From 27f87d340e1a24071c728a37c9a00eb5a837f41b Mon Sep 17 00:00:00 2001
From: Matthew Broadway <matthew.broadway@navenio.com>
Date: Wed, 13 Feb 2019 09:45:06 +0000
Subject: [PATCH] caching cmake variables

---
 cmake/GtsamCythonWrap.cmake | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/cmake/GtsamCythonWrap.cmake b/cmake/GtsamCythonWrap.cmake
index 520d72a32..bc6f230b0 100644
--- a/cmake/GtsamCythonWrap.cmake
+++ b/cmake/GtsamCythonWrap.cmake
@@ -3,6 +3,8 @@
 # in the current environment are different from the cached!
 unset(PYTHON_EXECUTABLE CACHE)
 unset(CYTHON_EXECUTABLE CACHE)
+unset(PYTHON_INCLUDE_DIR CACHE)
+unset(PYTHON_MAJOR_VERSION CACHE)
 find_package(Cython 0.25.2 REQUIRED)
 
 # User-friendly Cython wrapping and installing function.