[libcxx][CMake] Support in-tree libunwind when building as part of runtimes When building as part of runtimes, there is no predefined order in which the runtimes are loaded, so the targets from other projects might not be available. We need to rely on HAVE_<name> variables instead in that case. Differential Revision: https://reviews.llvm.org/D29575 git-svn-id: https://llvm.org/svn/llvm-project/libcxx/trunk@294553 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/CMakeLists.txt b/CMakeLists.txt index 0b73052..0ac7c8c 100644 --- a/CMakeLists.txt +++ b/CMakeLists.txt
@@ -158,6 +158,7 @@ # Build libc++abi with libunwind. We need this option to determine whether to # link with libunwind or libgcc_s while running the test cases. option(LIBCXXABI_USE_LLVM_UNWINDER "Build and use the LLVM unwinder." OFF) +option(LIBCXXABI_ENABLE_STATIC_UNWINDER "Statically link the LLVM unwinder." OFF) # Target options -------------------------------------------------------------- option(LIBCXX_BUILD_32_BITS "Build 32 bit libc++." ${LLVM_BUILD_32_BITS}) 