Add comment about filtering package warnings in solver DSL.

[ci skip]
haskell · Oct 23, 2016 · e5bf467 · e5bf467
1 parent 4a70790
commit e5bf467
Showing 1 changed file with 3 additions and 0 deletions.
diff --git a/cabal-install/tests/UnitTests/Distribution/Solver/Modular/DSL.hs b/cabal-install/tests/UnitTests/Distribution/Solver/Modular/DSL.hs
@@ -316,6 +316,9 @@ exAvSrcPkg ex =
               }
             }
         pkgCheckErrors =
+          -- We ignore these warnings because some unit tests test that the
+          -- solver allows unknown extensions/languages when the compiler
+          -- supports them.
           let ignore = ["Unknown extensions:", "Unknown languages:"]
           in [ err | err <- C.checkPackage (packageDescription package) Nothing
              , not $ any (`isPrefixOf` C.explanation err) ignore ]