[yocto] Writing a recipe that allows for extra depends, depending on the extra_oemake configurations

[Burton, Ross]

> I'm wondering how I can make it so that I can have a user allow for
> additional configuration to enable crypto/krb5 which requires extra depends
> and changing the oemake flags. Is this something Yocto can do, or is it
> better to have users provide a bbappend file to update this recipe?

Yes, PACKAGECONFIG is exactly what you want.

https://www.yoctoproject.org/docs/2.4.2/ref-manual/ref-manual.html#var-PACKAGECONFIG

Ross