Include stdlib.h. (Bug 385).

src/server/log.c

 /*
- * $Id: log.c,v 0.24 2001/11/04 21:03:51 ceder Exp $
+ * $Id: log.c,v 0.25 2002/01/23 16:22:46 ceder Exp $
  * Copyright (C) 1991-1995, 1998-1999  Lysator Academic Computer Association.
  *
  * This file is part of the LysKOM server.
@@ -37,6 +37,9 @@
 #ifdef HAVE_STDARG_H
 #  include <stdarg.h>
 #endif
+#ifdef HAVE_STDLIB_H
+#  include <stdlib.h>
+#endif
 #include <stdio.h>
 #include <sys/types.h>
 #include <time.h>