build: Add buildroot packaging for static build

buildroot/Config.in

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+source "$BR2_EXTERNAL_READYMEDIA_PATH/readymedia/Config.in"

buildroot/build-static.sh

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+#!/bin/bash -e
+if [ $# -ne 1 ]; then
+	echo "Usage: $0 <BUILDROOT_PATH>"
+	exit 1
+fi
+BUILDROOT_DIR=$1
+BR2_DEFCONFIG=$(realpath readymedia_defconfig)
+export BR2_EXTERNAL=$(realpath .)
+cd $BUILDROOT_DIR
+make O=output-readymedia defconfig BR2_DEFCONFIG=${BR2_DEFCONFIG}
+make O=output-readymedia
+echo -e "\n\nStatic binary built in $(realpath output/target/usr/sbin/minidlnad)"
+ls -lh $(realpath output/target/usr/sbin/minidlnad)

buildroot/external.desc

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+name: READYMEDIA
+desc: ReadyMedia external tree

buildroot/external.mk

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+include $(sort $(wildcard $(BR2_EXTERNAL_READYMEDIA_PATH)/*/*.mk))

buildroot/readymedia/Config.in

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+config BR2_PACKAGE_READYMEDIA
+	bool "readymedia"
+	depends on BR2_USE_WCHAR # flac
+	depends on BR2_USE_MMU # fork
+	depends on BR2_TOOLCHAIN_HAS_THREADS
+	depends on BR2_PACKAGE_FFMPEG_ARCH_SUPPORTS
+	select BR2_PACKAGE_FFMPEG
+	select BR2_PACKAGE_FLAC
+	select BR2_PACKAGE_LIBVORBIS # selects libogg
+	select BR2_PACKAGE_LIBOGG
+	select BR2_PACKAGE_LIBID3TAG # selects zlib
+	select BR2_PACKAGE_LIBEXIF
+	select BR2_PACKAGE_JPEG
+	select BR2_PACKAGE_SQLITE
+	help
+	  MiniDLNA (aka ReadyDLNA) is server software with the aim of
+	  being fully compliant with DLNA/UPnP-AV clients.
+
+	  http://minidlna.sourceforge.net/
+
+comment "readymedia needs a toolchain w/ threads, wchar"
+	depends on BR2_USE_MMU
+	depends on BR2_PACKAGE_FFMPEG_ARCH_SUPPORTS
+	depends on !BR2_TOOLCHAIN_HAS_THREADS || !BR2_USE_WCHAR

buildroot/readymedia/readymedia.mk

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+################################################################################
+#
+# readymedia
+#
+################################################################################
+
+READYMEDIA_VERSION = v1_3_1
+READYMEDIA_SITE = https://git.code.sf.net/p/minidlna/git
+READYMEDIA_SITE_METHOD = git
+READYMEDIA_LICENSE = GPL-2.0, BSD-3-Clause
+READYMEDIA_LICENSE_FILES = COPYING LICENCE.miniupnpd
+READYMEDIA_CPE_ID_VENDOR = readymedia_project
+READYMEDIA_CPE_ID_PRODUCT = readymedia
+
+READYMEDIA_DEPENDENCIES = \
+	$(TARGET_NLS_DEPENDENCIES) \
+	ffmpeg flac libvorbis libogg libid3tag libexif jpeg sqlite \
+	host-xutil_makedepend
+
+READYMEDIA_CONF_OPTS = \
+	--enable-static \
+	--enable-tivo \
+	--enable-lto
+
+define READYMEDIA_RUN_AUTOGEN
+    cd $(@D) && PATH=$(BR_PATH) ./autogen.sh
+endef
+READYMEDIA_PRE_CONFIGURE_HOOKS = READYMEDIA_RUN_AUTOGEN
+
+$(eval $(autotools-package))

buildroot/readymedia_defconfig

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+BR2_SHARED_STATIC_LIBS=y
+BR2_TOOLCHAIN_BUILDROOT_VENDOR="readymedia"
+BR2_TOOLCHAIN_BUILDROOT_MUSL=y
+BR2_KERNEL_HEADERS_VERSION=y
+BR2_DEFAULT_KERNEL_VERSION="2.6.32"
+BR2_PACKAGE_HOST_LINUX_HEADERS_CUSTOM_REALLY_OLD=y
+BR2_BINUTILS_VERSION_2_37_X=y
+BR2_GCC_VERSION_11_X=y
+BR2_GCC_ENABLE_LTO=y
+BR2_TARGET_GENERIC_HOSTNAME="readymedia"
+BR2_INIT_NONE=y
+# BR2_TARGET_ENABLE_ROOT_LOGIN is not set
+# BR2_TARGET_GENERIC_GETTY is not set
+# BR2_TARGET_GENERIC_REMOUNT_ROOTFS_RW is not set
+# BR2_PACKAGE_BUSYBOX is not set
+BR2_PACKAGE_FFMPEG_ENCODERS=""
+BR2_PACKAGE_FFMPEG_DECODERS="aac alac eac3 flac flv h264 mp3 mpeg2video mpeg4 pcm_s16be pcm_s16le vorbis wmalossless wmapro wmav1 wmav2"
+BR2_PACKAGE_FFMPEG_MUXERS=""
+BR2_PACKAGE_FFMPEG_DEMUXERS="aac ac3 aiff asf avi dts dv eac3 flac flv h261 h263 h264 matroska mjpeg mov m4v mp3 mpegps mpegts mpegtsraw mpegvideo ogg vc1 wav"
+BR2_PACKAGE_FFMPEG_PARSERS="aac ac3 dvbsub dvdsub flac h261 h263 h264 mjpeg mlp mpeg4video mpegaudio mpegvideo vc1 vorbis vp3 vp8"
+BR2_PACKAGE_FFMPEG_BSFS=""
+BR2_PACKAGE_FFMPEG_PROTOCOLS="file"
+BR2_PACKAGE_FFMPEG_FILTERS=""
+# BR2_PACKAGE_FFMPEG_INDEVS is not set
+# BR2_PACKAGE_FFMPEG_OUTDEVS is not set
+BR2_PACKAGE_FFMPEG_EXTRACONF="--enable-small --disable-pic --disable-avfilter --disable-libvorbis --disable-network --disable-muxer=ogg"
+# BR2_PACKAGE_IFUPDOWN_SCRIPTS is not set
+BR2_PACKAGE_READYMEDIA=y