Create a new channel as a copy of main.
Rename main to:
Delete main? This cannot be undone.
[ { "directory": "DIR", "command": "clang -x c-header DIR/pch.h -fmodules -gmodules -fimplicit-module-maps -fmodules-cache-path=DIR/cache -o DIR/pch.h.gch", "file": "DIR/pch.h" } ]