Hi all, am I getting mad or % libtbx.configure —only cctbx % libtbx.scons will result in a linking error because of the line marked with <<<<< in cctbx/maptbx/SConscript ? if (not env_etc.no_boost_python): Import("env_cctbx_boost_python_ext") env_bpl = env_cctbx_boost_python_ext.Clone() env_etc.include_registry.append( env=env_bpl, paths=env_etc.cctbx_common_includes) env_bpl.Prepend(LIBS=["asymmetric_map", "iotbx_xplor", "cctbx_sgtbx_asu”, <<<<<<<<<<<<<<<<<<<<<<<<<<<<< "cctbx", "omptbx"]) env_bpl.SharedLibrary( target="#lib/cctbx_asymmetric_map_ext", source=["asymmetric_map_ext.cpp"]) This code was introduced in Dec 2013!!! The only workaround % libtbx.configure cctbx iotbx So much for the modularisation with the libtbx_config’s… Best wishes, Luc