fltk{,14}: add update script

pkgs/development/libraries/fltk/1.4.nix

@@ -41,6 +41,8 @@
   wayland-scanner,
 
   withExamples ? (stdenv.buildPlatform == stdenv.hostPlatform),
+
+  nix-update-script,
 }:
 
 # pango support depends on Xft
@@ -197,6 +199,13 @@ stdenv.mkDerivation (finalAttrs: {
       --replace-fail "/$out/" "/"
   '';
 
+  passthru.updateScript = nix-update-script {
+    extraArgs = [
+      "--version-regex"
+      "release-(1\\.4\\.[0-9.]+)"
+    ];
+  };
+
   meta = {
     description = "C++ cross-platform lightweight GUI library";
     homepage = "https://www.fltk.org";

pkgs/development/libraries/fltk/default.nix

@@ -33,6 +33,8 @@
 
   withExamples ? (stdenv.buildPlatform == stdenv.hostPlatform),
   withShared ? true,
+
+  nix-update-script,
 }:
 
 stdenv.mkDerivation (finalAttrs: {
@@ -180,6 +182,13 @@ stdenv.mkDerivation (finalAttrs: {
       --replace-fail "/$out/" "/"
   '';
 
+  passthru.updateScript = nix-update-script {
+    extraArgs = [
+      "--version-regex"
+      "release-(1\\.3\\.[0-9.]+)"
+    ];
+  };
+
   meta = {
     description = "C++ cross-platform lightweight GUI library";
     homepage = "https://www.fltk.org";