Display Cabal version in configure output with -v

eg "Using Cabal-1.5.1 compiled by ghc-6.8" Annoyingly ghc doesn't give us its full version number.
gentoo-haskell · May 9, 2008 · 314c721 · 314c721
1 parent 809f085
commit 314c721
Showing 1 changed file with 2 additions and 0 deletions.
diff --git a/Distribution/Simple/Configure.hs b/Distribution/Simple/Configure.hs
@@ -432,6 +432,8 @@ configure (pkg_descr0, pbi) cfg
         unless (isAbsolute (prefix dirs)) $ die $
             "expected an absolute directory name for --prefix: " ++ prefix dirs
 
+        info verbosity $ "Using " ++ display currentCabalId
+                      ++ " compiled by " ++ display currentCompilerId
         info verbosity $ "Using compiler: " ++ showCompilerId comp
         info verbosity $ "Using install prefix: " ++ prefix dirs