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Summary: For Incremental LTO, we need to make sure that an old cache entry is not used when incrementally re-linking with a new libLTO. Adding a global LLVM_REVISION in llvm-config.h would for to rebuild/relink the world for every "git pull"/"svn update". So instead only libLTO is made dependent on the VCS and will be rebuilt (and the dependent binaries relinked, i.e. as of today: libLTO.dylib and llvm-lto). Reviewers: beanz Subscribers: llvm-commits Differential Revision: http://reviews.llvm.org/D18987 From: Mehdi Amini <mehdi.amini@apple.com> git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@266523 91177308-0d34-0410-b5e6-96231b3b80d8
See docs/CMake.html for instructions on how to build LLVM with CMake.