--- calamares-3.2.2/CMakeLists.txt.orig	2018-09-23 15:08:02.457509790 +0200
+++ calamares-3.2.2/CMakeLists.txt	2018-09-23 15:08:10.307540896 +0200
@@ -248,7 +248,7 @@
     enable_testing()
 endif ()
 
-find_package( PythonLibs ${PYTHONLIBS_VERSION} )
+find_package( PythonLibs ${PYTHONLIBS_VERSION} EXACT REQUIRED )
 set_package_properties(
     PythonLibs PROPERTIES
     DESCRIPTION "C interface libraries for the Python 3 interpreter."