From 6eeef0b6359bfebcd47ab5b63b57371dea53fde7 Mon Sep 17 00:00:00 2001
From: Martin Pulec <martin.pulec@cesnet.cz>
Date: Fri, 21 Oct 2022 11:44:07 +0200
Subject: [PATCH] configure: fail if OpenCV requested but not found

---
 configure.ac | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/configure.ac b/configure.ac
index b8c5df886..6b35b8bf9 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1364,6 +1364,10 @@ else
         opencv_version=
 fi
 
+if test "$opencv" = no && test "$opencv_req" = yes; then
+        AC_MSG_ERROR([OpenCV dependencies not found!]);
+fi
+
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