5 POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/trunc.html}
9 Portability problems fixed by Gnulib:
12 This function is missing on some platforms:
13 FreeBSD 5.2.1, NetBSD 3.0, OpenBSD 3.8, Solaris 9, Interix 3.5.
15 This function is not declared (without @code{-D_GNU_SOURCE}) on some platforms:
19 Portability problems not fixed by Gnulib: