File xpp-makefile.patch of Package dahdi-tools

--- dahdi-tools-2.11.1/xpp/Makefile.am	2016-03-01 17:04:19.000000000 -0500
+++ dahdi-tools-2.11.1/xpp/Makefile.am.new	2016-03-18 21:14:39.413212076 -0400
@@ -24,7 +24,7 @@
 SUBDIRS		+= perl_modules
 
 %.8: %
-	@if file "$^" | cut -d: -f2 | grep -q -iw perl; then \
+	@if file "$^" | cat $^ | grep -q -iw perl; then \
 		if pod2man --section 8 $^ > $@; then \
 			echo "  GEN      $@"; \
 		else \