-char *xmstrcat3save(const char *a, const char *b, const char *c);
-char *xmstrsave(const char *s);
-char *xmstrsubsave(const char *begin, int len);
+char *xstrcat3save(const char *a, const char *b, const char *c);
+char *xstrsave(const char *s);
+char *xstrsubsave(const char *begin, int len);