From 98b65e6c27d92c11abf9203c5e4e2ecb3d8de4e8 Mon Sep 17 00:00:00 2001
From: Nicolas Cornu <n.cornu@overkiz.com>
Date: Fri, 25 Aug 2017 10:30:56 +0200
Subject: [PATCH] Make use of python3 optionnal and generating single_sol too

---
 CMakeLists.txt | 10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 75a3b04d..44cdb515 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -177,7 +177,9 @@ set(HEADER_SRCS sol/as_args.hpp
                 sol/variadic_results.hpp
                 sol/wrapper.hpp)
 
-find_package(PythonInterp 3 REQUIRED)
-add_custom_command(OUTPUT sol.hpp COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/single.py --output ${CMAKE_CURRENT_BINARY_DIR}/sol.hpp DEPENDS ${HEADER_SRCS})
-add_custom_target(single_sol DEPENDS sol.hpp)
-install(FILES "${CMAKE_CURRENT_BINARY_DIR}/sol.hpp" DESTINATION include)
+find_package(PythonInterp 4)
+if (PYTHONINTERP_FOUND)
+  add_custom_command(OUTPUT sol.hpp COMMAND ${PYTHON_EXECUTABLE} ${CMAKE_CURRENT_SOURCE_DIR}/single.py --output ${CMAKE_CURRENT_BINARY_DIR}/sol.hpp DEPENDS ${HEADER_SRCS})
+  add_custom_target(single_sol DEPENDS sol.hpp)
+  install(FILES "${CMAKE_CURRENT_BINARY_DIR}/sol.hpp" DESTINATION include)
+endif()