http://gcc.gnu.org/bugzilla/show_bug.cgi?id=47692
Harald Anlauf <anlauf at gmx dot de> changed: What |Removed |Added ---------------------------------------------------------------------------- CC| |anlauf at gmx dot de --- Comment #5 from Harald Anlauf <anlauf at gmx dot de> 2011-02-11 19:44:12 UTC --- (In reply to comment #4) > Did you build blas or download a pre-compiled version? > What were your compiler options? Note, one should not > build smalach.f and dmalach.f with any optimization > (may have mis-remebered file names). With LAPACK-3.3.0 dlamch has been completely rewritten and should return the same results at any optimization level. It now uses the Fortran numeric inquiry intrinsics.