--- configure.orig	2013-04-16 15:44:44.000000000 +0200
+++ configure	2014-09-14 14:20:18.000000000 +0200
@@ -21736,7 +21736,7 @@
   PYTHON_EXE=none
 fi
 
-if test "x${PYTHON_EXE}" == "xnone" ; then
+if test "x${PYTHON_EXE}" = "xnone" ; then
    cs_python="/usr/bin/env python"
    # Extract the first word of "python", so it can be a program name with args.
 set dummy python; ac_word=$2
@@ -22073,7 +22073,7 @@
 fi
 
 # Test for PyQt4
-if test "x$have_gui" == "xyes" ; then
+if test "x$have_gui" = "xyes" ; then
 
   { $as_echo "$as_me:${as_lineno-$LINENO}: checking for PyQt4 version >= 4.3" >&5
 $as_echo_n "checking for PyQt4 version >= 4.3... " >&6; }