Re: [PATCH][Revised] Pass -no_pie on SYSTEMSPEC for darwin11

[Jack Howarth <howarth@bromo.med.uc.edu>]

On Sat, Jun 18, 2011 at 07:48:51AM -0700, Mike Stump wrote:
> On Jun 17, 2011, at 7:49 PM, Jack Howarth wrote:
> >  The gcj compiler needs to pass -no_pie for linkage on darwin11 due to the new -pie
> > default of the linker. The attached patch accomplishes this by passing -no_pie on SYSTEMSPEC
> > for *-*-darwin[12]*. Since Darwin10 supports -no_pie in its linker, I included it in the
> > triplet match to simplify the syntax. Bootstrap and tested on x86_64-apple-darwin11.
> > Okay for gcc trunk with PR added to comment as requested?
> 
> > ps This change also works for gcc-4_6-branch in concert with a backport of
> > r175089 and r175108.
> 
> I've backported these two to the gcc-4_6-branch.  I tried 4.5, but, they'd need to have mh-darwin backported, so I didn't bother.

Mike,
   We might just create a mh-x86-darwin for gcc 4.5. Currently dragonegg only supports that FSF gcc release
so it would be nice to have a clean bootstrap on darwin11 to support that option.
       Jack
ps FYI, I am only suggesting we populate mh-x86-darwin with...

# Ensure we don't try and use -pie, as it is incompatible with pch.
BOOT_LDFLAGS += `case ${host} in *-*-darwin[1][1-9]*) echo -Wl,-no_pie ;; esac;`

and skip the...

BOOT_CFLAGS += -mdynamic-no-pic

bit.