc.
|
|
#
|
|
# You will slowly go insane if you do not grok the following fact: when
|
|
# building v3 as part of the compiler, the top-level /target/ becomes the
|
|
# library's /host/. configure then causes --target to default to --host,
|
|
# exactly like any other package using autoconf. Therefore, 'target' and
|
|
# 'host' will always be the same. This makes sense both for native and
|
|
# cross compilers, just think about it for a little while. :-)
|
|
#
|
|
# Also, if v3 is being configured as part of a cross compiler, the top-level
|
|
# configure script will pass the "real" host as $with_cross_host.
|
|
#
|
|
# Do not delete or change the following two lines. For why, see
|
|
# http://gcc.gnu.org/ml/libstdc++/2003-07/msg00451.html
|
|
AC_CANONICAL_SYSTEM
|
|
target_alias=${target_alias-$host_alias}
|
|
|
|
# Handy for debugging:
|
|
#AC_MSG_NOTICE($build / $host / $target / $host_alias / $target_alias); sleep 5
|
|
|
|
if test "$build" != "$host"; then
|
|
# We are being configured with some form of cross compiler.
|
|
GLIBCXX_IS_NATIVE=false
|
|
case "$host","$target" in
|
|
# Darwin crosses can use the host system's libraries and headers,
|
|
# because of the fat library support. Of course, it must be the
|
|
# same version of Darwin on both sides. Allow the user to
|
|
# just say --target=foo-darwin without a version number to mean
|
|
# "the version on this system".
|
|
*-*-darwin*,*-*-darwin*)
|
|
hostos=`echo $host | sed 's/.*-darwin/darwin/'`
|
|
targetos=`echo $target | sed 's/.*-darwin/darwin/'`
|
|
if test $hostos = $targetos -o $targetos = darwin ; then
|
|
GLIBCXX_IS_NATIVE=true
|
|
fi
|
|
;;
|
|
|
|
*)
|
|
GCC_NO_EXECUTABLES
|
|
;;
|
|
esac
|
|
else
|
|
GLIBCXX_IS_NATIVE=true
|
|
fi
|
|
|
|
# Sets up automake. Must come after AC_CANONICAL_SYSTEM. Each of the
|
|
# following is magically included in AUTOMAKE_OPTIONS in each Makefile.am.
|
|
# 1.x: minimum required version
|
|
# no-define: PACKAGE and VERSION will not be #define'd in config.h (a bunch
|
|
# of other PACKAGE_* variables will, however, and there's nothing
|
|
# we can do about that; they come from AC_INIT).
|
|
# foreign: we don't follow the normal rules for GNU packages (no COPYING
|
|
# file in the top srcdir, etc, etc), so stop complaining.
|
|
# no-dependencies: turns off auto dependency generation (just for now)
|
|
# no-dist: we don't want 'dist' and related rules.
|
|
# -Wall: turns on all automake warnings...
|
|
# -Wno-portability: ...except this one, since GNU make is now required.
|
|
AM_INIT_AUTOMAKE([1.9.3 no-define foreign no-dependencies no-dist -Wall -Wno-portability -Wno-override])
|
|
AH_TEMPLATE(PACKAGE, [Name of package])
|
|
AH_TEMPLATE(VERSION, [Version number of package])
|
|
|
|
# -fno-builtin must be present here so that a non-conflicting form of
|
|
# std::exit can be guessed by AC_PROG_CXX, and used in later tests.
|
|
|
|
save_CXXFLAGS="$CXXFLAGS"
|
|
CXXFLAGS="$CXXFLAGS -fno-builtin"
|
|
AC_PROG_CC
|
|
AC_PROG_CXX
|
|
CXXFLAGS="$save_CXXFLAGS"
|
|
|
|
AC_SYS_LARGEFILE
|
|
|
|
# Runs configure.host, and assorted other critical bits. Sets
|
|
# up critical shell variables.
|
|
GLIBCXX_CONFIGURE
|
|
|
|
# Libtool setup.
|
|
if test "x${with_newlib}" != "xyes" && test "x${with_avrlibc}" != "xyes"; then
|
|
AC_LIBTOOL_DLOPEN
|
|
fi
|
|
AM_PROG_LIBTOOL
|
|
ACX_LT_HOST_FLAGS
|
|
AC_SUBST(enable_shared)
|
|
AC_SUBST(enable_static)
|
|
|
|
if test "$enable_vtable_verify" = yes; then
|
|
predep_objects_CXX="${predep_objects_CXX} ${glibcxx_builddir}/../libgcc/vtv_start.o"
|
|
postdep_objects_CXX="${postdep_objects_CXX} ${glibcxx_builddir}/../libgcc/vtv_end.o"
