stack is opt-in

Author: fommil

haskell-compile.el

@@ -178,7 +178,8 @@ base directory for build tools, or the current buffer for
                         'haskell--compile-cabal-last
                         haskell-compile-cabal-build-command
                         haskell-compile-cabal-build-alt-command)
-    (if-let ((stackdir (locate-dominating-file default-directory "stack.yaml")))
+    (if-let ((stackdir (and haskell-compile-ignore-cabal
+                            locate-dominating-file default-directory "stack.yaml")))
         (haskell--compile stackdir edit-command
                           'haskell--compile-stack-last
                           haskell-compile-stack-build-command