From 3dc5722d5c7673a879f2b4680369d3ac8b6b64b6 Mon Sep 17 00:00:00 2001 From: Tom Stellard Date: Wed, 4 Aug 2021 14:05:38 -0700 Subject: [PATCH] cmake: Allow shared libraries to customize the soname using LLVM_ABI_REVISION The LLVM_ABI_REVISION variable is intended to be used for release candidates which introduce an ABI change to a shared library. This variable can be specified per library, so there is not one global value for all of LLVM. For example, if we LLVM X.0.0-rc2 introduces an ABI change for a library compared with LLVM X.0.0-rc1, then the LLVM_ABI_REVISION number for library will be incremented by 1. In the main branch, LLVM_ABI_REVISION should always be 0, it is only meant to be used in the release branch. Differential Revision: https://reviews.llvm.org/D105594 --- clang/tools/clang-shlib/CMakeLists.txt | 5 +++++ 3 files changed, 19 insertions(+), 2 deletions(-) diff --git a/clang/tools/clang-shlib/CMakeLists.txt b/clang/tools/clang-shlib/CMakeLists.txt index 9c1f8ea452b3..4d785924e4bb 100644 --- a/clang/tools/clang-shlib/CMakeLists.txt +++ b/clang/tools/clang-shlib/CMakeLists.txt @@ -1,3 +1,8 @@ +# In the main branch, LLVM_ABI_REVISION should always be 0. In the release +# branches, this should be incremented before each release candidate every +# time the ABI of libclang-cpp.so changes. +set(LLVM_ABI_REVISION 0) + # Building libclang-cpp.so fails if LLVM_ENABLE_PIC=Off if (NOT LLVM_ENABLE_PIC) return() -- 2.27.0