-dnl Process this file with autoconf to produce a configure script.
-AC_REVISION([$Id$])
-AC_PREREQ(2.1)dnl dnl Minimum Autoconf version required.
+Dnl Process this file with autoconf to produce a configure script.
+AC_REVISION([$CVSid$])
+AC_PREREQ(2.10)dnl dnl Minimum Autoconf version required.
AC_INIT(features.h)
AC_CONFIG_HEADER(config.h)
gmp-srcdir = $withval" ;;
esac
])
+# Check for a --with-gettext argument and set gettext-srcdir in config.make.
+AC_ARG_WITH(gettext, dnl
+ --with-gettext=DIR find GNU gettext source code in DIR (not needed),
+ [dnl
+case "$with_gettext" in
+yes)
+ AC_MSG_ERROR(--with-gettext requires an argument; use --with-gettext=DIR) ;;
+''|no) ;;
+*)
+ config_vars="$config_vars
+gettext-srcdir = $withval" ;;
+esac
+])
+dnl Arguments to specify presence of other packages/features.
+AC_ARG_WITH(fp, dnl
+ --with-fp if using floating-point hardware [default=yes],
+ with_fp=$withval, with_fp=yes)
AC_ARG_WITH(gnu-binutils, dnl
--with-gnu-binutils if using GNU binutils (as and ld),
- gnu_binutils=yes, gnu_binutils=no)
+ gnu_binutils=$withval, gnu_binutils=no)
AC_ARG_WITH(gnu-ld, dnl
--with-gnu-ld if using GNU ld (in the binutils package),
- gnu_ld=yes, gnu_ld=no)
+ gnu_ld=$withval, gnu_ld=no)
AC_ARG_WITH(gnu-as, dnl
--with-gnu-as if using GNU as (in the binutils package),
- gnu_as=yes, gnu_as=no)
+ gnu_as=$withval, gnu_as=no)
test $gnu_binutils = yes && gnu_as=yes gnu_ld=yes
AC_ARG_WITH(elf, dnl
--with-elf if using the ELF object format,
- elf=yes, elf=no)
-AC_ARG_WITH(weak-symbols, dnl
- --with-weak-symbols if weak symbols are available in as and ld,
- weak=yes, weak=no)
+ elf=$withval, elf=no)
+
+AC_ARG_ENABLE(libio, dnl
+[ --enable-libio build in GNU libio instead of GNU stdio],
+ [if test $enableval = yes; then
+ stdio=libio
+ else
+ stdio=stdio
+ fi],
+ stdio=default)
+
+dnl Arguments to enable or disable building the shared, profiled, and
+dnl -fomit-frame-pointer libraries.
+AC_ARG_ENABLE(shared, dnl
+[ --enable-shared build shared library [default=yes if GNU ld & ELF]],
+ shared=$enableval, shared=default)
+AC_ARG_ENABLE(profile, dnl
+[ --enable-profile build profiled library [default=yes]],
+ profile=$enableval, profile=yes)
+AC_ARG_ENABLE(omitfp, dnl
+[ --enable-omitfp build undebuggable optimized library [default=no]],
+ omitfp=$enableval, omitfp=no)
AC_CANONICAL_HOST
# We keep the original values in `$config_*' and never modify them, so we
# $machine, $vendor, and $os, and changes them whenever convenient.
config_machine=$host_cpu config_vendor=$host_vendor config_os=$host_os
-sysdep_dir=$srcdir/sysdeps
-AC_MSG_CHECKING(sysdep dirs)
-AC_CACHE_VAL(libc_cv_sysdirs, [dnl
+# Some configurations imply other options.
+case "$host_os" in
+gnu* | linux* | bsd4.4* | netbsd* | freebsd*)
+ # These systems always use GNU tools.
+ gnu_ld=yes gnu_as=yes ;;
+esac
+case "$host_os" in
+gnu* | linux* | sysv4* | solaris2*)
+ # These systems always use the ELF format.
+ if test "$host_cpu" != alpha; then # Linux/Alpha is not fully ELF yet
+ elf=yes
+ fi
+ ;;
+esac
+
machine=$config_machine
vendor=$config_vendor
os=$config_os
# Expand the configuration machine name into a subdirectory by architecture
# type and particular chip.
case "$machine" in
-i[345]86)
- machine=i386/$machine ;;
-sparc[6789])
- machine=sparc/$machine ;;
-m68k)
- machine=m68k/m68020 ;;
-m680?0)
- machine=m68k/$machine ;;
-m88k)
- machine=m88k/m88100 ;;
-m88???)
