# Initialization and sanity checks
# --------------------------------
-AC_PREREQ(2.57)
+AC_PREREQ(2.59)
AC_INIT
AC_CONFIG_SRCDIR(tree.c)
AC_CONFIG_HEADER(auto-host.h:config.in)
DEFAULT_LINKER="$with_ld")
if test x"${DEFAULT_LINKER+set}" = x"set"; then
if test ! -x "$DEFAULT_LINKER"; then
- AC_MSG_WARN([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
+ AC_MSG_ERROR([cannot execute: $DEFAULT_LINKER: check --with-ld or env. var. DEFAULT_LINKER])
elif $DEFAULT_LINKER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
gnu_ld_flag=yes
fi
DEFAULT_ASSEMBLER="$with_as")
if test x"${DEFAULT_ASSEMBLER+set}" = x"set"; then
if test ! -x "$DEFAULT_ASSEMBLER"; then
- AC_MSG_WARN([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
+ AC_MSG_ERROR([cannot execute: $DEFAULT_ASSEMBLER: check --with-as or env. var. DEFAULT_ASSEMBLER])
elif $DEFAULT_ASSEMBLER -v < /dev/null 2>&1 | grep GNU > /dev/null; then
gas_flag=yes
fi
# Check C compiler features
# -------------------------
-AC_CACHE_CHECK(whether ${CC-cc} accepts -Wno-long-long,
-ac_cv_prog_cc_no_long_long,
-[save_CFLAGS="$CFLAGS"
-CFLAGS="-Wno-long-long"
-AC_TRY_COMPILE(,,ac_cv_prog_cc_no_long_long=yes,
- ac_cv_prog_cc_no_long_long=no)
-CFLAGS="$save_CFLAGS"])
-
AC_PROG_CPP
AC_C_INLINE
AC_COMPILE_CHECK_SIZEOF(__int64)
fi
-# -----------------
-# Find Ada compiler
-# -----------------
-
-# See if GNAT has been installed
-gcc_AC_PROG_GNAT
-
# ---------------------
# Warnings and checking
# ---------------------
+# Check $CC warning features (if it's GCC).
+# We want to use -pedantic, but we don't want warnings about
+# * 'long long'
+# * variadic macros
+# So, we only use -pedantic if we can disable those warnings.
+
+AC_CACHE_CHECK(
+ [whether ${CC} accepts -Wno-long-long],
+ [ac_cv_prog_cc_w_no_long_long],
+ [save_CFLAGS="$CFLAGS"
+ CFLAGS="-Wno-long-long"
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
+ [ac_cv_prog_cc_w_no_long_long=yes],
+ [ac_cv_prog_cc_w_no_long_long=no])
+ CFLAGS="$save_CFLAGS"
+ ])
+
+AC_CACHE_CHECK(
+ [whether ${CC} accepts -Wno-variadic-macros],
+ [ac_cv_prog_cc_w_no_variadic_macros],
+ [save_CFLAGS="$CFLAGS"
+ CFLAGS="-Wno-variadic-macros"
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
+ [ac_cv_prog_cc_w_no_variadic_macros=yes],
+ [ac_cv_prog_cc_w_no_variadic_macros=no])
+ CFLAGS="$save_CFLAGS"
+ ])
+
strict1_warn=
-if test $ac_cv_prog_cc_no_long_long = yes ; then
- strict1_warn="-pedantic -Wno-long-long"
+if test $ac_cv_prog_cc_w_no_long_long = yes \
+ && test $ac_cv_prog_cc_w_no_variadic_macros = yes ; then
+ strict1_warn="-pedantic -Wno-long-long -Wno-variadic-macros"
fi
AC_SUBST(strict1_warn)
+# Add -Wold-style-definition if it's accepted
+AC_CACHE_CHECK(
+ [whether ${CC} accepts -Wold-style-definition],
+ [ac_cv_prog_cc_w_old_style_definition],
+ [save_CFLAGS="$CFLAGS"
+ CFLAGS="-Wold-style-definition"
+ AC_COMPILE_IFELSE([AC_LANG_SOURCE([[]])],
+ [ac_cv_prog_cc_w_old_style_definition=yes],
+ [ac_cv_prog_cc_w_old_style_definition=no])
+ CFLAGS="$save_CFLAGS"
+ ])
+if test $ac_cv_prog_cc_w_old_style_definition = yes ; then
+ strict1_warn="${strict1_warn} -Wold-style-definition"
+fi
+
+# Enable -Werror, period.
