message: Fix FreeBSD build with -DUSE_SHARED_LLVM=off
diff: @@ -114,6 +114,8 @@ find_package(Threads REQUIRED)
  target_link_libraries(ccls PRIVATE Threads::Threads)
  if(${CMAKE_SYSTEM_NAME} STREQUAL FreeBSD)
  + find_package(Backtrace REQUIRED)
  + target_link_libraries(ccls PRIVATE ${Backtrace_LIBRARIES})
  # src/platform_posix.cc uses libthr
  target_link_libraries(ccls PRIVATE thr)
  endif()
  