diff options
Diffstat (limited to 'CabalHelper/Compat')
| -rw-r--r-- | CabalHelper/Compat/Version.hs | 25 |
1 files changed, 25 insertions, 0 deletions
diff --git a/CabalHelper/Compat/Version.hs b/CabalHelper/Compat/Version.hs new file mode 100644 index 0000000..d2389aa --- /dev/null +++ b/CabalHelper/Compat/Version.hs @@ -0,0 +1,25 @@ +{-# LANGUAGE CPP #-} +module CabalHelper.Compat.Version + ( DataVersion + , toDataVersion + , fromDataVersion + , Data.Version.showVersion + ) where + +import qualified Data.Version +import qualified Distribution.Version (Version) +#if MIN_VERSION_Cabal(2,0,0) +import qualified Distribution.Version (versionNumbers, mkVersion) +#endif + +type DataVersion = Data.Version.Version + +toDataVersion :: Distribution.Version.Version -> Data.Version.Version +fromDataVersion :: Data.Version.Version -> Distribution.Version.Version +#if MIN_VERSION_Cabal(2,0,0) +toDataVersion v = Data.Version.Version (Distribution.Version.versionNumbers v) [] +fromDataVersion (Data.Version.Version vs _) = Distribution.Version.mkVersion vs +#else +toDataVersion = id +fromDataVersion = id +#endif |