cxx.std = experimental

cxx.features.symexport = true

# Indicate that our sources do not use #include and module imports do not
# depend on the preprocessor.
#
if ($cxx.id.type != 'msvc') # Temporary for 'export module M;' fixup.
  cxx.preprocessed = modules

using cxx

assert $cxx.features.modules 'c++ compiler does not support modules'

mxx{*}: extension = mxx
cxx{*}: extension = cxx