我在我的项目中使用 llvm 并使用 cmake 找到它find_package(LLVM REQUIRED CONFIG).
配置失败并显示消息：
[cmake] CMake Error at /Applications/CMake.app/Contents/share/cmake-3.23/Modules/Internal/CheckSourceCompiles.cmake:44 (message):
[cmake] check_source_compiles: C: needs to be enabled before use.
[cmake] Call Stack (most recent call first):
[cmake] /Applications/CMake.app/Contents/share/cmake-3.23/Modules/CheckCSourceCompiles.cmake:76 (cmake_check_source_compiles)
[cmake] /usr/local/lib/cmake/llvm/FindTerminfo.cmake:21 (check_c_source_compiles)
[cmake] /usr/local/lib/cmake/llvm/LLVMConfig.cmake:242 (find_package)
[cmake] tools/driver/CMakeLists.txt:6 (find_package)
[cmake]
[cmake]
[cmake] -- Could NOT find Terminfo (missing: Terminfo_LINKABLE)
[cmake] -- Configuring incomplete, errors occurred!
如何修复它？
这实际上是一个众所周知的issue https://github.com/llvm/llvm-project/issues/53950在 clang-14 及更高版本中。
临时解决方案是在项目中使用C语言。
project(test LANGUAGES C CXX) # instead of project(test LANGUAGES CXX)
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