gcc/testsuite/gcc.dg/pr20368-2.c

   1 /* ICE with -Wstrict-prototypes and typeof an undeclared function.
   2    Bug 20368.  Test with -Wmissing-prototypes.  */
   3 /* { dg-do compile } */
   4 /* { dg-options "-Wmissing-prototypes" } */
   5
   6 extern __typeof (f) g; /* { dg-error "'f' undeclared here \\(not in a function\\)" } */
   7
   8 int
   9 f (x)
  10      float x; /* { dg-warning "no previous prototype for 'f'" } */
  11 {
  12 }