|
|
fi
|
|
|
|
|
|
# libtool variables for C++ shared and position-independent compiles.
|
|
#
|
|
# Use glibcxx_lt_pic_flag to designate the automake variable
|
|
# used to encapsulate the default libtool approach to creating objects
|
|
# with position-independent code. Default: -prefer-pic.
|
|
#
|
|
# Use glibcxx_compiler_shared_flag to designate a compile-time flags for
|
|
# creating shared objects. Default: -D_GLIBCXX_SHARED.
|
|
#
|
|
# Use glibcxx_compiler_pic_flag to designate a compile-time flags for
|
|
# creating position-independent objects. This varies with the target
|
|
# hardware and operating system, but is often: -DPIC -fPIC.
|
|
if test "$enable_shared" = yes; then
|
|
glibcxx_lt_pic_flag="-prefer-pic"
|
|
glibcxx_compiler_pic_flag="$lt_prog_compiler_pic_CXX"
|
|
glibcxx_compiler_shared_flag="-D_GLIBCXX_SHARED"
|
|
|
|
else
|
|
glibcxx_lt_pic_flag=
|
|
glibcxx_compiler_pic_flag=
|
|
glibcxx_compiler_shared_flag=
|
|
fi
|
|
AC_SUBST(glibcxx_lt_pic_flag)
|
|
AC_SUBST(glibcxx_compiler_pic_flag)
|
|
AC_SUBST(glibcxx_compiler_shared_flag)
|
|
|
|
# Override the libtool's pic_flag and pic_mode.
|
|
# Do this step after AM_PROG_LIBTOOL, but before AC_OUTPUT.
|
|
# NB: this impacts --with-pic and --without-pic.
|
|
lt_prog_compiler_pic_CXX="$glibcxx_compiler_pic_flag $glibcxx_compiler_shared_flag"
|
|
pic_mode='default'
|
|
|
|
# Eliminate -lstdc++ addition to postdeps for cross compiles.
|
|
postdeps_CXX=`echo " $postdeps_CXX " | sed 's, -lstdc++ ,,g'`
|
|
|
|
# Possibly disable most of the library.
|
|
## TODO: Consider skipping unncessary tests altogether in this case, rather
|
|
## than just ignoring the results. Faster /and/ more correct, win win.
|
|
GLIBCXX_ENABLE_HOSTED
|
|
|
|
# Enable descriptive messages to standard output on termination.
|
|
GLIBCXX_ENABLE_VERBOSE
|
|
|
|
# Enable compiler support that doesn't require linking.
|
|
GLIBCXX_ENABLE_PCH($is_hosted)
|
|
GLIBCXX_ENABLE_THREADS
|
|
GLIBCXX_ENABLE_ATOMIC_BUILTINS
|
|
GLIBCXX_ENABLE_LOCK_POLICY
|
|
GLIBCXX_ENABLE_DECIMAL_FLOAT
|
|
GLIBCXX_ENABLE_FLOAT128
|
|
if test "$enable_float128" = yes; then
|
|
port_specific_symbol_files="$port_specific_symbol_files \$(top_srcdir)/config/abi/pre/float128.ver"
|
|
fi
|
|
|
|
# Checks for compiler support that doesn't require linking.
|
|
GLIBCXX_CHECK_COMPILER_FEATURES
|
|
|
|
# Enable all the variable C++ runtime options that don't require linking.
|
|
GLIBCXX_ENABLE_CSTDIO
|
|
GLIBCXX_ENABLE_CLOCALE
|
|
GLIBCXX_ENABLE_ALLOCATOR
|
|
GLIBCXX_ENABLE_CHEADERS($c_model) dnl c_model from configure.host
|
|
GLIBCXX_ENABLE_LONG_LONG([yes])
|
|
GLIBCXX_ENABLE_WCHAR_T([yes])
|
|
GLIBCXX_ENABLE_C99([yes])
|
|
GLIBCXX_ENABLE_CONCEPT_CHECKS([no])
|
|
GLIBCXX_ENABLE_DEBUG_FLAGS(["-gdwarf-4 -g3 -O0 -D_GLIBCXX_ASSERTIONS"])
|
|
GLIBCXX_ENABLE_DEBUG([no])
|
|
GLIBCXX_ENABLE_PARALLEL([yes])
|
|
GLIBCXX_ENABLE_CXX_FLAGS
|
|
GLIBCXX_ENABLE_FULLY_DYNAMIC_STRING([no])
|
|
GLIBCXX_ENABLE_EXTERN_TEMPLATE([yes])
|
|
GLIBCXX_ENABLE_PYTHON
|
|
GLIBCXX_ENABLE_WERROR([no])
|
|
GLIBCXX_ENABLE_VTABLE_VERIFY([no])
