diff --git a/.github/workflows/hi3516ev200_images.yml b/.github/workflows/hi3516ev200_images.yml
new file mode 100644
index 00000000..e1e5436e
--- /dev/null
+++ b/.github/workflows/hi3516ev200_images.yml
@@ -0,0 +1,129 @@
+name: OpenIPC for Hi3516Ev200
+
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - "v*"
+
+jobs:
+  build_core:
+    name: OpenIPC v2.0 for Hi3516Ev200
+    runs-on: ubuntu-18.04
+
+    steps:
+
+      - name: Checkout
+        id: checkout
+        uses: actions/checkout@v2
+
+      - name: Install build dependencies
+        id: install
+        run: |
+          make install-deps
+          mkdir -p tmp
+
+      - name: Free disk space
+        id: freshing
+        run: |
+          sudo swapoff -a
+          sudo rm -f /swapfile
+          sudo apt clean
+          docker rmi $(docker image ls -aq)
+          df -h
+
+      - name: Prepare buildroot
+        id: prepare
+        run: |
+          HEAD_TAG=$(git tag --points-at HEAD)
+          GIT_HASH=$(git rev-parse --short $GITHUB_SHA)
+          BRANCH_NAME=$(echo $GITHUB_REF | cut -d'/' -f 3)
+          if [ -z "$HEAD_TAG" ]; then
+            TAG_NAME="latest"
+            RELEASE_NAME="Development Build"
+            PRERELEASE=true
+          else
+            TAG_NAME=${{ github.ref }}
+            RELEASE_NAME="Release ${{ github.ref }}"
+            PRERELEASE=false
+          fi
+          echo "GIT_HASH=$GIT_HASH" >> $GITHUB_ENV
+          echo "TAG_NAME=$TAG_NAME" >> $GITHUB_ENV
+          echo "RELEASE_NAME=$RELEASE_NAME" >> $GITHUB_ENV
+          echo "PRERELEASE=$PRERELEASE" >> $GITHUB_ENV
+          echo "BRANCH_NAME=$BRANCH_NAME" >> $GITHUB_ENV
+          cd $GITHUB_WORKSPACE
+          make prepare
+
+      - name: Build Hi3516Ev200 firmware
+        id: build-hi3516ev200-firmware
+        continue-on-error: true
+        run: |
+          ARCHIVE_FW="${GITHUB_WORKSPACE}/output/images/openipc.hi3516ev200-br.tgz"
+          echo "ARCHIVE_FW=$ARCHIVE_FW" >> $GITHUB_ENV
+          cd $GITHUB_WORKSPACE
+          make -j$(($(nproc)+1)) BOARD=unknown_unknown_hi3516ev200_openipc all
+          tar -C ${GITHUB_WORKSPACE}/output/images -cvzf $ARCHIVE_FW rootfs.squashfs uImage
+
+      - name: Build Hi3516Ev200 SDK
+        id: build-hi3516ev200-sdk
+        continue-on-error: true
+        run: |
+          ARCHIVE_SDK="${GITHUB_WORKSPACE}/output/images/arm-openipc-linux-musleabi_sdk-buildroot.tar.gz"
+          echo "ARCHIVE_SDK=$ARCHIVE_SDK" >> $GITHUB_ENV
+          cd $GITHUB_WORKSPACE/output
+          make sdk
+
+      - name: Send warning message to telegram channel
+        env:
+          TG_TOKEN: ${{ secrets.TELEGRAM_TOKEN_BOT_OPENIPC }}
+          TG_CHANNEL: ${{ secrets.TELEGRAM_CHANNEL_OPENIPC_DEV }}
+        if: steps.build-hi3516ev200-firmware.outcome != 'success' || steps.build-hi3516ev200-sdk.outcome != 'success'
+        run: |
+          TG_OPTIONS="-s --connect-timeout 5 --max-time 15"
+          TG_NOTIFY="Warning, Buildroot compiling error..."
