Re: gettext and C usage

[Bruno Haible]

Karl Berry writes:
> I wonder if the gettext manual could include the recommended constructs
> to declare gettext from a .h file.  (At least I couldn't find such.)

It does so at several places.

> For Texinfo, I'm currently using:
> 
> #ifdef HAVE_LOCALE_H
> #include <locale.h>
> #endif

Plain "#include <locale.h>" is sufficient. Systems without <locale.h>
file are not in use anymore.

> #ifndef HAVE_SETLOCALE
> #define setlocale(category,locale) /* empty */
> #endif

Likewise, not needed. All systems have this function.

> /* For gettext (NLS).  */
> #include "gettext.h"

OK.

> #if !HAVE_LC_MESSAGES
> # define LC_MESSAGES (-1)
> #endif

Not needed. If <locale.h> doesn't define LC_MESSAGES, <libintl.h> will
do so. <libintl.h> is included by "gettext.h".

> #define _(String) gettext (String)
> #define N_(String) (String)

Right. If you are building a library, not a program, then

  #define _(String) dgettext ("my-library-name", String)

is to be preferred.

Bruno