2 @section @code{unsetenv}
5 POSIX specification: @url{http://www.opengroup.org/onlinepubs/9699919799/functions/unsetenv.html}
9 Portability problems fixed by Gnulib:
12 This function is missing on some platforms:
13 AIX 5.1, HP-UX 11, IRIX 6.5, Solaris 9, mingw, BeOS.
15 This function has the return type @samp{void} instead of @samp{int} on some
17 MacOS X 10.3, FreeBSD 6.0, NetBSD 1.6, OpenBSD 3.8, OSF/1 5.1.
20 Portability problems not fixed by Gnulib: