diff --git a/Setup.hs b/Setup.hs
--- a/Setup.hs
+++ b/Setup.hs
@@ -53,12 +53,15 @@
 import Distribution.Simple.Setup (
   CleanFlags,
   ConfigFlags,
-  CopyDest (NoCopyDest),
+  CopyDest (CopyTo, NoCopyDest),
   cleanVerbosity,
   configConfigurationsFlags,
   configVerbosity,
+  copyDest,
   copyVerbosity,
+  flagToMaybe,
   fromFlagOrDefault,
+  installDistPref,
   installVerbosity,
   )
 import Distribution.Simple.UserHooks (
@@ -110,11 +113,14 @@
   , preTest = \_ _ -> addLibDir
   , preCopy = \_ _ -> addLibDir  -- Not sure if necessary, but doesn't hurt.
   , copyHook = \pd lbi uh cf -> do let verbosity = fromFlagOrDefault normal $ copyVerbosity cf
-                                   doInstall verbosity pd lbi
+                                       dest = fromFlagOrDefault NoCopyDest $ copyDest cf
+                                   doInstall verbosity pd lbi dest
                                    copyHook simpleUserHooks pd lbi uh cf
   , preInst = \_ _ -> addLibDir  -- Not sure if necessary, but doesn't hurt.
   , instHook = \pd lbi uh if' -> do let verbosity = fromFlagOrDefault normal $ installVerbosity if'
-                                    doInstall verbosity pd lbi
+                                        dest = maybe NoCopyDest CopyTo $
+                                               flagToMaybe $ installDistPref if'
+                                    doInstall verbosity pd lbi dest
                                     instHook simpleUserHooks pd lbi uh if'
   , preReg = \_ _ -> addLibDir  -- Necessary.
   , cleanHook = \pd z uh cf -> do doClean cf
@@ -163,7 +169,7 @@
 
   -- Parse the Qt version to use from flags and the environment, and export it
   -- to the generator.
-  (_, qtVersion) <- exportQtVersion configFlags localBuildInfo
+  qtVersion <- exportQtVersion configFlags localBuildInfo
 
   -- Ensure that we're using the same version of Qt that qtah-cpp is.
   let qtahCppQtVersionFile = qtahCppLibDir </> "qtah-qt-version"
@@ -182,10 +188,10 @@
   -- Generate binding source code.
   runDbProgram verbosity generatorProgram programDb ["--gen-hs", "src"]
 
-doInstall :: Verbosity -> PackageDescription -> LocalBuildInfo -> IO ()
-doInstall verbosity packageDesc localBuildInfo = do
+doInstall :: Verbosity -> PackageDescription -> LocalBuildInfo -> CopyDest -> IO ()
+doInstall verbosity packageDesc localBuildInfo copyDest = do
   -- Record what version of Qt we are using.
-  let libDir = libdir $ absoluteInstallDirs packageDesc localBuildInfo NoCopyDest
+  let libDir = libdir $ absoluteInstallDirs packageDesc localBuildInfo copyDest
   createDirectoryIfMissing True libDir
   installOrdinaryFile verbosity
                       (buildDir localBuildInfo </> "qtah-qt-version")
@@ -237,7 +243,8 @@
             getDirectoryContents dir
 
 -- | This function should be called in a 'postConf' hook.  It determines the
--- requested Qt version based on package flags and the program environment.
+-- requested Qt version based on package flags and the program environment, and
+-- sets the environment variables @QTAH_QT@ and @QT_SELECT@ appropriately.
 --
 -- The mutually exclusive package flags @qt4@ and @qt5@ specify a preference on
 -- a major version of Qt.  Additionally, the environment variable @QTAH_QT@ can
@@ -256,12 +263,14 @@
 -- (@String@).
 --
 -- !!! KEEP THIS FUNCTION IN SYNC WITH qtah-cpp/Setup.hs !!!
-exportQtVersion :: ConfigFlags -> LocalBuildInfo -> IO (Maybe Int, String)
+exportQtVersion :: ConfigFlags -> LocalBuildInfo -> IO String
 exportQtVersion configFlags localBuildInfo = do
   let verbosity = fromFlagOrDefault normal $ configVerbosity configFlags
       programDb = withPrograms localBuildInfo
 
-  -- Determine what version of Qt to use.
+  -- Determine what version of Qt to use.  If we have a Qt version preference
+  -- specified, either through package flags or through QTAH_QT, then
+  -- maybeQtMajor will get that value.
   let PackageName myName = pkgName $ package $ localPkgDescr localBuildInfo
   maybeQtMajor <- case reverse myName of
     -- If the package name ends in "-qtX", then build for Qt X (whatever the
@@ -320,6 +329,13 @@
 
       return $ qtahQtMajor <|> qtFlag
 
+  -- If we have a major version preference, then set QT_SELECT in case we're
+  -- calling QMake.  We use QT_SELECT over "-qt=X" because it doesn't break when
+  -- qtchooser isn't available.
+  case maybeQtMajor of
+    Just qtMajor -> setEnv "QT_SELECT" $ show qtMajor
+    Nothing -> return ()
+
   -- Log a message showing which Qt qtah-generator is actually using.
   generatorConfiguredProgram <-
     maybe (die $ packageName ++ ": Couldn't find qtah-generator.  Is it installed?") return $
@@ -338,4 +354,4 @@
   createDirectoryIfMissing True $ takeDirectory qtVersionFile
   writeFile qtVersionFile $ unlines [qtVersion]
 
-  return (maybeQtMajor, qtVersion)
+  return qtVersion
diff --git a/qtah-qt5.cabal b/qtah-qt5.cabal
--- a/qtah-qt5.cabal
+++ b/qtah-qt5.cabal
@@ -1,5 +1,5 @@
 name: qtah-qt5
-version: 0.1.0
+version: 0.1.1
 synopsis: Qt bindings for Haskell
 homepage: http://khumba.net/projects/qtah
 license: LGPL-3