diff --git a/.gitmodules b/.gitmodules
index 53ea83f85..8727b0dad 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -1,3 +1,6 @@
 [submodule "docs/en/_theme"]
     path = docs/en/_theme
     url = git://github.com/doctrine/doctrine-sphinx-theme.git
+[submodule "lib/vendor/doctrine-build-common"]
+    path = lib/vendor/doctrine-build-common
+    url = git://github.com/doctrine/doctrine-build-common.git
diff --git a/lib/vendor/Symfony/Component/Console b/lib/vendor/Symfony/Component/Console
deleted file mode 160000
index 956147352..000000000
--- a/lib/vendor/Symfony/Component/Console
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 956147352c2666287b39be57a50d98750a772160
diff --git a/lib/vendor/Symfony/Component/Yaml b/lib/vendor/Symfony/Component/Yaml
deleted file mode 160000
index 8272d98f8..000000000
--- a/lib/vendor/Symfony/Component/Yaml
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 8272d98f8087878db37e8e5f6d4e37c5cc783dc3
diff --git a/lib/vendor/doctrine-common b/lib/vendor/doctrine-common
deleted file mode 160000
index d514e3920..000000000
--- a/lib/vendor/doctrine-common
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit d514e3920656921ba1148f16a4089222c58bc83a
diff --git a/lib/vendor/doctrine-dbal b/lib/vendor/doctrine-dbal
deleted file mode 160000
index 659de9a18..000000000
--- a/lib/vendor/doctrine-dbal
+++ /dev/null
@@ -1 +0,0 @@
-Subproject commit 659de9a189e3316174d4edb6ee0b941230453794