[test-suite] disable darwin -force_cpusubtype_ALL option for ppc64-elf-linux

[Bill Schmidt]

LGTM.  Thanks for taking care of this...

Bill

On Mon, 2013-03-18 at 08:47 -0500, Will Schmidt wrote:
> We occasionally see gcc throw some unrecognized command line option
> errors when working on the test suite on ppc64-elf-linux.
> 
> >  gcc: error: unrecognized command line option ‘-force_cpusubtype_ALL’
> >  make[4]: [Output/test1.llc] Error 1 (ignored)
> 
> The option is specified in Makefile.programs ; and per the comments
> there, it is a darwin specific flag.   Thus, should be disabled for
> Linux targets.
> 
> OK to commit?  
> 
> Thanks, 
> -Will
> 
> 
> 
> Index: Makefile.programs
> ===================================================================
> --- Makefile.programs	(revision 174442)
> +++ Makefile.programs	(working copy)
> @@ -377,8 +377,10 @@
> 
>  # On darwin, pass -force_cpusubtype_ALL to allow all ppc instructions.
>  ifeq ($(ARCH),PowerPC)
> +ifneq ($TARGET_OS),Linux)
>  LLCASSEMBLERFLAGS = -force_cpusubtype_ALL
>  endif
> +endif
>  # On sparc, pass -mcpu=v9 to allow all V9 instructions, even in 32-bit mode.
>  ifeq ($(ARCH),Sparc)
>  LLCASSEMBLERFLAGS = -mcpu=v9
>