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Declare the LLVM_CMAKE_PATH to the source directory location of CMake files, in order to make it possible to easily use them in subprojects. Such a variable is already declared in most of LLVM projects (and inconsistently mixed with direct source tree references), including Clang, LLDB, compiler-rt, libcxx... Declaring it inside main LLVM tree makes it possible to avoid having to declare fallback values or use conditionals in those projects. It should be noted that in some of the subprojects LLVM_CMAKE_PATH is used to reference generated LLVMConfig.cmake file. However, these references are conditional to stand-alone builds and explicitly including this file is unnecessary in combined builds. Differential Revision: https://reviews.llvm.org/D25724 git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@284581 91177308-0d34-0410-b5e6-96231b3b80d8
Low Level Virtual Machine (LLVM) ================================ This directory and its subdirectories contain source code for LLVM, a toolkit for the construction of highly optimized compilers, optimizers, and runtime environments. LLVM is open source software. You may freely distribute it under the terms of the license agreement found in LICENSE.txt. Please see the documentation provided in docs/ for further assistance with LLVM, and in particular docs/GettingStarted.rst for getting started with LLVM and docs/README.txt for an overview of LLVM's documentation setup. If you are writing a package for LLVM, see docs/Packaging.rst for our suggestions.