|
|
|
|
# Checks for operating systems support that doesn't require linking.
|
|
GLIBCXX_CHECK_STDIO_PROTO
|
|
GLIBCXX_CHECK_MATH11_PROTO
|
|
GLIBCXX_CHECK_UCHAR_H
|
|
|
|
# For LFS support.
|
|
GLIBCXX_CHECK_LFS
|
|
|
|
# For showmanyc_helper().
|
|
AC_CHECK_HEADERS(sys/ioctl.h sys/filio.h)
|
|
GLIBCXX_CHECK_POLL
|
|
GLIBCXX_CHECK_S_ISREG_OR_S_IFREG
|
|
|
|
# For xsputn_2().
|
|
AC_CHECK_HEADERS(sys/uio.h)
|
|
GLIBCXX_CHECK_WRITEV
|
|
|
|
# Check for fenv.h and complex.h before GLIBCXX_CHECK_C99_TR1
|
|
# so that the check is done with the C compiler (not C++).
|
|
# Checking with C++ can break a canadian cross build if either
|
|
# file does not exist in C but does in C++.
|
|
AC_CHECK_HEADERS(fenv.h complex.h)
|
|
|
|
# For C99 support to TR1.
|
|
GLIBCXX_CHECK_C99_TR1
|
|
|
|
# For the EOF, SEEK_CUR, and SEEK_END integer constants.
|
|
GLIBCXX_COMPUTE_STDIO_INTEGER_CONSTANTS
|
|
|
|
# For gettimeofday support.
|
|
GLIBCXX_CHECK_GETTIMEOFDAY
|
|
|
|
# For clock_gettime, nanosleep and sched_yield support.
|
|
GLIBCXX_ENABLE_LIBSTDCXX_TIME
|
|
|
|
# Check for tmpnam which is obsolescent in POSIX.1-2008
|
|
GLIBCXX_CHECK_TMPNAM
|
|
|
|
# For pthread_cond_clockwait
|
|
GLIBCXX_CHECK_PTHREAD_COND_CLOCKWAIT
|
|
|
|
# For pthread_mutex_clocklock
|
|
GLIBCXX_CHECK_PTHREAD_MUTEX_CLOCKLOCK
|
|
|
|
# For pthread_rwlock_clockrdlock and pthread_rwlock_clockwrlock
|
|
GLIBCXX_CHECK_PTHREAD_RWLOCK_CLOCKLOCK
|
|
|
|
AC_LC_MESSAGES
|
|
|
|
# For hardware_concurrency
|
|
AC_CHECK_HEADERS(sys/sysinfo.h)
|
|
GLIBCXX_CHECK_GET_NPROCS
|
|
AC_CHECK_HEADERS(unistd.h)
|
|
GLIBCXX_CHECK_SC_NPROCESSORS_ONLN
|
|
GLIBCXX_CHECK_SC_NPROC_ONLN
|
|
GLIBCXX_CHECK_PTHREADS_NUM_PROCESSORS_NP
|
|
GLIBCXX_CHECK_SYSCTL_HW_NCPU
|
|
GLIBCXX_CHECK_SDT_H
|
|
|
|
# Check for available headers.
|
|
AC_CHECK_HEADERS([endian.h execinfo.h float.h fp.h ieeefp.h inttypes.h \
|
|
locale.h machine/endian.h machine/param.h nan.h stdint.h stdlib.h string.h \
|
|
strings.h sys/ipc.h sys/isa_defs.h sys/machine.h sys/param.h \
|
|
sys/resource.h sys/sem.h sys/stat.h sys/time.h sys/types.h unistd.h \
|
|
wchar.h wctype.h linux/types.h])
|
|
|
|
AC_CHECK_HEADERS([linux/random.h], [], [],
|
|
[[#ifdef HAVE_LINUX_TYPES_H
|
|
# include <linux/types.h>
|
|
#endif
|
|
]])
|
|
|
|
AC_CHECK_HEADERS([xlocale.h])