- machine=m88k/$machine ;;
-mips64*)
- machine=mips/mips64/$machine ;;
-mips*)
- machine=mips/$machine ;;
+a29k | am29000) base_machine=a29k machine=a29k ;;
+alpha*) base_machine=alpha machine=alpha/$machine ;;
+hppa*) base_machine=hppa machine=hppa/$machine ;;
+i[345]86) base_machine=i386 machine=i386/$machine ;;
+m680?0) base_machine=m68k machine=m68k/$machine ;;
+m68k) base_machine=m68k machine=m68k/m68020 ;;
+m88???) base_machine=m88k machine=m88k/$machine ;;
+m88k) base_machine=m88k machine=m88k/m88100 ;;
+mips*) base_machine=mips machine=mips/$machine ;;
+mips64*) base_machine=mips64 machine=mips/mips64/$machine ;;
+sparc[6789]) base_machine=sparc machine=sparc/$machine ;;
+supersparc) base_machine=sparc machine=sparc/sparc8 ;;
esac
+changequote([,])dnl
+AC_SUBST(base_machine)
+# Compute the list of sysdep directories for this configuration.
+sysdep_dir=$srcdir/sysdeps
+AC_CACHE_CHECK(sysdep dirs, libc_cv_sysdirs, [dnl
+dnl We need to use [ and ] for other purposes for a while now.
+changequote(,)dnl
# Make sco3.2v4 become sco3.2.4 and sunos4.1.1_U1 become sunos4.1.1.U1.
os="`echo $os | sed 's/\([0-9A-Z]\)[v_]\([0-9A-Z]\)/\1.\2/g'`"
case "$os" in
gnu*)
base_os=mach/hurd ;;
-netbsd* | 386bsd*)
+netbsd* | 386bsd* | freebsd* | bsdi*)
base_os=unix/bsd/bsd4.4 ;;
-osf1* | sunos* | ultrix* | newsos* | dynix* | *bsd*)
+osf* | sunos* | ultrix* | newsos* | dynix* | *bsd*)
base_os=unix/bsd ;;
-linux* | sysv* | isc* | esix* | sco* | minix* | irix4*)
+sysv* | isc* | esix* | sco* | minix* | irix4* | linux*)
base_os=unix/sysv ;;
solaris[2-9]*)
base_os=unix/sysv/sysv4 ;;
while o=`echo $tail | sed 's/\.[^.]*$//'`; test $o != $tail; do
ostry="$ostry /$o"
tail=$o
-done
+done
o=`echo $tail | sed 's/[0-9]*$//'`
if test $o != $tail; then
ostry="$ostry /$o"
tail=$machine
while m=`echo $tail | sed 's@^\(.*\)/\([^/]*\)$@& \1@'`; test -n "$m"; do
set $m
+ # Prepend the machine's FPU directory unless --without-fp.
+ if test "$with_fp" = yes; then
+ mach="$mach /$1/fpu"
+ fi
mach="$mach /$1"
tail="$2"
done
for o in /$ostry ''; do
for m in $mach ''; do
try="$m0$b$v$o$m"
+ test -n "$enable_debug_configure" && echo "$0 [DEBUG]: try $try" >&2
if test -d $sysdep_dir$try; then
sysnames="$sysnames $try"
{ test -n "$o" || test -n "$b"; } && os_used=t
# We have now validated the configuration.
-# Remove the leading slashes.
-sysnames="`echo $sysnames | sed -e 's@^/@@' -e 's@ /@ @g'`"
-# Prepend the machine's FPU directory unless --without-fp.
-if test "$with_fp" = no; then
- fpu_dirs=
+# If using ELF, look for an `elf' subdirectory of each machine directory.
+# We prepend these rather than inserting them whereever the machine appears
+# because things specified by the machine's ELF ABI should override
+# OS-specific things, and should always be the same for any OS on the
+# machine (otherwise what's the point of an ABI?).
