rPackages.datefixR: fix build

pkgs/development/r-modules/default.nix

@@ -477,6 +477,10 @@ let
         zlib.dev
       ]
       ++ lib.optional stdenv.hostPlatform.isDarwin pkgs.llvmPackages.openmp;
+    datefixR = with pkgs; [
+      cargo
+      rustc
+    ];
     devEMF = with pkgs; [ xorg.libXft.dev ];
     DEploid_utils = [ pkgs.zlib.dev ];
     diversitree = with pkgs; [
@@ -1872,6 +1876,10 @@ let
       '';
     });
 
+    datefixR = old.datefixR.overrideAttrs (attrs: {
+      postPatch = "patchShebangs configure";
+    });
+
     PICS = old.PICS.overrideAttrs (attrs: {
       postPatch = ''
         # https://developer.r-project.org/blosxom.cgi/R-devel/NEWS/2025/01/08#n2025-01-08