rPackages.waysign: fix build

pkgs/development/r-modules/default.nix

@@ -531,6 +531,10 @@ let
       cargo
       rustc
     ];
+    waysign = with pkgs; [
+      cargo
+      rustc
+    ];
     fftw = [ pkgs.fftw.dev ];
     fftwtools = with pkgs; [
       fftw.dev
@@ -2253,6 +2257,10 @@ let
       ];
     });
 
+    waysign = old.waysign.overrideAttrs (attrs: {
+      postPatch = "patchShebangs configure";
+    });
+
     purrr = old.purrr.overrideAttrs (attrs: {
       patchPhase = "patchShebangs configure";
     });