--- trunk/mage/usr/lib/mage/depwalker.sh	2013/10/16 06:52:01	2220
+++ trunk/mage/usr/lib/mage/depwalker.sh	2013/10/16 07:40:02	2221
@@ -32,6 +32,7 @@
 	echo "  -v     --pver          version number of the package"
 	echo "  -b     --pbuild        build number of the package"
 	echo "  -m     --method        which calc method should be used:"
+	echo "  -d     --debug         enable debug mode"
 	echo "                         install, srcinstall, depend, srcdepend"
 	echo "                         upgrade, srcupgrade,"
 	echo "                         install-build-prerequisites, pretend-build-prerequisites"
@@ -41,6 +42,9 @@
 	exit 1
 }
 
+# always default debug=0
+DEBUG=0
+
 # very basic getops
 for i in $*
 do
@@ -50,6 +54,7 @@
 		--pver|-v) shift; PVER="$1" ;;
 		--pbuild|-b) shift; PBUILD="$1" ;;
 		--method|-m) shift; METHOD="$1" ;;
+		--debug|-d) shift; DEBUG=1 ;;
 		--help|-h) usage ;;
 	esac
 	shift
@@ -184,6 +189,11 @@
 
 	while read SYM DEPNAME
 	do
+		if [[ ${DEBUG} = 1 ]]
+		then
+			echo "DEBUG: DEPNAME='${DEPNAME}'" >&2
+		fi
+
 		# exclude empty depnames
 		[[ -z ${DEPNAME} ]] && continue