From 03f9437e6bd7b2a052464bcea58204bfe1cc9d7b Mon Sep 17 00:00:00 2001
From: eljamm <fedi.jamoussi@protonmail.ch>
Date: Tue, 2 Sep 2025 17:42:17 +0200
Subject: [PATCH] libopaque: fix build with liboprf

---
 pkgs/by-name/li/libopaque/package.nix | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/pkgs/by-name/li/libopaque/package.nix b/pkgs/by-name/li/libopaque/package.nix
index 81ee5e4174c9..f348997dd8d3 100644
--- a/pkgs/by-name/li/libopaque/package.nix
+++ b/pkgs/by-name/li/libopaque/package.nix
@@ -28,6 +28,13 @@ stdenv.mkDerivation (finalAttrs: {
     liboprf
   ];
 
+  # expand_message_xmd has been renamed to oprf_expand_message_xmd in liboprf
+  # TODO: remove in the next release
+  postPatch = ''
+    substituteInPlace opaque.c \
+      --replace-fail 'expand_message_xmd' 'oprf_expand_message_xmd'
+  '';
+
   postInstall = ''
     mkdir -p ${placeholder "out"}/lib/pkgconfig
     cp ../libopaque.pc ${placeholder "out"}/lib/pkgconfig/