[Buildroot] [PATCH] gcc: use generic infrastructure for patches

[Thomas Petazzoni <thomas.petazzoni@free-electrons.com>]

Dear Arnout Vandecappelle (Essensium/Mind),

On Wed,  6 Nov 2013 23:59:55 +0100, Arnout Vandecappelle
(Essensium/Mind) wrote:

>  package/gcc/gcc-final/4.2.2-avr32-2.1.5          | 1 +
>  package/gcc/gcc-final/4.3.6                      | 1 +
>  package/gcc/gcc-final/4.4.7                      | 1 +
>  package/gcc/gcc-final/4.5.4                      | 1 +
>  package/gcc/gcc-final/4.6.4                      | 1 +
>  package/gcc/gcc-final/4.7.3                      | 1 +
>  package/gcc/gcc-final/4.8-arc                    | 1 +
>  package/gcc/gcc-final/4.8.2                      | 1 +

The only problem that I see with this symbolic link based solution is
that we will have to remember to add/update the three symbolic each
time we do a gcc version bump. If we forget to do so, then the build
will go on silently, but without having applied the patches.

I don't say this problem is a show-stopper, but it's a drawback of this
symbolic link solution, IMO.

>  define HOST_GCC_APPLY_POWERPC_PATCH
> -	support/scripts/apply-patches.sh $(@D) package/gcc/$(GCC_VERSION) powerpc-link-with-math-lib.patch.conditional
> +	if [ -e package/gcc/$(GCC_VERSION)/powerpc-link-with-math-lib.patch.conditional ]; then \
> +		support/scripts/apply-patches.sh $(@D) package/gcc/$(GCC_VERSION) powerpc-link-with-math-lib.patch.conditional; \
> +	fi

Why was adding the condition necessary?

Thanks!

Thomas
-- 
Thomas Petazzoni, CTO, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com