extern int vsnprintf (char *, size_t, const char *, va_list) ATTRIBUTE_PRINTF(3,0);
#endif
+#if defined(HAVE_DECL_STRVERSCMP) && !HAVE_DECL_STRVERSCMP
+/* Compare version strings. */
+extern int strverscmp (const char *, const char *);
+#endif
+
#define ARRAY_SIZE(a) (sizeof (a) / sizeof ((a)[0]))
/* Drastically simplified alloca configurator. If we're using GCC,