JS_SOURCES = $(wildcard js/*.js) $(wildcard js/*/*.js) all: static/bundle.js static/react-widgets static/bundle.js: $(JS_SOURCES) browserify -t [ babelify --presets [ react ] ] js/main.js -o static/bundle.js static/react-widgets: node_modules/react-widgets/dist rsync -a node_modules/react-widgets/dist/ static/react-widgets/ .PHONY = all