From bb41b7f308e864828c32d51ce65d34ca5afdd704 Mon Sep 17 00:00:00 2001
From: Lars Wendler <polynomial-c@gentoo.org>
Date: Mon, 13 Jan 2020 13:53:52 +0100
Subject: [PATCH 2/2] CMakeLists.txt: Add USE_PYTHON{2,3} options

---
 CMakeLists.txt | 13 +++++++++++--
 1 file changed, 11 insertions(+), 2 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index a4504e7a5..73b6a1820 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -118,8 +118,17 @@ find_package(PVRTools)
 find_package(Lua51)
 find_package(TOLUAPP)
 
-find_package(Python2 COMPONENTS Interpreter Development)
-find_package(Python3 COMPONENTS Interpreter Development)
+option(USE_PYTHON2 "Use deprecated python2 instead of python3" OFF)
+option(USE_PYTHON3 "Use python3" ON)
+if(USE_PYTHON2)
+    find_package(Python2 COMPONENTS Interpreter Development)
+endif()
+if(USE_PYTHON3)
+    find_package(Python3 COMPONENTS Interpreter Development)
+endif()
+if(NOT USE_PYTHON3 AND NOT USE_PYTHON2)
+    message(FATAL_ERROR "You need to select one python interpreter")
+endif()
 find_package(Boost)
 if(${Boost_VERSION} GREATER_EQUAL 106700)
     if (Python2_FOUND)
-- 
2.24.1