diff --git a/.gitmodules b/.gitmodules
index 6775067..bda8ed5 100644
--- a/.gitmodules
+++ b/.gitmodules
@@ -19,3 +19,6 @@
 [submodule "deps/libmbedtls"]
 	path = deps/libmbedtls
 	url = https://github.com/jakcron/libmbedtls
+[submodule "deps/libtoolchain"]
+	path = deps/libtoolchain
+	url = https://github.com/jakcron/libtoolchain.git
diff --git a/deps/libtoolchain b/deps/libtoolchain
new file mode 160000
index 0000000..c730303
--- /dev/null
+++ b/deps/libtoolchain
@@ -0,0 +1 @@
+Subproject commit c730303b8c628ca0f853c9ac02d9efe49b76061d