1  /* { dg-do compile } */
       2  /* { dg-options "-Wunused-variable -Wno-unused-const-variable" } */
       3  
       4  static int a = 0;	  /* { dg-warning "defined but not used" } */
       5  static const int b = 0;
       6  static int c __attribute__ ((unused)) = 0;
       7  static const char rcsid[] = "version-string";