+          TG_HEADER=$(echo -e "\r\n$TG_NOTIFY \r\n\r\nCommit: $GIT_HASH \r\nBranch: $BRANCH_NAME \r\nTag: $TAG_NAME \r\n\r\n\xE2\x9A\xA0 GitHub Actions")
+          curl $TG_OPTIONS -H "Content-Type: multipart/form-data" -X POST https://api.telegram.org/bot$TG_TOKEN/sendMessage \
+            -F chat_id=$TG_CHANNEL -F text="$TG_HEADER"
+
+      - name: Create release
+        uses: actions/create-release@v1
+        continue-on-error: true
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ env.TAG_NAME }}
+          release_name: ${{ env.RELEASE_NAME }}
+          draft: false
+          prerelease: ${{ env.PRERELEASE }}
+
+      - name: Upload FW to release
+        uses: svenstaro/upload-release-action@v2
+        continue-on-error: true
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          file: ${{ env.ARCHIVE_FW }}
+          asset_name: "openipc.hi3516ev200-br.tgz"
+          tag: ${{ env.TAG_NAME }}
+          overwrite: true
+
+      - name: Upload SDK to release
+        uses: svenstaro/upload-release-action@v2
+        continue-on-error: true
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          file: ${{ env.ARCHIVE_SDK }}
+          asset_name: "arm-openipc-linux-musleabi_sdk-buildroot.tar.gz"
+          tag: ${{ env.TAG_NAME }}
+          overwrite: true
+
+      - name: Send binary file to telegram channel
+        env:
+          TG_TOKEN: ${{ secrets.TELEGRAM_TOKEN_BOT_OPENIPC }}
+          TG_CHANNEL: ${{ secrets.TELEGRAM_CHANNEL_OPENIPC_DEV }}
+        run: |
+          TG_OPTIONS="-s --connect-timeout 5 --max-time 15"
+          TG_HEADER=$(echo -e "\r\nCommit: $GIT_HASH \r\nBranch: $BRANCH_NAME \r\nTag: $TAG_NAME \r\n\r\n\xE2\x9C\x85 GitHub Actions")
+          curl $TG_OPTIONS -H "Content-Type: multipart/form-data" -X POST https://api.telegram.org/bot$TG_TOKEN/sendDocument \
+            -F chat_id=$TG_CHANNEL -F document="@$ARCHIVE_FW" -F caption="$TG_HEADER"
diff --git a/.github/workflows/hi3516ev300_images.yml b/.github/workflows/hi3516ev300_images.yml
new file mode 100644
index 00000000..debbc84c
--- /dev/null
+++ b/.github/workflows/hi3516ev300_images.yml
@@ -0,0 +1,129 @@
+name: OpenIPC for Hi3516Ev300
+
+on:
+  push:
+    branches:
+      - main
+    tags:
+      - "v*"
+
+jobs:
+  build_core:
+    name: OpenIPC v2.0 for Hi3516Ev300
+    runs-on: ubuntu-18.04
+
+    steps:
+
+      - name: Checkout
+        id: checkout
+        uses: actions/checkout@v2
+
+      - name: Install build dependencies
+        id: install
+        run: |
+          make install-deps
+          mkdir -p tmp
+
+      - name: Free disk space
+        id: freshing
+        run: |
+          sudo swapoff -a
+          sudo rm -f /swapfile
+          sudo apt clean
+          docker rmi $(docker image ls -aq)
+          df -h
+
+      - name: Prepare buildroot
+        id: prepare
+        run: |
+          HEAD_TAG=$(git tag --points-at HEAD)
+          GIT_HASH=$(git rev-parse --short $GITHUB_SHA)
+          BRANCH_NAME=$(echo $GITHUB_REF | cut -d'/' -f 3)
+          if [ -z "$HEAD_TAG" ]; then
+            TAG_NAME="latest"
+            RELEASE_NAME="Development Build"
+            PRERELEASE=true
+          else
+            TAG_NAME=${{ github.ref }}
+            RELEASE_NAME="Release ${{ github.ref }}"
+            PRERELEASE=false
