[CMake] Remove variable reference that isn't used.
Summary:
This variable is never defined, so its value is always empty. Since
`libunwind` is needed to build the C++ ABI library in the first place,
it should never be linked to the C++ ABI library anyway.
Reviewers: mstorsjo, rnk
Subscribers: mgorny, christof, cfe-commits
Differential Revision: https://reviews.llvm.org/D51644
git-svn-id: https://llvm.org/svn/llvm-project/libunwind/trunk@341388 91177308-0d34-0410-b5e6-96231b3b80d8
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 8731ed7..a5e6084 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -51,7 +51,7 @@
${LIBUNWIND_ASM_SOURCES})
# Generate library list.
-set(libraries ${LIBUNWINDCXX_ABI_LIBRARIES})
+set(libraries)
append_if(libraries LIBUNWIND_HAS_C_LIB c)
append_if(libraries LIBUNWIND_HAS_GCC_S_LIB gcc_s)
append_if(libraries LIBUNWIND_HAS_DL_LIB dl)
