Link against TBB if available (#242)

Author: Earthwings

CMakeLists.txt

@@ -215,6 +215,10 @@ if (PHMAP_BUILD_EXAMPLES)
        add_executable(ex_llil4map examples/llil4map.cc phmap.natvis)
        target_include_directories(ex_llil4map PRIVATE ${Boost_INCLUDE_DIRS})
        target_compile_features(ex_llil4map PUBLIC cxx_std_20)
+       find_package(TBB COMPONENTS tbb)
+       if (TBB_FOUND)
+           target_link_libraries(ex_llil4map PRIVATE TBB::tbb)
+       endif()
        target_link_libraries(ex_llil4map PRIVATE OpenMP::OpenMP_CXX)
        target_compile_options(ex_llil4map PRIVATE "${OpenMP_CXX_FLAGS}")
        file(COPY examples/llil_utils DESTINATION "${CMAKE_CURRENT_BINARY_DIR}")