clang - LLVM 由于缺少变量而无法编译

Question

当我尝试使用来自 here 的以下命令编译 llvm 时, cmake "Unix Make Files"-DCMAKE_BUILD_TYPE=Debug ~/llvm/1/llvm/

我收到以下错误:

CMake Error: The following variables are used in this project, but they are set to NOTFOUND.
Please set them or make sure they are set and tested correctly in the CMake files:
LIBCXXABI_LIBCXX_INCLUDES
   used as include directory in directory /home/salman/llvm/1/llvm/projects/libcxxabi/src
   used as include directory in directory /home/salman/llvm/1/llvm/projects/libcxxabi/src
   used as include directory in directory /home/salman/llvm/1/llvm/projects/libcxxabi/src
   used as include directory in directory /home/salman/llvm/1/llvm/projects/libcxxabi/src

这是为什么呢？我用谷歌搜索但找不到可能的解决方案。

Answer 1

我刚刚解决了这个问题。

看here :

Check out libcxx and libcxxabi into llvm/projects

确保在 llvm/projects 中检查 libcxx 和 libcxxabi。