+          fi
+          echo "GIT_HASH=$GIT_HASH" >> $GITHUB_ENV
+          echo "TAG_NAME=$TAG_NAME" >> $GITHUB_ENV
+          echo "RELEASE_NAME=$RELEASE_NAME" >> $GITHUB_ENV
+          echo "PRERELEASE=$PRERELEASE" >> $GITHUB_ENV
+          echo "BRANCH_NAME=$BRANCH_NAME" >> $GITHUB_ENV
+          cd $GITHUB_WORKSPACE
+          make prepare
+
+      - name: Build Hi3516Ev300 firmware
+        id: build-hi3516ev300-firmware
+        continue-on-error: true
+        run: |
+          ARCHIVE_FW="${GITHUB_WORKSPACE}/output/images/openipc.hi3516ev300-br.tgz"
+          echo "ARCHIVE_FW=$ARCHIVE_FW" >> $GITHUB_ENV
+          cd $GITHUB_WORKSPACE
+          make BOARD=unknown_unknown_hi3516ev300_openipc all
+          tar -C ${GITHUB_WORKSPACE}/output/images -cvzf $ARCHIVE_FW rootfs.squashfs uImage
+
+      - name: Build Hi3516Ev300 SDK
+        id: build-hi3516ev300-sdk
+        continue-on-error: true
+        run: |
+          ARCHIVE_SDK="${GITHUB_WORKSPACE}/output/images/arm-openipc-linux-musleabi_sdk-buildroot.tar.gz"
+          echo "ARCHIVE_SDK=$ARCHIVE_SDK" >> $GITHUB_ENV
+          cd $GITHUB_WORKSPACE/output
+          make sdk
+
+      - name: Send warning message to telegram channel
+        env:
+          TG_TOKEN: ${{ secrets.TELEGRAM_TOKEN_BOT_OPENIPC }}
+          TG_CHANNEL: ${{ secrets.TELEGRAM_CHANNEL_OPENIPC_DEV }}
+        if: steps.build-hi3516ev300-firmware.outcome != 'success' || steps.build-hi3516ev300-sdk.outcome != 'success'
+        run: |
+          TG_OPTIONS="-s --connect-timeout 5 --max-time 15"
+          TG_NOTIFY="Warning, Buildroot compiling error..."
+          TG_HEADER=$(echo -e "\r\n$TG_NOTIFY \r\n\r\nCommit: $GIT_HASH \r\nBranch: $BRANCH_NAME \r\nTag: $TAG_NAME \r\n\r\n\xE2\x9A\xA0 GitHub Actions")
+          curl $TG_OPTIONS -H "Content-Type: multipart/form-data" -X POST https://api.telegram.org/bot$TG_TOKEN/sendMessage \
+            -F chat_id=$TG_CHANNEL -F text="$TG_HEADER"
+
+      - name: Create release
+        uses: actions/create-release@v1
+        continue-on-error: true
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          tag_name: ${{ env.TAG_NAME }}
+          release_name: ${{ env.RELEASE_NAME }}
+          draft: false
+          prerelease: ${{ env.PRERELEASE }}
+
+      - name: Upload FW to release
+        uses: svenstaro/upload-release-action@v2
+        continue-on-error: true
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          file: ${{ env.ARCHIVE_FW }}
+          asset_name: "openipc.hi3516ev300-br.tgz"
+          tag: ${{ env.TAG_NAME }}
+          overwrite: true
+
+      - name: Upload SDK to release
+        uses: svenstaro/upload-release-action@v2
+        continue-on-error: true
+        with:
+          repo_token: ${{ secrets.GITHUB_TOKEN }}
+          file: ${{ env.ARCHIVE_SDK }}
+          asset_name: "arm-openipc-linux-musleabi_sdk-buildroot.tar.gz"
+          tag: ${{ env.TAG_NAME }}
+          overwrite: true
+
+      - name: Send binary file to telegram channel
+        env:
+          TG_TOKEN: ${{ secrets.TELEGRAM_TOKEN_BOT_OPENIPC }}
+          TG_CHANNEL: ${{ secrets.TELEGRAM_CHANNEL_OPENIPC_DEV }}
+        run: |
+          TG_OPTIONS="-s --connect-timeout 5 --max-time 15"
+          TG_HEADER=$(echo -e "\r\nCommit: $GIT_HASH \r\nBranch: $BRANCH_NAME \r\nTag: $TAG_NAME \r\n\r\n\xE2\x9C\x85 GitHub Actions")