+if test "$elf" = yes; then
+ elf_dirs=
for m in $mach; do
- if test -d $sysdep_dir$m/fpu; then
- fpu_dirs="$fpu_dirs $m/fpu"
+ if test -d $sysdep_dir$m/elf; then
+ elf_dirs="$elf_dirs $m/elf"
fi
done
- sysnames="`echo $fpu_dirs | sed -e 's,^/,,' -e 's, /,,g'` $sysnames"
+ sysnames="`echo $elf_dirs | sed -e 's,^/,,' -e 's, /,,g'` $sysnames"
fi
+
+# Remove the leading slashes.
+sysnames="`echo $sysnames | sed -e 's@^/@@' -e 's@ /@ @g'`"
+
+
# Expand the list of system names into a full list of directories
# from each element's parent name and Implies file (if present).
set $sysnames
done
libc_cv_sysdirs="$sysnames"])
AC_SUBST(sysnames) sysnames="$libc_cv_sysdirs"
-AC_MSG_RESULT(${sysnames})
-
-case "$host_os" in
-gnu* | linux* | bsd4.4* | netbsd* | freebsd*)
- gnu_ld=yes gnu_as=yes
-esac
-case "$host_os" in
-gnu*elf* | linux*elf* | sysv4* | solaris2*)
- elf=yes
-esac
AC_PROG_INSTALL
if test "$INSTALL" = "${srcdir}/install-sh"; then
# The makefiles need to use a different form to find it in $srcdir.
INSTALL='$(..)./install-sh'
fi
+AC_PROG_LN_S
+AC_CHECK_PROGS(MSGFMT, msgfmt gmsgfmt, :)
-AC_PROG_CC
+AC_CHECK_TOOL(CC, gcc)
AC_PROG_CPP
-AC_CHECK_PROG(AR, ar, ar, ar)
-AC_PROG_RANLIB
+AC_CHECK_TOOL(AR, ar)
+AC_CHECK_TOOL(RANLIB, ranlib, :)
-AC_MSG_CHECKING(signed size_t type)
-AC_CACHE_VAL(libc_cv_signed_size_t, [dnl
+AC_CACHE_CHECK(for signed size_t type, libc_cv_signed_size_t, [dnl
echo '#include <stddef.h>
FOOBAR __SIZE_TYPE__ FOOBAR' > conftest.c
if eval "$ac_cpp conftest.c 2>/dev/null" \
libc_cv_signed_size_t=yes
fi
rm -f conftest*])
-AC_MSG_RESULT($libc_cv_signed_size_t)
if test $libc_cv_signed_size_t = yes; then
dnl Do this by hand instead of AC_DEFINE so can add #undef to avoid warnings.
cat >> confdefs.h <<\EOF
EOF
fi
-AC_MSG_CHECKING(libc-friendly stddef.h)
-AC_CACHE_VAL(libc_cv_friendly_stddef, [dnl
+AC_CACHE_CHECK(for libc-friendly stddef.h, libc_cv_friendly_stddef, [dnl
AC_TRY_COMPILE(dnl
[#define __need_size_t
#define __need_wchar_t
if (&size == NULL || &wchar == NULL) abort ();],
libc_cv_friendly_stddef=yes,
libc_cv_friendly_stddef=no)])
-AC_MSG_RESULT($libc_cv_friendly_stddef)
if test $libc_cv_friendly_stddef = yes; then
config_vars="$config_vars
override stddef.h = # The installed <stddef.h> seems to be libc-friendly."
fi
-AC_MSG_CHECKING(whether we need to use -P to assemble .S files)
-AC_CACHE_VAL(libc_cv_need_minus_P, [dnl
+AC_CACHE_CHECK(whether we need to use -P to assemble .S files,
+ libc_cv_need_minus_P, [dnl
cat > conftest.S <<EOF
#include "confdefs.h"
/* Nothing whatsoever. */
libc_cv_need_minus_P=yes
fi
rm -f conftest*])
-AC_MSG_RESULT($libc_cv_need_minus_P)
if test $libc_cv_need_minus_P = yes; then
config_vars="$config_vars
asm-CPPFLAGS = -P # The assembler can't grok cpp's # line directives."