|
|
|
|
# Only do link tests if native. Else, hardcode.
|
|
if $GLIBCXX_IS_NATIVE; then
|
|
|
|
# We can do more elaborate tests that assume a working linker.
|
|
CANADIAN=no
|
|
|
|
GLIBCXX_CHECK_LINKER_FEATURES
|
|
GLIBCXX_CHECK_MATH_SUPPORT
|
|
GLIBCXX_CHECK_STDLIB_SUPPORT
|
|
|
|
# For /dev/random and /dev/urandom for std::random_device.
|
|
GLIBCXX_CHECK_DEV_RANDOM
|
|
|
|
# For TLS support.
|
|
GCC_CHECK_TLS
|
|
|
|
AC_CHECK_FUNCS(__cxa_thread_atexit_impl __cxa_thread_atexit)
|
|
AC_CHECK_FUNCS(aligned_alloc posix_memalign memalign _aligned_malloc)
|
|
AC_CHECK_FUNCS(_wfopen)
|
|
AC_CHECK_FUNCS(secure_getenv)
|
|
|
|
# C11 functions for C++17 library
|
|
AC_CHECK_FUNCS(timespec_get)
|
|
|
|
# For Networking TS.
|
|
AC_CHECK_FUNCS(sockatmark)
|
|
|
|
# Non-standard functions used by C++17 std::from_chars
|
|
AC_CHECK_FUNCS(uselocale)
|
|
|
|
# For iconv support.
|
|
AM_ICONV
|
|
|
|
else
|
|
|
|
# This lets us hard-code the functionality we know we'll have in the cross
|
|
# target environment. "Let" is a sugar-coated word placed on an especially
|
|
# dull and tedious hack, actually.
|
|
#
|
|
# Here's why GLIBCXX_CHECK_MATH_SUPPORT, and other autoconf macros
|
|
# that involve linking, can't be used:
|
|
# "cannot open sim-crt0.o"
|
|
# "cannot open crt0.o"
|
|
# etc. All this is because there currently exists no unified, consistent
|
|
# way for top level CC information to be passed down to target directories:
|
|
# newlib includes, newlib linking info, libgloss versus newlib crt0.o, etc.
|
|
# When all of that is done, all of this hokey, excessive AC_DEFINE junk for
|
|
# crosses can be removed.
|
|
|
|
# If Canadian cross, then don't pick up tools from the build directory.
|
|
# Used only in GLIBCXX_EXPORT_INCLUDES.
|
|
if test -n "$with_cross_host" &&
|
|
test x"$build_alias" != x"$with_cross_host" &&
|
|
test x"$build" != x"$target";
|
|
then
|
|
CANADIAN=yes
|
|
else
|
|
CANADIAN=no
|
|
fi
|
|
|
|
# Construct crosses by hand, eliminating bits that need ld...
|
|
# GLIBCXX_CHECK_MATH_SUPPORT
|
|
|
|
# First, test for "known" system libraries. We may be using newlib even
|
|
# on a hosted environment.
|
|
if test "x${with_newlib}" = "xyes"; then
|
|
os_include_dir="os/newlib"
|
|
AC_DEFINE(HAVE_HYPOT)
|
|
|
|
# GLIBCXX_CHECK_STDLIB_SUPPORT
|
|
AC_DEFINE(HAVE_STRTOF)
|
|
|
|
AC_DEFINE(HAVE_ACOSF)
|
|
AC_DEFINE(HAVE_ASINF)
|
|
AC_DEFINE(HAVE_ATAN2F)
|
|
AC_DEFINE(HAVE_ATANF)
|
|
AC_DEFINE(HAVE_CEILF)
|
|
AC_DEFINE(HAVE_COSF)
|
|
AC_DEFINE(HAVE_COSHF)
|
|
AC_DEFINE(HAVE_EXPF)
|
|
AC_DEFINE(HAVE_FABSF)
|
|
AC_DEFINE(HAVE_FLOORF)
|
|
AC_DEFINE(HAVE_FMODF)
|
|
AC_DEFINE(HAVE_FREXPF)
|
|
AC_DEFINE(HAVE_LDEXPF)
|
|
AC_DEFINE(HAVE_LOG10F)
|
|
AC_DEFINE(HAVE_LOGF)
|
|
AC_DEFINE(HAVE_MODFF)
|
|
AC_DEFINE(HAVE_POWF)
|
|
AC_DEFINE(HAVE_SINF)
|
|
AC_DEFINE(HAVE_SINHF)
|
|
AC_DEFINE(HAVE_SQRTF)
|
|
AC_DEFINE(HAVE_TANF)
|
|
AC_DEFINE(HAVE_TANHF)
|
|
|
|
AC_DEFINE(HAVE_ICONV)
|
|
AC_DEFINE(HAVE_MEMALIGN)