+AC_ARG_ENABLE(werror_always,
+[ --enable-werror-always enable -Werror always], [],
+[enable_werror_always=no])
+if test x${enable_werror_always} = xyes ; then
+ strict1_warn="${strict1_warn} -Werror"
+ WERROR=-Werror
+fi
+
# If the native compiler is GCC, we can enable warnings even in stage1.
# That's useful for people building cross-compilers, or just running a
# quick `make'.
optimization. Values are opt, noopt,
default is noopt],
[case "${enableval}" in
-yes|noopt)
- coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
- ;;
-opt)
- coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
- ;;
-*)
- AC_MSG_ERROR(unknown coverage setting $enableval)
- ;;
+ yes|noopt)
+ coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O0"
+ ;;
+ opt)
+ coverage_flags="-fprofile-arcs -ftest-coverage -frandom-seed=\$@ -O2"
+ ;;
+ no)
+ # a.k.a. --disable-coverage
+ coverage_flags=""
+ ;;
+ *)
+ AC_MSG_ERROR(unknown coverage setting $enableval)
+ ;;
esac],
[coverage_flags=""])
AC_SUBST(coverage_flags)
[Define to enable detailed memory allocation stats gathering.])
fi
+AC_ARG_ENABLE(tree-browser,
+[ --enable-tree-browser enable the tree browsing routines for debugging], [],
+[enable_tree_browser=no])
+if test x$enable_tree_browser = xyes ; then
+ TREEBROWSER=tree-browser.o
+fi
+AC_SUBST(TREEBROWSER)
+
# -------------------------------
# Miscenalleous configure options
# -------------------------------
AC_ARG_ENABLE(threads,
[ --enable-threads enable thread usage for target GCC
--enable-threads=LIB use LIB thread package for target GCC],,
-enable_threads='')
-# Save in case it gets overwritten in config.gcc
-enable_threads_flag=$enable_threads
+[enable_threads=''])
AC_ARG_ENABLE(objc-gc,
[ --enable-objc-gc enable the use of Boehm's garbage collector with
[onestep=""])
AC_SUBST(onestep)
+# Sanity check enable_languages in case someone does not run the toplevel
+# configure # script.
+AC_ARG_ENABLE(languages,
+[ --enable-languages=LIST specify which front-ends to build],
+[case ,${enable_languages}, in
+ ,,|,yes,)
+ # go safe -- we cannot be much sure without the toplevel
+ # configure's
+ # analysis of which target libs are present and usable
+ enable_languages=c
+ ;;
+ *,all,*)
+ AC_MSG_ERROR([only the toplevel supports --enable-languages=all])
+ ;;
+ *,c,*)
+ ;;
+ *)
+ enable_languages=c,${enable_languages}
+ ;;
+esac],
+[enable_languages=c])
+
+subdirs=
+for lang in ${srcdir}/*/config-lang.in
+do
+ case $lang in
+ # The odd quoting in the next line works around
+ # an apparent bug in bash 1.12 on linux.
+changequote(,)dnl
+ ${srcdir}/[*]/config-lang.in) ;;
+ *)
+ lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
+ if test "x$lang_alias" = x
+ then
+ echo "$lang doesn't set \$language." 1>&2
+ exit 1
+ fi
+ case ",$enable_languages," in
+ *,$lang_alias,*)
+ subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`" ;;
+ esac
+ ;;
+changequote([,])dnl
+ esac
+done
+
+
# -------------------------
# Checks for other programs
# -------------------------
# How about lex?
dnl Don't use AC_PROG_LEX; we insist on flex.
dnl LEXLIB is not useful in gcc.
