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       bindtextdomain - set directory containing message catalogs


       #include <libintl.h>

       char * bindtextdomain (const char * domainname, const char * dirname);


       The  bindtextdomain  function  sets the base directory of the hierarchy
       containing message catalogs for a given message domain.

       A message domain is a set  of  translatable  msgid  messages.  Usually,
       every software package has its own message domain. The need for calling
       bindtextdomain arises because packages are not  always  installed  with
       the  same  prefix  as  the  <libintl.h>  header  and  the  libc/libintl

       Message    catalogs    will    be    expected    at    the    pathnames
       dirname/locale/category/,  where  locale  is a locale name
       and category is a locale facet such as LC_MESSAGES.

       domainname must be a non-empty string.

       If dirname is  not  NULL,  the  base  directory  for  message  catalogs
       belonging  to  domain  domainname is set to dirname. The function makes
       copies of the argument strings as needed. If the program wishes to call
       the  chdir  function,  it  is  important  that  dirname  be an absolute
       pathname; otherwise it cannot be guaranteed that the  message  catalogs
       will be found.

       If  dirname  is  NULL,  the  function  returns  the previously set base
       directory for domain domainname.


       If successful, the bindtextdomain function  returns  the  current  base
       directory  for  domain  domainname,  after  possibly  changing  it. The
       resulting string is valid until the next bindtextdomain  call  for  the
       same  domainname  and  must  not  be  modified  or  freed.  If a memory
       allocation failure occurs, it sets errno to ENOMEM and returns NULL.


       The following error can occur, among others:

       ENOMEM Not enough memory available.


       The return type ought to be const char  *,  but  is  char  *  to  avoid
       warnings in C code predating ANSI C.


       gettext(3),   dgettext(3),   dcgettext(3),  ngettext(3),  dngettext(3),
       dcngettext(3), textdomain(3), realpath(3)