## Save compiler flags preset with environment variables CFLAGS or CXXFLAGS;
## they will used within smpicc, smpicxx.
## Do it early so that we get their genuine values. The same will be done later for Fortran.
## Save compiler flags preset with environment variables CFLAGS or CXXFLAGS;
## they will used within smpicc, smpicxx.
## Do it early so that we get their genuine values. The same will be done later for Fortran.