[PATCH] gcc-configure-target: Add --enable-dependency-tracking to EXTRA_OECONF

[PATCH] gcc-configure-target: Add --enable-dependency-tracking to EXTRA_OECONF

[Khem Raj]

Fixes errors seen while compiling gcc 4.8 for target, errors like

| /home/khem/work/angstrom/build/tmp-angstrom_next-eglibc/work-shared/gcc-4.8.0-r0/gcc-4.8.0/libatomic/cas_n.c:125:1: fatal error: opening dependency file .deps/cas_1_.lo.Ppo: No such file or directory

which are due to disabled dependency tracking but dependency files being still generated
while compiling libatomics.

Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
 meta/recipes-devtools/gcc/gcc-configure-target.inc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/meta/recipes-devtools/gcc/gcc-configure-target.inc b/meta/recipes-devtools/gcc/gcc-configure-target.inc
index 6cc374b..5f608d6 100644
--- a/meta/recipes-devtools/gcc/gcc-configure-target.inc
+++ b/meta/recipes-devtools/gcc/gcc-configure-target.inc
@@ -5,4 +5,4 @@ EXTRA_OECONF_PATHS = " \
     --with-sysroot=/ \
     --with-build-sysroot=${STAGING_DIR_TARGET} \
     --with-native-system-header-dir=${STAGING_DIR_TARGET}${target_includedir} \
-    --with-gxx-include-dir=${includedir}/c++/"
+    --with-gxx-include-dir=${includedir}/c++/ --enable-dependency-tracking"
-- 
1.8.1.2

Re: [PATCH] gcc-configure-target: Add --enable-dependency-tracking to EXTRA_OECONF

[Richard Purdie]

Hi Khem,

On Sat, 2013-05-04 at 23:24 -0700, Khem Raj wrote:
> Fixes errors seen while compiling gcc 4.8 for target, errors like
> 
> | /home/khem/work/angstrom/build/tmp-angstrom_next-eglibc/work-shared/gcc-4.8.0-r0/gcc-4.8.0/libatomic/cas_n.c:125:1: fatal error: opening dependency file .deps/cas_1_.lo.Ppo: No such file or directory
> 
> which are due to disabled dependency tracking but dependency files being still generated
> while compiling libatomics.
> 
> Signed-off-by: Khem Raj <raj.khem@gmail.com>
> ---
>  meta/recipes-devtools/gcc/gcc-configure-target.inc | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/meta/recipes-devtools/gcc/gcc-configure-target.inc b/meta/recipes-devtools/gcc/gcc-configure-target.inc
> index 6cc374b..5f608d6 100644
> --- a/meta/recipes-devtools/gcc/gcc-configure-target.inc
> +++ b/meta/recipes-devtools/gcc/gcc-configure-target.inc
> @@ -5,4 +5,4 @@ EXTRA_OECONF_PATHS = " \
>      --with-sysroot=/ \
>      --with-build-sysroot=${STAGING_DIR_TARGET} \
>      --with-native-system-header-dir=${STAGING_DIR_TARGET}${target_includedir} \
> -    --with-gxx-include-dir=${includedir}/c++/"
> +    --with-gxx-include-dir=${includedir}/c++/ --enable-dependency-tracking"

We keep occasionally seeing:

http://autobuilder.yoctoproject.org:8011/builders/nightly-mips-lsb/builds/310/steps/Building%20Images/logs/stdio

which is a failure in target gcc due to the use of the dependency
tracking. I think the dependency tracking code does have some kind of
races in it :(.

Do why know why we can't turn off the dependency tracking in libatomic?
Are there any upstream bug fixes for this?

Cheers,

Richard