stddef: fix NetBSD 5.0 NULL bug, rather than working around it

[gnulib.git] / doc / posix-headers / stdlib.texi

diff --git a/doc/posix-headers/stdlib.texi b/doc/posix-headers/stdlib.texi
index 2fc6280..6ca0c4b 100644 (file)
--- a/doc/posix-headers/stdlib.texi
+++ b/doc/posix-headers/stdlib.texi
@@ -12,6 +12,11 @@ The macros @code{EXIT_SUCCESS} and @code{EXIT_FAILURE} are not defined on
 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: