# configure.ac for GCC
# Process this file with autoconf to generate a configuration script.
-# Copyright (C) 1997-2019 Free Software Foundation, Inc.
+# Copyright (C) 1997-2020 Free Software Foundation, Inc.
#This file is part of GCC.
[wf_opt=-Wno-format],[wf_opt=])
ACX_PROG_CXX_WARNING_OPTS(
m4_quote(m4_do([-W -Wall -Wno-narrowing -Wwrite-strings ],
- [-Wcast-qual $wf_opt])), [loose_warn])
+ [-Wcast-qual -Wno-error=format-diag $wf_opt])),
+ [loose_warn])
ACX_PROG_CC_WARNING_OPTS(
- m4_quote(m4_do([-Wstrict-prototypes -Wmissing-prototypes])),
- [c_loose_warn])
+ m4_quote(m4_do([-Wstrict-prototypes -Wmissing-prototypes ],
+ [-Wno-error=format-diag])), [c_loose_warn])
ACX_PROG_CXX_WARNING_OPTS(
m4_quote(m4_do([-Wmissing-format-attribute ],
[-Woverloaded-virtual])), [strict_warn])
ACX_PKGVERSION([GCC])
ACX_BUGURL([https://gcc.gnu.org/bugs/])
+# Allow overriding the default URL for documentation
+AC_ARG_WITH(documentation-root-url,
+ AS_HELP_STRING([--with-documentation-root-url=URL],
+ [Root for documentation URLs]),
+ [case "$withval" in
+ yes) AC_MSG_ERROR([documentation root URL not specified]) ;;
+ no) AC_MSG_ERROR([documentation root URL not specified]) ;;
+ *) DOCUMENTATION_ROOT_URL="$withval"
+ ;;
+ esac],
+ DOCUMENTATION_ROOT_URL="https://gcc.gnu.org/onlinedocs/gcc/"
+)
+AC_SUBST(DOCUMENTATION_ROOT_URL)
+
# Sanity check enable_languages in case someone does not run the toplevel
# configure # script.
AC_ARG_ENABLE(languages,
esac],
[enable_languages=c])
+# If top-level libada has been disabled, then wire in install-gnatlib
+# invocation with `make install', so that one can build and install
+# the library manually with `make -C gcc all gnatlib gnattools install'.
+if test x"$enable_libada" = xno; then
+ gnat_install_lib=gnat-install-lib
+else
+ gnat_install_lib=
+fi
+AC_SUBST(gnat_install_lib)
+
if test x"$enable_as_accelerator_for" != x; then
AC_DEFINE(ACCEL_COMPILER, 1,
[Define if this compiler should be built as the offload target compiler.])
enable_hsa=1
else
enable_offloading=1
+ case "$tgt" in
+ *-intelmicemul-*)
+ omp_device_property=omp-device-properties-i386
+ omp_device_property_tmake_file="${omp_device_property_tmake_file} \$(srcdir)/config/i386/t-omp-device"
+ ;;
+ gcn*-*)
+ omp_device_property=omp-device-properties-gcn
+ omp_device_property_tmake_file="${omp_device_property_tmake_file} \$(srcdir)/config/gcn/t-omp-device"
+ ;;
+ nvptx*-*)
+ omp_device_property=omp-device-properties-nvptx
+ omp_device_property_tmake_file="${omp_device_property_tmake_file} \$(srcdir)/config/nvptx/t-omp-device"
+ ;;
+ esac
+ omp_device_properties="${omp_device_properties} ${tgt}=${omp_device_property}"
+ omp_device_property_deps="${omp_device_property_deps} ${omp_device_property}"
fi
if test x"$offload_targets" = x; then
offload_targets="$offload_targets,$tgt"
fi
done
+AC_SUBST(omp_device_properties)
+AC_SUBST(omp_device_property_deps)
+
AC_DEFINE_UNQUOTED(OFFLOAD_TARGETS, "$offload_targets",
[Define to offload targets, separated by commas.])
if test x"$enable_offloading" != x; then
LIBS="$save_LIBS"
AC_SUBST(LDEXP_LIB)
+# Some systems need dlopen
+save_LIBS="$LIBS"
+LIBS=
+AC_SEARCH_LIBS(dlopen, dl)
+DL_LIB="$LIBS"
+LIBS="$save_LIBS"
+AC_SUBST(DL_LIB)
+
# Use <inttypes.h> only if it exists,
# doesn't clash with <sys/types.h>, declares intmax_t and defines
# PRId64
[Define if you have a working <inttypes.h> header file.])
fi
+# Look for the ZSTD package.
