@node copysignl
@section @code{copysignl}
@findex copysignl

POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/copysignl.html}

Gnulib module: copysignl

Portability problems fixed by Gnulib:
@itemize
@item
This function is missing on some platforms:
FreeBSD 5.2.1, NetBSD 5.0, OpenBSD 3.8, Minix 3.1.8, AIX 5.1, HP-UX 11, older IRIX 6.5, Solaris 9, Cygwin, MSVC 9, Interix 3.5.
@end itemize

Portability problems not fixed by Gnulib:
@itemize
@end itemize