tree e72fb32152d5e30701a94d597cb9c089f0ed57f8
parent 1d0426f6426ef88342f3a57fb555a2b2d8891712
author Ben Boeckel <ben.boeckel@kitware.com> 1675093004 -0500
committer Ben Boeckel <ben.boeckel@kitware.com> 1676396038 -0500

cmMakefile: add support for a "synthesized" target

It is a normal target, but will end up copying its internals from
another target. Keep track of this state so that such copying can only
occur when intended.