cross-s390x-gcc13-bootstrap-13.4.0+git9739-160000.2.2

- Remove all %gcc_icecream mode cross-compilers and the corresponding
  icecream backend subpackages.  Instead use glibc-bootstrap only
  configs for cross-x86_64-gcc (ipxe,ovmf,qemu), cross-ppc64-gcc (qemu)
  and cross-arm-gcc (ovmf).
- Prune the use of update-alternatives from openSUSE Factory and
  SLFO.
- Adjust crosses to conflict consistently where they did not
  already and make them use unsuffixed binaries.

- Tune for power10 for SLES 16.  [jsc#PED-12029]
- Tune for z15 for SLES 16.  [jsc#PED-253]

- Update to GCC 13.4 release
  * collects regression fixes from the last year
- Remove hppa icecream backend to avoid conflicts with the
  hppa bootstrap compiler

- Re-enable AutoReqProv for cross packages but filter files processed
  via __requires_exclude_from and __provides_exclude_from.
  [boo#1219031]
- Exclude shared objects present for link editing in the GCC specific
  subdirectory from provides processing via __provides_exclude_from.
  [bsc#1244050][bsc#1243991]

- Make cross-*-gcc13-bootstrap package conflict with the non-bootstrap
  variant conflict with the unversioned cross-*-gcc package.

- Update to gcc-13 branch head, ec78a0d9962f144b13c6da3ebe, git9730
  * GCC 13.4 RC2
  * Includes gcc13-bsc1216664.patch

- Fix s390x build by using a glob for installed libgcc_s.so and
  libgcc_s.so.1 which only appears when the former is a linker
  script.  [bsc#1241549]

- Make sure link editing is done against our own shared library
  copy rather than the installed system runtime.  [bsc#1240788]

- Replace gcc13-rs6000-Adjust-fpatchable-function-entry.patch with
  a backport of the now upstream -msplit-patch-nops in
  gcc13-rs6000-msplit-patch-nops.patch requried for user-space
  livepatching on powerpc.

- Update to gcc-13 branch head, 4ef1d8c84faeebffeb0cc01ee2, git9426
- Remove gcc13-pr116657.patch now present on the branch.
- Remove gcc13-pr118780.patch now present on the branch.
- Add gcc13-bsc1239566.patch to also record -D_FORTIFY_SOURCE=2
  in the DWARF debug info DW_AT_producer string.  [bsc#1239566]