AC_CONFIG_SRCDIR(tree.c)
AC_CONFIG_HEADER(auto-host.h:config.in)
+#Set to 1 on a release branch
+is_release=
+
# Determine the host, build, and target systems
AC_CANONICAL_BUILD
AC_CANONICAL_HOST
AC_CANONICAL_TARGET
# Determine the noncanonical target name, for directory use.
-_GCC_TOPLEV_NONCANONICAL_TARGET
+ACX_NONCANONICAL_TARGET
# Determine the target- and build-specific subdirectories
GCC_TOPLEV_SUBDIRS
gcc_AC_C_LONG_LONG
# sizeof(char) is 1 by definition.
-AC_COMPILE_CHECK_SIZEOF(void *)
-AC_COMPILE_CHECK_SIZEOF(short)
-AC_COMPILE_CHECK_SIZEOF(int)
-AC_COMPILE_CHECK_SIZEOF(long)
+AC_CHECK_SIZEOF(void *)
+AC_CHECK_SIZEOF(short)
+AC_CHECK_SIZEOF(int)
+AC_CHECK_SIZEOF(long)
if test $ac_cv_c_long_long = yes; then
- AC_COMPILE_CHECK_SIZEOF(long long)
+ AC_CHECK_SIZEOF(long long)
fi
if test $ac_cv_c___int64 = yes; then
- AC_COMPILE_CHECK_SIZEOF(__int64)
+ AC_CHECK_SIZEOF(__int64)
fi
# ---------------------
AC_SUBST(warn_cflags)
# Enable -Werror in bootstrap stage2 and later.
-# Change the default to "no" on release branches.
AC_ARG_ENABLE(werror,
[ --enable-werror enable -Werror in bootstrap stage2 and later], [],
-[enable_werror=yes])
+[if test x$is_release = x ; then
+ # Default to "yes" on development branches.
+ enable_werror=yes
+else
+ # Default to "no" on release branches.
+ enable_werror=no
+fi])
if test x$enable_werror = xyes ; then
WERROR=-Werror
fi
[ --enable-checking[=LIST]
enable expensive run-time checks. With LIST,
enable only specific categories of checks.
- Categories are: fold,gc,gcac,misc,rtlflag,rtl,
- tree,valgrind; default is gc,misc,rtlflag,tree],
-[ac_checking=
+ Categories are: assert,fold,gc,gcac,misc,
+ rtlflag,rtl,tree,valgrind,release,yes,all;],
+[ac_checking_flags="${enableval}"],[
+# Determine the default checks.
+if test x$is_release = x ; then
+ ac_checking_flags=yes
+else
+ ac_checking_flags=release
+fi])
+ac_assert_checking=1
+ac_checking=
ac_tree_checking=
ac_rtl_checking=
ac_rtlflag_checking=
ac_gc_checking=
ac_gc_always_collect=
ac_fold_checking=
-case "${enableval}" in
-yes) ac_checking=1 ; ac_tree_checking=1 ; ac_gc_checking=1 ;
- ac_rtlflag_checking=1 ;;
-no) ;;
-*) IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
- set fnord $enableval; shift
- IFS="$ac_save_IFS"
- for check
- do
- case $check in
- fold) ac_fold_checking=1 ;;
- gc) ac_gc_checking=1 ;;
- gcac) ac_gc_always_collect=1 ;;
- misc) ac_checking=1 ;;
- rtlflag) ac_rtlflag_checking=1 ;;
- rtl) ac_rtl_checking=1 ;;
- tree) ac_tree_checking=1 ;;
- valgrind) ac_checking_valgrind=1 ;;
- *) AC_MSG_ERROR(unknown check category $check) ;;
- esac
- done
- ;;
-esac
-],
-# Enable some checks by default for development versions of GCC
-[ac_checking=1; ac_tree_checking=1; ac_gc_checking=1; ac_rtlflag_checking=1;])
+IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
+for check in $ac_checking_flags
+do
+ case $check in
+ yes) ac_assert_checking=1 ; ac_checking=1 ;
+ ac_tree_checking=1 ; ac_gc_checking=1 ;
