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

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

diff --git a/doc/posix-headers/string.texi b/doc/posix-headers/string.texi
index 42f67b9..56a5dfc 100644 (file)
--- a/doc/posix-headers/string.texi
+++ b/doc/posix-headers/string.texi
@@ -7,6 +7,10 @@ Gnulib module: string
 
 Portability problems fixed by Gnulib:
 @itemize
+@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: