[Bug tree-optimization/68235] gimple optimisations always use global -fmath-errno setting

[joseph at codesourcery dot com]

https://gcc.gnu.org/bugzilla/show_bug.cgi?id=68235

--- Comment #4 from joseph at codesourcery dot com <joseph at codesourcery dot 
com> ---
I'm not aware of any fix for this bug (the only commit shown is a change 
to testcase options, not a fix).