Merge pull request #164 from nickaknudson/feature/buildroot

added client compilation support for TARGET=BUILDROOT

README.md

@@ -35,6 +35,7 @@ Please follow this [guide](doc/build.md) to build Snapcast for
 * [macOS](doc/build.md#macos-native)
 * [Android](doc/build.md#android-cross-compile)
 * [OpenWrt](doc/build.md#openwrt-cross-compile)
+* [Buildroot](doc/build.md#buildroot-cross-compile)
 
 ###Install debian packages
 Download the debian package for your CPU architecture from the [latest release page](https://github.com/badaix/snapcast/releases/latest), e.g. for Raspberry pi `snapclient_0.x.x_armhf.deb`

buildroot/Config.in

@@ -0,0 +1 @@
+source "$BR2_EXTERNAL_SNAPCAST_PATH/package/snapcast/Config.in"

buildroot/external.desc

@@ -0,0 +1 @@
+name: SNAPCAST

buildroot/external.mk

@@ -0,0 +1 @@
+include $(sort $(wildcard $(BR2_EXTERNAL_SNAPCAST_PATH)/package/*/*.mk))

buildroot/package/snapcast/Config.in

@@ -0,0 +1,4 @@
+config BR2_PACKAGE_SNAPCAST
+	bool "snapcast"
+	help
+	  Synchronous multi-room audio player

buildroot/package/snapcast/S99snapclient

@@ -0,0 +1,35 @@
+#! /bin/sh
+
+start() {
+	echo -n "Starting snapclient: "
+	start-stop-daemon -S -q -b -x snapclient
+	[ $? = 0 ] && echo "OK" || echo "FAIL"
+}
+
+stop() {
+	echo -n "Stopping snapclient: "
+	start-stop-daemon -K -q -x snapclient
+	[ $? = 0 ] && echo "OK" || echo "FAIL"
+}
+
+restart() {
+	stop
+	start
+}
+
+case "$1" in
+  start)
+	start
+	;;
+  stop)
+	stop
+	;;
+  restart|reload)
+	restart
+	;;
+  *)
+	echo "Usage: $0 {start|stop|restart}"
+	exit 1
+esac
+
+exit $?

buildroot/package/snapcast/snapcast.mk

@@ -0,0 +1,32 @@
+################################################################################
+#
+# snapcast
+#
+################################################################################
+
+SNAPCAST_VERSION = master
+SNAPCAST_SITE = https://github.com/badaix/snapcast
+SNAPCAST_SITE_METHOD = git
+SNAPCAST_DEPENDENCIES = libogg alsa-lib # libstdcpp libavahi-client libatomic libflac libvorbisidec
+SNAPCAST_LICENSE = GPLv3
+SNAPCAST_LICENSE_FILES = COPYING
+
+# http://lists.busybox.net/pipermail/buildroot/2013-March/069811.html
+define SNAPCAST_EXTRACT_CMDS
+	rm -rf $(@D)
+	(git clone --depth 1 $(SNAPCAST_SITE) $(@D) && \
+	cd $(@D)/externals && \
+	git submodule update --init --recursive)
+	touch $(@D)/.stamp_downloaded
+endef
+
+define SNAPCAST_BUILD_CMDS
+	$(TARGET_CONFIGURE_OPTS) $(MAKE) -C $(@D)/client TARGET=BUILDROOT
+endef
+
+define SNAPCAST_INSTALL_TARGET_CMDS
+	$(INSTALL) -m 0755 -D $(@D)/client/snapclient $(TARGET_DIR)/usr/sbin/snapclient
+	$(INSTALL) -m 0755 -D $(SNAPCAST_PKGDIR)/S99snapclient $(TARGET_DIR)/etc/init.d/S99snapclient
+endef
+
+$(eval $(generic-package))

client/Makefile

@@ -36,6 +36,12 @@ CXXFLAGS += -pthread -DNO_CPP11_STRING -DHAS_TREMOR -DHAS_ALSA -DHAS_AVAHI -DHAS
 LDFLAGS   = -lasound -lvorbisidec -logg -lFLAC -lavahi-client -lavahi-common -latomic
 OBJ      += player/alsaPlayer.o browseZeroConf/browseAvahi.o
 
+else ifeq ($(TARGET), BUILDROOT)
+
+CXXFLAGS += -pthread -DNO_CPP11_STRING -DHAS_TREMOR -DHAS_ALSA -DHAS_AVAHI -DHAS_DAEMON
+LDFLAGS  += -lasound -lvorbisidec -logg -lFLAC -lavahi-client -lavahi-common -latomic
+OBJ      += player/alsaPlayer.o browseZeroConf/browseAvahi.o
+
 else ifeq ($(TARGET), MACOS)
 
 CXX       = /usr/bin/g++

doc/build.md

@@ -200,3 +200,34 @@ Build Snapcast:
     $ make package/sxx/snapcast/compile
 
 The packaged `ipk` files are in `<buildroot dir>/bin/ar71xx/packages/base/snap[client|server]_x.x.x_ar71xx.ipk`
+
+##Buildroot (Cross compile)
+This example will show you how to add snapcast to [Buildroot](https://buildroot.org/).
+
+###Buildroot setup
+Buildroot recommends [keeping customizations outside of the main Buildroot directory](https://buildroot.org/downloads/manual/manual.html#outside-br-custom) which is what this example will walk through.
+
+Clone Buildroot to some place in your home directory (`<buildroot dir>`):
+
+    $ git clone --branch BUILDROOT_VERSION --depth=1 git://git.buildroot.net/buildroot
+
+The `<snapcast dir>/buildroot` is currently setup as an external Buildroot folder following the [recommended structure](https://buildroot.org/downloads/manual/manual.html#customize-dir-structure). As of [Buildroot 2016.11](https://git.buildroot.net/buildroot/tag/?h=2016.11) you may specify multiple BR2_EXTERNAL trees. If you are using a version of Buildroot prior to this, then you will need to manually merge `<snapcast dir>/buildroot` with your existing Buildroot external tree.
+
+Now add the following packages to your Buildroot `.config` file:
+
+    BR2_PACKAGE_FLAC=y
+    BR2_PACKAGE_LIBOGG=y
+    BR2_PACKAGE_TREMOR=y
+    BR2_PACKAGE_SNAPCAST=y
+
+Or use `menuconfig` to add them graphically:
+
+    $ cd <buildroot dir> && make BR2_EXTERNAL=<snapcast dir>/buildroot menuconfig
+
+Or if you have another Buildroot external tree (`<buildroot external dir>`):
+
+     $ cd <buildroot dir> && make BR2_EXTERNAL=<snapcast dir>/buildroot:<buildroot external dir> menuconfig
+
+And finally run the build:
+
+    $ cd <buildroot dir> && make BR2_EXTERNAL=<snapcast dir>/buildroot:<buildroot external dir>