https://gcc.gnu.org/bugzilla/show_bug.cgi?id=88237
Bug ID: 88237 Summary: __extension__ in function declaration argument list causes error Product: gcc Version: 9.0 Status: UNCONFIRMED Severity: normal Priority: P3 Component: c Assignee: unassigned at gcc dot gnu.org Reporter: jozef.l at mittosystems dot com Target Milestone: --- The following code errors on trunk: void foo (__extension__ int a); > gcc -S tester.c > > tester.c:11:11: error: expected declaration specifiers or '...' before > '__extension__' > 11 | void foo (__extension__ int a);