From: Corbin Foucart <corbin.foucart@gmail.com>
Date: Fri, 22 Apr 2022 05:56:30 +0000 (-0400)
Subject: Fixes CMake version > 3.12 python-binding build failure due to deprecated FindPythonI... 
X-Git-Tag: v9.4.0-rc1~240^2
X-Git-Url: https://gitweb.dealii.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=refs%2Fpull%2F13631%2Fhead;p=dealii.git

Fixes CMake version > 3.12 python-binding build failure due to deprecated FindPythonInterp call.
---

diff --git a/contrib/python-bindings/CMakeLists.txt b/contrib/python-bindings/CMakeLists.txt
index 51e72bf7c8..258b04e2dd 100644
--- a/contrib/python-bindings/CMakeLists.txt
+++ b/contrib/python-bindings/CMakeLists.txt
@@ -21,7 +21,14 @@ IF(DEAL_II_COMPONENT_PYTHON_BINDINGS)
   #
   # Find Python:
   #
-  INCLUDE(FindPythonInterp)
+  # Since CMake 3.12, FindPythonInterp is deprecated.
+  if (CMAKE_VERSION VERSION_LESS 3.12)
+    INCLUDE(FindPythonInterp)
+  else()
+    FIND_PACKAGE(Python3)
+    set(PYTHON_VERSION_MAJOR ${Python3_VERSION_MAJOR})
+    set(PYTHON_VERSION_MINOR ${Python3_VERSION_MINOR})
+  endif()
   INCLUDE(FindPythonLibs)
 
   IF(FEATURE_BOOST_BUNDLED_CONFIGURED)