Added a comment

doc/bugs/More_build_oddities_under_OpenBSD/comment_15_ad4b7191c9b8f67def33b26a1d762a5d._comment

@@ -0,0 +1,26 @@
+[[!comment format=mdwn
+ username="http://joeyh.name/"
+ ip="209.250.56.163"
+ subject="comment 15"
+ date="2014-02-08T20:56:10Z"
+ content="""
+I think you need to find which calls to setSocketOption are failing and/or what value is causing the crash. It's a bit of a pain to get a backtrace on error (would need to build everything with profiling enabled and run git-annex with +RTS -xc options). Probably simplest to modify the setSocketOption code:
+
+[[!format patch \"\"\"
+diff --git a/Network/Socket.hsc b/Network/Socket.hsc
+index 2fe62ee..0c66432 100644
+--- a/Network/Socket.hsc
++++ b/Network/Socket.hsc
+@@ -963,7 +963,7 @@ setSocketOption :: Socket
+ setSocketOption (MkSocket s _ _ _ _) so v = do
+    (level, opt) <- packSocketOption' \"setSocketOption\" so
+    with (fromIntegral v) $ \ptr_v -> do
+-   throwSocketErrorIfMinus1_ \"setSocketOption\" $
++   throwSocketErrorIfMinus1_ (\"setSocketOption \" ++ show so ++ \" \" ++ show v) $
+        c_setsockopt s level opt ptr_v
+           (fromIntegral (sizeOf (undefined :: CInt)))
+    return ()
+\"\"\"]]
+
+Which should make it print out a quite nice symbolic name of the option being used on failure, which will make it easy to find any call sites and more importantly, determine what's wrong with that option.
+"""]]