Re: [patches] Use a compile-time test for -fstack-protector

["Joseph S. Myers" <joseph@xxxxxxxxxxxxxxxx>]

On Sun, 8 Nov 2009, Thomas Schwinge wrote:

>  if AC_TRY_COMMAND([${CC-cc} $CFLAGS $CPPFLAGS $LDFLAGS -Werror -fstack-protector
> -			    -o conftest conftest.c 1>&AS_MESSAGE_LOG_FD])
> +			    -o /dev/null -c -x c /dev/null 1>&AS_MESSAGE_LOG_FD])

Does this still work if you remove $LDFLAGS from the compilation line?  
It's generally only included in link tests, and some GCC versions 
(including at least 4.1, which is supported for building EGLIBC) give 
warnings when -Wl options (which could be in $LDFLAGS) are used when not 
linking.  As this is just testing exit status and -Werror doesn't act on 
that warning, this *shouldn't* cause problems - nevertheless, it seems 
better to remove $LDFLAGS when making it no longer a link test.

-- 
Joseph S. Myers
joseph@xxxxxxxxxxxxxxxx