https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67115
Bug ID: 67115 Summary: [MinGW64] name conflict with system headers (identifier "CONST") Product: gcc Version: 5.2.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: sliwa at ifpan dot edu.pl Target Milestone: --- A pthreads build on MinGW64 fails due to a name conflict: * "CONST" is a macro in the system headers (#defined to const) * CONST is an enum value in the GCC source Apparently, the build completes fine with Win32 threads.