/* Regression test for bug in convoluted situation involving token paste   plus function-like macros used outside function context.  It may be   easier to understand if you mentally replace 'struct' with 'A'   throughout this file; 'struct' is used only to get the code to compile   when preprocessed correctly.   The original problem was seen in the Linux kernel and reported by   Jakub Jelinek <jakub@redhat.com>; this test is synthetic.  *//* { dg-do compile } */#define glue(a,b) a##b#define struct(x) B(x)#define E(x) struct x#define FG (22)extern void B(int);void foo(void){  E(glue(F,*)) dummy;  /* { dg-warning "valid preprocessing token" } */  E(glue(F,G)) ;}