+ ac_rtlflag_checking=1 ;;
+ no) ac_assert_checking= ; ac_checking= ;
+ ac_tree_checking= ; ac_rtl_checking= ;
+ ac_rtlflag_checking= ; ac_gc_checking= ;
+ ac_gc_always_collect= ; ac_fold_checking= ;;
+ all) ac_assert_checking=1 ; ac_checking=1 ;
+ ac_tree_checking=1 ; ac_rtl_checking=1 ;
+ ac_rtlflag_checking=1 ; ac_gc_checking=1 ;
+ ac_gc_always_collect=1 ; ac_fold_checking=1 ;;
+ release) ac_assert_checking=1 ;;
+ assert) ac_assert_checking=1 ;;
+ fold) ac_fold_checking=1 ;;
+ gc) ac_gc_checking=1 ;;
+ gcac) ac_gc_always_collect=1 ;;
+ misc) ac_checking=1 ;;
+ rtlflag) ac_rtlflag_checking=1 ;;
+ rtl) ac_rtl_checking=1 ;;
+ tree) ac_tree_checking=1 ;;
+ valgrind) ac_checking_valgrind=1 ;;
+ *) AC_MSG_ERROR(unknown check category $check) ;;
+ esac
+done
+IFS="$ac_save_IFS"
+
nocommon_flag=""
if test x$ac_checking != x ; then
AC_DEFINE(ENABLE_CHECKING, 1,
nocommon_flag=-fno-common
fi
AC_SUBST(nocommon_flag)
+if test x$ac_assert_checking != x ; then
+ AC_DEFINE(ENABLE_ASSERT_CHECKING, 1,
+[Define if you want assertions enabled. This is a cheap check.])
+fi
if test x$ac_tree_checking != x ; then
AC_DEFINE(ENABLE_TREE_CHECKING, 1,
[Define if you want all operations on trees (the basic data
# Enable code coverage collection
AC_ARG_ENABLE(coverage,
[ --enable-coverage[=LEVEL]
- enable compiler\'s code coverage collection.
+ enable compiler's code coverage collection.
Use to measure compiler performance and locate
unused parts of the compiler. With LEVEL, specify
optimization. Values are opt, noopt,
# See if we have the mktemp command.
AC_CHECK_PROG(have_mktemp_command, mktemp, yes, no)
-# Do we have a single-tree copy of texinfo?
-if test -f $srcdir/../texinfo/Makefile.in; then
- MAKEINFO='$(objdir)/../texinfo/makeinfo/makeinfo'
- gcc_cv_prog_makeinfo_modern=yes
- AC_MSG_RESULT([Using makeinfo from the unified source tree.])
-else
- # See if makeinfo has been installed and is modern enough
- # that we can use it.
- gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
+MISSING="${CONFIG_SHELL-/bin/sh} $srcdir/../missing"
+
+# See if makeinfo has been installed and is modern enough
+# that we can use it.
+gcc_AC_CHECK_PROG_VER(MAKEINFO, makeinfo, --version,
[GNU texinfo.* \([0-9][0-9.]*\)],
[4.[2-9]*])
-fi
-
if test $gcc_cv_prog_makeinfo_modern = no; then
+ MAKEINFO="$MISSING makeinfo"
AC_MSG_WARN([
*** Makeinfo is missing or too old.
*** Info documentation will not be built.])
BUILD_INFO=
else
- BUILD_INFO=info AC_SUBST(BUILD_INFO)
+ BUILD_INFO=info
fi
+AC_SUBST(BUILD_INFO)
# Is pod2man recent enough to regenerate manpages?
AC_MSG_CHECKING([for recent Pod::Man])
if (perl -e 'use 1.10 Pod::Man') >/dev/null 2>&1; then
AC_MSG_RESULT(yes)
- GENERATED_MANPAGES=generated-manpages AC_SUBST(GENERATED_MANPAGES)
+ GENERATED_MANPAGES=generated-manpages
else
AC_MSG_RESULT(no)
GENERATED_MANPAGES=
fi
+AC_SUBST(GENERATED_MANPAGES)
# How about lex?
dnl Don't use AC_PROG_LEX; we insist on flex.
dnl LEXLIB is not useful in gcc.
