Add lower bound to base

nobrakal · nobrakal · commit a72c423d0121 · 2018-05-07T09:45:49.000+02:00
diff --git a/fgl.cabal b/fgl.cabal
@@ -65,7 +65,7 @@ library {
     other-modules:
         Paths_fgl
 
-    build-depends:    base < 5
+    build-depends:    base >= 4.3 && < 5
                     , transformers
                     , array
 
