Triangular dependencies in libraries.

[markfoodyburton]

I have library A which is "well behaved" and uses export to make a library.
Library B likewise, and uses a find_package(A) to find A.
Then I have a project C, which uses CPMFindPackage to include A and likewise B.

I then get:

CMake Error at ..../_deps/A/AConfig.cmake: (include):
The file
.../ATargets.cmake

was generated by the export() command. It may not be used as the argument
to the include() command. Use ALIAS targets instead to refer to targets by
alternative names.

Call Stack (most recent call first):
.../B/CMakeLists.txt (find_package)

Building B on it's own works... so I assume It's an issue somehow with CPM, but I dont understand how !

Any help appreciated !

[TheLartians]

Hm my personal projects have a lot of triangular dependencies, however they all use CPMAddPackage for managing dependencies. Perhaps the issue arises from inside the the AConfig.cmake or a conflict with the generated findA.cmake modules. It's hard to say without a reproducible example.

[markfoodyburton]

Looks like you were right.... thanks for the pointer