Mike Sullivan <mbsullivan@xxxxxxxxx> writes: > A co-worker of mine is having some odd floating-point issues that are > related to the compilation options passed to GCC v4.3.3. There are many instability issues with gcc floating point when using the 80387 FP stack on x86. This is the classic bug report http://gcc.gnu.org/PR323 , which has finally been fixed for the upcoming gcc 4.5 by adding a new option -fexcess-precision=standard. If your processor is newer than a Pentium 3, then you can avoid the problem by using option such as -march=pentium4 -mtune=generic -mfpmath=sse. Ian
