[NTG-context] Building luametatex with Lua symbols exposed

Hi, beloved list. Since sources are in the distribution, I've tried compiling luametatex by setting LMT_STRIP in CMakeLists.txt to 0, yet the resulting binary still warns about undefined symbols, such as lua_gettop, when an external library is loaded in Lua. Any ideas on how to solve it? Thank you in advance. Best regards, Jairo