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
Index: tools/xcw/bin/helenos-test
===================================================================
--- tools/xcw/bin/helenos-test	(revision 705ca2bc3e43a3353d68e38f27197c4e17570898)
+++ tools/xcw/bin/helenos-test	(revision 705ca2bc3e43a3353d68e38f27197c4e17570898)
@@ -0,0 +1,39 @@
+#!/bin/bash
+#
+# Copyright (c) 2018 Jiri Svoboda
+# All rights reserved.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# - Redistributions of source code must retain the above copyright
+#   notice, this list of conditions and the following disclaimer.
+# - Redistributions in binary form must reproduce the above copyright
+#   notice, this list of conditions and the following disclaimer in the
+#   documentation and/or other materials provided with the distribution.
+# - The name of the author may not be used to endorse or promote products
+#   derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#
+# Test run in emulator
+# HelenOS Cross Compiler Wrapper (XCW)
+# Facilitate cross-compiling external software to HelenOS
+#
+
+XCW="$(dirname "$0")"
+SRC_ROOT="$XCW/../../.."
+
+cd "$SRC_ROOT"
+make
+tools/ew.py