diff --git a/.gitmodules b/.gitmodules
index 522ab5f..186bfcd 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -65,3 +65,7 @@ url = ../rpm/build-compare.git
 [submodule "bzip2"]
 path = bzip2
 url = ../rpm/bzip2.git
+
+[submodule "compat-usrmerge"]
+path = compat-usrmerge
+url = ../rpm/compat-usrmerge.git
diff --git a/compat-usrmerge b/compat-usrmerge
new file mode 160000
index 0000000..3debaec
--- /dev/null
+++ b/compat-usrmerge
@@ -0,0 +1 @@
+Subproject commit 3debaecd7b7ea528a896de8b02fad14a065e81a6