$ cat /usr/local/share/toolchains/powerpc64-gcc.mk
XCC=/usr/local/bin/powerpc64-portbld-freebsd10.0-gcc
XCXX=/usr/local/bin/powerpc64-portbld-freebsd10.0-g++
XCPP=/usr/local/bin/powerpc64-portbld-freebsd10.0-cpp
CROSS_BINUTILS_PREFIX=/usr/local/powerpc64-freebsd/bin/
X_COMPILER_TYPE=gcc