Makefile

CCFLAGS := -O3

default: build/libopus.js

build/libopus.js: libopus
	mkdir -p build
	emcc $(CCFLAGS) -s EXPORTED_FUNCTIONS="['_opus_decoder_create', '_opus_decode_float', '_opus_decoder_destroy']" -Llibopusbuild/lib -lopus -o $@
	@# emcc does not always exit with status false on error, so ensure previous line succeeded
	[ -f build/libopus.js ]
	echo "module.exports = Module" >> build/libopus.js

libopus/config.h: libopus/autogen.sh
	(cd libopus; ./autogen.sh)
	(cd libopus; emconfigure ./configure --prefix="$$PWD/../libopusbuild" --enable-fixed-point)

libopus/autogen.sh:
	git submodule init
	git submodule update

libopus: libopus/config.h
	emmake $(MAKE) -C libopus
	emmake $(MAKE) -C libopus install

browser: src/*.js build/libopus.js
	mkdir -p build/
	./node_modules/.bin/browserify \
		--global-transform browserify-shim \
		--bare \
		--no-detect-globals \
		. \
		> build/opus.js
		
clean:
	$(MAKE) -C libopus clean
	rm -f libopus/configure
	rm -rf build libopusbuild

.PHONY: libopus clean browser default