[cmake] Append LLVM_VERSION_SUFFIX to SOVERSION
Append LLVM_VERSION_SUFFIX to SOVERSION. This makes it possible
to use the suffix to differentiate binary-incompatible versions
of LLVM built via BUILD_SHARED_LIBS.
We are planning to use this to temporarily preserve ABI-incompatible
variants of LLVM while switching the system between them, e.g. when
rebuilding the system to use libc++. Normally this would mean that once
LLVM is rebuilt using libc++ all the reverse dependencies become
immediately broken. Using a distinct SOVERSION allows us to preserve
the ABI compatibility before all the packages are rebuilt.
Differential Revision: https://reviews.llvm.org/D39939
git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@339286 91177308-0d34-0410-b5e6-96231b3b80d8
1 file changed