+          curl $TG_OPTIONS -H "Content-Type: multipart/form-data" -X POST https://api.telegram.org/bot$TG_TOKEN/sendDocument \
+            -F chat_id=$TG_CHANNEL -F document="@$ARCHIVE_FW" -F caption="$TG_HEADER"
diff --git a/.gitignore b/.gitignore
new file mode 100644
index 00000000..a442e57a
--- /dev/null
+++ b/.gitignore
@@ -0,0 +1,4 @@
+buildroot-2021.02/
+buildroot-2020.02/
+buildroot-2019.11.1/
+output/
diff --git a/Makefile b/Makefile
new file mode 100644
index 00000000..bba21096
--- /dev/null
+++ b/Makefile
@@ -0,0 +1,137 @@
+
+ROOT_DIR      := $(CURDIR)
+BR_VER        := 2021.02
+BR_DIR        := $(ROOT_DIR)/buildroot-$(BR_VER)
+BR_EXT_DIR    := $(ROOT_DIR)/br-ext-chip-hisilicon
+SCRIPTS_DIR   := $(ROOT_DIR)/scripts
+BOARDS        := $(shell ls -1 $(BR_EXT_DIR)/configs)
+
+.PHONY: usage help prepare install-deps all toolchain-params run-tests overlayed-rootfs-%
+
+usage help:
+	@echo \
+	"\n\
+	BR-OpenIPC usage:\n\
+	  - make help|usage - print this help\n\
+	  - make install-deps - install system deps\n\
+	  - make prepare - download and unpack buildroot\n\
+	  - make list-configs - show avalible hardware configs list\n\
+	  - make BOARD=<BOARD-ID> board-info - write to stdout information about selected board\n\
+	  - make BOARD=<BOARD-ID> all - build all needed for a board (toolchain, kernel and rootfs images)\n\
+	  - make overlayed-rootfs-<FS-TYPE> ROOTFS_OVERLAYS=... - create rootfs image that contains original\n\
+	  Buildroot target dir overlayed by some custom layers.\n\
+	  Example:\n\
+	      make overlayed-rootfs-squashfs ROOTFS_OVERLAYS=./examples/echo_server/overlay\n\
+	"
+
+
+prepare: $(BR_DIR)
+$(ROOT_DIR)/buildroot-$(BR_VER).tar.gz:
+	wget -O $@ --header="Host: buildroot.org" --no-check-certificate https://buildroot.org/downloads/buildroot-$(BR_VER).tar.gz
+
+$(BR_DIR): $(ROOT_DIR)/buildroot-$(BR_VER).tar.gz
+	tar -C $(ROOT_DIR) -xf buildroot-$(BR_VER).tar.gz
+	rm -f buildroot-$(BR_VER).tar.gz
+
+
+install-deps:
+	DEBIAN_FRONTEND=noninteractive sudo apt-get update && sudo apt-get -y install build-essential make libncurses-dev wget
+
+
+%_info:
+	@echo
+	@cat $(BR_EXT_DIR)/board/$(subst _info,,$@)/config | grep RAM_LINUX_SIZE
+	$(eval VENDOR 	:= $(shell echo $@ | cut -d "_" -f 1))
+	$(eval FAMILY 	:= $(shell cat $(BR_EXT_DIR)/board/$(subst _info,,$@)/config | grep FAMILY | cut -d "=" -f 2))
+	$(eval CHIP	:= $(shell echo $@ | cut -d "_" -f 3))
+	@cat $(BR_EXT_DIR)/board/$(FAMILY)/$(CHIP).config
+
+
+list-configs:
+	@echo
+	@ls -1 $(BR_EXT_DIR)/configs
+
+
+# -------------------------------------------------------------------------------------------------
+OUT_DIR ?= $(ROOT_DIR)/output
+
+# Buildroot considers relative paths relatively to its' own root directory. So we use absolute paths
+# to avoid ambiguity
+override OUT_DIR := $(abspath $(OUT_DIR))
+BOARD_MAKE := $(MAKE) -C $(BR_DIR) BR2_EXTERNAL=$(BR_EXT_DIR) O=$(OUT_DIR)
+
+define CREATE_TOOLCHAIN_PARAMS
+    eval $$($(BOARD_MAKE) -s --no-print-directory VARS=GNU_TARGET_NAME printvars) \
+    && $(SCRIPTS_DIR)/create_toolchain_binding.sh $(OUT_DIR)/host/bin $$GNU_TARGET_NAME \
+    > $(OUT_DIR)/toolchain-params.mk
+endef
+
+# -------------------------------------------------------------------------------------------------
