Add Debian packaging information
diff --git a/.gitignore b/.gitignore
index 9deb3b5..041cf24 100644
--- a/.gitignore
+++ b/.gitignore
@@ -21,3 +21,12 @@
 
 # Debian package build temporary files
 build-stamp
+debian/*.substvars
+debian/*.debhelper.log
+debian/autoreconf.*
+debian/.debhelper
+debian/files
+debian/tmp
+debian/libgtpnl-dev
+debian/libgtpnl-dbg
+debian/libgtpnl0