+ZSTD_INCLUDE=
+ZSTD_LIB=
+AC_SUBST(ZSTD_INCLUDE)
+AC_SUBST(ZSTD_LIB)
+ZSTD_CPPFLAGS=
+ZSTD_LDFLAGS=
+AC_ARG_WITH(zstd,
+ [AS_HELP_STRING([--with-zstd=PATH],
+ [specify prefix directory for installed zstd library.
+ Equivalent to --with-zstd-include=PATH/include
+ plus --with-zstd-lib=PATH/lib])])
+AC_ARG_WITH(zstd-include,
+ [AS_HELP_STRING([--with-zstd-include=PATH],
+ [specify directory for installed zstd include files])])
+AC_ARG_WITH(zstd-lib,
+ [AS_HELP_STRING([--with-zstd-lib=PATH],
+ [specify directory for the installed zstd library])])
+case "x$with_zstd" in
+ x) ;;
+ xno)
+ ZSTD_INCLUDE=no
+ ZSTD_LIB=no
+ ;;
+ *) ZSTD_INCLUDE=$with_zstd/include
+ ZSTD_LIB=$with_zstd/lib
+ ;;
+esac
+if test "x$with_zstd_include" != x; then
+ ZSTD_INCLUDE=$with_zstd_include
+fi
+if test "x$with_zstd_lib" != x; then
+ ZSTD_LIB=$with_zstd_lib
+fi
+if test "x$ZSTD_INCLUDE" != x \
+ && test "x$ZSTD_INCLUDE" != xno; then
+ ZSTD_CPPFLAGS=-I$ZSTD_INCLUDE
+fi
+if test "x$ZSTD_LIB" != x \
+ && test "x$ZSTD_LIB" != xno; then
+ ZSTD_LDFLAGS=-L$ZSTD_LIB
+fi
+
+CXXFLAGS="$CXXFLAGS $ZSTD_CPPFLAGS"
+LDFLAGS="$LDFLAGS $ZSTD_LDFLAGS"
+
+AC_MSG_CHECKING(for zstd.h)
+AC_CACHE_VAL(gcc_cv_header_zstd_h,
+[AC_COMPILE_IFELSE([AC_LANG_PROGRAM(
+[[#include <zstd.h>]])],
+ [gcc_cv_header_zstd_h=yes],
+ [gcc_cv_header_zstd_h=no])])
+AC_MSG_RESULT($gcc_cv_header_zstd_h)
+if test $gcc_cv_header_zstd_h = yes; then
+ AC_DEFINE(HAVE_ZSTD_H, 1,
+ [Define if you have a working <zstd.h> header file.])
+fi
+
+# LTO can use zstd compression algorithm
+save_LIBS="$LIBS"
+LIBS=
+AC_SEARCH_LIBS(ZSTD_compress, zstd)
+ZSTD_LIB="$LIBS"
+LIBS="$save_LIBS"
+AC_SUBST(ZSTD_LIB)
+
dnl Disabled until we have a complete test for buggy enum bitfields.
dnl gcc_AC_C_ENUM_BF_UNSIGNED
AC_CHECK_FUNCS(times clock kill getrlimit setrlimit atoq \
popen sysconf strsignal getrusage nl_langinfo \
gettimeofday mbstowcs wcswidth mmap setlocale \
- gcc_UNLOCKED_FUNCS madvise)
+ gcc_UNLOCKED_FUNCS madvise mallinfo)
if test x$ac_cv_func_mbstowcs = xyes; then
AC_CACHE_CHECK(whether mbstowcs works, gcc_cv_func_mbstowcs_works,
#endif
])
+gcc_AC_CHECK_DECLS(mallinfo, , ,[
+#include "ansidecl.h"
+#include "system.h"
+#ifdef HAVE_MALLOC_H
+#include <malloc.h>
+#endif
+])
+
AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
#include "ansidecl.h"
#include "system.h"
if test x$host = x$build
then
build_auto=auto-host.h
+ HAVE_AUTO_BUILD='# '