|
|
else
|
|
GLIBCXX_CROSSCONFIG
|
|
fi
|
|
|
|
# At some point, we should differentiate between architectures
|
|
# like x86, which have long double versions, and alpha/powerpc/etc.,
|
|
# which don't. For the time being, punt.
|
|
if test x"long_double_math_on_this_cpu" = x"yes"; then
|
|
AC_DEFINE(HAVE_ACOSL)
|
|
AC_DEFINE(HAVE_ASINL)
|
|
AC_DEFINE(HAVE_ATAN2L)
|
|
AC_DEFINE(HAVE_ATANL)
|
|
AC_DEFINE(HAVE_CEILL)
|
|
AC_DEFINE(HAVE_COSL)
|
|
AC_DEFINE(HAVE_COSHL)
|
|
AC_DEFINE(HAVE_EXPL)
|
|
AC_DEFINE(HAVE_FABSL)
|
|
AC_DEFINE(HAVE_FLOORL)
|
|
AC_DEFINE(HAVE_FMODL)
|
|
AC_DEFINE(HAVE_FREXPL)
|
|
AC_DEFINE(HAVE_LDEXPL)
|
|
AC_DEFINE(HAVE_LOG10L)
|
|
AC_DEFINE(HAVE_LOGL)
|
|
AC_DEFINE(HAVE_MODFL)
|
|
AC_DEFINE(HAVE_POWL)
|
|
AC_DEFINE(HAVE_SINCOSL)
|
|
AC_DEFINE(HAVE_SINL)
|
|
AC_DEFINE(HAVE_SINHL)
|
|
AC_DEFINE(HAVE_SQRTL)
|
|
AC_DEFINE(HAVE_TANL)
|
|
AC_DEFINE(HAVE_TANHL)
|
|
fi
|
|
fi
|
|
|
|
# Check for _Unwind_GetIPInfo.
|
|
GCC_CHECK_UNWIND_GETIPINFO
|
|
|
|
GCC_LINUX_FUTEX([AC_DEFINE(HAVE_LINUX_FUTEX, 1, [Define if futex syscall is available.])])
|
|
|
|
GCC_HEADER_STDINT(include/gstdint.h)
|
|
|
|
GLIBCXX_ENABLE_SYMVERS([yes])
|
|
AC_SUBST(libtool_VERSION)
|
|
|
|
GLIBCXX_ENABLE_LIBSTDCXX_VISIBILITY([yes])
|
|
|
|
GLIBCXX_ENABLE_LIBSTDCXX_DUAL_ABI([yes])
|
|
GLIBCXX_DEFAULT_ABI
|
|
|
|
ac_ldbl_compat=no
|
|
ac_ldbl_alt128_compat=no
|
|
ac_ldbl_ieee128_default=no
|
|
LONG_DOUBLE_COMPAT_FLAGS="-mlong-double-64"
|
|
LONG_DOUBLE_128_FLAGS=
|
|
LONG_DOUBLE_ALT128_COMPAT_FLAGS=
|
|
case "$target" in
|
|
powerpc*-*-linux* | \
|
|
sparc*-*-linux* | \
|
|
s390*-*-linux* | \
|
|
alpha*-*-linux*)
|
|
AC_TRY_COMPILE(, [
|
|
#if !defined __LONG_DOUBLE_128__ || (defined(__sparc__) && defined(__arch64__))
|
|
#error no need for long double compatibility
|
|
#endif
|
|
], [ac_ldbl_compat=yes], [ac_ldbl_compat=no])
|
|
if test "$ac_ldbl_compat" = yes; then
|
|
AC_DEFINE([_GLIBCXX_LONG_DOUBLE_COMPAT],1,
|
|
[Define if compatibility should be provided for -mlong-double-64.])
