diff --git a/Misc/NEWS b/Misc/NEWS
index c123689..929c023 100644
--- a/Misc/NEWS
+++ b/Misc/NEWS
@@ -35,7 +35,8 @@
 Build
 -----
 
-TBD
+- Fix problem building on OSF1 because the compiler only accepted
+  preprocessor directives that start in column 1.  (SF bug #691793.)
 
 C API
 -----