-if test x${build} = x${host} && test -f $srcdir/../flex/skel.c; then
- FLEX='$(objdir)/../flex/flex'
-else
- AC_CHECK_PROG(FLEX, flex, flex, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing flex)
-fi
+AC_CHECK_PROGS([FLEX], flex, [$MISSING flex])
# Bison?
-# The -L switch is so bison can find its skeleton file.
-if test x${build} = x${host} && test -f $srcdir/../bison/bison.simple; then
- BISON='$(objdir)/../bison/bison -L $(srcdir)/../bison/'
-else
- AC_CHECK_PROG(BISON, bison, bison, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing bison)
-fi
+AC_CHECK_PROGS([BISON], bison, [$MISSING bison])
+
+# Binutils are not build modules, unlike bison/flex/makeinfo. So we
+# check for build == host before using them.
# NM
-if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c; then
+if test x${build} = x${host} && test -f $srcdir/../binutils/nm.c \
+ && test -d ../binutils ; then
NM='$(objdir)/../binutils/nm-new'
else
AC_CHECK_PROG(NM, nm, nm, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing nm)
fi
# AR
-if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c; then
+if test x${build} = x${host} && test -f $srcdir/../binutils/ar.c \
+ && test -d ../binutils ; then
AR='$(objdir)/../binutils/ar'
else
AC_CHECK_PROG(AR, ar, ar, ${CONFIG_SHELL-/bin/sh} ${srcdir}/../missing ar)
AC_DEFINE_UNQUOTED(CONFIG_SJLJ_EXCEPTIONS, $sjlj,
[Define 0/1 to force the choice for exception handling model.])])
-if test x$host = x$target; then
- AC_CHECK_LIB(unwind, main, use_libunwind_default=yes, use_libunwind_default=no)
-else
- use_libunwind_default=no
-fi
-# Use libunwind based exception handling.
-AC_ARG_ENABLE(libunwind-exceptions,
-[ --enable-libunwind-exceptions force use libunwind for exceptions],
-use_libunwind_exceptions=$enableval,
-use_libunwind_exceptions=$use_libunwind_default)
-if test x"$use_libunwind_exceptions" = xyes; then
- AC_DEFINE(USE_LIBUNWIND_EXCEPTIONS, 1,
- [Define if gcc should use -lunwind.])
-fi
+# For platforms with the unwind ABI which includes an unwind library,
+# libunwind, we can choose to use the system libunwind.
+AC_ARG_WITH(system-libunwind,
+[ --with-system-libunwind use installed libunwind])
# --------------------------------------------------------
# Build, host, and target specific configuration fragments
[Define to 1 if HOST_WIDE_INT must be 64 bits wide (see hwint.h).])
fi
+if test x$use_long_long_for_widest_fast_int = xyes; then
+ AC_DEFINE(USE_LONG_LONG_FOR_WIDEST_FAST_INT, 1,
+[Define to 1 if the 'long long' (or '__int64') is wider than 'long' but still
+efficiently supported by the host hardware.])
+fi
+
count=a
for f in $host_xm_file; do
count=${count}x
if test x$host = x$build
then
build_auto=auto-host.h
- FORBUILD=..
else
# We create a subdir, then run autoconf in the subdir.
# To prevent recursion we set host and build for the new
cd ..
rm -rf $tempdir
build_auto=auto-build.h
- FORBUILD=../${build_subdir}
fi
-AC_SUBST(FORBUILD)
+AC_SUBST(build_subdir)
tm_file="${tm_file} defaults.h"
tm_p_file="${tm_p_file} tm-preds.h"
# Also, we cannot run fixincludes or fix-header.
# These are the normal (build=host) settings:
-BUILD_PREFIX= AC_SUBST(BUILD_PREFIX)
-BUILD_PREFIX_1=ignore- AC_SUBST(BUILD_PREFIX_1)
CC_FOR_BUILD='$(CC)' AC_SUBST(CC_FOR_BUILD)
BUILD_CFLAGS='$(ALL_CFLAGS)' AC_SUBST(BUILD_CFLAGS)
-
STMP_FIXINC=stmp-fixinc AC_SUBST(STMP_FIXINC)
