Version check does not work properly on FreeBSD

[darcagn]

When running a version check like so from bash shell:
$ $KOS_MAKE -C ../micropython version-check

The version check will report back:

gmake: Entering directory '/opt/toolchains/dc/kos-ports/micropython'
/bin/sh: /opt/toolchains/dc/kos/../kos-ports/scripts/vercmp.sh: not found
micropython 1.21.0 installed. Update to 1.21.0.
gmake: Leaving directory '/opt/toolchains/dc/kos-ports/micropython'

But vercmp.sh is where it says it should be.

Installing a package works fine, but as a consequence running build-all.sh script will re-compile and re-install everything every time regardless if it's installed already.

[ljsebald]

Corrected in d906eee.