@node stdlib.h
@section @file{stdlib.h}
-POSIX specification: @url{http://www.opengroup.org/susv3xbd/stdlib.h.html}
+POSIX specification:@* @url{http://www.opengroup.org/susv3xbd/stdlib.h.html}
Gnulib module: stdlib
some platforms.
@item
The macro @code{EXIT_FAILURE} is incorrectly defined on Tandem/NSK.
+
+@item
+Some platforms provide a @code{NULL} macro that cannot be used in arbitrary
+expressions:
+NetBSD 5.0
@end itemize
Portability problems not fixed by Gnulib: