set(LLVM_TOOL_LLVM_LTO_BUILD Off)
endif()
+# Projects supported via LLVM_EXTERNAL_*_SOURCE_DIR need to be explicitly
+# specified.
+add_llvm_external_project(clang)
+add_llvm_external_project(llgo)
+add_llvm_external_project(lld)
+add_llvm_external_project(lldb)
+
# Automatically add remaining sub-directories containing a 'CMakeLists.txt'
# file as external projects.
add_llvm_implicit_projects()