|
|
port_specific_symbol_files="\$(top_srcdir)/config/os/gnu-linux/ldbl-extra.ver"
|
|
case "$target" in
|
|
powerpc*-*-linux*)
|
|
LONG_DOUBLE_COMPAT_FLAGS="$LONG_DOUBLE_COMPAT_FLAGS -mno-gnu-attribute"
|
|
# Check for IEEE128 support in libm:
|
|
AC_CHECK_LIB(m, __frexpieee128,
|
|
[ac_ldbl_ieee128_in_libc=yes],
|
|
[ac_ldbl_ieee128_in_libc=no])
|
|
if test $ac_ldbl_ieee128_in_libc = yes; then
|
|
# Determine which long double format is the compiler's default:
|
|
AC_TRY_COMPILE(, [
|
|
#ifndef __LONG_DOUBLE_IEEE128__
|
|
#error compiler defaults to ibm128
|
|
#endif
|
|
], [ac_ldbl_ieee128_default=yes], [ac_ldbl_ieee128_default=no])
|
|
# Library objects should use default long double format.
|
|
if test "$ac_ldbl_ieee128_default" = yes; then
|
|
LONG_DOUBLE_128_FLAGS="-mno-gnu-attribute"
|
|
# Except for the ones that explicitly use these flags:
|
|
LONG_DOUBLE_ALT128_COMPAT_FLAGS="-mabi=ibmlongdouble -mno-gnu-attribute -Wno-psabi"
|
|
else
|
|
LONG_DOUBLE_128_FLAGS="-mno-gnu-attribute"
|
|
LONG_DOUBLE_ALT128_COMPAT_FLAGS="-mabi=ieeelongdouble -mno-gnu-attribute -Wno-psabi"
|
|
fi
|
|
AC_DEFINE([_GLIBCXX_LONG_DOUBLE_ALT128_COMPAT],1,
|
|
[Define if compatibility should be provided for alternative 128-bit long double formats.])
|
|
port_specific_symbol_files="$port_specific_symbol_files \$(top_srcdir)/config/os/gnu-linux/ldbl-ieee128-extra.ver"
|
|
ac_ldbl_alt128_compat=yes
|
|
else
|
|
ac_ldbl_alt128_compat=no
|
|
fi
|
|
;;
|
|
esac
|
|
fi
|
|
esac
|
|
AC_SUBST(LONG_DOUBLE_COMPAT_FLAGS)
|
|
AC_SUBST(LONG_DOUBLE_128_FLAGS)
|
|
AC_SUBST(LONG_DOUBLE_ALT128_COMPAT_FLAGS)
|
|
GLIBCXX_CONDITIONAL(GLIBCXX_LDBL_COMPAT, test $ac_ldbl_compat = yes)
|
|
GLIBCXX_CONDITIONAL(GLIBCXX_LDBL_ALT128_COMPAT, test $ac_ldbl_alt128_compat = yes)
|
|
|
|
# Check if assembler supports disabling hardware capability support.
|
|
GCC_CHECK_ASSEMBLER_HWCAP
|
|
|
|
# Check if assembler supports rdrand opcode.
|
|
GLIBCXX_CHECK_X86_RDRAND
|
|
# Check if assembler supports rdseed opcode.
|
|
GLIBCXX_CHECK_X86_RDSEED
|
|
|
|
# Check for other random number APIs
|
|
GLIBCXX_CHECK_GETENTROPY
|
|
GLIBCXX_CHECK_ARC4RANDOM
|
|
|
|
# This depends on GLIBCXX_ENABLE_SYMVERS and GLIBCXX_IS_NATIVE.
|
|
GLIBCXX_CONFIGURE_TESTSUITE
|
|
|
|
# For gthread support. Depends on GLIBCXX_ENABLE_SYMVERS.
|
|
GLIBCXX_CHECK_GTHREADS
|
|
|
|
# For Filesystem TS.
|
|
AC_CHECK_HEADERS([fcntl.h dirent.h sys/statvfs.h utime.h])
|
|
GLIBCXX_ENABLE_FILESYSTEM_TS
|
|
GLIBCXX_CHECK_FILESYSTEM_DEPS
|
|
|
|
# For Networking TS.
|
|
AC_CHECK_HEADERS([fcntl.h sys/ioctl.h sys/socket.h sys/uio.h poll.h netdb.h arpa/inet.h netinet/in.h netinet/tcp.h])
|
|
AC_CHECK_DECL(F_GETFL,,,[#include <fcntl.h>])
|
|
AC_CHECK_DECL(F_SETFL,,,[#include <fcntl.h>])
|
|
if test "$ac_cv_have_decl_F_GETFL$ac_cv_have_decl_F_SETFL" = yesyes ; then
|
|
AC_CHECK_DECL(O_NONBLOCK,,,[#include <fcntl.h>])
