Only enforce -fno-strict-aliasing for optimization levels that imply -fstrict-aliasing.
Only enforce -fno-strict-aliasing for optimization levels that
imply -fstrict-aliasing.

Reviewed by:	bde

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