From 5d01f48192b6f8d4738f015dcf205b0ee9e3f702 Mon Sep 17 00:00:00 2001
From: Stanislav Ershov <digital.stream.of.mind@gmail.com>
Date: Sun, 28 Oct 2018 07:51:13 +0300
Subject: [PATCH] workaround for cmake < 3.12

---
 CMakeLists.txt | 13 ++++++++++++-
 1 file changed, 12 insertions(+), 1 deletion(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index e170ea596..aa9413ae0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -68,7 +68,18 @@ find_package(ZLIB REQUIRED)
 find_package(FFmpeg REQUIRED)
 find_package(Opus REQUIRED)
 find_package(Qt5 COMPONENTS Core Gui Widgets Network REQUIRED)
-find_package(Python3 REQUIRED)
+
+if(CMAKE_VERSION VERSION_GREATER_EQUAL "3.12.0")
+    find_package(Python3 REQUIRED)
+else()
+    # TODO: remove when we will update cmake required version
+    find_package(PythonInterp)
+    if((PYTHONINTERP_FOUND) AND (PYTHON_VERSION_MAJOR GREATER 2))
+        set(Python3_EXECUTABLE ${PYTHON_EXECUTABLE})
+    else()
+        message(FATAL_ERROR "Python 3 is required")
+    endif()
+endif()
 
 if (NOT SWSCALE_FOUND)
     message(FATAL_ERROR "FFmpeg swscale is required")