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update to note that export bug affects GHC 7.4 as well.

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1 parent e7dd2ab commit 3e458071d8a99ca1eb2fafd87259d1d740fca776 Brent Yorgey committed
Showing with 5 additions and 3 deletions.
  1. +5 −3 src/Diagrams/Backend/Cairo.hs
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8 src/Diagrams/Backend/Cairo.hs
@@ -55,6 +55,8 @@ import Diagrams.Backend.Cairo.Internal
--
-- > renderDia Cairo (CairoOptions "foo.png" (Width 250) PNG) myDiagram
--
--- /Important note/: a bug in GHC 7.0.x prevents re-exporting this
--- data family. To bring CairoOptions into scope when using GHC 7.0.x
--- you must import "Diagrams.Backend.Cairo.Internal".
+-- /Important note/: a bug in GHC 7.0.x and 7.4.1 prevents
+-- re-exporting this data family. (Strangely, this bug seems to be
+-- present in 7.0 and 7.4 but not 7.2.) To bring CairoOptions into
+-- scope when using GHC 7.0.x or 7.4 you must import
+-- "Diagrams.Backend.Cairo.Internal".

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