+$(OUT_DIR)/.config:
+ifndef BOARD
+	@echo "Variable BOARD must be defined to initialize output directory" >&2 && exit 1
+endif
+	$(BOARD_MAKE) BR2_DEFCONFIG=$(BR_EXT_DIR)/configs/$(BOARD)_defconfig defconfig
+
+
+$(OUT_DIR)/toolchain-params.mk: $(OUT_DIR)/.config $(SCRIPTS_DIR)/create_toolchain_binding.sh
+	$(CREATE_TOOLCHAIN_PARAMS)
+
+
+# -------------------------------------------------------------------------------------------------
+# build all needed for a board
+all: $(OUT_DIR)/.config $(OUT_DIR)/toolchain-params.mk
+	$(BOARD_MAKE) all
+
+
+# -------------------------------------------------------------------------------------------------
+# re-create params file
+toolchain-params:
+	$(CREATE_TOOLCHAIN_PARAMS)
+
+# -------------------------------------------------------------------------------------------------
+# create rootfs image that contains original Buildroot target dir overlayed by some custom layers
+# space-separated list of overlays
+
+ROOTFS_OVERLAYS ?=
+# overlayed rootfs directory
+ROOTFS_OVERLAYED_DIR ?= $(OUT_DIR)/target-overlayed
+# overlayed rootfs image's name (without prefix)
+ROOTFS_OVERLAYED_IMAGE ?= rootfs-overlayed
+
+overlayed-rootfs-%: $(OUT_DIR)/.config
+	$(SCRIPTS_DIR)/create_overlayed_rootfs.sh $(ROOTFS_OVERLAYED_DIR) $(OUT_DIR)/target $(ROOTFS_OVERLAYS)
+	$(BOARD_MAKE) $(subst overlayed-,,$@) \
+	    BASE_TARGET_DIR=$(abspath $(ROOTFS_OVERLAYED_DIR)) \
+	    ROOTFS_$(call UPPERCASE,$(subst overlayed-rootfs-,,$@))_FINAL_IMAGE_NAME=$(ROOTFS_OVERLAYED_IMAGE).$(subst overlayed-rootfs-,,$@)
+
+
+# -------------------------------------------------------------------------------------------------
+board-info:
+	@cat $(BR_EXT_DIR)/board/$(BOARD)/config | grep RAM_LINUX_SIZE
+	$(eval VENDOR := $(shell echo $(BOARD) | cut -d "_" -f 1))
+	$(eval FAMILY := $(shell cat $(BR_EXT_DIR)/board/$(BOARD)/config | grep FAMILY | cut -d "=" -f 2))
+	$(eval CHIP   := $(shell echo $(BOARD) | cut -d "_" -f 3))
+	@cat $(BR_EXT_DIR)/board/$(FAMILY)/$(CHIP).config
+	@cat $(BR_EXT_DIR)/board/$(BOARD)/config
+
+
+# -------------------------------------------------------------------------------------------------
+# such targets (with trimmed `br-` prefix) are passed to Buildroot's Makefile
+br-%: $(OUT_DIR)/.config
+	$(BOARD_MAKE) $(subst br-,,$@)
+
+
+# -------------------------------------------------------------------------------------------------
+run-tests:
+	$(MAKE) -C $(ROOT_DIR)/tests
+
+
+# -------------------------------------------------------------------------------------------------
+# there are some extra targets of specific packages
+include $(sort $(wildcard $(ROOT_DIR)/extra/*.mk))
+
+
+# -------------------------------------------------------------------------------------------------
+# util stuff is below
+UPPERCASE = $(shell echo $(1) | tr a-z A-Z)
diff --git a/NOTIFY.md b/NOTIFY.md
new file mode 100644
index 00000000..b51e45c9
--- /dev/null
+++ b/NOTIFY.md
@@ -0,0 +1,68 @@
+# openipc-v2.0
+
+OpenIPC v2.0 based on Buildroot
+
+[![Test building...](https://github.com/FlyRouter/openipc-v2.0/actions/workflows/main.yml/badge.svg)](https://github.com/FlyRouter/openipc-v2.0/actions/workflows/main.yml)
+
+-----
+
+## Quick Start for Hi3516Ev300
+
+```
+make prepare
+make -j$(($(nproc)+1)) BOARD=unknown_unknown_hi3516ev300_unknown all
