* configure.in (libc_cv_gnu89_inline): Test for -fgnu89-inline.

	* config.make.in (gnu89-inline-CFLAGS): New variable.
	* Makeconfig (CFLAGS): Use $(gnu89-inline-CFLAGS) together with
	-std=gnu99.
	* misc/sys/cdefs.h (__extern_inline, __extern_always_inline): Define.
	* argp/argp.h: Use it.
	* bits/mathinline.h: Likewise.
	* bits/sigset.h: Likewise.
	* bits/string.h: Likewise.
	* ctype/ctype.h: Likewise.
	* hurd/hurd.h: Likewise.
	* hurd/hurd/fd.h: Likewise.
	* hurd/hurd/port.h: Likewise.
	* hurd/hurd/signal.h: Likewise.
	* hurd/hurd/threadvar.h: Likewise.
	* hurd/hurd/userlink.h: Likewise.
	* io/sys/stat.h: Likewise.
	* libio/bits/stdio.h: Likewise.
	* libio/bits/stdio2.h: Likewise.
	* mach/lock-intern.h: Likewise.
	* mach/mach/mig_support.h: Likewise.
	* math/bits/cmathcalls.h: Likewise.
	* posix/bits/unistd.h: Likewise.
	* socket/bits/socket2.h: Likewise.
	* stdlib/bits/stdlib.h: Likewise.
	* stdlib/stdlib.h: Likewise.
	* string/argz.h: Likewise.
	* string/bits/string2.h: Likewise.
	* string/bits/string3.h: Likewise.
	* sysdeps/alpha/fpu/bits/mathinline.h: Likewise.
	* sysdeps/generic/inttypes.h: Likewise.
	* sysdeps/generic/machine-lock.h: Likewise.
	* sysdeps/generic/machine-sp.h: Likewise.
	* sysdeps/i386/fpu/bits/mathinline.h: Likewise.
	* sysdeps/i386/i486/bits/string.h: Likewise.
	* sysdeps/ia64/fpu/bits/mathinline.h: Likewise.
	* sysdeps/mach/alpha/machine-lock.h: Likewise.
	* sysdeps/mach/alpha/machine-sp.h: Likewise.
	* sysdeps/mach/i386/machine-lock.h: Likewise.
	* sysdeps/mach/powerpc/machine-lock.h: Likewise.
	* sysdeps/mach/powerpc/machine-sp.h: Likewise.
	* sysdeps/powerpc/fpu/bits/mathinline.h: Likewise.
	* sysdeps/s390/bits/string.h: Likewise.
	* sysdeps/s390/fpu/bits/mathinline.h: Likewise.
	* sysdeps/sparc/fpu/bits/mathinline.h: Likewise.
	* sysdeps/unix/bsd/bsd4.4/bits/socket.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/sigset.h: Likewise.
	* sysdeps/unix/sysv/linux/bits/socket.h: Likewise.
	* sysdeps/unix/sysv/linux/sys/sysmacros.h: Likewise.
	* sysdeps/x86_64/fpu/bits/mathinline.h: Likewise.
	* wcsmbs/bits/wchar2.h: Likewise.
	* wcsmbs/wchar.h: Likewise.
	* stdlib/gmp.h: Likewise.  Include <features.h> to get
	__extern_inline definition.

	* locale/programs/ld-ctype.c (find_translit): Return NULL if ctype is
	NULL.

1 files changed, 24 insertions, 0 deletions

diff --git a/configure.in b/configure.in
index 71ceb04b33..baf37598b2 100644
--- a/configure.in
+++ b/configure.in
@@ -1641,6 +1641,30 @@ fi
 rm -f conftest*])
 AC_SUBST(libc_cv_ssp)
 
+AC_CACHE_CHECK(for -fgnu89-inline, libc_cv_gnu89_inline, [dnl
+cat > conftest.c <<EOF
+int foo;
+#ifdef __GNUC_GNU_INLINE__
+main () { return 0;}
+#else
+#error
+#endif
+EOF
+if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -std=gnu99 -fgnu89-inline
+			    -o conftest conftest.c 1>&AS_MESSAGE_LOG_FD])
+then
+  libc_cv_gnu89_inline=yes
+else
+  libc_cv_gnu89_inline=no
+fi
+rm -f conftest*])
+if test $libc_cv_gnu89_inline = yes; then
+  libc_cv_gnu89_inline=-fgnu89-inline
+else
+  libc_cv_gnu89_inline=
+fi
+AC_SUBST(libc_cv_gnu89_inline)
+
 if test $elf != yes; then
   AC_CACHE_CHECK(for .init and .fini sections, libc_cv_have_initfini,
 		 [AC_TRY_COMPILE(, [asm (".section .init");