由于缺少变量，LLVM无法编译

Question

当我尝试使用here中的以下命令编译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

为什么？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。

查看here：

  

将libcxx和libcxxabi签出到llvm / projects

中

确保在llvm / projects中查看两者 libcxx和libcxxabi。