Index: tools/xcw/bin/helenos-bld-config
===================================================================
--- tools/xcw/bin/helenos-bld-config	(revision 705ca2bc3e43a3353d68e38f27197c4e17570898)
+++ tools/xcw/bin/helenos-bld-config	(revision b501de784dd26902c687e3142fa124f7aecd3384)
@@ -33,7 +33,10 @@
 
 SRC_ROOT="$(dirname "$0")/../../.."
-MAKEFILE_COMMON="$SRC_ROOT"/Makefile.common
-MAKEFILE_CONFIG="$SRC_ROOT"/Makefile.config
-CONFIG_MK="$SRC_ROOT"/uspace/export/config.mk
+if [ -z "$EXPORT_DIR" ]; then
+	EXPORT_DIR="$SRC_ROOT/uspace/export"
+fi
+MAKEFILE_COMMON="$EXPORT_DIR"/Makefile.common
+MAKEFILE_CONFIG="$EXPORT_DIR"/Makefile.config
+CONFIG_MK="$EXPORT_DIR"/config.mk
 
 # Extract simple 'name = value' variable definition from Makefile