flake: fix ncurses on vivado

Signed-off-by: Florian Agbuya <fa@m-labs.ph>

flake.nix

@@ -43,9 +43,17 @@
         cargo = rust;
       });
 
-      vivadoDeps = pkgs: with pkgs; [
+      vivadoDeps = pkgs: with pkgs; let
+      # Apply patch from https://github.com/nix-community/nix-environments/pull/54
+      # to fix ncurses libtinfo.so's soname issue
+        ncurses' = ncurses5.overrideAttrs (old: {
+          configureFlags = old.configureFlags ++ [ "--with-termlib" ];
+          postFixup = "";
+        });
+      in
+      [
         libxcrypt-legacy
-        ncurses5
+        (ncurses'.override { unicodeSupport = false; })
         zlib
         libuuid
         xorg.libSM