Gnulib module: truncl or truncl-ieee
-Portability problems fixed by Gnulib:
+Portability problems fixed by either Gnulib module @code{truncl} or @code{truncl-ieee}:
@itemize
@item
This function is missing on some platforms:
OSF/1 4.0.
@end itemize
+Portability problems fixed by Gnulib module @code{truncl-ieee}:
+@itemize
+@item
+This function returns a positive zero for an argument between -1 and 0
+on some platforms:
+OSF/1 5.1.
+@end itemize
+
Portability problems not fixed by Gnulib:
@itemize
@end itemize