* 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.

3 files changed, 5 insertions, 4 deletions

diff --git a/bits/mathinline.h b/bits/mathinline.h
index 5498af6b63..02ec21b438 100644
--- a/bits/mathinline.h
+++ b/bits/mathinline.h
@@ -1,6 +1,6 @@
 /* This file should provide inline versions of math functions.
 
-   Surround GCC-specific parts with #ifdef __GNUC__, and use `extern __inline'.
+   Surround GCC-specific parts with #ifdef __GNUC__, and use `__extern_inline'.
 
    This file should define __MATH_INLINES if functions are actually defined as
    inlines.  */
diff --git a/bits/sigset.h b/bits/sigset.h
index 5fc8692df0..d6f9311e71 100644
--- a/bits/sigset.h
+++ b/bits/sigset.h
@@ -1,5 +1,6 @@
 /* __sig_atomic_t, __sigset_t, and related definitions.  Generic/BSD version.
-   Copyright (C) 1991, 1992, 1994, 1996, 1997 Free Software Foundation, Inc.
+   Copyright (C) 1991, 1992, 1994, 1996, 1997, 2007
+   Free Software Foundation, Inc.
    This file is part of the GNU C Library.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -38,7 +39,7 @@ typedef unsigned long int __sigset_t;
 #define _SIGSET_H_fns 1
 
 #ifndef _EXTERN_INLINE
-# define _EXTERN_INLINE extern __inline
+# define _EXTERN_INLINE __extern_inline
 #endif
 
 /* Return a mask that includes SIG only.  The cast to `sigset_t' avoids
diff --git a/bits/string.h b/bits/string.h
index ad68b038b6..f8630d2c52 100644
--- a/bits/string.h
+++ b/bits/string.h
@@ -1,6 +1,6 @@
 /* This file should provide inline versions of string functions.
 
-   Surround GCC-specific parts with #ifdef __GNUC__, and use `extern __inline'.
+   Surround GCC-specific parts with #ifdef __GNUC__, and use `__extern_inline'.
 
    This file should define __STRING_INLINES if functions are actually defined
    as inlines.  */