gcc/testsuite/gcc.dg/cpp/trad/mi2c.h

   1 /* Test for overly eager multiple include optimization.
   2    Problem distilled from glibc 2.0.7's time.h, sys/time.h, timebits.h.
   3    Problem noted by Tom Tromey <tromey@cygnus.com>.  */
   4 #ifdef need_x
   5 #undef need_x
   6 #ifndef have_x
   7 #define have_x
   8 extern int x;
   9 #endif
  10 #endif
  11
  12 #ifndef t_h
  13 #define t_h
  14 extern int y;
  15 #endif