diff options
| author | Andrew Dunstan | 2011-12-14 22:15:24 +0000 |
|---|---|---|
| committer | Andrew Dunstan | 2011-12-14 22:15:24 +0000 |
| commit | 5878a328e36b7f59c6c173212b77d0536e8804dd (patch) | |
| tree | 804df702f16d6480ea0396af74a6f6328f40fdb6 /configure.in | |
| parent | fb0eca0695e0e287335cf969b8ae48f0a42c40e8 (diff) | |
Disable excessive FP optimization by recent versions of gcc.
Suggested solution from Tom Lane. Problem discovered, probably not
for the first time, while testing the mingw-w64 32 bit compiler.
Backpatched to all live branches.
Diffstat (limited to 'configure.in')
| -rw-r--r-- | configure.in | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/configure.in b/configure.in index 9cf084d4b67..9def3d54d5f 100644 --- a/configure.in +++ b/configure.in @@ -437,6 +437,8 @@ if test "$GCC" = yes -a "$ICC" = no; then PGAC_PROG_CC_CFLAGS_OPT([-fno-strict-aliasing]) # Disable optimizations that assume no overflow; needed for gcc 4.3+ PGAC_PROG_CC_CFLAGS_OPT([-fwrapv]) + # Disable FP optimizations that cause various errors on gcc 4.5+ or maybe 4.6+ + PGAC_PROG_CC_CFLAGS_OPT([-fexcess-precision=standard]) elif test "$ICC" = yes; then # Intel's compiler has a bug/misoptimization in checking for # division by NAN (NaN == 0), -mp1 fixes it, so add it to the CFLAGS. |