--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,20 @@
+2007-10-13  Bruno Haible  <bruno@clisp.org>
+
+	Handle 'inline' change in gcc 4.3.0.
+	* lib/argp-fmtstream.h (argp_fmtstream_putc, argp_fmtstream_puts,
+	argp_fmtstream_write, argp_fmtstream_set_lmargin,
+	argp_fmtstream_set_rmargin, argp_fmtstream_set_wmargin,
+	argp_fmtstream_point): Disable 'extern' declaration if the function
+	definition is going to be provided inline.
+	(ARGP_FS_EI): If __GNUC_STDC_INLINE__ is defined, use the GNU C inline
+	semantics, not the ISO C99 inline semantics.
+	* lib/argp.h (argp_usage, _option_is_short, _option_is_end): Disable
+	'extern' declaration if the function definition is going to be provided
+	inline.
+	(ARGP_EI): Don't assume GNU C. If __GNUC_STDC_INLINE__ is defined, use
+	the GNU C inline semantics, not the ISO C99 inline semantics. With
+	GCC 4.2, avoid a warning.
+
 2007-10-13  Bruno Haible  <bruno@clisp.org>
 
 	* lib/freading.h (freading): Enable the use of __freading for

--- a/lib/argp-fmtstream.h
+++ b/lib/argp-fmtstream.h
@@ -1,5 +1,5 @@
 /* Word-wrapping and line-truncating streams.
-   Copyright (C) 1997, 2006 Free Software Foundation, Inc.
+   Copyright (C) 1997, 2006-2007 Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Miles Bader <miles@gnu.ai.mit.edu>.
 
@@ -134,6 +134,7 @@
 				      const char *__fmt, ...)
      __attribute__ ((__format__ (printf, 2, 3)));
 
+#if _LIBC || !defined __OPTIMIZE__
 extern int __argp_fmtstream_putc (argp_fmtstream_t __fs, int __ch);
 extern int argp_fmtstream_putc (argp_fmtstream_t __fs, int __ch);
 
@@ -144,6 +145,7 @@
 				      const char *__str, size_t __len);
 extern size_t argp_fmtstream_write (argp_fmtstream_t __fs,
 				    const char *__str, size_t __len);
+#endif
 
 /* Access macros for various bits of state.  */
 #define argp_fmtstream_lmargin(__fs) ((__fs)->lmargin)
@@ -153,6 +155,7 @@
 #define __argp_fmtstream_rmargin argp_fmtstream_rmargin
 #define __argp_fmtstream_wmargin argp_fmtstream_wmargin
 
+#if _LIBC || !defined __OPTIMIZE__
 /* Set __FS's left margin to LMARGIN and return the old value.  */
 extern size_t argp_fmtstream_set_lmargin (argp_fmtstream_t __fs,
 					  size_t __lmargin);
@@ -174,6 +177,7 @@
 /* Return the column number of the current output point in __FS.  */
 extern size_t argp_fmtstream_point (argp_fmtstream_t __fs);
 extern size_t __argp_fmtstream_point (argp_fmtstream_t __fs);
+#endif
 
 /* Internal routines.  */
 extern void _argp_fmtstream_update (argp_fmtstream_t __fs);
@@ -197,11 +201,24 @@
 #endif
 
 #ifndef ARGP_FS_EI
-# if __GNUC_GNU_INLINE__
-#  define ARGP_FS_EI extern inline __attribute__ ((__gnu_inline__))
-# elif __GNUC__
-#  define ARGP_FS_EI extern inline
+# ifdef __GNUC__
+   /* GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99
+      inline semantics, unless -fgnu89-inline is used.  It defines a macro
+      __GNUC_STDC_INLINE__ to indicate this situation or a macro
+      __GNUC_GNU_INLINE__ to indicate the opposite situation.
+      GCC 4.2 with -std=c99 or -std=gnu99 implements the GNU C inline
+      semantics but warns, unless -fgnu89-inline is used:
+        warning: C99 inline functions are not supported; using GNU89
+        warning: to disable this warning use -fgnu89-inline or the gnu_inline function attribute
+      It defines a macro __GNUC_GNU_INLINE__ to indicate this situation.  */
+#  if defined __GNUC_STDC_INLINE__ || defined __GNUC_GNU_INLINE__
+#   define ARGP_FS_EI extern inline __attribute__ ((__gnu_inline__))
+#  else
+#   define ARGP_FS_EI extern inline
+#  endif
 # else
+   /* With other compilers, assume the ISO C99 meaning of 'inline', if
+      the compiler supports 'inline' at all.  */
 #  define ARGP_FS_EI inline
 # endif
 #endif

--- a/lib/argp.h
+++ b/lib/argp.h
@@ -520,9 +520,11 @@
 			       FILE *__restrict __stream,
 			       unsigned int __flags);
 
+#if _LIBC || !defined __USE_EXTERN_INLINES
 /* Possibly output the standard usage message for ARGP to stderr and exit.  */
 extern void argp_usage (const struct argp_state *__state);
 extern void __argp_usage (const struct argp_state *__state);
+#endif
 
 /* If appropriate, print the printf string FMT and following args, preceded
    by the program name and `:', to stderr, and followed by a `Try ... --help'
@@ -551,6 +553,7 @@
 			    const char *__restrict __fmt, ...)
      __attribute__ ((__format__ (__printf__, 4, 5)));
 
+#if _LIBC || !defined __USE_EXTERN_INLINES
 /* Returns true if the option OPT is a valid short option.  */
 extern int _option_is_short (const struct argp_option *__opt) __THROW;
 extern int __option_is_short (const struct argp_option *__opt) __THROW;
@@ -559,6 +562,7 @@
    options array.  */
 extern int _option_is_end (const struct argp_option *__opt) __THROW;
 extern int __option_is_end (const struct argp_option *__opt) __THROW;
+#endif
 
 /* Return the input field for ARGP in the parser corresponding to STATE; used
    by the help routines.  */
@@ -579,7 +583,26 @@
 # endif
 
 # ifndef ARGP_EI
-#  define ARGP_EI extern __inline__
+#  ifdef __GNUC__
+    /* GCC 4.3 and above with -std=c99 or -std=gnu99 implements ISO C99
+       inline semantics, unless -fgnu89-inline is used.  It defines a macro
+       __GNUC_STDC_INLINE__ to indicate this situation or a macro
+       __GNUC_GNU_INLINE__ to indicate the opposite situation.
+       GCC 4.2 with -std=c99 or -std=gnu99 implements the GNU C inline
+       semantics but warns, unless -fgnu89-inline is used:
+         warning: C99 inline functions are not supported; using GNU89
+         warning: to disable this warning use -fgnu89-inline or the gnu_inline function attribute
+       It defines a macro __GNUC_GNU_INLINE__ to indicate this situation.  */
+#   if defined __GNUC_STDC_INLINE__ || defined __GNUC_GNU_INLINE__
+#    define ARGP_EI extern __inline__ __attribute__ ((__gnu_inline__))
+#   else
+#    define ARGP_EI extern __inline__
+#   endif
+#  else
+    /* With other compilers, assume the ISO C99 meaning of 'inline', if
+       the compiler supports 'inline' at all.  */
+#   define ARGP_EI inline
+#  endif
 # endif
 
 ARGP_EI void