[llvm-dev] LLVMBuild is gone (which is a good thing)

[Michael Kruse via llvm-dev]

Am Do., 3. Dez. 2020 um 11:45 Uhr schrieb Chris Sears via llvm-dev
<llvm-dev at lists.llvm.org>:
> I just did a pull of the tagged 11.0.1 and the build system had changed. LLVMBuild is gone and now everything is done with CMake now. This is great, really.

Thank Serge (added to CC)  who did all the work: https://reviews.llvm.org/D90848


> However, the error messages I got from the new build were confusing to say the least. Would it be possible for CMake to check for the mere existence of an LLVMBuild.txt in the backend directories and fail with an error to upgrade to the new build system?

To clarify: You have a downstream backend that does not work anymore
because the dependencies now have to be encoded in the
add_llvm_component_library call the LLVMBuild.txt is ignored?

You could upload a patch to Phabricator. However, since your backend
has now updated, this doesn't seem useful to you anymore (, but maybe
for others)

Michael