diff --git a/.gitmodules b/.gitmodules
index b5bc864b..dffc0653 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -13,3 +13,6 @@
 [submodule "libjpeg-turbo"]
 	path = libjpeg-turbo
 	url = https://github.com/libjpeg-turbo/libjpeg-turbo.git
+[submodule "SDL-mirror"]
+	path = SDL-mirror
+	url = https://github.com/spurious/SDL-mirror.git
diff --git a/SDL-mirror b/SDL-mirror
new file mode 160000
index 00000000..14531cf0
--- /dev/null
+++ b/SDL-mirror
@@ -0,0 +1 @@
+Subproject commit 14531cf0fcdac6939d1d511d478c795a05cea34f