build: Disable warnings about non-portable constructs
build: Disable warnings about non-portable constructs

rvu95/vte,asivokon/vte-fx,thestinger/vte-ng,pjm0616/vte,saitoha/vte-sixel,pjm0616/vte,thestinger/vte-ng,thestinger/vte-ng,saitoha/vte-sixel,flaxandteal/gasket-vte,asivokon/vte-fx,jessevdk/vte,flaxandteal/gasket-vte,rvu95/vte,jessevdk/vte,pjm0616/vte,jessevdk/vte,asivokon/vte-fx,flaxandteal/gasket-vte,rvu95/vte,rvu95/vte,jessevdk/vte,saitoha/vte-sixel,asivokon/vte-fx,flaxandteal/gasket-vte