-#if !HAVE_STRNCASECMP
-# include <ctype.h>
-/* Compare no more than N characters of S1 and S2,
- ignoring case, returning less than, equal to or
- greater than zero if S1 is lexicographically less
- than, equal to or greater than S2. */
-int
-strncasecmp (const char *s1, const char *s2, size_t n)
-{
- register const unsigned char *p1 = (const unsigned char *) s1;
- register const unsigned char *p2 = (const unsigned char *) s2;
- unsigned char c1, c2;
+/* The following test is to work around the gross typo in
+ systems like Sony NEWS-OS Release 4.0C, whereby EXIT_FAILURE
+ is defined to 0, not 1. */
+#if !EXIT_FAILURE
+# undef EXIT_FAILURE
+# define EXIT_FAILURE 1
+#endif