http://gcc.gnu.org/bugzilla/show_bug.cgi?id=57220
--- Comment #7 from Daniel Krügler <daniel.kruegler at googlemail dot com> 2013-05-08 20:25:44 UTC --- (In reply to comment #6) The attached '-v' '-save-temps' output indicates version 4.9.0 20130505 (experimental) (x86_64-w64-mingw32), but I'm not sure whether this is reliable in this context. The libmingwex.a file contains the string pattern __mingw_strtod twice, here the contexts of the findings: __tinytens_D2A __strtod __mingw_strtod __strtof __mingw_strtof 3 .rdata$zzz __mingw_strtod .rdata$zzz __strtodg /1900 The spaces shown here are actually NUL values. Is this information sufficiently precise?