POSIX specification:@* @url{http://www.opengroup.org/onlinepubs/9699919799/functions/logf.html}
-Gnulib module: logf
+Gnulib module: logf or logf-ieee
-Portability problems fixed by Gnulib:
+Portability problems fixed by either Gnulib module @code{logf} or @code{logf-ieee}:
@itemize
@item
This function is missing on some platforms:
OSF/1 5.1.
@end itemize
+Portability problems fixed by Gnulib module @code{logf-ieee}:
+@itemize
+@item
+This function returns a wrong value for a negative argument on some platforms:
+NetBSD 5.1.
+@end itemize
+
Portability problems not fixed by Gnulib:
@itemize
@end itemize