--- Makefile	2014-03-28 20:20:48.778963266 +0100
+++ Makefile-patched	2014-03-28 20:21:33.513962718 +0100
@@ -31,6 +31,7 @@
 
 PACKAGE_DEB_DV=1
 PERLPATH ?= /usr/bin/perl
+GCC_NETPBM=-I/usr/include/netpbm -lnetpbm
 
 # DATE/TIME to be substituted