Edit docker/env_make to specify the location of the redis data directory

Full_PATH_TO_REDIS= \
<fullpath>/openwrt-ipkg-redis/data/`

Build the docker container

cd docker && make build 

Uses a buildroot docker container and compiles the redis ipk manually

cd docker && make shell`
cd openwrt && make package/redis/compile V=s

Change into the container environment

cd docker && make shell

Change menuconfig settings suitable for your needs

cd openwrt && make menuconfig

Recompile for openwrt

make -j4

Select the container id e.g b4c2ad31325c

docker ps

Copy openwrt binaries form the container to the host

docker cp b4c2ad31325c:/home/openwrt/openwrt/bin/x86/packages/base/redis_3.2.8-1_x86.ipk /tmp

docker cp b4c2ad31325c:/home/openwrt/openwrt/.config <Fullpath to git repo>openwrt-ipkg-redis/docker/

MUSL does not define a MUSL macro for musl add: ``