Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
// RUN: %clang_cc1 -triple x86_64-windows-msvc -fms-extensions -emit-llvm -o - %s | FileCheck %s __declspec(dllimport) void f(void); void g(void) { f(); } // use it // CHECK: define dso_local dllexport void @f void f(void) { }