Check TARGET_ARCH as well as TARGET to determine if we are doing a cross build. This is necessary to be able to cross-build 32-bit PowerPC from a 64-bit PowerPC host.
Check TARGET_ARCH as well as TARGET to determine if we are doing a cross
build. This is necessary to be able to cross-build 32-bit PowerPC from
a 64-bit PowerPC host.

Reviewed by:	imp

jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase,jrobhoward/SCADAbase