http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47692
--- Comment #6 from John T <jrt at worldlinc dot net> 2011-02-11 19:56:02 UTC --- I built the reference BLAS included with Lapack from source. I just got the results from blas_testing using gcc-4.4.5 and results good again. I don't know where to find the raw results from lapack and blas testing. Should there be an ieee flag in compiler settings? Any flags on how to round? My flags were: # FORTRAN = gfortran -fimplicit-none -g OPTS = -O3 DRVOPTS = $(OPTS) NOOPT = -g -O0 LOADER = gfortran -g LOADOPTS =