swig CHANGE always find python interpreter first

Because then searching for python libraries tries to
find the same version. This fixes problems on some ancient
distributions where the installed python libraries
are actually not known to the CMake module.

Author: michalvasko

swig/CMakeLists.txt

@@ -26,21 +26,21 @@ if(GEN_PYTHON_BINDINGS AND SWIG_FOUND)
     unset(PYTHON_INCLUDE_DIR CACHE)
     unset(PYTHON_LIBRARY_DEBUG CACHE)
     if(${GEN_PYTHON_VERSION} STREQUAL "2")
-        find_package(PythonLibs 2 REQUIRED)
         find_package(PythonInterp 2 REQUIRED)
+        find_package(PythonLibs 2 REQUIRED)
         if(NOT PYTHONLIBS_FOUND)
             message(WARNING "Did not found Python version 2.x")
-            message(STATUS "Sysrepo supports Python 2.x and Python 3.x")
+            message(STATUS "Libyang supports Python 2.x and Python 3.x")
         endif()
     elseif(${GEN_PYTHON_VERSION} STREQUAL "3")
-        find_package(PythonLibs 3 REQUIRED)
         find_package(PythonInterp 3 REQUIRED)
+        find_package(PythonLibs 3 REQUIRED)
         if(NOT PYTHONLIBS_FOUND)
             message(WARNING "Did not found Python version 3.x")
-            message(STATUS "Sysrepo supports Python 2.x and Python 3.x")
+            message(STATUS "Libyang supports Python 2.x and Python 3.x")
         endif()
     else()
-        message(WARNING "Sysrepo supports Python 2.x and Python 3.x")
+        message(WARNING "Libyang supports Python 2.x and Python 3.x")
     endif()
 endif()