Bug fix
Description:
Old config assume compiler is the SGI compiler if it is not gcc.
It would apply all SGI cc options to the $CFLAGS. This would cause
problem if a non-cc non-gcc compiler is used.
Solution:
Verify the compiler is indeed the SGI compiler before applying all those
cc specific options to the $CFLAGS.
Platforms tested:
modi4, both parallel serial, gcc or cc, -64 or n32.
27f237f4c0