[Buildroot] [PATCH v4] gcc: explicitly use C{XX}FLAGS_FOR_TARGET instead of --enable-target-optspace

[Alexey Brodkin]

Hi Thomas,

On Mon, 2014-09-08 at 09:53 +0400, Alexey Brodkin wrote:
> Hi Thomas,
> 
> On Mon, 2014-09-01 at 11:55 +0400, Alexey Brodkin wrote:
> > From: Alexey Brodkin <Alexey.Brodkin at synopsys.com>
> > 
> > The gcc.mk file is passing --enable-target-optspace to gcc configure
> > script, to ask for space-optimized (-Os) target libraries. However,
> > passing this option has the effect of overriding any custom
> > CFLAGS_FOR_TARGET or CXXFLAGS_FOR_TARGET values that may be passed.
> > 
> > These are some situations when it is required to pass custom flags on buildong
> > of libgcc:
> >  * Default flags "-g -Os" lead to build isses as with PowerPC on gcc 4.5
> > (https://gcc.gnu.org/bugzilla/show_bug.cgi?id=43810)
> >  * Particular CPU requires specific instructions for HW support
> >  * Deep optimizations
> > 
> > Signed-off-by: Alexey Brodkin <abrodkin at synopsys.com>
> > 
> > Cc: Anton Kolesov <akolesov at synopsys.com>
> > Cc: Thomas Petazzoni <thomas.petazzoni at free-electrons.com>
> > Cc: Peter Korsgaard <peter at korsgaard.com>
> > Cc: Gustavo Zacarias <gustavo at zacarias.com.ar>
> > ---
> > 
> > Compared to v3 use "=" instead of ":=" which is not actually required here.
> 
> I'm wondering if this version is fine and we may go ahead an apply it?

Please treat this as a polite reminder about this pending patch.

Regards,
Alexey