From 7d2dbfc3ddfa756c855cc01d8f66b236e493f476 Mon Sep 17 00:00:00 2001
From: Austin Seipp <austin@well-typed.com>
Date: Mon, 31 Mar 2014 06:47:44 -0500
Subject: [PATCH] Temporarily fight off build bogons on OS X

Right now there's a bug with Clang that prevents 'cabal haddock' from
working nicely. But there's an easy fix for now.

Signed-off-by: Austin Seipp <austin@well-typed.com>
(cherry picked from commit 52c6dc970272437aa83a936fc1fe63977fa6178d)
---
 ghc.mk | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ghc.mk b/ghc.mk
index f864443e21fe..eeb0d6a11dc1 100644
--- a/ghc.mk
+++ b/ghc.mk
@@ -1350,7 +1350,7 @@ validate_build_xhtml:
 	cd libraries/xhtml && ./Setup configure --with-ghc="$(BINDIST_PREFIX)/bin/ghc" $(BINDIST_HADDOCK_FLAG) $(BINDIST_LIBRARY_FLAGS) --global --builddir=dist-bindist --prefix="$(BINDIST_PREFIX)"
 	cd libraries/xhtml && ./Setup build   --builddir=dist-bindist
 ifeq "$(HADDOCK_DOCS)" "YES"
-	cd libraries/xhtml && ./Setup haddock --builddir=dist-bindist
+	cd libraries/xhtml && ./Setup haddock --ghc-options=-optP-P --builddir=dist-bindist
 endif
 	cd libraries/xhtml && ./Setup install --builddir=dist-bindist
 	cd libraries/xhtml && ./Setup clean   --builddir=dist-bindist
-- 
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