-if test -f $srcdir/../flex/skel.c; then
+if test x${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)
# Bison?
# The -L switch is so bison can find its skeleton file.
-if test -f $srcdir/../bison/bison.simple; then
+if test x${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)
# ---------
# Check if a valid thread package
-case ${enable_threads_flag} in
+case ${enable_threads} in
"" | no)
# No threads
target_thread_file='single'
;;
aix | dce | gnat | irix | posix | rtems | \
single | solaris | vxworks | win32 )
- target_thread_file=${enable_threads_flag}
+ target_thread_file=${enable_threads}
;;
*)
- echo "${enable_threads_flag} is an unknown thread package" 1>&2
+ echo "${enable_threads} is an unknown thread package" 1>&2
exit 1
;;
esac
extra_headers_list="${extra_headers_list} \$(srcdir)/config/${cpu_type}/${file}"
done
+# Define collect2 in Makefile.
+case $host_can_use_collect2 in
+ no) collect2= ;;
+ *) collect2='collect2$(exeext)' ;;
+esac
+AC_SUBST([collect2])
+
# Add a definition of USE_COLLECT2 if system wants one.
case $use_collect2 in
no) use_collect2= ;;
*)
host_xm_defines="${host_xm_defines} USE_COLLECT2"
xm_defines="${xm_defines} USE_COLLECT2"
+ case $host_can_use_collect2 in
+ no)
+ AC_MSG_ERROR([collect2 is required but cannot be built on this system])
+ ;;
+ esac
;;
esac
changequote(,)dnl
i[34567]86-*-* | x86_64-*-*)
changequote([,])dnl
+ case $target_os in
+ cygwin* | pe | mingw32*)
+ # Used for DWARF 2 in PE
+ gcc_GAS_CHECK_FEATURE([.secrel32 relocs],
+ gcc_cv_as_ix86_pe_secrel32,
+ [2,15,91],,
+[.text
+foo: nop
+.data
+ .secrel32 foo],
+ [if test x$gcc_cv_ld != x \
+ && $gcc_cv_ld -o conftest conftest.o > /dev/null 2>&1; then
+ gcc_cv_as_ix86_pe_secrel32=yes
+ fi
+ rm -f conftest],
+ [AC_DEFINE(HAVE_GAS_PE_SECREL32_RELOC, 1,
+ [Define if your assembler and linker support 32-bit section relative relocs via '.secrel32 label'.])])
+ ;;
+ esac
+
gcc_GAS_CHECK_FEATURE([filds and fists mnemonics],
gcc_cv_as_ix86_filds_fists,
[2,9,0],, [filds mem; fists mem],,
# UNSORTED
# --------
+AC_CACHE_CHECK(linker --as-needed support,
+gcc_cv_ld_as_needed,
+[gcc_cv_ld_as_needed=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 \
+ && test $in_tree_ld_is_elf = yes; then
+ gcc_cv_ld_as_needed=yes
+ fi
+elif test x$gcc_cv_ld != x; then
+ # Check if linker supports --as-needed and --no-as-needed options
+ if $gcc_cv_ld --help 2>/dev/null | grep as-needed > /dev/null; then
+ gcc_cv_ld_as_needed=yes
+ fi
+fi
+])
+if test x"$gcc_cv_ld_as_needed" = xyes; then
+ AC_DEFINE(HAVE_LD_AS_NEEDED, 1,
+[Define if your linker supports --as-needed and --no-as-needed options.])
+fi
+
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",
[Define to PREFIX/include if cpp should also search that directory.])
fi
-# Figure out what language subdirectories are present.
-# Look if the user specified --enable-languages="..."; if not, use
-# the environment variable $LANGUAGES if defined. $LANGUAGES might
-# go away some day.
-# NB: embedded tabs in this IF block -- do not untabify
-if test x"${enable_languages+set}" != xset; then
- if test x"${LANGUAGES+set}" = xset; then
- enable_languages="${LANGUAGES}"
- AC_MSG_WARN([setting LANGUAGES is deprecated, use --enable-languages instead])
-
- else
- enable_languages=all
- fi
-else
- if test x"${enable_languages}" = x \
- || test x"${enable_languages}" = xyes;
- then
- AC_MSG_ERROR([--enable-languages needs at least one language argument])
- fi
-fi
-enable_languages=`echo "${enable_languages}" | sed -e 's/[[ ,]][[ ,]]*/,/g' -e 's/,$//'`
-
-# First scan to see if an enabled language requires some other language.
-# We assume that a given config-lang.in will list all the language
-# front ends it requires, even if some are required indirectly.
