[poky] [PATCH 1/7] elfutils: fix builds with gcc 4.6

[Martin Jansa]

On Fri, Apr 1, 2011 at 3:40 PM, Joshua Lock <josh at linux.intel.com> wrote:
> From: Joshua Lock <josh at linux.intel.com>
>
> gcc 4.6 (as used in Fedora 15) adds some extra warnings which are
> included with Werror. The new unused-but-set variable warning causes
> an error in libasm of elfutils. Work around this by removing
> unused-but-set from Werror.
>
> Signed-off-by: Joshua Lock <josh at linux.intel.com>
> ---
>  meta/recipes-devtools/elfutils/elfutils_0.148.bb |    4 ++++
>  1 files changed, 4 insertions(+), 0 deletions(-)
>
> diff --git a/meta/recipes-devtools/elfutils/elfutils_0.148.bb b/meta/recipes-devtools/elfutils/elfutils_0.148.bb
> index b2f700e..c395be8 100644
> --- a/meta/recipes-devtools/elfutils/elfutils_0.148.bb
> +++ b/meta/recipes-devtools/elfutils/elfutils_0.148.bb
> @@ -40,6 +40,10 @@ SRC_URI += "\
>
>  inherit autotools
>
> +# GCC 4.6.0 raises an unused-but-set warning in libasm, for now remove
> +# this warning from Werror
> +CFLAGS_virtclass-native += "-Wno-error=unused-but-set-variable"
> +
>  EXTRA_OECONF = "--program-prefix=eu-"

this breaks all other distros not yet using gcc-4.6..


configure:2892: checking whether the C compiler works
configure:2914: gcc -Wno-error=unused-but-set-variable
-isystem/OE/shr-core/tmp/sysroots/x86_64-linux/usr/include
-L/OE/shr-core/tmp/sysroots/x86_64-linux/usr/lib
-Wl,-rpath-link,/OE/shr-core/tmp/sysroots/x86_64-linux/usr/lib
-Wl,-rpath,/OE/shr-core/tmp/sysroots/x86_64-linux/usr/lib -Wl,-O1
conftest.c  >&5
cc1: error: -Werror=unused-but-set-variable: No option -Wunused-but-set-variable
configure:2918: $? = 1
configure:2956: result: no
configure: failed program was:
| /* confdefs.h */
| #define PACKAGE_NAME "Red Hat elfutils"
| #define PACKAGE_TARNAME "elfutils"
| #define PACKAGE_VERSION "0.148"
| #define PACKAGE_STRING "Red Hat elfutils 0.148"
| #define PACKAGE_BUGREPORT "http://bugzilla.redhat.com/bugzilla/"
| #define PACKAGE_URL ""
| #define PACKAGE "elfutils"
| #define VERSION "0.148"
| #define MODVERSION "Build on jama 2011-04-04T23:34:25+0200"
| /* end confdefs.h.  */
|
| int
| main ()
| {
|
|   ;
|   return 0;
| }
configure:2961: error: in
`/OE/shr-core/tmp/work/x86_64-linux/elfutils-native-0.148-r1/elfutils-0.148':
configure:2965: error: C compiler cannot create executables
See `config.log' for more details.

Regards,

>
>  do_configure_prepend() {
> --
> 1.7.4.1
>
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