Update buidlroot to version 2016.08.1

bsp/buildroot/package/flannel/Config.in

@@ -0,0 +1,15 @@
+comment "flannel needs a toolchain w/ threads"
+	depends on BR2_PACKAGE_HOST_GO_ARCH_SUPPORTS && \
+		BR2_PACKAGE_HOST_GO_CGO_LINKING_SUPPORTS
+	depends on !BR2_TOOLCHAIN_HAS_THREADS
+
+config BR2_PACKAGE_FLANNEL
+	bool "flannel"
+	depends on BR2_PACKAGE_HOST_GO_ARCH_SUPPORTS
+	depends on BR2_PACKAGE_HOST_GO_CGO_LINKING_SUPPORTS
+	depends on BR2_TOOLCHAIN_HAS_THREADS
+	help
+	  Flannel is a virtual network that gives a subnet to each
+	  host for use with container runtimes.
+
+	  https://github.com/coreos/flannel

bsp/buildroot/package/flannel/flannel.hash

@@ -0,0 +1,2 @@
+# Locally computed:
+sha256 dbbcb08c0e70713b0c920387a9967e5b30ef833c8118c847edbbca4f68ff0562 v0.5.5.tar.gz

bsp/buildroot/package/flannel/flannel.mk

@@ -0,0 +1,46 @@
+################################################################################
+#
+# flannel
+#
+################################################################################
+
+FLANNEL_VERSION = v0.5.5
+FLANNEL_SITE = https://github.com/coreos/flannel/archive
+FLANNEL_SOURCE = $(FLANNEL_VERSION).tar.gz
+
+FLANNEL_LICENSE = Apache-2.0
+FLANNEL_LICENSE_FILES = LICENSE
+
+FLANNEL_DEPENDENCIES = host-go
+
+FLANNEL_MAKE_ENV = \
+	$(HOST_GO_TARGET_ENV) \
+	GOBIN="$(@D)/bin" \
+	GOPATH="$(@D)/gopath" \
+	CGO_ENABLED=1
+
+FLANNEL_GLDFLAGS = \
+	-X github.com/coreos/flannel/version.Version=$(FLANNEL_VERSION) \
+
+ifeq ($(BR2_STATIC_LIBS),y)
+FLANNEL_GLDFLAGS += -extldflags '-static'
+endif
+
+define FLANNEL_CONFIGURE_CMDS
+	# Put sources at prescribed GOPATH location.
+	mkdir -p $(@D)/gopath/src/github.com/coreos
+	ln -s $(@D) $(@D)/gopath/src/github.com/coreos/flannel
+endef
+
+define FLANNEL_BUILD_CMDS
+	cd $(@D) && $(FLANNEL_MAKE_ENV) $(HOST_DIR)/usr/bin/go \
+		build -v -o $(@D)/bin/flanneld -ldflags "$(FLANNEL_GLDFLAGS)" .
+endef
+
+define FLANNEL_INSTALL_TARGET_CMDS
+	# Install flannel to its well known location.
+	$(INSTALL) -D -m 0755 $(@D)/bin/flanneld $(TARGET_DIR)/opt/bin/flanneld
+	$(INSTALL) -D -m 0755 $(@D)/dist/mk-docker-opts.sh $(TARGET_DIR)/opt/bin/mk-docker-opts.sh
+endef
+
+$(eval $(generic-package))