[ghc-hledger-lib] add pretty-show patch

[Jens Petersen]

commit 462eeb2e01caa23d48effd7bd9b147742fa62efe
Author: Jens Petersen <petersen at redhat.com>
Date:   Fri Aug 29 18:20:39 2014 +0900

    add pretty-show patch

 hledger-lib-pretty-show.patch |   48 +++++++++++++++++++++++++++++++++++++++++
 1 files changed, 48 insertions(+), 0 deletions(-)
---
diff --git a/hledger-lib-pretty-show.patch b/hledger-lib-pretty-show.patch
new file mode 100644
index 0000000..c939fcc
--- /dev/null
+++ b/hledger-lib-pretty-show.patch
@@ -0,0 +1,48 @@
+diff -up hledger-lib-0.23.2/hledger-lib.cabal~ hledger-lib-0.23.2/hledger-lib.cabal
+--- hledger-lib-0.23.2/hledger-lib.cabal~	2014-08-29 18:05:56.970000000 +0900
++++ hledger-lib-0.23.2/hledger-lib.cabal	2014-08-29 18:06:49.255000000 +0900
+@@ -86,8 +86,6 @@ library
+                  ,transformers >= 0.2 && < 0.4
+                  ,utf8-string >= 0.3.5 && < 0.4
+                  ,HUnit
+-  if impl(ghc >= 7.4)
+-    build-depends: pretty-show >= 1.6.4
+ 
+ source-repository head
+   type:     git
+@@ -119,8 +117,6 @@ test-suite tests
+                , test-framework-hunit
+                , time
+                , transformers
+-  if impl(ghc >= 7.4)
+-    build-depends: pretty-show >= 1.6.4
+ 
+ -- cf http://www.haskell.org/cabal/release/cabal-latest/doc/users-guide/authors.html
+ 
+diff -up hledger-lib-0.23.2/Hledger/Utils.hs~ hledger-lib-0.23.2/Hledger/Utils.hs
+--- hledger-lib-0.23.2/Hledger/Utils.hs~	2014-08-29 18:05:56.947000000 +0900
++++ hledger-lib-0.23.2/Hledger/Utils.hs	2014-08-29 18:10:00.341000000 +0900
+@@ -24,9 +24,6 @@ module Hledger.Utils (---- provide these
+                           -- module Data.PPrint,
+                           -- module Hledger.Utils.UTF8IOCompat
+                           SystemString,fromSystemString,toSystemString,error',userError',
+-#if __GLASGOW_HASKELL__ >= 704
+-                          ppShow
+-#endif
+                           -- the rest need to be done in each module I think
+                           )
+ where
+@@ -60,13 +57,8 @@ import Text.RegexPR
+ -- import Hledger.Utils.UTF8IOCompat   (readFile,writeFile,appendFile,getContents,putStr,putStrLn)
+ import Hledger.Utils.UTF8IOCompat (SystemString,fromSystemString,toSystemString,error',userError')
+ 
+-#if __GLASGOW_HASKELL__ >= 704
+-import Text.Show.Pretty (ppShow)
+-#else
+--- the required pretty-show version requires GHC >= 7.4
+ ppShow :: Show a => a -> String
+ ppShow = show
+-#endif
+ 
+ -- strings
+