If condition in Makefile not evaluating
Solution 1:
You have:
ifeq ($(OS_ARCH),"arm64")
If OS_ARCH is set to arm64 this evaluates to:
ifeq (arm64,"arm64")
and the string arm64 is not the same as the string "arm64" because the latter has quotes and the former doesn't.
Use:
ifeq ($(OS_ARCH),arm64)