WIP: cmRulePlaceholderExpander: Add access to targets properties
Using <TARGET_PROPERTY:<prop>>
expressions, it is now possible to
access a target's property (or the corresponding CMAKE_<prop>
global
variable fallback) in CMAKE_<lang>_LINK_EXECUTABLE
and similar
commands.
The value of the target properties is itself expanded again, so a bit of recursion is possible.
This allows to pass additional parameters for custom toolchains that use post-processing steps with additional files per target when creating applications.
--
I don't really know what is the state of "complex" expressions
in the CMAKE_<lang>_LINK_EXECUTABLE
(and SHARED
/MODULE
variants), or how it conflicts with generator expressions.
My knowledge of CMake's internals is very limited and this is the simplest way I could solve my problem. Let me know if I'm misleading.
Also, I have no idea where to add unit tests for this kind of feature, or how to integrate them in the project. Is there any information about it somewhere?