http://gcc.gnu.org/bugzilla/show_bug.cgi?id=53920
Manuel López-Ibáñez <manu at gcc dot gnu.org> changed: What |Removed |Added ---------------------------------------------------------------------------- Status|UNCONFIRMED |NEW Last reconfirmed| |2013-11-16 CC| |manu at gcc dot gnu.org Ever confirmed|0 |1 --- Comment #2 from Manuel López-Ibáñez <manu at gcc dot gnu.org> --- The C FE normally preprocesses and parses concurrently. But -E (only preprocessing) is handled by a different function in c-ppoutput.c(scan_translation_unit), which does not handle pragma diagnostics. So someone would need to add that handling there. Probably not difficult. I think one just needs to call c_invoke_pragma handler when a pragma diagnostic is detected, but someone has to try and flush out the details. If you need help just ask.