From aaa1d5d0fbd5062c970d17bbe960d2b5ce6eeafa Mon Sep 17 00:00:00 2001
From: Matteo Pacini <matteo@codecraft.it>
Date: Sat, 20 Jul 2024 18:18:18 +0100
Subject: [PATCH] opencv2: fix clang builds

---
 pkgs/development/libraries/opencv/default.nix | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkgs/development/libraries/opencv/default.nix b/pkgs/development/libraries/opencv/default.nix
index 06cc02c47c94..91201cb57625 100644
--- a/pkgs/development/libraries/opencv/default.nix
+++ b/pkgs/development/libraries/opencv/default.nix
@@ -56,6 +56,8 @@ stdenv.mkDerivation rec {
 
   nativeBuildInputs = [ cmake pkg-config unzip ];
 
+  CXXFLAGS = lib.optionalString stdenv.cc.isClang "-std=c++14";
+
   env.NIX_CFLAGS_COMPILE = lib.optionalString enableEXR "-I${ilmbase.dev}/include/OpenEXR";
 
   cmakeFlags = [