File gcal-3.6-cleanup.patch of Package gcal

--- src/tailor.h
+++ src/tailor.h
@@ -586,6 +585,8 @@
 #  else	/* !MSDOS */
 # include <tmpdir.h>
 # include <stdio.h>
+# include <stdlib.h>
+# include <unistd.h>
 
 static char __buftmpfn[2048];
 static char *_tmpfn ()