Suppress some gcc warnings in glibc header files.

diff --git a/ChangeLog b/ChangeLog
index 2f3243697d9b9ddf3eb0e4e4cad567ae2b76be3f..e4630394fab3deb666103572bb894dd840e6db59 100644 (file)
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,9 @@
+2007-02-19  Bruno Haible  <bruno@clisp.org>
+
+       * lib/stdlib_.h: Use "#pragma GCC system_header" to suppress some gcc
+       warnings.
+       Reported by Paul Eggert.
+
 2007-02-19  Jim Meyering  <jim@meyering.net>
 
        Don't use FD after a successful "fdopendir (fd)".
@@ -608,7 +614,8 @@
 
        * m4/javacomp.m4 (gt_JAVACOMP): Work around a 'tr' bug in coreutils
        5.2.1 and earlier, whereby \055 was treated just like the range
-       delimiter '-'.  Reported by Joel E. Denny <jdenny@ces.clemson.edu>.
+       delimiter '-'.
+       Reported by Joel E. Denny <jdenny@ces.clemson.edu>.
 
 2007-02-08  Bruno Haible  <bruno@clisp.org>
 

diff --git a/lib/stdlib_.h b/lib/stdlib_.h
index a48f94cdf20f98495277bb8b6682f6b69f878018..15ca39d8cdfb230e0d8b88b7b1ec338eb61c643c 100644 (file)
--- a/lib/stdlib_.h
+++ b/lib/stdlib_.h
@@ -18,12 +18,28 @@
 
 #if defined __need_malloc_and_calloc
 /* Special invocation convention inside glibc header files.  */
+
+/* This #pragma avoids a warning with "gcc -Wall" on some glibc systems
+   on which <stdlib.h> has an inappropriate declaration, see
+   <http://sourceware.org/bugzilla/show_bug.cgi?id=1079>.  */
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
 #include @ABSOLUTE_STDLIB_H@
+
 #else
 /* Normal invocation convention.  */
 #ifndef _GL_STDLIB_H
 #define _GL_STDLIB_H
 
+/* This #pragma avoids a warning with "gcc -Wall" on some glibc systems
+   on which <stdlib.h> has an inappropriate declaration, see
+   <http://sourceware.org/bugzilla/show_bug.cgi?id=1079>.  */
+#ifdef __GNUC__
+# pragma GCC system_header
+#endif
+
 #include @ABSOLUTE_STDLIB_H@