@node setenv
@section @code{setenv}
@findex setenv

POSIX specification: @url{http://www.opengroup.org/susv3xsh/setenv.html}

Gnulib module: setenv

Portability problems fixed by Gnulib:
@itemize
@item
This function is missing on some platforms:
AIX 4.3.2, HP-UX 11, IRIX 6.5, Solaris 9, mingw, BeOS.
@end itemize

Portability problems not fixed by Gnulib:
@itemize
@item
In some versions of glibc (e.g.@: 2.3.3), @code{setenv} doesn't fail if the
first argument contains a @samp{=} character.
@end itemize