fi
+AC_CACHE_CHECK(for assembler global-symbol directive,
+ libc_cv_asm_global_directive, [dnl
+libc_cv_asm_global_directive=UNKNOWN
+for ac_globl in .globl .global; do
+ cat > conftest.s <<EOF
+.text
+${ac_globl} foo
+foo: .long 0
+EOF
+ if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then
+ libc_cv_asm_global_directive=${ac_globl}
+ fi
+ rm -f conftest*
+ test $libc_cv_asm_global_directive != UNKNOWN && break
+done])
+if test $libc_cv_asm_global_directive = UNKNOWN; then
+ AC_MSG_ERROR(cannot determine asm global directive)
+else
+ AC_DEFINE_UNQUOTED(ASM_GLOBAL_DIRECTIVE, ${libc_cv_asm_global_directive})
+fi
+
+AC_CACHE_CHECK(for .set assembler directive, libc_cv_asm_set_directive, [dnl
+cat > conftest.s <<EOF
+.text
+foo: .long 0
+.set glibc_conftest_frobozz,foo
+$libc_cv_asm_global_directive glibc_conftest_frobozz
+EOF
+# The alpha-dec-osf1 assembler gives only a warning for `.set'
+# (but it doesn't work), so we must do a linking check to be sure.
+cat > conftest1.c <<\EOF
+extern int glibc_conftest_frobozz;
+main () { printf ("%d\n", glibc_conftest_frobozz); }
+EOF
+if ${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS \
+ -o conftest conftest.s conftest1.c 1>&AC_FD_CC 2>&AC_FD_CC; then
+ libc_cv_asm_set_directive=yes
+else
+ libc_cv_asm_set_directive=no
+fi
+rm -f conftest*])
+if test $libc_cv_asm_set_directive = yes; then
+ AC_DEFINE(HAVE_ASM_SET_DIRECTIVE)
+fi
+
+if test $elf != yes; then
+ AC_CACHE_CHECK(for .init and .fini sections, libc_cv_have_initfini,
+ [AC_TRY_COMPILE(, [asm (".section .init");
+ asm (".section .fini");
+ asm (".text");],
+ libc_cv_have_initfini=yes,
+ libc_cv_have_initfini=no)])
+ AC_SUBST(libc_cv_have_initfini)dnl
+ if test $libc_cv_have_initfini = yes; then
+ AC_DEFINE(HAVE_INITFINI)
+ fi
+fi
+
+if test $elf = yes; then
+ libc_cv_asm_underscores=no
+else
+ AC_CACHE_CHECK(for _ prefix on C symbol names, libc_cv_asm_underscores,
+ [AC_TRY_LINK([asm ("_glibc_foobar:");], [glibc_foobar ();],
+ libc_cv_asm_underscores=yes,
+ libc_cv_asm_underscores=no)])
+fi
+if test $libc_cv_asm_underscores = no; then
+ AC_DEFINE(NO_UNDERSCORES)
+fi
+
+if test $elf = yes; then
+ libc_cv_weak_symbols=yes
+ libc_cv_asm_weak_directive=yes
+ libc_cv_asm_weakext_directive=no
+else
+ AC_CACHE_CHECK(for assembler .weak directive, libc_cv_asm_weak_directive,
+ [dnl
+cat > conftest.s <<EOF
+.text
+${libc_cv_asm_global_directive} foo
+foo: .long 0
+.weak foo
+.weak bar; bar = foo
+EOF
+ if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then
+ libc_cv_asm_weak_directive=yes
+ else
+ libc_cv_asm_weak_directive=no
+ fi
+ rm -f conftest*])
+
+if test $libc_cv_asm_weak_directive = no; then
+ AC_CACHE_CHECK(for assembler .weakext directive,
+ libc_cv_asm_weakext_directive,
+ [dnl
+cat > conftest.s <<EOF
+.text
+${libc_cv_asm_global_directive} foo
+foo: .long 0
+.weakext foo
+.weakext bar, foo
+EOF
+ if ${CC-cc} $CFLAGS -c conftest.s 2>/dev/null; then
+ libc_cv_asm_weakext_directive=yes
+ else
+ libc_cv_asm_weakext_directive=no
+ fi
+ rm -f conftest*])
+
+ fi # no .weak
+fi # not ELF
+
+if test $libc_cv_asm_weak_directive = yes; then
+ AC_DEFINE(HAVE_ASM_WEAK_DIRECTIVE)
+elif test $libc_cv_asm_weakext_directive = yes; then
+ AC_DEFINE(HAVE_ASM_WEAKEXT_DIRECTIVE)
+fi
+
+AC_CACHE_CHECK(for ld --no-whole-archive, libc_cv_ld_no_whole_archive, [dnl
+cat > conftest.c <<\EOF
+main () { exit (0); }
+EOF
+if ${CC-cc} $CFLAGS -Wl,--no-whole-archive \
+ -o conftest conftest.c 2>/dev/null; then
+ libc_cv_ld_no_whole_archive=yes
+else
+ libc_cv_ld_no_whole_archive=no
+fi
+rm -f conftest*])
+AC_SUBST(libc_cv_ld_no_whole_archive)dnl
+
+### End of automated tests.
