https://gcc.gnu.org/bugzilla/show_bug.cgi?id=98753
--- Comment #19 from Adam Mitz <mitza at ociweb dot com> --- Bison users may insert arbitrary code (like a #pragma) in the input file which is copied to the output. As an example, this is used to silence GCC's warning here https://github.com/DOCGroup/ACE_TAO/blob/e3b027b753b21daf35682d34a1f0f1f4c7af40ff/ACE/ace/Svc_Conf.y#L48
