http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47571
--- Comment #46 from Jakub Jelinek <jakub at gcc dot gnu.org> 2011-03-21 16:34:39 UTC --- You clearly don't understand that linking librt in means linking both librt and libpthread in, thus both some overhead at the start of application, for various places in the C library that behave differently if libpthread is linked in, and even gthr* suddenly is more costly just because librt has been linked in. I think on a target which doesn't support weaks having GFORTRAN_USE_WEAK defined to 1 is just wrong.
