Moderate: gcc security and bug fix update

[3.4.6-8.0.1]

• add gcc34-pr23591-tls-model-fix.patch
• this patch fixes a bug with exception handlers and threads

[3.4.6-8]

• 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  timezone stuff instead of builtin simple and outdated rules (#227884)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)

[3.4.6-7]

• regenerate libjava.util.TimeZone data from tzdata2007a (#227884)

[3.4.6-6]

• fix up BuildRequires

[3.4.6-4]

• fix directory traversal bug in fastjar (Richard Guenther, #198912,
  CVE-2006-3619)
• fix .debug_line for inline function parameter blocks
  (Alexandre Oliva, #214353)
• add __cxa_get_exception_ptr@@CXXABI_1.3.1 to libstdc++.so (#210488)
• fix hang in vt_find_locations with -O{2,3} -g
  (Alexandre Oliva, #216695, #218377)
• allow rebuilding gcc src.rpm without java (John Reiser, #207303)
• fix if-conversion ICE (Eric Botcazou, #207277)
• fix template instantiation ICE (Alexandre Oliva, #205919)
• add protoize.1 and unprotoize.1 man pages (#188914)