Re: Handling of #undef FOO

[Paul Eggert]

Ismail Dönmez <address@hidden> writes:

> but it should be defined like this,
>
> #ifndef FOO
> #define FOO
> #endif

Why should it be defined like that?  Typically, config.h is supposed
to define FOO; if something else is defining FOO first, that's a
problem with the "something else", not with config.h.