[PATCH] D37637: [CMake] Determine early on which projects are enabled

[Zachary Turner via Phabricator via llvm-commits]

zturner updated this revision to Diff 114436.
zturner added a comment.

Updated to look for all projects in the `runtimes` and `projects` folder.

Also worth mentioning is that `projects/CMakeLists.txt` seems to have some hackish code that appears to be a workaround for the fact the feature I'm adding in this patch doesn't exist.  Specifically, it first adds a bunch of known projects that don't depend on each other in a random order.  Then it adds a couple of specific projects that do depend on each other in the right order so that they can use `if (TARGET foo)` to check for existence.

After this patch, the entire set of valid projects that are present in the tree can probably be added in any order, as long as each `CMakeLists.txt` is updated to use the proper `LLVM_PROJECT_foo_ENABLED` variable, rather than an `if (TARGET foo)` check.


https://reviews.llvm.org/D37637

Files:
  compiler-rt/CMakeLists.txt
  llvm/CMakeLists.txt
  llvm/cmake/modules/AddLLVM.cmake

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