Index: tools/xcw/bin/helenos-bld-config
===================================================================
--- tools/xcw/bin/helenos-bld-config	(revision a5c468e1202a50cf26350e4a4d16303bc7323265)
+++ tools/xcw/bin/helenos-bld-config	(revision 705ca2bc3e43a3353d68e38f27197c4e17570898)
@@ -58,7 +58,15 @@
 *.--cflags) extract_field "HELENOS_CFLAGS" "$CONFIG_MK";;
 *.--ldflags) extract_field "HELENOS_LDFLAGS" "$CONFIG_MK";;
+*.--install-dir) echo "$(realpath "$SRC_ROOT/uspace/overlay")";;
 (*)
 	echo "Unknown option $1" >&2
-	echo "Usage: helenos-pkg-config {--cc|--ld|--uarch|--endian}" >&2
+	echo "Usage: helenos-bld-config <option>" >&2
+	echo "        --cc" >&2
+	echo "        --ld" >&2
+	echo "        --uarch" >&2
+	echo "        --endian" >&2
+	echo "        --cflags" >&2
+	echo "        --ldflags" >&2
+	echo "        --install-dir" >&2
 	exit 1;;
 esac