[Bug driver/46410] [4.6 Regression] Linker options no longer accepted

["rguenther at suse dot de" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46410

--- Comment #4 from rguenther at suse dot de <rguenther at suse dot de> 2010-11-10 13:28:21 UTC ---
On Wed, 10 Nov 2010, joseph at codesourcery dot com wrote:

> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=46410
> 
> --- Comment #3 from joseph at codesourcery dot com <joseph at codesourcery dot com> 2010-11-10 13:13:06 UTC ---
> Yes, these options were ignored in general; the driver would have 
> translated -- to -f, but the linker specs don't pass down -f options, and 
> now -- is only translated to -f if a corresponding -f option actually 
> exists.  If the packages actually want these options to go to the linker, 
> they should use -Wl, to pass them.
> 
> > biosdevname:gcc: error: unrecognized option '-all-static'
> > dconf:gcc: error: unrecognized option '-avoid-version'
> 
> These would have previously been allowed by %{a*} specs because the 
> long-ago removal of support for the old -a profiling options had some bits 
> missing that I caught.  As those were compiler specs, this just meant that 
> the options were quietly ignored (any option accepted by a spec is 
> accepted) rather than being passed to the linker.
> 
> > ecj-bootstrap:gcj: error: unrecognized option '-s-bc-abi'
> 
> This option is meant to be valid - in java/lang.opt and in libgcj.spec.  
> If it's being rejected perhaps there's something wrong with your 
> libgcj.spec?  It's nothing new that an option needs to be in a spec for 
> the driver to accept it.

Ah, true.

find $RPM_BUILD_ROOT -name libgcj.spec | xargs \
  sed -i -e 's/lib: /&%%{static:%%eJava programs cannot be linked 
statically}/'

probably kills it?  The result is

%rename startfile startfileorig
*startfile:  %(startfileorig)

%rename lib liborig
*lib: %{static:%eJava programs cannot be linked 
statically}%{static-libgcj:-non_shared} 
%{static|static-libgcj|!s-bc-abi:-lgcj;:-lgcj_bc} 
%{static-libgcj:-call_shared} -lm   -lpthread -lrt    -ldl %(libgcc)  
%(liborig)

*jc1: -fhash-synchronization -fno-use-divide-subroutine  -fuse-boehm-gc 
-fnon-call-exceptions    %{findirect-dispatch:-fPIC} 
-fkeep-inline-functions


OTOH gcj is invoked as

gcj -Wno-deprecated -findirect-dispatch -Bsymbolic -C --classpath 
.:/usr/share/java/libgcj-tools-4.6.jar:/usr/share/java/libgcj-4.6.jar

and I can't see where -s-bc-abi slips in.  Hmm.  I'll investigate closer
when I have time to.