xdp-tools: patch to allow building with Emacs 30 (#386619)

pkgs/tools/networking/xdp-tools/default.nix

@@ -25,6 +25,13 @@ stdenv.mkDerivation rec {
     hash = "sha256-NJawacCrmTuRXsOiAOMD8RaljPnuPFISoWEgiDcInw8=";
   };
 
+  patches = [
+    # Allow building with emacs 30
+    # Submitted upstream: https://github.com/xdp-project/xdp-tools/pull/484
+    # FIXME: remove when merged
+    ./emacs-30.patch
+  ];
+
   outputs = [
     "out"
     "lib"

pkgs/tools/networking/xdp-tools/emacs-30.patch

@@ -0,0 +1,13 @@
+diff --git a/configure b/configure
+index 271c370..33aabfa 100755
+--- a/configure
++++ b/configure
+@@ -97,7 +97,7 @@ check_toolchain()
+         EMACS=""
+     else
+         emacs_version=$($EMACS --version 2>/dev/null | head -n 1)
+-        if echo $emacs_version | grep -Eq 'GNU Emacs 2[6789]'; then
++        if echo $emacs_version | grep -Eq 'GNU Emacs (2[6789]|30)'; then
+             echo "using emacs: $emacs_version"
+         else
+             echo "not using emacs: $emacs_version"