File wipe-2.2.0-errno.diff of Package wipe

--- rand.c
+++ rand.c
@@ -27,6 +27,7 @@
 #include <fcntl.h>
 #include <sys/types.h>
 #include <sys/stat.h>
+#include <errno.h>
 
 #include "std.h"
 #include "io.h"
@@ -35,7 +36,7 @@
 #include "rand.h"
 
 extern char *argvzero;
-extern int errno, exit_code;
+extern int exit_code;
 extern struct opt_s options;
 
 int entropyfd;