What are the consequences of compiling with -fopenmp etc.? Can you link modules compiled with -fopenmp, with modules that are not compiled with -fopenmp? Does -fopenmp hurt performance for apps that don't need it? How would one use OPENMP_CFLAGS? Does -fopenmp need to be added to both CFLAGS and CPPFLAGS? Is that why it's not merely put into CFLAGS? This is related to our more-general problem that compiler options like -m64 don't properly belong in either CFLAGS or CPPFLAGS, which means people typically work around the problem with "CC=gcc -m64". This is not a problem with OpenMP per se, but OpenMP sounds like it makes things worse. _______________________________________________ Autoconf mailing list Autoconf@xxxxxxx http://lists.gnu.org/mailman/listinfo/autoconf