-for lang in ${srcdir}/*/config-lang.in
-do
- case $lang in
- # The odd quoting in the next line works around
- # an apparent bug in bash 1.12 on linux.
-changequote(,)dnl
- ${srcdir}/[*]/config-lang.in)
- ;;
- *)
- lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
- this_lang_requires=`sed -n -e 's,^lang_requires=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^lang_requires=\([^ ]*\).*$,\1,p' $lang`
- for other in $this_lang_requires
- do
- case ,${enable_languages}, in
- *,$other,*)
- ;;
- *,all,*)
- ;;
- *,$lang_alias,*)
- enable_languages="$enable_languages,$other"
- ;;
- esac
- done
- ;;
-changequote([,])dnl
- esac
-done
-
-expected_languages=`echo ,${enable_languages}, | sed -e 's:,: :g' -e 's: *: :g' -e 's: *: :g' -e 's:^ ::' -e 's: $::'`
-found_languages=
-subdirs=
-for lang in ${srcdir}/*/config-lang.in
-do
- case $lang in
- # The odd quoting in the next line works around
- # an apparent bug in bash 1.12 on linux.
-changequote(,)dnl
- ${srcdir}/[*]/config-lang.in) ;;
- *)
- lang_alias=`sed -n -e 's,^language=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^language=\([^ ]*\).*$,\1,p' $lang`
- this_lang_libs=`sed -n -e 's,^target_libs=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^target_libs=\([^ ]*\).*$,\1,p' $lang`
- build_by_default=`sed -n -e 's,^build_by_default=['"'"'"'"]\(.*\)["'"'"'"'].*$,\1,p' -e 's,^build_by_default=\([^ ]*\).*$,\1,p' $lang`
- if test "x$lang_alias" = x
- then
- echo "$lang doesn't set \$language." 1>&2
- exit 1
- fi
- case ${build_by_default},${enable_languages}, in
- *,$lang_alias,*) add_this_lang=yes ;;
- no,*) add_this_lang=no ;;
- *,all,*) add_this_lang=yes ;;
- *) add_this_lang=no ;;
- esac
- found_languages="${found_languages} ${lang_alias}"
- if test x"${add_this_lang}" = xyes; then
- case $lang in
- ${srcdir}/ada/config-lang.in)
- if test x$have_gnat = xyes ; then
- subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
- fi
- ;;
- *)
- subdirs="$subdirs `echo $lang | sed -e 's,^.*/\([^/]*\)/config-lang.in$,\1,'`"
- ;;
- esac
- fi
- ;;
-changequote([,])dnl
- esac
-done
-
-missing_languages=
-for expected_language in ${expected_languages} ..
-do
- if test "${expected_language}" != ..; then
- missing_language="${expected_language}"
- if test "${expected_language}" = "c" \
- || test "${expected_language}" = "all"; then
- missing_language=
- fi
- for found_language in ${found_languages} ..
- do
- if test "${found_language}" != ..; then
- if test "${expected_language}" = "${found_language}"; then
- missing_language=
- fi
- fi
- done
- if test "x${missing_language}" != x; then
- missing_languages="${missing_languages} ${missing_language}"
- fi
- fi
-done
-
-if test "x$missing_languages" != x; then
- AC_MSG_ERROR([
-The following requested languages were not found:${missing_languages}
-The following languages were available: c${found_languages}])
-fi
-
# Find out what GC implementation we want, or may, use.
AC_ARG_WITH(gc,
[ --with-gc={page,zone} choose the garbage collection mechanism to use
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($with_libbanshee)
+
+AC_SUBST(ANDER)
+AC_SUBST(BANSHEEINC)
+AC_SUBST(BANSHEELIB)
+
# --------------
# Language hooks
# --------------
all_boot_languages=
all_compilers=
all_stagestuff=
-all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders'
+all_outputs='Makefile fixinc/Makefile gccbug mklibgcc mkheaders libada-mk'
# List of language makefile fragments.
all_lang_makefrags=
# List of language subdirectory makefiles. Deprecated.
fi
fi
+AC_ARG_VAR(GMPLIBS,[How to link GMP])
+AC_ARG_VAR(GMPINC,[How to find GMP include files])
+
# Configure the subdirectories
# AC_CONFIG_SUBDIRS($subdirs)
projects / thirdparty / gcc.git / blobdiff