X-Git-Url: https://erislabs.net/gitweb/?a=blobdiff_plain;f=m4%2Fextern-inline.m4;h=600c8d3fa17a8d89a14d583aaec97c929807672f;hb=03ea4328ae1ea7e985f7fd9a42ebf77bc64bd47c;hp=c80d546c58aa63db635ead9a42877ec5d5199594;hpb=42d0be9fcf58e6574c4bab7322c8909afe2ff25c;p=gnulib.git

diff --git a/m4/extern-inline.m4 b/m4/extern-inline.m4
index c80d546c5..600c8d3fa 100644
--- a/m4/extern-inline.m4
+++ b/m4/extern-inline.m4
@@ -10,30 +10,47 @@ AC_DEFUN([gl_EXTERN_INLINE],
   AC_REQUIRE([AC_C_INLINE])
   AH_VERBATIM([extern_inline],
 [/* _GL_INLINE is a portable alternative to ISO C99 plain 'inline'.
-    _GL_EXTERN_INLINE is a portable alternative to 'extern linline'.
-    _GL_INLINE_HEADER_BEGIN contains useful stuff to put
-      in an include file, before uses of _GL_INLINE.
-      It suppresses GCC's bogus "no previous prototype for 'FOO'" diagnostic,
-      when FOO is an inline function in the header; see
-      <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54113>.
-    _GL_INLINE_HEADER_END contains useful stuff to put
-      in the same include file, after uses of _GL_INLINE.  */
-#if __GNUC__ ? __GNUC_STDC_INLINE__ : 199901L <= __STDC_VERSION__
+   _GL_EXTERN_INLINE is a portable alternative to 'extern inline'.
+   _GL_INLINE_HEADER_BEGIN contains useful stuff to put
+     in an include file, before uses of _GL_INLINE.
+     It suppresses GCC's bogus "no previous prototype for 'FOO'" diagnostic,
+     when FOO is an inline function in the header; see
+     <http://gcc.gnu.org/bugzilla/show_bug.cgi?id=54113>.
+   _GL_INLINE_HEADER_END contains useful stuff to put
+     in the same include file, after uses of _GL_INLINE.  */
+#if (__GNUC__ \
+     ? defined __GNUC_STDC_INLINE__ && __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\"")
-#  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
 # endif
+# define _GL_EXTERN_INLINE extern
 #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 defined __GNUC_STDC_INLINE__ && __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])