+```
+
+Execute the commands above and your files will be in the directory **output/images**
+
+-----
+
+## ToDo support
+
+* br-ext-chip-anyka
+* br-ext-chip-fullhan
+* br-ext-chip-goke
+* br-ext-chip-grainmedia
+* br-ext-chip-ingenic
+
+* br-ext-chip-infineon
+
+-----
+
+## Other strings
+
+```
+#
+# make help
+# make install-deps
+# make prepare
+# make list-configs
+#
+# make busybox-{dirclean,rebuild}
+# make fwprintenv-ng-{dirclean,rebuild}
+# make hisilicon-osdrv4-{dirclean,rebuild}
+# make ipctool-{dirclean,rebuild}
+# make jpeg-turbo-{dirclean,rebuild}
+# make libevent-mini-{dirclean,rebuild}
+# make linux-{dirclean,rebuild}
+# make majestic-{dirclean,rebuild}
+# make uboot-tools-fwprintenv-{dirclean,rebuild}
+#
+# make BOARD=unknown_unknown_hi3516ev300_unknown board-info
+# make BOARD=unknown_unknown_hi3516ev300_unknown all && 2dolphin
+#
+# make BOARD=unknown_unknown_xm530_unknown board-info
+# make BOARD=unknown_unknown_xm530_unknown all
+#
+# cd output ; make sdk
+#
+# tag="v21.04.10.3"
+#
+# git pull
+# git push
+# git tag ${tag} -m "Jump to ${tag}"
+# git push origin --tags
+# git push --follow-tags
+#
+```
+
diff --git a/README.md b/README.md
index 7cf69828..79dfa017 100644
--- a/README.md
+++ b/README.md
@@ -1,3 +1,7 @@
 # Experimental project - openipc-2.1
 
 **All information about the project is available in our [Wiki](https://github.com/OpenIPC/openipc-2.1/wiki)**
+
+[![Test building...](https://github.com/OpenIPC/openipc-2.1/actions/workflows/hi3516ev200_images.yml/badge.svg)](https://github.com/OpenIPC/openipc-2.1/actions/workflows/hi3516ev200_images.yml)
+
+[![Test building...](https://github.com/OpenIPC/openipc-2.1/actions/workflows/hi3516ev300_images.yml/badge.svg)](https://github.com/OpenIPC/openipc-2.1/actions/workflows/hi3516ev300_images.yml)
\ No newline at end of file
diff --git a/br-ext-chip-sigmastar/.empty b/br-ext-chip-sigmastar/.empty
new file mode 100644
index 00000000..e69de29b
diff --git a/scripts/create_overlayed_rootfs.sh b/scripts/create_overlayed_rootfs.sh
new file mode 100755
index 00000000..64134885
--- /dev/null
+++ b/scripts/create_overlayed_rootfs.sh
@@ -0,0 +1,21 @@
+#!/bin/bash
+
+DST=$1
+shift
+
+rm -rf $DST
+mkdir -p $DST
+
+while [[ $# -ge 1 ]]; do
+    echo "Put layer '$1' onto '$DST'..." >&2
+#   if cp -r $1/* $DST/; then
+    if rsync -a --ignore-times --chmod=u=rwX,go=rX --exclude .empty $1/ $DST/; then
+        echo "DONE" >&2
+    else
+        echo "FAILED" >&2
+        exit -1
+    fi
+    shift
+done
+
+
diff --git a/scripts/create_toolchain_binding.sh b/scripts/create_toolchain_binding.sh
new file mode 100755
index 00000000..336d34ac
--- /dev/null
+++ b/scripts/create_toolchain_binding.sh
@@ -0,0 +1,28 @@
+#!/bin/bash
+
+TOOLCHAIN_DIR=$1
+TOOLCHAIN_PREFIX=$2
+
+cat - << EOF
+# THIS FILE IS GENERATED BY $(readlink -f $0)
+
+TOOLCHAIN_DIR     := $TOOLCHAIN_DIR
+TOOLCHAIN_PREFIX  := $TOOLCHAIN_PREFIX
+
+TOOLCHAIN := \$(TOOLCHAIN_DIR)/\$(TOOLCHAIN_PREFIX)
+
+CC := \$(TOOLCHAIN)-gcc
+AR := \$(TOOLCHAIN)-ar
+LD := \$(TOOLCHAIN)-ld
+RANLIB := \$(TOOLCHAIN)-ranlib
+NM := \$(TOOLCHAIN)-nm
+STRIP := \$(TOOLCHAIN)-strip
+EOF
+
+EXTRA_BINS=(go gofmt m4 swig)
+
+for I in ${EXTRA_BINS[*]}; do
+    if [ -e $TOOLCHAIN_DIR/$I ]; then
+        echo "${I^^} := \$(TOOLCHAIN_DIR)/$I"
+    fi
+done