- fix libjava to avoid opening *.la/dlopening *.so files from current
  working directory or subdirectories thereof (#545670, CVE-2009-3736)

- add gnu.java.util.ZoneInfo class, use tzdata files for libgcj
  timezone stuff instead of builtin simple and outdated rules (#227884)
- add missing @GCC_4.0.0 and @GCC_4.2.0 libgcc symbols (except for the
  long double ones on ppc32/s390{,x} which can't be supported in RHEL4)

- update from gcc-3_4-branch
  - PRs c++/10611, c++/19608, c++/19884, c++/20563, c++/20789, c++/21336,
	c++/21853, c++/21903, c++/21987, c/22308, libstdc++/21286,
	rtl-optimization/22167, target/19933, target/20301, target/21888,
	target/21889, target/22083
  - fix -march=i386 -masm=intel -fpic (#162585)
- on ppc64 and s390x, change the obsoletes for gcc-gnat and libgnat
  to < 3.4.3
- fix visibility handling of static class members
  (Mark Mitchell, #159197, PR c++/18925)
- fix some -fvar-tracking bugs that were causing bogus DW_OP_piece ops
- fix -fvar-tracking on big-endian targets (Josef Zlomek,
  PR middle-end/14084)
- avoid recursive use of varasm hash tables (#157308)
- on ppc accept CTR-to-CTR copy in mov[sd]f_hardfloat patterns
  (Dale Johannesen, Janis Johnson, #160815, IT#74566,
   PRs target/20191, target/22081)
- remove limit of 16 nested GCC visibility pragmas (PR middle-end/20303)
- fix stringbuf in_avail() (Benjamin Kosnik, #159408, IT#72781)