NAME

       mtext_putenv - Change or add an environment variable.

SYNOPSIS

       int mtext_putenv (MText * mt)

DESCRIPTION

       Change or add an environment variable. The mtext_putenv() function changes or adds the
       value of environment variables according to M-text mt.  It calls the function putenv with
       an argument generated by encoding mt according to the current locale (LC_CTYPE).

RETURN VALUE

           This function returns zero on success, or -1 if an error occurs.

COPYRIGHT

       Copyright (C) 2001 Information-technology Promotion Agency (IPA)
       Copyright (C) 2001-2011 National Institute of Advanced Industrial Science and Technology
       (AIST)
       Permission is granted to copy, distribute and/or modify this document under the terms of
       the GNU Free Documentation License <http://www.gnu.org/licenses/fdl.html>.