# Possibly disable fixproto, on a per-target basis.
# And these apply if build != host, or we are generating coverage data
if test x$build != x$host || test "x$coverage_flags" != x
then
- BUILD_PREFIX=build-
- BUILD_PREFIX_1=build-
BUILD_CFLAGS='$(INTERNAL_CFLAGS) $(T_CFLAGS) $(CFLAGS_FOR_BUILD)'
if test "x$TARGET_SYSTEM_ROOT" = x; then
fi
fi
+# When bootstrapping from the toplevel, only run fixincludes during stage1
+if test -d ../prev-gcc
+then
+ STMP_FIXINC=
+ cp -R ../prev-gcc/include include
+fi
+
# Expand extra_headers to include complete path.
# This substitutes for lots of t-* files.
extra_headers_list=
in_tree_ld=yes
in_tree_ld_is_elf=no
if (grep 'EMUL = .*elf' ../ld/Makefile \
- || grep 'EMUL = .*linux' ../ld/Makefile) > /dev/null; then
+ || grep 'EMUL = .*linux' ../ld/Makefile \
+ || grep 'EMUL = .*lynx' ../ld/Makefile) > /dev/null; then
in_tree_ld_is_elf=yes
fi
for f in $gcc_cv_ld_bfd_srcdir/configure $gcc_cv_ld_gld_srcdir/configure $gcc_cv_ld_gld_srcdir/configure.in $gcc_cv_ld_gld_srcdir/Makefile.in
do
changequote(,)dnl
- gcc_cv_gld_version=`grep '^VERSION=[0-9]*\.[0-9]*' $f`
+ gcc_cv_gld_version=`sed -n -e 's/^[ ]*\(VERSION=[0-9]*\.[0-9]*.*\)/\1/p' < $f`
changequote([,])dnl
if test x$gcc_cv_gld_version != x; then
break
gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
[elf,2,12,0], [--fatal-warnings],
[.section .rodata.str, "aMS", @progbits, 1])
+if test $gcc_cv_as_shf_merge = no; then
+ gcc_GAS_CHECK_FEATURE(section merging support, gcc_cv_as_shf_merge,
+ [elf,2,12,0], [--fatal-warnings],
+ [.section .rodata.str, "aMS", %progbits, 1])
+fi
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_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group,
+ [elf,2,15,91], [--fatal-warnings],
+ [.section .text,"axG",@progbits,.foo,comdat])
+if test $gcc_cv_as_comdat_group = yes; then
+ gcc_cv_as_comdat_group_percent=no
+else
+ gcc_GAS_CHECK_FEATURE(COMDAT group support, gcc_cv_as_comdat_group_percent,
+ [elf,2,15,91], [--fatal-warnings],
+ [.section .text,"axG",%progbits,.foo,comdat])
+fi
+AC_DEFINE_UNQUOTED(HAVE_GAS_COMDAT_GROUP,
+ [`if test $gcc_cv_as_comdat_group = yes || test $gcc_cv_as_comdat_group_percent = yes; then echo 1; else echo 0; fi`],
+[Define 0/1 if your assembler supports COMDAT group.])
+
# Thread-local storage - the check is heavily parametrized.
conftest_s=
tls_first_major=
else target_cpu_default="($target_cpu_default)|MASK_EXPLICIT_RELOCS"
fi])
+ if test x$gas_flag = xyes \
+ || test x"$host" != x"$build" \
+ || test ! -x "$gcc_cv_as" \
+ || "$gcc_cv_as" -v < /dev/null 2>&1 | grep GNU > /dev/null; then
+ :
+ else
+ echo "*** This configuration requires the GNU assembler" >&2
+ exit 1
+ fi
;;
esac
# ??? Not all targets support dwarf2 debug_line, even within a version
[Define if your linker supports --as-needed and --no-as-needed options.])
fi
+case "$target" in
+ powerpc64*-*-linux*)
+ AC_CACHE_CHECK(linker support for omitting dot symbols,
+ gcc_cv_ld_no_dot_syms,
+ [gcc_cv_ld_no_dot_syms=no
+ if test $in_tree_ld = yes ; then
+ if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 16 -o "$gcc_cv_gld_major_version" -gt 2; then
+ gcc_cv_ld_no_dot_syms=yes
+ fi
+ elif test x$gcc_cv_as != x -a x$gcc_cv_ld != x ; then
+ cat > conftest1.s <<EOF
+ .text
+ bl .foo
+EOF
+ cat > conftest2.s <<EOF
+ .section ".opd","aw"
+ .align 3
+ .globl foo
+ .type foo,@function
+foo:
+ .quad .LEfoo,.TOC.@tocbase,0
+ .text
+.LEfoo:
+ blr
+ .size foo,.-.LEfoo
+EOF
+ if $gcc_cv_as -a64 -o conftest1.o conftest1.s > /dev/null 2>&1 \
+ && $gcc_cv_as -a64 -o conftest2.o conftest2.s > /dev/null 2>&1 \
+ && $gcc_cv_ld -melf64ppc -o conftest conftest1.o conftest2.o > /dev/null 2>&1; then
+ gcc_cv_ld_no_dot_syms=yes
+ fi
+ rm -f conftest conftest1.o conftest2.o conftest1.s conftest2.s
+ fi
+ ])
+ if test x"$gcc_cv_ld_no_dot_syms" = xyes; then
+ AC_DEFINE(HAVE_LD_NO_DOT_SYMS, 1,
+ [Define if your PowerPC64 linker only needs function descriptor syms.])
+ fi
+ ;;
+esac
+
if test x$with_sysroot = x && test x$host = x$target \
&& test "$prefix" != "/usr" && test "x$prefix" != "x$local_prefix" ; then
AC_DEFINE_UNQUOTED(PREFIX_INCLUDE_DIR, "$prefix/include",
fi
AC_SUBST(MAINT)dnl
-AC_MSG_CHECKING([whether to use libbanshee for points-to alias analysis])
-AC_ARG_WITH(libbanshee,
-[ --with-libbanshee enable libbanshee],
-libbanshee="$with_libbanshee",
-libbanshee=no)
-
-if test x"$libbanshee" = xyes; then
- BANSHEELIB="../libbanshee/points-to/libandersen.a ../libbanshee/engine/libbansheeengine.a ../libbanshee/libcompat/libbansheecompat.a "
- BANSHEEINC="-I\$(srcdir)/../libbanshee/libcompat -I\$(srcdir)/../libbanshee -I\$(srcdir)/../libbanshee/points-to"
- ANDER="tree-alias-ander.o"
- AC_DEFINE(HAVE_BANSHEE, 1, [Define if BANSHEE is available])
-else
- BANSHEELIB=""
- BANSHEEINC=""
- ANDER=""
-fi
-AC_MSG_RESULT($with_libbanshee)
-
-AC_SUBST(ANDER)
-AC_SUBST(BANSHEEINC)
-AC_SUBST(BANSHEELIB)
-
# --------------
# Language hooks
# --------------
all_boot_languages=
all_compilers=
all_stagestuff=
-all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders libada-mk'
+all_outputs='Makefile gccbug mklibgcc mkheaders libada-mk'
# List of language makefile fragments.
all_lang_makefrags=
# List of language subdirectory makefiles. Deprecated.
AC_SUBST(xm_file_list)
AC_SUBST(xm_include_list)
AC_SUBST(xm_defines)
-AC_SUBST(target_noncanonical)
AC_SUBST(c_target_objs)
AC_SUBST(cxx_target_objs)
AC_SUBST(target_cpu_default)
# This is virtually a duplicate of what happens in configure.lang; we do
# an extra check to make sure this only happens if ln -s can be used.
if test "$symbolic_link" = "ln -s"; then
- for d in ${subdirs} fixinc ; do
+ for d in ${subdirs} ; do
STARTDIR=`${PWDCMD-pwd}`
cd $d
for t in stage1 stage2 stage3 stage4 stageprofile stagefeedback include
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