Re-introduces functionality that was present in B2, but removed when the "" feature was introduced
Previously, generators could return a property-set as the first item in the result list, this feature removed that. It doesn't seem clear to me that removing this functionality was intentional or necessary to make the feature work. I suspect it was overlooked because the built-in generators did not utilize this functionality that the system supported
Adding the variant information to the configure messages caused a lot of
long output. Avoid most of the long output by removing the data output
duplication and summarizing the variants as notes below the configure
items.
Before this indirect rule references in features like
"-<conditional>@global.my-rule" had no effect. This was due to such
references being contextually encoded and evaluated. Hence every
reference was different and nothing could be removed. This change
makes it such that those indirect references do not use the invocation
context to compare for the removal of the inherited features. And hence,
allowing them to work.
Fixes#709
This change removes the "hard wired" set of features that are relevant
for a configure check. And instead uses the dynamic base properties
of the target property set. Hence always giving the minimal set of
unique properties for the configure check. This also adds output to
the configure items showing what that feature set is.
fixes#582
There was a systemic error of using ":=" instead of ":-" var expansion
that caused all kinds of problems. Replacing all the instances to be
correct fixed them. But also brought to light other problems. The
changes include fixing the intel detection to no leak and persist it's
setup. And to also support setup script generally if required.
Fixes#705
