* m4/extern-inline.m4 (gl_EXTERN_INLINE): Use pre-C99 GCC 'inline'
if available. This applies to GCC versions 2.7 through 4.2, or
when newer GCC is using -fgnu89-inline. The goal is to address
some of the performance issues mentioned by Bruno Haible in
<http://lists.gnu.org/archive/html/bug-gnulib/2012-08/msg00097.html>.
+2012-08-20 Paul Eggert <eggert@cs.ucla.edu>
+
+ extern-inline: support old GCC 'inline'
+ * m4/extern-inline.m4 (gl_EXTERN_INLINE): Use pre-C99 GCC 'inline'
+ if available. This applies to GCC versions 2.7 through 4.2, or
+ when newer GCC is using -fgnu89-inline. The goal is to address
+ some of the performance issues mentioned by Bruno Haible in
+ <http://lists.gnu.org/archive/html/bug-gnulib/2012-08/msg00097.html>.
+
2012-08-20 Eric Blake <eblake@redhat.com>
maint.mk: avoid redundant file name in message
2012-08-20 Eric Blake <eblake@redhat.com>
maint.mk: avoid redundant file name in message
#if __GNUC__ ? __GNUC_STDC_INLINE__ : 199901L <= __STDC_VERSION__
# define _GL_INLINE inline
# define _GL_EXTERN_INLINE extern inline
#if __GNUC__ ? __GNUC_STDC_INLINE__ : 199901L <= __STDC_VERSION__
# define _GL_INLINE inline
# define _GL_EXTERN_INLINE extern inline
-# if (__GNUC__ == 4 && 6 <= __GNUC_MINOR__) || 4 < __GNUC__
-# define _GL_INLINE_HEADER_BEGIN \
- _Pragma ("GCC diagnostic push") \
- _Pragma ("GCC diagnostic ignored \"-Wmissing-prototypes\"") \
- _Pragma ("GCC diagnostic ignored \"-Wmissing-declarations\"")
-# define _GL_INLINE_HEADER_END \
- _Pragma ("GCC diagnostic pop")
+#elif 2 < __GNUC__ + (7 <= __GNUC_MINOR__)
+# if __GNUC_GNU_INLINE__
+ /* __gnu_inline__ suppresses a GCC 4.2 diagnostic. */
+# define _GL_INLINE extern inline __attribute__ ((__gnu_inline__))
+# else
+# define _GL_INLINE extern inline
+# define _GL_EXTERN_INLINE extern
#else
# define _GL_INLINE static inline
# define _GL_EXTERN_INLINE static inline
#endif
#else
# define _GL_INLINE static inline
# define _GL_EXTERN_INLINE static inline
#endif
-#ifndef _GL_INLINE_HEADER_BEGIN
+#if 4 < __GNUC__ + (6 <= __GNUC_MINOR__)
+# if __GNUC_STDC_INLINE__
+# define _GL_INLINE_HEADER_CONST_PRAGMA
+# else
+# define _GL_INLINE_HEADER_CONST_PRAGMA \
+ _Pragma ("GCC diagnostic ignored \"-Wsuggest-attribute=const\"")
+# endif
+# define _GL_INLINE_HEADER_BEGIN \
+ _Pragma ("GCC diagnostic push") \
+ _Pragma ("GCC diagnostic ignored \"-Wmissing-prototypes\"") \
+ _Pragma ("GCC diagnostic ignored \"-Wmissing-declarations\"") \
+ _GL_INLINE_HEADER_CONST_PRAGMA
+# define _GL_INLINE_HEADER_END \
+ _Pragma ("GCC diagnostic pop")
+#else
# define _GL_INLINE_HEADER_BEGIN
# define _GL_INLINE_HEADER_END
#endif])
# define _GL_INLINE_HEADER_BEGIN
# define _GL_INLINE_HEADER_END
#endif])