|
|
fi
|
|
|
|
# For Transactional Memory TS
|
|
GLIBCXX_CHECK_SIZE_T_MANGLING
|
|
|
|
# Check which release added std::exception_ptr for the target
|
|
GLIBCXX_CHECK_EXCEPTION_PTR_SYMVER
|
|
|
|
# Define documentation rules conditionally.
|
|
|
|
# See if makeinfo has been installed and is modern enough
|
|
# that we can use it.
|
|
ACX_CHECK_PROG_VER([MAKEINFO], [makeinfo], [--version],
|
|
[GNU texinfo.* \([0-9][0-9.]*\)],
|
|
[4.[4-9]*|4.[1-9][0-9]*|[5-9]*|[1-9][0-9]*])
|
|
AM_CONDITIONAL(BUILD_INFO, test $gcc_cv_prog_makeinfo_modern = "yes")
|
|
|
|
# Check for doxygen
|
|
AC_CHECK_PROG([DOXYGEN], doxygen, yes, no)
|
|
AC_CHECK_PROG([DOT], dot, yes, no)
|
|
|
|
# Check for docbook
|
|
AC_CHECK_PROG([XMLCATALOG], xmlcatalog, yes, no)
|
|
AC_CHECK_PROG([XSLTPROC], xsltproc, yes, no)
|
|
AC_CHECK_PROG([XMLLINT], xmllint, yes, no)
|
|
GLIBCXX_CONFIGURE_DOCBOOK
|
|
|
|
# Check for xml/html dependencies.
|
|
AM_CONDITIONAL(BUILD_XML,
|
|
test $ac_cv_prog_DOXYGEN = "yes" &&
|
|
test $ac_cv_prog_DOT = "yes" &&
|
|
test $ac_cv_prog_XSLTPROC = "yes" &&
|
|
test $ac_cv_prog_XMLLINT = "yes" &&
|
|
test $glibcxx_stylesheets = "yes")
|
|
|
|
AM_CONDITIONAL(BUILD_HTML,
|
|
test $ac_cv_prog_DOXYGEN = "yes" &&
|
|
test $ac_cv_prog_DOT = "yes" &&
|
|
test $ac_cv_prog_XSLTPROC = "yes" &&
|
|
test $ac_cv_prog_XMLLINT = "yes" &&
|
|
test $glibcxx_stylesheets = "yes")
|
|
|
|
# Check for man dependencies.
|
|
AM_CONDITIONAL(BUILD_MAN,
|
|
test $ac_cv_prog_DOXYGEN = "yes" &&
|
|
test $ac_cv_prog_DOT = "yes")
|
|
|
|
# Check for pdf dependencies.
|
|
AC_CHECK_PROG([DBLATEX], dblatex, yes, no)
|
|
AC_CHECK_PROG([PDFLATEX], pdflatex, yes, no)
|
|
AM_CONDITIONAL(BUILD_PDF,
|
|
test $ac_cv_prog_DOXYGEN = "yes" &&
|
|
test $ac_cv_prog_DOT = "yes" &&
|
|
test $ac_cv_prog_XSLTPROC = "yes" &&
|
|
test $ac_cv_prog_XMLLINT = "yes" &&
|
|
test $ac_cv_prog_DBLATEX = "yes" &&
|
|
test $ac_cv_prog_PDFLATEX = "yes")
|
|
|
|
case "$build" in
|
|
*-*-darwin* ) glibcxx_include_dir_notparallel=yes ;;
|
|
* ) glibcxx_include_dir_notparallel=no ;;
|
|
esac
|
|
AM_CONDITIONAL(INCLUDE_DIR_NOTPARALLEL,
|
|
test $glibcxx_include_dir_notparallel = "yes")
|
|
|
|
# Propagate the target-specific source directories through the build chain.
|
|
ATOMICITY_SRCDIR=config/${atomicity_dir}
|
|
ATOMIC_WORD_SRCDIR=config/${atomic_word_dir}
|
|
ATOMIC_FLAGS=${atomic_flags}
|
|
CPU_DEFINES_SRCDIR=config/${cpu_defines_dir}
|
|
OS_INC_SRCDIR=config/${os_include_dir}
|
|
ERROR_CONSTANTS_SRCDIR=config/${error_constants_dir}
|
|
ABI_TWEAKS_SRCDIR=config/${abi_tweaks_dir}
|
|
CPU_OPT_EXT_RANDOM=config/${cpu_opt_ext_random}
|
|
CPU_OPT_BITS_RANDOM=config/${cpu_opt_bits_random}
|
|
AC_SUBST(ATOMICITY_SRCDIR)
|
|
AC_SUBST(ATOMIC_WORD_SRCDIR)
|
|
AC_SUBST(ATOMIC_FLAGS)
|
|
AC_SUBST(CPU_DEFINES_SRCDIR)
|
|
AC_SUBST(ABI_TWEAKS_SRCDIR)
|
|
AC_SUBST(OS_INC_SRCDIR)
|
|
AC_SUBST(ERROR_CONSTANTS_SRCDIR)
|
|
AC_SUBST(CPU_OPT_EXT_RANDOM)
|
|
AC_SUBST(CPU_OPT_BITS_RANDOM)
