Sync from Piper @327110949
PROTOBUF_SYNC_PIPER
diff --git a/cmake/libprotobuf-lite.cmake b/cmake/libprotobuf-lite.cmake
index 6bf86a2..bbba607 100644
--- a/cmake/libprotobuf-lite.cmake
+++ b/cmake/libprotobuf-lite.cmake
@@ -12,6 +12,7 @@
${protobuf_source_dir}/src/google/protobuf/io/zero_copy_stream.cc
${protobuf_source_dir}/src/google/protobuf/io/zero_copy_stream_impl.cc
${protobuf_source_dir}/src/google/protobuf/io/zero_copy_stream_impl_lite.cc
+ ${protobuf_source_dir}/src/google/protobuf/map.cc
${protobuf_source_dir}/src/google/protobuf/message_lite.cc
${protobuf_source_dir}/src/google/protobuf/parse_context.cc
${protobuf_source_dir}/src/google/protobuf/repeated_field.cc
