The warning
-- Summary: Please report #pragma GCC poison" location Product: gcc Version: unknown Status: UNCONFIRMED Severity: enhancement Priority: P3 Component: preprocessor AssignedTo: unassigned at gcc dot gnu dot org ReportedBy: h dot b dot furuseth at usit dot uio dot no GCC build triplet: i386-redhat-linux GCC host triplet: i386-redhat-linux GCC target triplet: i386-redhat-linux http://gcc.gnu.org/bugzilla/show_bug.cgi?id=36887