+### Now run sysdeps configure fragments.
+
# sysdeps configure fragments may set these with files to be linked below.
libc_link_dests=
libc_link_sources=
AC_MSG_RESULT(running configure fragment for $dir)
. $sysdep_dir/$dir/configure
fi
+[
if test -z "$uname"; then
- { test -r $sysdep_dir/$dir/uname.c || test -r $sysdep_dir/$dir/uname.S; } \
- && uname=$dir
+ if test -r $sysdep_dir/$dir/uname.c ||
+ test -r $sysdep_dir/$dir/uname.S ||
+ { test -r $sysdep_dir/$dir/syscalls.list &&
+ grep '^uname[ ]' $sysdep_dir/$dir/syscalls.list >/dev/null; }; then
+ uname=$dir
+ fi
fi
+]dnl
done
AC_LINK_FILES(`echo $libc_link_sources`, `echo $libc_link_dests`)
fi
])dnl
- AC_MSG_CHECKING(OS release for uname)
- AC_CACHE_VAL(libc_cv_uname_release, [dnl
+ AC_CACHE_CHECK(OS release for uname, libc_cv_uname_release, [dnl
AC_REQUIRE([LIBC_KERNEL_ID])dnl
changequote(,)dnl
kernel_release=`echo "$kernel_id" | sed 's/^[^0-9.]*\([0-9.]*\).*$/\1/'`
else
libc_cv_uname_release=unknown
fi])
- AC_MSG_RESULT($libc_cv_uname_release)
uname_release="$libc_cv_uname_release"
- AC_MSG_CHECKING(OS version for uname)
- AC_CACHE_VAL(libc_cv_uname_version, [dnl
+ AC_CACHE_CHECK(OS version for uname, libc_cv_uname_version, [dnl
AC_REQUIRE([LIBC_KERNEL_ID])dnl
changequote(,)dnl
kernel_version=`echo "$kernel_id" | sed 's/^[^#]*#\([0-9]*\).*$/\1/'`
else
libc_cv_uname_version=unknown
fi])
- AC_MSG_RESULT($libc_cv_uname_version)
uname_version="$libc_cv_uname_version"
AC_SUBST(uname_sysname) AC_SUBST(uname_release) AC_SUBST(uname_version)dnl
config_uname=
fi
-AC_SUBST(gnu_ld) AC_SUBST(gnu_as) AC_SUBST(elf) AC_SUBST(weak)
+AC_MSG_CHECKING(stdio selection)
+AC_SUBST(stdio)
+case $stdio in
+libio) AC_DEFINE(USE_IN_LIBIO) ;;
+default) stdio=stdio ;;
+esac
+AC_MSG_RESULT($stdio)
+
+AC_SUBST(gnu_ld) AC_SUBST(gnu_as) AC_SUBST(elf)
if test $gnu_ld = yes; then
AC_DEFINE(HAVE_GNU_LD)
fi
if test $elf = yes; then
AC_DEFINE(HAVE_ELF)
fi
-if test $weak = yes; then
- AC_DEFINE(HAVE_WEAK_SYMBOLS)
-fi
+AC_SUBST(shared)
+if test $shared = default; then
+ if test $gnu_ld = yes; then
+ shared=$elf
+ fi
+fi
+AC_SUBST(profile)
+AC_SUBST(omitfp)
if test "`(cd $srcdir; pwd)`" = "`pwd`"; then
config_makefile=
projects / platform / upstream / glibc.git / blobdiff