Bug: unix environment init
The script "sdk/scripts/unix-init-env.sh" is called from "sdk/scripts/unix-build", which is used for both sdk and designer. However, extras is built using /extras/scripts/linux-build, which doesn't call "unix-init-env.sh", and may therefore not use the exact same build tools.
The unix-init-env.sh script could be called in meta/build.sh only once. Note it needs to be source'd and on just ran.