| <?xml version="1.0" encoding="UTF-8"?> |
| <!DOCTYPE pkgmetadata SYSTEM "http://www.gentoo.org/dtd/metadata.dtd"> |
| <pkgmetadata> |
| <herd>haskell</herd> |
| <longdescription> |
| @cabal-helper@ provides a library which wraps the internal use of executables |
| to lift the restrictions imposed by linking against versions of GHC before |
| @7.10@. |
| |
| @cabal-helper@ uses a wrapper executable to compile the actual cabal-helper |
| executable at runtime while linking against an arbitrary version of |
| Cabal. This runtime-compiled helper executable is then used to extract |
| various bits and peices from Cabal\'s on disk state (dist/setup-config) |
| written by it's configure command. |
| |
| In addition to this the wrapper executable also supports installing any |
| version of Cabal from hackage in case it cannot be found in any available |
| package database. The wrapper installs these instances of the Cabal library |
| into a private package database so as to not interfere with the user's |
| packages. |
| |
| Furthermore the wrapper supports one special case namely reading a state |
| file for Cabal itself. This is needed as Cabal compiles it's Setup.hs using |
| itself and not using any version of Cabal installed in any package database. |
| |
| @cabal-helper@ can compile with @Cabal >= 1.14@ but requires @Cabal >= 1.16@ |
| at runtime. |
| </longdescription> |
| </pkgmetadata> |
