Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: not %clang_cc1 -fsyntax-only %s // PR1900 // This test should get a redefinition error from m_iopt.h: the MI opt // shouldn't apply. #define MACRO #include "mi_opt.h" #undef MACRO #define MACRO || 1 #include "mi_opt.h"