[Bug c/55819] Conflicting declaration of getcwd breaks mingw-w64 compile

[rguenth at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55819

--- Comment #1 from Richard Biener <rguenth at gcc dot gnu.org> 2012-12-31 16:27:01 UTC ---
This means a configure test was not detecting presence of getcwd correctly.