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|
dnl Process this file with autoconf to produce a configure script.
AC_PREREQ(2.59)
AC_INIT
AC_CONFIG_SRCDIR([gold.cc])
AC_CANONICAL_TARGET
AM_INIT_AUTOMAKE(gold, 0.1)
AM_CONFIG_HEADER(config.h:config.in)
AC_ARG_WITH(sysroot,
[ --with-sysroot[=DIR] search for usr/lib et al within DIR],
[sysroot=$withval], [sysroot=no])
if test "$sysroot" = "yes"; then
sysroot='${exec_prefix}/${target_alias}/sys-root'
elif test "$sysroot" = "no"; then
sysroot=
fi
sysroot_relocatable=0
if test -n "$sysroot"; then
case "sysroot" in
"${prefix}" | "${prefix}/"* | \
"${exec_prefix}" | "${exec_prefix}/"* | \
'${prefix}' | '${prefix}/'*| \
'${exec_prefix}' | '${exec_prefix}/'*)
sysroot_relocatable=1
;;
esac
fi
AC_DEFINE_UNQUOTED(TARGET_SYSTEM_ROOT, "$sysroot",
[System root for target files])
AC_DEFINE_UNQUOTED(TARGET_SYSTEM_ROOT_RELOCATABLE, $sysroot_relocatable,
[Whether the system root can be relocated])
AC_ARG_ENABLE([targets],
[ --enable-targets alternative target configurations],
[case "${enableval}" in
yes | "")
AC_MSG_ERROR([--enable-targets option must specify target names or 'all'])
;;
no)
enable_targets=
;;
*)
enable_targets=$enableval
;;
esac],
[# For now, enable all targets by default
enable_targets=all
])
# Canonicalize the enabled targets.
if test -n "$enable_targets"; then
for targ in `echo $enable_targets | sed -e 's/,/ /g'`; do
result=`$ac_config_sub $targ 2>/dev/null`
if test -n "$result"; then
canon_targets="$canon_targets $result"
else
# Permit unrecognized target names, like "all".
canon_targets="$canon_targets $targ"
fi
done
fi
# See which specific instantiations we need.
targetobjs=
all_targets=
for targ in $target $canon_targets; do
targ_32_little=
targ_32_big=
targ_64_little=
targ_64_big=
if test "$targ" = "all"; then
targ_32_little=yes
targ_32_big=yes
targ_64_little=yes
targ_64_big=yes
all_targets=yes
else
case "$targ" in
i?86-*)
targ_32_little=yes
targetobjs="$targetobjs i386.\$(OBJEXT)"
;;
x86_64-*)
targ_64_little=yes
targetobjs="$targetobjs x86_64.\$(OBJEXT)"
;;
*)
AC_MSG_ERROR("unsupported target $targ")
;;
esac
fi
done
if test -n "$targ_32_little"; then
AC_DEFINE(HAVE_TARGET_32_LITTLE, 1,
[Define to support 32-bit little-endian targets])
fi
if test -n "$targ_32_big"; then
AC_DEFINE(HAVE_TARGET_32_BIG, 1,
[Define to support 32-bit big-endian targets])
fi
if test -n "$targ_64_little"; then
AC_DEFINE(HAVE_TARGET_64_LITTLE, 1,
[Define to support 64-bit little-endian targets])
fi
if test -n "$targ_64_big"; then
AC_DEFINE(HAVE_TARGET_64_BIG, 1,
[Define to support 64-bit big-endian targets])
fi
if test -n "$all_targets"; then
TARGETOBJS='$(ALL_TARGETOBJS)'
else
TARGETOBJS="$targetobjs"
fi
AC_SUBST(TARGETOBJS)
AC_PROG_CC
AC_PROG_CXX
AC_PROG_YACC
AC_PROG_RANLIB
AC_PROG_INSTALL
AC_PROG_LN_S
ZW_GNU_GETTEXT_SISTER_DIR
AM_PO_SUBDIRS
AC_C_BIGENDIAN
AC_EXEEXT
AM_CONDITIONAL(NATIVE_LINKER,
test "x$target_alias" = "x" -o "x$host_alias" = "x$target_alias")
AM_CONDITIONAL(GCC, test "$GCC" = yes)
dnl Some architectures do not support taking pointers of functions
dnl defined in shared libraries except in -fPIC mode. We need to
dnl tell the unittest framework if we're compiling for one of those
dnl targets, so it doesn't try to run the tests that do that.
AM_CONDITIONAL(FN_PTRS_IN_SO_WITHOUT_PIC, [
case $target_cpu in
i?86) true;;
x86_64) false;;
*) true;;
esac])
dnl Test for __thread support.
AC_COMPILE_IFELSE([__thread int i = 1;], [tls=yes], [tls=no])
AM_CONDITIONAL(TLS, test "$tls" = "yes")
AM_BINUTILS_WARNINGS
WARN_CXXFLAGS=`echo ${WARN_CFLAGS} | sed -e 's/-Wstrict-prototypes//' -e 's/-Wmissing-prototypes//'`
AC_SUBST(WARN_CXXFLAGS)
dnl Force support for large files by default. This may need to be
dnl host dependent. If build == host, we can check getconf LFS_CFLAGS.
LFS_CXXFLAGS="-D_LARGEFILE_SOURCE -D_FILE_OFFSET_BITS=64"
AC_SUBST(LFS_CXXFLAGS)
AC_REPLACE_FUNCS(pread)
AC_LANG_PUSH(C++)
AC_CHECK_HEADERS(tr1/unordered_set tr1/unordered_map)
AC_CHECK_HEADERS(ext/hash_map ext/hash_set)
dnl Test whether the compiler can specify a member templates to call.
AC_COMPILE_IFELSE([
class c { public: template<int i> void fn(); };
template<int i> void foo(c cv) { cv.fn<i>(); }
template void foo<1>(c cv);],
[AC_DEFINE(HAVE_MEMBER_TEMPLATE_SPECIFICATIONS, [],
[Whether the C++ compiler can call a template member with no arguments])])
AC_LANG_POP(C++)
AM_MAINTAINER_MODE
AC_OUTPUT(Makefile testsuite/Makefile po/Makefile.in:po/Make-in)
|
