.\" Copyright (C) 2001 Information-technology Promotion Agency (IPA)
.\" Copyright (C) 2001-2009
.\"   National Institute of Advanced Industrial Science and Technology (AIST)
.\" This file is part of the m17n library documentation.
.\" Permission is granted to copy, distribute and/or modify this document
.\" under the terms of the GNU Free Documentation License, Version 1.2 or
.\" any later version published by the Free Software Foundation; with no
.\" Invariant Section, no Front-Cover Texts,
.\" and no Back-Cover Texts.  A copy of the license is included in the
.\" appendix entitled "GNU Free Documentation License".
.TH "mtext_putenv" 3m17n "15 Oct 2009" "" "Version 1.5.5" "" "The m17n Library" \" -*- nroff -*-
.ad l
.nh
.SH NAME
mtext_putenv \- Change or add an environment variable. 


.SH SYNOPSIS
int
\fBmtext_putenv\fP (\fBMText\fP *
\fImt\fP)


.SH DESCRIPTION
Change or add an environment variable. 
.PP
The
.ft B
mtext_putenv()
.ft R
function changes or adds the value of environment variables according to M\-text
.ft B
mt\fP.
.ft R
It calls the function
.ft C
putenv
.ft R
with an argument generated by encoding
.ft B
mt
.ft R
according to the current locale (LC_CTYPE).
.PP
.SH RETURN VALUE
.PP
.RS 4
This function returns zero on success, or \-1 if an error occurs. 
.RE
.PP

.SH COPYRIGHT
Copyright (C) 2001 Information\-technology Promotion Agency (IPA)
.br
Copyright (C) 2001\-2009 National Institute of Advanced Industrial Science and Technology (AIST)
.br
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>.
