Installing 2 SDKs of the same version but different arch results in broken compilation

Installing 2 SDKs let's say from 5.99.2:

• armv7thf
• aarch64

Results in broken compilation options. Likely the SDK installed last overwrites a common file.

This operation mode is actually supported in yocto as each ARCH has a separate env script.

In this case we seem to overwrite a setting that is sourced by both env scripts.

Examples an log output follow.