From 72d82e52f2a6225686d9668790ac33c1d1743193 Mon Sep 17 00:00:00 2001
From: Matthew Pickering <matthewtpickering@gmail.com>
Date: Tue, 21 Aug 2018 08:34:50 +0100
Subject: Load plugins when starting a GHC session (#905)

Fixes #900
---
 haddock-api/src/Haddock.hs | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

(limited to 'haddock-api/src')

diff --git a/haddock-api/src/Haddock.hs b/haddock-api/src/Haddock.hs
index 40da7ceb..d294b612 100644
--- a/haddock-api/src/Haddock.hs
+++ b/haddock-api/src/Haddock.hs
@@ -75,6 +75,7 @@ import Packages
 import Panic (handleGhcException)
 import Module
 import FastString
+import qualified DynamicLoading
 
 --------------------------------------------------------------------------------
 -- * Exception handling
@@ -448,7 +449,10 @@ withGhc' libDir flags ghcActs = runGhc (Just libDir) $ do
   -- that may need to be re-linked: Haddock doesn't do any
   -- dynamic or static linking at all!
   _ <- setSessionDynFlags dynflags''
-  ghcActs dynflags''
+  hscenv <- GHC.getSession
+  dynflags''' <- liftIO (DynamicLoading.initializePlugins hscenv dynflags'')
+  _ <- setSessionDynFlags dynflags'''
+  ghcActs dynflags'''
   where
 
     -- ignore sublists of flags that start with "+RTS" and end in "-RTS"
-- 
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