Comments (1)
I think the core issue is that CPM doesn't recognize the external CMake project as a valid CPM module. As in CPM_InitModule("yaml-cpp")
was never issued from the project at https://github.com/jbeder/yaml-cpp
. If memory serves, externals were created in order to wrap non-CMake projects. The expectation being that CMake projects themselves could just add the CPM machinery. However, I don't believe that external CMake projects should add the CPM machinery, they should be wrapped at a higher level in CPM.
I agree that this behavior should be modified so that one could specify a true 'external-to-CPM' in addition to a 'CPM-External' that simply knows how to build the project. Unfortunately my head has been out of CMake script for over 2 years now and don't have the context to drive these changes forward. What may suit your use case is a CMake ExternalProject but those aren't supported on the website (not without a CPM_AddModuleExternal
or some other modification to the CPM source).
I'll leave the issue open and post a maintenance warning on the github page.
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Related Issues (19)
- Add source local builds HOT 1
- Generated global variables are not ISO C99 Conformant HOT 1
- Add the possiblity to search for packages registered in cpm.rocks HOT 6
- Building CPM modules independently from parent HOT 1
- Location of children's artifacts, copying artifacts, etc
- A module (opencv2) failed to define its name!
- Failed to checkout tag: 'origin/master'
- provide a simple example how to add an external HOT 5
- caching does not seem to work HOT 1
- how to use pre-built libraries in own modules
- Add tests for modules
- Mainitaing the project
- Add tests for externals
- Provided sample from README fails to build HOT 7
- Hope to add a SYSTEM Variable that searches for predownloaded cpm_modules HOT 4
- How much effort would support for Mercurial be? HOT 3
- Combine forces HOT 2
- Can't use SSH-style on GIT_REPOSITORY HOT 3
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