--- a/sysv.c
+++ b/sysv.c
@@ -63,8 +63,8 @@
    return (fname); /* default is no-op */
 }
 
-extern long timezone;   /* defined by library routine */
-long time ();
+/*extern long timezone;    defined by library routine */
+/* long time (); */
 struct tm *localtime ();
 
 /* Function gettz(), returns the offset from GMT in seconds of the
--- a/zoo.h
+++ b/zoo.h
@@ -95,6 +95,9 @@
 #endif
 
 typedef unsigned char uchar;
+typedef unsigned int uint;
+typedef unsigned long ulong;
+typedef unsigned short ushort;
 
 /* WARNING:  Static initialization in zooadd.c or zooext.c depends on the 
    order of fields in struct zoo_header */