https://gcc.gnu.org/bugzilla/show_bug.cgi?id=116018
--- Comment #1 from Andrew Pinski <pinskia at gcc dot gnu.org> --- Note it is bad form to use `#pragma GCC poison` from a library's public header. If there is any from a library's public header then those libraries should be fixed. GCC's plugin situtation is different and GCC's headers really should not be always considered as a public header, it just happens that the plugins API for GCC is every API and therefore there is no private headers.
