- Update to GCC 4.8.5 release.
* Fixes bogus integer overflow in constant expression. [bnc#934689]
* Fixes ICE with atomics on aarch64. [bnc#930176]
- Add patch gcc48-pr66306.patch for reload issue on S390.
- Add patch to keep functions leaf when they are instrumented for
profiling on s390[x]. [bnc#899871]
- Add patch gcc48-bnc922534.patch to avoid accessing invalid memory
when passing aggregates by value. [bnc#922534]
- Add patch gcc48-s390x-keep-leaf-when-profiled.diff for
kgraft. [bnc #899871]

- Fix build against SLE11 SP4. [fate#317926]
* Build without GRAPHITE support where isl and cloog-isl are not
available.
* Where mpfr 2.4.0 is not available disable the few features
requiring it to allow building with mpfr 2.3.2,
gcc48-remove-mpfr-2.4.0-requirement.patch.
* Disable Ada build for ppc64.

- Build s390[x] with --with-tune=z9-109 --with-arch=z900 on SLE11
again. [bnc#927993]

- Remove obsolete libsanitizer-tsan-res-state.patch

- Update to gcc-4_8-branch head (r221715).
* Includes GCC 4.8.4 release.
* Includes fix for -imacros bug. [bnc#917169]
* Includes fix for incorrect -Warray-bounds warnings. [bnc#919274]
* Includes updated -mhotpatch for s390x. [bnc#924525]
* Includes fix for ppc64le issue with doubleword vector extract.