Mercurial > gnulib
changeset 30345:4bae8f3c0ac2
Avoid gcc warnings because of #pragma GCC system_header on older gcc.
| author | Bruno Haible <bruno@clisp.org> |
|---|---|
| date | Sat, 18 Oct 2008 01:41:46 +0200 |
| parents | 202b27a5b8d3 |
| children | 3a2cbb16720d |
| files | ChangeLog m4/include_next.m4 |
| diffstat | 2 files changed, 15 insertions(+), 2 deletions(-) [+] |
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--- a/ChangeLog Fri Oct 17 13:43:21 2008 +0200 +++ b/ChangeLog Sat Oct 18 01:41:46 2008 +0200 @@ -1,3 +1,11 @@ +2008-10-17 Bruno Haible <bruno@clisp.org> + + Avoid gcc warnings because of #pragma GCC system_header on older gcc. + * m4/include_next.m4: Require autoconf >= 2.60. + (gl_INCLUDE_NEXT): Use #pragma GCC system_header only for GCC 3.0 or + newer. + Reported by Yoann Vandoorselaere <yoann.v@prelude-ids.com>. + 2008-10-17 Jim Meyering <meyering@redhat.com> ignore-value: don't depend on inline module
--- a/m4/include_next.m4 Fri Oct 17 13:43:21 2008 +0200 +++ b/m4/include_next.m4 Sat Oct 18 01:41:46 2008 +0200 @@ -1,4 +1,4 @@ -# include_next.m4 serial 8 +# include_next.m4 serial 9 dnl Copyright (C) 2006-2008 Free Software Foundation, Inc. dnl This file is free software; the Free Software Foundation dnl gives unlimited permission to copy and/or distribute it, @@ -6,6 +6,8 @@ dnl From Paul Eggert and Derek Price. +AC_PREREQ([2.60]) + dnl Sets INCLUDE_NEXT and PRAGMA_SYSTEM_HEADER. dnl dnl INCLUDE_NEXT expands to 'include_next' if the compiler supports it, or to @@ -59,7 +61,10 @@ if test $gl_cv_have_include_next = yes; then INCLUDE_NEXT=include_next if test -n "$GCC"; then - PRAGMA_SYSTEM_HEADER='#pragma GCC system_header' + dnl GCC 3.0 or newer supports #pragma GCC system_header. + PRAGMA_SYSTEM_HEADER='#if __GNUC__ >= 3 +#pragma GCC system_header +#endif' fi else INCLUDE_NEXT=include