[Buildroot] [PATCH] ruby: fix 'pcrel too far' build problem on SuperH architectures

[Thomas Petazzoni]

Dear Thomas De Schampheleire,

On Sun, 13 Oct 2013 09:44:36 +0200, Thomas De Schampheleire wrote:

> +# With some SuperH toolchains (like Sourcery CodeBench 2012.09), ruby fails to
> +# build with 'pcrel too far'. This seems to be caused by the -Os option we pass
> +# by default. To fix the problem, use standard -O2 optimization instead.
> +ifeq ($(BR2_sh)$(BR2_sh64),y)
> +TARGET_CFLAGS += -O2
> +endif

I don't think it's the right way of fixing the problem. This is going to
affect the CFLAGS of *all* packages. You shouldn't change
TARGET_CFLAGS, but instead do:

RUBY_CONF_ENV += CFLAGS="$(TARGET_CFLAGS) -O2"

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