[Buildroot] [PATCH] elfutils: fix sparc64 build, -fPIC required

[Waldemar Brodkorb <wbx@openadk.org>]

Hi Thomas,
Thomas Petazzoni wrote,

> Dear Waldemar Brodkorb,
> 
> On Tue, 3 Nov 2015 18:18:32 +0100, Waldemar Brodkorb wrote:
> > Fixes following autobuild errors:
> > http://autobuild.buildroot.net/results/82cc7766d2c805146e94baf82a24d1002f56593d/
> > http://autobuild.buildroot.net/results/ca4ca362581ee0111cba389d1afbff287692c21b/
> > 
> > Signed-off-by: Waldemar Brodkorb <wbx@openadk.org>
> > ---
> >  package/elfutils/elfutils.mk |    5 +++++
> >  1 file changed, 5 insertions(+)
> > 
> > diff --git a/package/elfutils/elfutils.mk b/package/elfutils/elfutils.mk
> > index 838c3b8..261849a 100644
> > --- a/package/elfutils/elfutils.mk
> > +++ b/package/elfutils/elfutils.mk
> > @@ -21,6 +21,11 @@ ELFUTILS_CONF_ENV += \
> >  	CFLAGS="$(filter-out -D_FILE_OFFSET_BITS=64,$(TARGET_CFLAGS))" \
> >  	CPPFLAGS="$(filter-out -D_FILE_OFFSET_BITS=64,$(TARGET_CPPFLAGS))"
> >  
> > +# sparc64 needs -fPIC instead of -fpic
> > +ifeq ($(BR2_sparc64),y)
> > +ELFUTILS_CONF_ENV += CFLAGS="$(filter-out -D_FILE_OFFSET_BITS=64,$(TARGET_CFLAGS)) -fPIC"
> 
> I don't like the duplication of the _FILE_OFFSET_BITS dance. Can you
> introduce an ELFUTILS_CFLAGS instead ?

Okay, I did know you wouldn't like it ;)
 
> Also, for libpcap, -fPIC is needed instead of -fpic for both microblaze
> and sparc64. But for elfutils, -fPIC is only needed for sparc64 ? I
> just tested a quick build of elfutils on microblaze, and it indeed
> works without any change.
> 
> Do you have any clue why?

No idea, sorry.

best regards
 Waldemar