else
# We create a subdir, then run autoconf in the subdir.
# To prevent recursion we set host and build for the new
GMPINC="" CPPFLAGS="${CPPFLAGS} -DGENERATOR_FILE" \
${realsrcdir}/configure \
--enable-languages=${enable_languages-all} \
- --target=$target_alias --host=$build_alias --build=$build_alias
+ ${enable_obsolete+--enable-obsolete="$enable_obsolete"} \
+ ${enable_option_checking+--enable-option-checking="$enable_option_checking"} \
+ --target=$target_alias --host=$build_alias \
+ --build=$build_alias || exit # retaining $tempdir
# We just finished tests for the build machine, so rename
# the file auto-build.h in the gcc directory.
cd ..
rm -rf $tempdir
build_auto=auto-build.h
+ HAVE_AUTO_BUILD=
fi
AC_SUBST(build_subdir)
+AC_SUBST(HAVE_AUTO_BUILD)
tm_file="${tm_file} defaults.h"
tm_p_file="${tm_p_file} tm-preds.h"
AC_ARG_ENABLE(frame-pointer,
[AS_HELP_STRING([--enable-frame-pointer],
- [enable -fno-omit-frame-pointer by default for 32bit x86])], [],
+ [enable -fno-omit-frame-pointer by default for x86])], [],
[
case $target_os in
-linux* | darwin[[8912]]*)
- # Enable -fomit-frame-pointer by default for Linux and Darwin with
- # DWARF2.
+linux* | gnu* | darwin[[8912]]* | cygwin* | mingw*)
+ # Enable -fomit-frame-pointer by default for these systems with DWARF2.
enable_frame_pointer=no
;;
*)
esac
])
+case $target in
+i[[34567]]86-*-* | x86_64-*-*)
+ if test "x$enable_cld" = xyes; then
+ tm_defines="${tm_defines} USE_IX86_CLD=1"
+ fi
+ if test "x$enable_frame_pointer" = xyes; then
+ tm_defines="${tm_defines} USE_IX86_FRAME_POINTER=1"
+ fi
+ ;;
+esac
+
# Windows32 Registry support for specifying GCC installation paths.
AC_ARG_ENABLE(win32-registry,
[AS_HELP_STRING([--disable-win32-registry],
tmake_file_="${tmake_file_} \$(srcdir)/config/$f"
fi
done
-tmake_file="${tmake_file_}"
+tmake_file="${tmake_file_}${omp_device_property_tmake_file}"
out_object_file=`basename $out_file .c`.o
common_out_object_file=`basename $common_out_file .c`.o
#
# ld: Software Generation Utilities - Solaris Link Editors: 5.11-1.1701:onnv-ab196087-6931056-03/25/10
#
- # In Solaris 11.4, this was changed to
- #
- # ld: Solaris ELF Utilities: 11.4-1.3123
- #
# ld and ld.so.1 are guaranteed to be updated in lockstep, so ld version
# numbers can be used in ld.so.1 feature checks even if a different
# linker is configured.
ld_ver=`$gcc_cv_ld -V 2>&1`
- if echo "$ld_ver" | $EGREP 'Solaris Link Editors|Solaris ELF Utilities' > /dev/null; then
+ if echo "$ld_ver" | grep 'Solaris Link Editors' > /dev/null; then
ld_vers=`echo $ld_ver | sed -n \
- -e 's,^.*: \(5\|1[0-9]\)\.[0-9][0-9]*-\([0-9]\.[0-9][0-9]*\).*$,\2,p'`
+ -e 's,^.*: 5\.[0-9][0-9]*-\([0-9]\.[0-9][0-9]*\).*$,\1,p'`
ld_vers_major=`expr "$ld_vers" : '\([0-9]*\)'`
ld_vers_minor=`expr "$ld_vers" : '[0-9]*\.\([0-9]*\)'`
fi
hppa64*-*-hpux* | ia64*-*-hpux*)
gcc_cv_ld_hidden=yes
;;
- *-*-solaris2.1[0-9]*)
+ *-*-solaris2*)
# Support for .hidden in Sun ld appeared in Solaris 9 FCS, but
# .symbolic was only added in Solaris 9 12/02.
gcc_cv_ld_hidden=yes
[elf,2,12,0], [--fatal-warnings],
[.section .rodata.str, "aMS", %progbits, 1])
fi
-case "$target" in
- i?86-*-solaris2.10* | x86_64-*-solaris2.10*)
- # SHF_MERGE support in Solaris 10/x86 ld is broken.
