[llvm-dev] llvm-config deprecation (original) (raw)

Andrew Kelley via llvm-dev llvm-dev at lists.llvm.org
Tue Jan 1 20:22:50 PST 2019

On 1/1/19 10:00 PM, Chandler Carruth wrote:

Not sure why you're getting the CMake error, but we aren't deprecating llvm-config that I know of.

The message you're seeing is about deprecating the use of llvm-config from CMake. There, we are providing installed CMake fragments that we want people to use instead of relying on the generic foo-config support in CMake combined with llvm-config. Much as your email explain, there are many (non-CMake) users of llvm-config and it would be strange for it to go away.

Thanks for the clarification. In this case, all is well. I believe that what I am observing is the "out-of-tree" build process, where LLVM and Clang are installed via separate source tarballs, which produces this warning. I do think that it would be beneficial to improve the wording of the warning to clarify that llvm-config is not deprecated, as well as to fix "out of tree" build to not produce the warning - since this message would be displayed for package managers such as Debian when building Clang for the system, and this is likely to cause confusion.

Regards, Andrew

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