Hi,

I am trying to import a software package into pkgsrc and I have a
problem regarding 'alternate' dependencies: by this I mean the package
requires either one OR another package to build but not both (and these
two packages conflict). If either one is present, then the package I am
working on can be built.

I have specified the dependency for one of these by doing something
like this in the Makefile:
.include        "../../devel/standalone-libs/buildlink3.mk"

but if ../../sysutils/progwithlibs (which has standalone-libs as part
of its distribution) has already been installed, then I would want to
use the libraries bundled with it already.

Is this possible to do?


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