- if test x"$gnu_ld" = xno; then
- gcc_cv_as_shf_merge=no
- fi
- ;;
-esac
AC_DEFINE_UNQUOTED(HAVE_GAS_SHF_MERGE,
[`if test $gcc_cv_as_shf_merge = yes; then echo 1; else echo 0; fi`],
[Define 0/1 if your assembler supports marking sections with SHF_MERGE flag.])
gcc_cv_ld_aligned_shf_merge=yes
case "$target" in
- # While Solaris 10/SPARC ld isn't affected, disable to avoid problems
- # relinking on Solaris 11 < 11.4.
- sparc*-*-solaris2.10*)
- if test x"$gnu_ld" = xno; then
- gcc_cv_ld_aligned_shf_merge=no
- fi
- ;;
# SHF_MERGE support is broken in Solaris ld up to Solaris 11.3/SPARC for
# alignment > 1.
sparc*-*-solaris2.11*)
foo:
'
;;
- i?86-*-solaris2* | x86_64-*-solaris2.1[[0-9]]*)
+ i?86-*-solaris2* | x86_64-*-solaris2*)
conftest_s='
.group foo,.text%foo,#comdat
.section .text%foo, "ax", @progbits
[AC_DEFINE(HAVE_GAS_DISCRIMINATOR, 1,
[Define if your assembler supports the .loc discriminator sub-directive.])])
+# Catch the newlib flag of the same name so we can gate GCC features on it.
+AC_ARG_ENABLE(newlib-nano-formatted-io,
+[AS_HELP_STRING([--enable-newlib-nano-formatted-io], [Use nano version
+ formatted IO])],
+[case "${enableval}" in
+ yes|no)
+ ;;
+ *)
+ AC_MSG_ERROR([unknown newlib-nano-formatted-io setting $enableval])
+ ;;
+esac], [])
+
# Thread-local storage - the check is heavily parameterized.
conftest_s=
tls_first_major=
;;
i[34567]86-*-* | x86_64-*-*)
case "$target" in
- i[34567]86-*-solaris2.* | x86_64-*-solaris2.1[0-9]*)
+ i[34567]86-*-solaris2.* | x86_64-*-solaris2.*)
on_solaris=yes
;;
*)
[ .machine ppc7400])
if test x$gcc_cv_as_machine_directive != xyes; then
echo "*** This target requires an assembler supporting \".machine\"" >&2
- echo you can get it from: ftp://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2
+ echo you can get it from: https://gcc.gnu.org/pub/gcc/infrastructure/cctools-528.5.dmg >&2
test x$build = x$target && exit 1
fi
;;
[AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1,
[Define if your assembler supports .gnu_attribute.])])
- gcc_GAS_CHECK_FEATURE([tls marker support],
- gcc_cv_as_powerpc_tls_markers, [2,20,0],,
- [ bl __tls_get_addr(x@tlsgd)],,
- [AC_DEFINE(HAVE_AS_TLS_MARKERS, 1,
- [Define if your assembler supports arg info for __tls_get_addr.])])
-
gcc_GAS_CHECK_FEATURE([prologue entry point marker support],
gcc_cv_as_powerpc_entry_markers, [2,26,0],-a64 --fatal-warnings,
[ .reloc .,R_PPC64_ENTRY; nop],,
[Requesting --with-nan= requires assembler support for -mnan=])
fi
;;
+ msp430-*-*)
+ # Earlier GAS versions generically support .gnu_attribute, but the
+ # msp430 assembler will not do anything with it.
+ gcc_GAS_CHECK_FEATURE([.gnu_attribute support],
+ gcc_cv_as_msp430_gnu_attribute, [2,33,50],,
+ [.gnu_attribute 4,1],,
+ [AC_DEFINE(HAVE_AS_GNU_ATTRIBUTE, 1,
+ [Define if your assembler supports .gnu_attribute.])])
