Add makefile and compile command for macos

.gitignore

@@ -57,6 +57,9 @@ steam_appid.txt
 # .nfs files are created when an open file is removed but is still being accessed
 .nfs*
 
+# Vim temp files
+*.swp
+
 ### Lua ###
 # Compiled Lua sources
 luac.out

Makefile

@@ -0,0 +1,26 @@
+
+SRC=luasteam.cxx
+STDLIB_VER=-std=c++11
+
+OSX_OUT=steam.so
+OSX_IPATHS=-I/usr/local/include/luajit-2.0
+OSX_LPATHS=-L./lib/osx32 -lsteam_api -L/usr/local/lib -lluajit-5.1
+OSX_FLAGS=$(OSX_IPATHS) $(OSX_LPATHS) $(STDLIB_VER)
+
+GNU_OUT=steam.so
+GNU_IPATHS=-I/usr/include/luajit-2.0
+GNU_LPATHS=-L./lib/linux64 -lsteam_api -L/usr/lib/x86_64-linux-gnu -lluajit-5.1
+GNU_FLAGS=$(OSX_IPATHS) $(GNU_LPATHS) $(STDLIB_VER)
+
+
+.PHONY: all osx gnu
+
+all:
+	@echo "choose platform: osx | linux"
+
+osx:
+	$(CXX) $(SRC) -o $(OSX_OUT) -shared -fPIC $(OSX_FLAGS)
+
+gnu:
+	$(CXX) $(SRC) -o $(GNU_OUT) -shared -fPIC $(GNU_FLAGS)
+