diff options
| -rw-r--r-- | CabalHelper/Compile.hs | 18 |
1 files changed, 17 insertions, 1 deletions
diff --git a/CabalHelper/Compile.hs b/CabalHelper/Compile.hs index 85d4370..54771b1 100644 --- a/CabalHelper/Compile.hs +++ b/CabalHelper/Compile.hs @@ -316,8 +316,24 @@ patchyCabalVersions = [ let versionFile = dir </> "Distribution/Version.hs" versionFileTmp = versionFile ++ ".tmp" + let languagePragma = + "{-# LANGUAGE DeriveDataTypeable, StandaloneDeriving #-}" + languagePragmaCPP = + "{-# LANGUAGE CPP, DeriveDataTypeable, StandaloneDeriving #-}" + + derivingDataVersion = + "deriving instance Data Version" + derivingDataVersionCPP = unlines [ + "#if __GLASGOW_HASKELL__ < 707", + derivingDataVersion, + "#endif" + ] + vf <- readFile versionFile - writeFile versionFileTmp $ replace "deriving instance Data Version" "" vf + writeFile versionFileTmp + $ replace derivingDataVersion derivingDataVersionCPP + $ replace languagePragma languagePragmaCPP vf + renameFile versionFileTmp versionFile unpackPatchedCabal :: |