module two { header "two.h" }
module oneA { header "oneA.h" }
module oneB { header "oneB.h" export oneA }
module oneC { header "oneC.h" }
module two { header "two.h" }
module oneA { header "oneA.h" }
module oneB { header "oneB.h" export oneA }
module oneC { header "oneC.h" }