From 912214e34f2007af90daeb721c13653538480d58 Mon Sep 17 00:00:00 2001
From: "Jan Alexander Steffens (heftig)" <jsteffens@make.tv>
Date: Thu, 24 Oct 2019 15:40:25 +0200
Subject: [PATCH] opencv: Don't error when unable to detect OpenCV data dir

Instead, mark OpenCV as not found. We error out later if OpenCV was
explicitly enabled.
---
 ext/opencv/meson.build | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/ext/opencv/meson.build b/ext/opencv/meson.build
index 7160a07..d84d12f 100644
--- a/ext/opencv/meson.build
+++ b/ext/opencv/meson.build
@@ -95,10 +95,14 @@ if opencv_found
       if r.returncode() == 0
         gstopencv_cargs += '-DOPENCV_PATH_NAME="opencv4"'
       else
-        error('Unable to detect OpenCV data directory')
+        message('Unable to detect OpenCV data directory')
+        opencv_found = false
       endif
     endif
   endif
+endif
+
+if opencv_found
   gstopencv = library('gstopencv',
     gstopencv_sources,
     cpp_args : gst_plugins_bad_args + gstopencv_cargs + [ '-DGST_USE_UNSTABLE_API' ],
-- 
2.7.4