--- OLD/pager.c	Thu Jan  1 00:00:00 1970
+++ NEW/pager.c	Thu Jan  1 00:00:00 1970
@@ -17,10 +17,12 @@
 	 * have real input
 	 */
 	fd_set in;
+	fd_set ex;
 
 	FD_ZERO(&in);
 	FD_SET(0, &in);
-	select(1, &in, NULL, &in, NULL);
+	ex = in;
+	select(1, &in, NULL, &ex, NULL);
 
 	setenv("LESS", "FRSX", 0);
 }