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-rw-r--r--src/Hakyll/Core/Rules.hs2
1 files changed, 2 insertions, 0 deletions
diff --git a/src/Hakyll/Core/Rules.hs b/src/Hakyll/Core/Rules.hs
index 8037ffb..66210b6 100644
--- a/src/Hakyll/Core/Rules.hs
+++ b/src/Hakyll/Core/Rules.hs
@@ -171,6 +171,8 @@ preprocess = Rules . liftIO
-- | Advanced usage: add extra dependencies to compilers. Basically this is
-- needed when you're doing unsafe tricky stuff in the rules monad, but you
-- still want correct builds.
+--
+-- A useful utility for this purpose is 'makePatternDependency'.
rulesExtraDependencies :: [Dependency] -> Rules a -> Rules a
rulesExtraDependencies deps = Rules . censor addDependencies . unRules
where