fixes

include/unix.h

@@ -8,7 +8,10 @@
 #include <assert.h>
 #include <unistd.h>
 #include <stdarg.h>
-
+#include <inttypes.h>
+#include <ctype.h>
+#include <errno.h>
 
 typedef long long		p9_vlong;
 typedef	unsigned long long p9_uvlong;
+typedef uintptr_t uintptr;