No patch this time. Sorry.
By the way, all patches and tests I reported so far came from trying
to -fsyntax-only compile Lua and Expat with Clang. Both are GCC -Wall
clean and written in portable standard C.
// RUN: clang -fsyntax-only -verify %s
typedef int unary_int_func(int arg);
unary_int_func add_one;
int add_one(int arg) {
return arg + 1;
}