C++11 codebase.
This brings in a number of improvements over 3.4 including..
X86 assembler with 16-bit support
Much improved SPARC backend
stack protector strong support
ok sthen@
enable it through symlinks in ${WRKDIR}/bin/, which were effectively
overriden by gcc4.port.mk or clang.port.mk - thus lying that ccache was
used while it was not.
Still investigating for a good solution to actually enable ccache support
for non-base compilers.
okay juanfra@, sthen@