Re: unique identifiers for guard macros

[Angel Tsankov]

> > Can someone recommend a way to create "unique" identifiers for use in 
> > guard macros:
> >
> > #if !defined (UNIQUE_GUARD)
> > #define UNIQUE_GUARD
> > ...
> > #endif //!defined UNIQUE_GUARD
>
> In VC6 MS tacked a GUID onto the end of the include guard e.g.
>
> #if !defined(FILE_H_INSERT_128_BIT_GUID_HERE)
>
> but in VC7 and later they came up with #pragma once.
>
> If you do any MS/COM programming, or (I think) CORBA programming, you 
> should have a GUID generator.

Using GUIDs is a good suggestion, but does one exist for Linux?