Specifies options affecting the preprocessed output.
-ppopt keyword [,...]
The arguments for keyword are:
[no]break
Emits file and line breaks. This is the default.
[no]line
Controls whether #line directives are emitted or just comments. The default is line.
[no]full[path]
Controls whether full paths are emitted or just the base filename. The default is fullpath.
[no]pragma
Controls whether #pragma directives are kept or stripped. The default is pragma.
[no]comment
Controls whether comments are kept or stripped.
[no]space
Controls whether whitespace is kept or stripped. The default is space.
The default settings is break.