Index: meson/part/exports/config.mk.in
===================================================================
--- meson/part/exports/config.mk.in	(revision e18f0c0a995a22fc6e4a2213cd438d98b62beab4)
+++ meson/part/exports/config.mk.in	(revision d548fc0e28b66bd85d62aea9c93bea619d7f4520)
@@ -1,4 +1,5 @@
 # Generated from config.mk.in using Meson. Do not modify.
 # Do not forget to set HELENOS_EXPORT_ROOT when using the file.
+HELENOS_OVERLAY_PATH="@HELENOS_OVERLAY_PATH@"
 HELENOS_CROSS_PATH="@HELENOS_CROSS_PATH@"
 HELENOS_ARCH="@HELENOS_ARCH@"
Index: meson/part/exports/meson.build
===================================================================
--- meson/part/exports/meson.build	(revision e18f0c0a995a22fc6e4a2213cd438d98b62beab4)
+++ meson/part/exports/meson.build	(revision d548fc0e28b66bd85d62aea9c93bea619d7f4520)
@@ -62,4 +62,5 @@
 
 conf_data = configuration_data({
+	'HELENOS_OVERLAY_PATH' : meson.source_root() / 'uspace/overlay',
 	'HELENOS_CROSS_PATH' : cc_path,
 	'HELENOS_ARCH' : cc_arch,