+#define ASSERT(expr) \
+ do \
+ { \
+ if (!(expr)) \
+ { \
+ fprintf (stderr, "%s:%d: assertion failed\n", __FILE__, __LINE__); \
+ fflush (stderr); \
+ abort (); \
+ } \
+ } \
+ while (0)
+
+/* Some packages define ARGMATCH_DIE and ARGMATCH_DIE_DECL in <config.h>, and
+ thus must link with a definition of that function. Provide it here. */
+#ifdef ARGMATCH_DIE_DECL
+ARGMATCH_DIE_DECL { exit (1); }
+#endif