[CMake] exclude a dependency from export

[Nicholas Braden]

Have you tried using the PRIVATE keyword when linking to A?
https://cmake.org/cmake/help/latest/command/target_link_libraries.html#libraries-for-a-target-and-or-its-dependents

On Fri, Jan 22, 2016 at 9:14 AM, Jack Stalnaker <omnijack at gmail.com> wrote:
> Is there any way to exclude a dependency from an export? If I build a static
> library target "A" but do not wish to install it, and then link that target
> to another target "B" using target_link_libraries(B A), and then attempt to
> export B, I get the error message:
>
> install (EXPORT "B" ...) includes target "B" which requires target "A" that
> is not in the export set.
>
> I can solve the problem by installing A, but there is no need to. It is a
> temporary target that is statically linked. I just need to export for
> creating a package config file, so there's no need for the package config to
> ever need to worry about statically linked libraries.
>
> Is there a workaround for this?
>
> Long story short, I am trying to replicate convenience libraries from
> autotools. I'm having a hell of time doing it. I can use lists of sources,
> but that requires passing around global variables that include the sources
> and others that include the required libraries. This is far messier and far
> less convenient. I've tried object libraries, and while they eliminate the
> global source variables and prevent rebuilding things, they fail when the
> source is nested, and you want to build a "super library" from smaller
> object libraries, which I believe is a fairly common working pattern.
> Building a static library that is never installed works really well ...
> until I go to create a package config file. Then this export fails.
>
> Thanks,
> --Jack
>
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