Pass additional libraries to google benchmark

Author: ldionne

libcxx/test/benchmarks/CMakeLists.txt

@@ -20,10 +20,13 @@ if (DEFINED LIBCXX_CXX_ABI_LIBRARY_PATH)
           -L${LIBCXX_CXX_ABI_LIBRARY_PATH}
           -Wl,-rpath,${LIBCXX_CXX_ABI_LIBRARY_PATH})
 endif()
+split_list(BENCHMARK_COMPILE_FLAGS)
+
+set(BENCHMARK_CXX_LIBRARIES)
+list(APPEND BENCHMARK_CXX_LIBRARIES c++)
 if (NOT LIBCXX_ENABLE_SHARED)
-  list(APPEND BENCHMARK_COMPILE_FLAGS -lc++abi)
+  list(APPEND BENCHMARK_CXX_LIBRARIES c++abi)
 endif()
-split_list(BENCHMARK_COMPILE_FLAGS)
 
 ExternalProject_Add(google-benchmark
         EXCLUDE_FROM_ALL ON
@@ -38,6 +41,7 @@ ExternalProject_Add(google-benchmark
           -DCMAKE_INSTALL_PREFIX:PATH=<INSTALL_DIR>
           -DCMAKE_CXX_FLAGS:STRING=${BENCHMARK_COMPILE_FLAGS}
           -DBENCHMARK_USE_LIBCXX:BOOL=ON
-          -DBENCHMARK_ENABLE_TESTING:BOOL=OFF)
+          -DBENCHMARK_ENABLE_TESTING:BOOL=OFF
+          -DBENCHMARK_CXX_LIBRARIES:STRING="${BENCHMARK_CXX_LIBRARIES}")
 
 add_dependencies(cxx-test-depends google-benchmark)