Allow to compile from git repo

lib/GHCup/Utils.hs

@@ -770,6 +770,15 @@ make args workdir = do
   let mymake = if has_gmake then "gmake" else "make"
   execLogged mymake True args [rel|ghc-make|] workdir Nothing
 
+makeOut :: [ByteString]
+        -> Maybe (Path Abs)
+        -> IO CapturedProcess
+makeOut args workdir = do
+  spaths    <- catMaybes . fmap parseAbs <$> liftIO getSearchPath
+  has_gmake <- isJust <$> liftIO (searchPath spaths [rel|gmake|])
+  let mymake = if has_gmake then [rel|gmake|] else [rel|make|]
+  liftIO $ executeOut mymake args workdir
+
 
 -- | Try to apply patches in order. Fails with 'PatchFailed'
 -- on first failure.