diff --git a/.gitmodules b/.gitmodules
index d3bf5e4..17c2a79 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -4,3 +4,6 @@
 [submodule "External/expecta"]
 	path = External/expecta
 	url = https://github.com/github/expecta.git
+[submodule "External/xcconfigs"]
+	path = External/xcconfigs
+	url = https://github.com/jspahrsummers/xcconfigs.git
diff --git a/External/xcconfigs b/External/xcconfigs
new file mode 160000
index 0000000..0499661
--- /dev/null
+++ b/External/xcconfigs
@@ -0,0 +1 @@
+Subproject commit 0499661837b2a080f29926c554f99fe7200f10a9