diff --git a/Makefile b/Makefile
index 296b7f5ef..3038bbc94 100644
--- a/Makefile
+++ b/Makefile
@@ -6,69 +6,76 @@ V ?= 1
 
 all: llmr
 
-llmr: config.gypi src llmr.gyp
+deps: glsl-optimizer
+
+llmr: deps config.gypi src llmr.gyp
 	@if [ ! -f out ]; then echo 'please run ./configure first'; else $(MAKE) -C out BUILDTYPE=Release V=$(V) llmr-x86; fi;
 
-gtest: config.gypi src llmr.gyp
+gtest: deps config.gypi src llmr.gyp
 	deps/run_gyp llmr.gyp -Goutput_dir=./out/ --depth=. --generator-output=./build/gtest -f make
 	make -C build/gtest gtest V=$(V)
 
 # build OS X app with pure make
-app: config.gypi src macosx/llmr-app.gyp
+app: deps config.gypi src macosx/llmr-app.gyp
 	deps/run_gyp macosx/llmr-app.gyp -Goutput_dir=./out/ --depth=. --generator-output=./build/macosx-make -f make
 	make -C build/macosx-make V=$(V)
 	open build/macosx-make/out/Release/llmr.app
 
-linux: config.gypi src linux/llmr-app.gyp
+linux: deps config.gypi src linux/llmr-app.gyp
 	deps/run_gyp linux/llmr-app.gyp -Goutput_dir=./out/ --depth=. --generator-output=./build/linux-make -f make
 	make -C build/linux-make V=$(V)
 	./build/linux-make/out/Release/llmr.app
 
 
 # build OS X app with Xcode
-lproj: config.gypi src linux/llmr-app.gyp
+lproj: deps config.gypi src linux/llmr-app.gyp
 	deps/run_gyp linux/llmr-app.gyp -Goutput_dir=./out/ --depth=. --generator-output=./ -f xcode
 	open ./linux/llmr-app.xcodeproj
 
 # build just xcode project for libllmr
-xcode: config.gypi llmr.gyp
+xcode: deps config.gypi llmr.gyp
 	deps/run_gyp llmr.gyp -Goutput_dir=./out/ --depth=. --generator-output=./ -f xcode
 
 # build OS X app with Xcode
-xproj: config.gypi src macosx/llmr-app.gyp
+xproj: deps config.gypi src macosx/llmr-app.gyp
 	deps/run_gyp macosx/llmr-app.gyp -Goutput_dir=./out/ --depth=. --generator-output=./ -f xcode
 	open ./macosx/llmr-app.xcodeproj
 
 # build OS X app with xcodebuild
-xapp: config.gypi src macosx/llmr-app.gyp
+xapp: deps config.gypi src macosx/llmr-app.gyp
 	deps/run_gyp macosx/llmr-app.gyp -Goutput_dir=./out/ --depth=. --generator-output=./ -f xcode
 	xcodebuild -project ./macosx/llmr-app.xcodeproj
 	open macosx/build/Release/llmr.app
 
 # build iOS app with Xcode
-iproj: config.gypi src ios/llmr-app.gyp
+iproj: deps config.gypi src ios/llmr-app.gyp
 	deps/run_gyp ios/llmr-app.gyp -Goutput_dir=./out/ --depth=. --generator-output=./ -f xcode
 	open ./ios/llmr-app.xcodeproj
 
 # build iOS app with xcodebuild
-iapp: config.gypi src ios/llmr-app.gyp
+iapp: deps config.gypi src ios/llmr-app.gyp
 	deps/run_gyp ios/llmr-app.gyp -Goutput_dir=./out/ --depth=. --generator-output=./ -f xcode
 	xcodebuild -project ./ios/llmr-app.xcodeproj
 	# launch app with ios-sim?
 
-isim: config.gypi src ios/llmr-app.gyp
+isim: deps config.gypi src ios/llmr-app.gyp
 	deps/run_gyp ios/llmr-app.gyp -Goutput_dir=./out/ --depth=. --generator-output=./ -f xcode
 	xcodebuild -project ./ios/llmr-app.xcodeproj -arch i386 -sdk iphonesimulator
 	# does not work
 	#"/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/Applications/iPhone Simulator.app/Contents/MacOS/iPhone Simulator" -SimulateApplication ios/build/Release-iphonesimulator/llmr.app/llmr
 
-test: config.gypi src test/test.gyp
+test: deps config.gypi src test/test.gyp
 	deps/run_gyp test/test.gyp -Goutput_dir=. --depth=. --generator-output=./build/test -f make
 	make -C build/test V=$(V)
 	@for FILE in build/test/Release/test_*; do \
 		$${FILE}; \
 	done
 
+glsl-optimizer: node_modules/glsl-optimizer/build/Release/glslOptimizer.node
+
+node_modules/glsl-optimizer/build/Release/glslOptimizer.node:
+	npm install
+
 clean:
 	-rm -rf out
 	-rm -rf build
diff --git a/package.json b/package.json
index 6402b1d1b..4431471e9 100644
--- a/package.json
+++ b/package.json
@@ -2,6 +2,6 @@
     "name": "llmr-native",
     "version": "0.0.1",
     "dependencies": {
-        "glsl-optimizer": "https://github.com/kkaefer/glsl-optimizer/archive/amalgamation.tar.gz"
+        "glsl-optimizer": "git://github.com/kkaefer/glsl-optimizer.git#amalgamation"
     }
 }