[Bug lto/53604] New: ld reports errors using lto after upgrading from gcc-4.6.2 to gcc-4.7.0

["paul.scruby at ghco dot co.uk" <gcc-bugzilla at gcc dot gnu dot org>]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53604

             Bug #: 53604
           Summary: ld reports errors using lto after upgrading from
                    gcc-4.6.2 to gcc-4.7.0
    Classification: Unclassified
           Product: gcc
           Version: 4.7.0
            Status: UNCONFIRMED
          Severity: normal
          Priority: P3
         Component: lto
        AssignedTo: unassigned@gcc.gnu.org
        ReportedBy: paul.scruby@ghco.co.uk


I recently tried to upgrade from gcc-4.6.2 to gcc-4.7.0.  I have been using the
lto with gcc-4.6.2 and binutils-2.22 for a while with no problems.

However, since I upgraded to gcc-4.7.0 ld is getting "hidden symbol isn't
defined" errors, something like this when I try to link with my static
libraries and a boost shared object:

  $  /opt/gcc-4.7.0/bin/g++ -o /home/pauls/repos/build/bin/my_app
-static-libstdc++ -m64 -march=corei7 -Wl,-rpath,/opt/boost-1.44/lib
-L/opt/boost-1.44/lib -flto -O3 -fuse-linker-plugin
-L/home/pauls/repos/build/lib /home/pauls/repos/build/obj/my_app.o -lmy_lib
-lboost_regex -ldl -lrt
 
`_ZThn16_N5boost16exception_detail10clone_implINS0_19error_info_injectorISt11logic_errorEEED1Ev'
referenced in section `.data.rel.ro' of /tmp/cc0n7i0I.ltrans12.ltrans.o:
defined in discarded section
`.gnu.linkonce.t._ZN5boost16exception_detail10clone_implINS0_19error_info_injectorISt11logic_errorEEED5Ev'
of /home/pauls/repos/build/obj/my_app.o (symbol from plugin)
 
/opt/gcc-4.7.0/lib/gcc/x86_64-fedora-linux/4.7.0/../../../../x86_64-fedora-linux/bin/ld:
/home/pauls/repos/build/bin/my_app: hidden symbol `.LTHUNK11.6239' isn't
defined

binutils 2.22 was pre-installed into:
  $ /opt/gcc-4.7.0

gcc4.7.0 was build with:
  $ export PATH=/opt/gcc-4.7.0/bin/:$PATH
  $ ../configure --prefix=/opt/gcc-4.7.0 --build=x86_64-fedora-linux
--with-system-zlib --enable-plugin --enable-bootstrap --enable-shared
--enable-threads=posix --enable-languages=c,c++ --disable-checking
--disable-libunwind-exceptions

I tried upgrading to binutils-2.22.52 to see if was an issue with ld that had
recently been patched, but I got the same error.  

I also tried upgrading from boost-1.44 to boost-1.49 to see if it was an issue
with boost exception code, but I also got the same error.

Thanks,

Paul