|
|
|
|
# Conditionalize the makefile for this target machine.
|
|
tmake_file_=
|
|
for f in ${tmake_file}
|
|
do
|
|
if test -f ${srcdir}/config/$f
|
|
then
|
|
tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
|
|
fi
|
|
done
|
|
tmake_file="${tmake_file_}"
|
|
AC_SUBST(tmake_file)
|
|
|
|
# Add CET specific flags if Intel CET is enabled.
|
|
GCC_CET_FLAGS(CET_FLAGS)
|
|
EXTRA_CXX_FLAGS="$EXTRA_CXX_FLAGS $CET_FLAGS"
|
|
EXTRA_CFLAGS="$EXTRA_CFLAGS $CET_FLAGS"
|
|
AC_SUBST(EXTRA_CFLAGS)
|
|
AC_SUBST(EXTRA_CXX_FLAGS)
|
|
|
|
# Determine cross-compile flags and AM_CONDITIONALs.
|
|
#AC_SUBST(GLIBCXX_IS_NATIVE)
|
|
#AM_CONDITIONAL(CANADIAN, test $CANADIAN = yes)
|
|
GLIBCXX_EVALUATE_CONDITIONALS
|
|
|
|
AC_CACHE_SAVE
|
|
|
|
if test ${multilib} = yes; then
|
|
multilib_arg="--enable-multilib"
|
|
else
|
|
multilib_arg=
|
|
fi
|
|
|
|
# Export all the install information.
|
|
GLIBCXX_EXPORT_INSTALL_INFO
|
|
|
|
# Export all the include and flag information to Makefiles.
|
|
GLIBCXX_EXPORT_INCLUDES
|
|
GLIBCXX_EXPORT_FLAGS
|
|
|
|
# Determine what GCC version number to use in filesystem paths.
|
|
GCC_BASE_VER
|
|
|
|
dnl In autoconf 2.5x, AC_OUTPUT is replaced by four AC_CONFIG_* macros,
|
|
dnl which can all be called multiple times as needed, plus one (different)
|
|
dnl AC_OUTPUT macro. This one lists the files to be created:
|
|
AC_CONFIG_FILES(Makefile)
|
|
AC_CONFIG_FILES([scripts/testsuite_flags],[chmod +x scripts/testsuite_flags])
|
|
AC_CONFIG_FILES([scripts/extract_symvers],[chmod +x scripts/extract_symvers])
|
|
AC_CONFIG_FILES([doc/xsl/customization.xsl])
|
|
|
|
# Multilibs need MULTISUBDIR defined correctly in certain makefiles so
|
|
# that multilib installs will end up installed in the correct place.
|
|
# The testsuite needs it for multilib-aware ABI baseline files.
|
|
# To work around this not being passed down from config-ml.in ->
|
|
# srcdir/Makefile.am -> srcdir/{src,libsupc++,...}/Makefile.am, manually
|
|
# append it here. Only modify Makefiles that have just been created.
|
|
#
|
|
# Also, get rid of this simulated-VPATH thing that automake does.
|
|
AC_CONFIG_FILES(AC_FOREACH([DIR], glibcxx_SUBDIRS, [DIR/Makefile ]),
|
|
[cat > vpsed$$ << \_EOF
|
|
s!`test -f '$<' || echo '$(srcdir)/'`!!
|
|
_EOF
|
|
sed -f vpsed$$ $ac_file > tmp$$
|
|
mv tmp$$ $ac_file
|
|
rm vpsed$$
|
|
echo 'MULTISUBDIR =' >> $ac_file
|
|
ml_norecursion=yes
|
|
. ${multi_basedir}/config-ml.in
|
|
AS_UNSET([ml_norecursion])
|
|
])
|
|
|
|
AC_CONFIG_COMMANDS([generate-headers],
|
|
[(cd include && ${MAKE-make} pch_build= )])
|
|
|
|
dnl And this actually makes things happen:
|
|
AC_OUTPUT
|