+ gcc_GAS_CHECK_FEATURE([.mspabi_attribute support],
+ gcc_cv_as_msp430_mspabi_attribute, [2,33,50],,
+ [.mspabi_attribute 4,1],,
+ [AC_DEFINE(HAVE_AS_MSPABI_ATTRIBUTE, 1,
+ [Define if your assembler supports .mspabi_attribute.])])
+ if test x$enable_newlib_nano_formatted_io = xyes; then
+ AC_DEFINE(HAVE_NEWLIB_NANO_FORMATTED_IO, 1, [Define if GCC has been
+configured with --enable-newlib-nano-formatted-io.])
+ fi
+ ;;
+ riscv*-*-*)
+ gcc_GAS_CHECK_FEATURE([.attribute support],
+ gcc_cv_as_riscv_attribute, [2,32,0],,
+ [.attribute stack_align,4],,
+ [AC_DEFINE(HAVE_AS_RISCV_ATTRIBUTE, 1,
+ [Define if your assembler supports .attribute.])])
+ ;;
s390*-*-*)
gcc_GAS_CHECK_FEATURE([.gnu_attribute support],
gcc_cv_as_s390_gnu_attribute, [2,18,0],,
# version to the per-target configury.
case "$cpu_type" in
aarch64 | alpha | arc | arm | avr | bfin | cris | csky | i386 | m32c | m68k \
- | microblaze | mips | nios2 | pa | riscv | rs6000 | score | sparc | spu \
+ | microblaze | mips | nds32 | nios2 | pa | riscv | rs6000 | score | sparc \
| tilegx | tilepro | visium | xstormy16 | xtensa)
insn="nop"
;;
AC_ARG_WITH(long-double-128,
[AS_HELP_STRING([--with-long-double-128],
[use 128-bit long double by default])],
- gcc_cv_target_ldbl128="$with_long_double_128",
+ gcc_cv_target_ldbl128="$with_long_double_128", [
+ case "$target" in
+ s390*-*-linux-musl*)
+ gcc_cv_target_ldbl128=yes
+ ;;
+ powerpc*-*-linux-musl*)
+ gcc_cv_target_ldbl128=no
+ ;;
+ *)]
[GCC_GLIBC_VERSION_GTE_IFELSE([2], [4], [gcc_cv_target_ldbl128=yes], [
[gcc_cv_target_ldbl128=no
grep '^[ ]*#[ ]*define[ ][ ]*__LONG_DOUBLE_MATH_OPTIONAL' \
$target_header_dir/bits/wordsize.h > /dev/null 2>&1 \
&& gcc_cv_target_ldbl128=yes
- ]])])
+ ]])]
+ [
+ ;;
+ esac
+ ])
;;
esac
if test x$gcc_cv_target_ldbl128 = xyes; then
AC_MSG_CHECKING(dl_iterate_phdr in target C library)
gcc_cv_target_dl_iterate_phdr=unknown
case "$target" in
- # Restrict to Solaris 11+. While most of the Solaris 11 linker changes
- # were backported to Solaris 10 Update 10, dl_iterate_phdr only lives in
- # libdl there, both complicating its use and breaking compatibility
- # between Solaris 10 updates.
- *-*-solaris2.1[[1-9]]*)
+ *-*-solaris2*)
# <link.h> needs both a dl_iterate_phdr declaration and support for
# compilation with largefile support.
if grep dl_iterate_phdr $target_header_dir/link.h > /dev/null 2>&1 \
all_languages=
all_compilers=
all_outputs='Makefile'
-# List of language makefile fragments.
+# List of language configure and makefile fragments.
+all_lang_configurefrags=
all_lang_makefrags=
# Additional files for gengtype
all_gtfiles="$target_gtfiles"
esac
$ok || continue
+ all_lang_configurefrags="$all_lang_configurefrags \$(srcdir)/$gcc_subdir/config-lang.in"
all_lang_makefrags="$all_lang_makefrags \$(srcdir)/$gcc_subdir/Make-lang.in"
if test -f $srcdir/$gcc_subdir/lang.opt; then
lang_opt_files="$lang_opt_files $srcdir/$gcc_subdir/lang.opt"
AC_SUBST(srcdir)
AC_SUBST(all_compilers)
AC_SUBST(all_gtfiles)
+AC_SUBST(all_lang_configurefrags)
AC_SUBST(all_lang_makefrags)
AC_SUBST(all_languages)
AC_SUBST(all_selected_languages)
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