Added libgit2 dependency

.gitignore

@@ -16,3 +16,4 @@
 /lbs.exe
 /build/lbs.ilk
 /obj/thirdparty/uniproc/src
+/releases

.gitmodules

@@ -4,3 +4,6 @@
 [submodule "thirdparty/uniproc"]
 	path = thirdparty/uniproc
 	url = ssh://gitea@git.rileyk.au:19482/riley/uniproc.git
+[submodule "thirdparty/libgit2"]
+	path = thirdparty/libgit2
+	url = https://github.com/libgit2/libgit2.git

makefile

@@ -1,8 +1,8 @@
 CXX := clang++
 CC := clang
 
-INCLUDES := include src thirdparty/luajit/src thirdparty/uniproc/include
-LIBRARY_DIRECTORIES := thirdparty/luajit/src
+INCLUDES := include src thirdparty/luajit/src thirdparty/uniproc/include thirdparty/libgit2/include
+LIBRARY_DIRECTORIES := thirdparty/luajit/src thirdparty/libgit2
 LINKER_INPUTS := lua51 luajit
 
 DEBUG_DEFINES :=
@@ -63,4 +63,10 @@ build_deps: .make/thirdparty_luajit .make/thirdparty_uniproc
 
 .make/thirdparty_uniproc:
 	git submodule update --init --recursive --remote
-	
+	$(call touch,".make/thirdparty_uniproc")
+
+.make/thirdparty_libgit2:
+	git submodule update --init --recursive --remote
+	cd thirdparty/libgit2 && mkdir build
+	cd thirdparty/libgit2/build && cmake .. && cmake --build .
+	$(call touch,".make/thirdparty_libgit2")