From 50a4a15e56cc304759a4e7ec4a406fa73b76ca77 Mon Sep 17 00:00:00 2001
From: SrTobi <code.databyte@gmail.com>
Date: Thu, 29 Sep 2022 22:01:02 +0200
Subject: [PATCH] mlt: fixed compilation with opencv

mlt had opencv3 as buildInput but was
actually not used in the compilation because
its usage was disabled by default in mlt's cmake.
This commit activates it and supplies the appropriate opencv version,
because mlt depends now on opencv4.
---
 pkgs/development/libraries/mlt/qt-5.nix | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/pkgs/development/libraries/mlt/qt-5.nix b/pkgs/development/libraries/mlt/qt-5.nix
index 9c2c21384612..ec70dc0fbe10 100644
--- a/pkgs/development/libraries/mlt/qt-5.nix
+++ b/pkgs/development/libraries/mlt/qt-5.nix
@@ -16,7 +16,7 @@
 , qtsvg
 , fftw
 , vid-stab
-, opencv3
+, opencv4
 , ladspa-sdk
 , gitUpdater
 , ladspaPlugins
@@ -51,7 +51,7 @@ mkDerivation rec {
     sox
     fftw
     vid-stab
-    opencv3
+    opencv4
     ladspa-sdk
     ladspaPlugins
   ];
@@ -63,6 +63,7 @@ mkDerivation rec {
   cmakeFlags = [
     # RPATH of binary /nix/store/.../bin/... contains a forbidden reference to /build/
     "-DCMAKE_SKIP_BUILD_RPATH=ON"
+    "-DMOD_OPENCV=ON"
   ];
 
   qtWrapperArgs = [