treewide: Remove usage of isNull

isNull "is deprecated; just write e == null instead" says the Nix manual
2019-04-29 14:05:50 +02:00
parent 5f14e83bd6
commit 786f02f7a4
52 changed files with 89 additions and 95 deletions
@@ -96,7 +96,7 @@ let
          inherit system;
        };

-        cc = if isNull prevStage.gcc-unwrapped
+        cc = if prevStage.gcc-unwrapped == null
             then null
             else lib.makeOverridable (import ../../build-support/cc-wrapper) {
          name = "${name}-gcc-wrapper";