diff --git a/src/build/build-info b/src/build/build-info
index ddc9d77..979fa14 100755
--- a/src/build/build-info
+++ b/src/build/build-info
@@ -11,7 +11,7 @@ if 'MACOSX_DEPLOYMENT_TARGET' in os.environ:
 from distutils import sysconfig as sc
 
 import sipconfig
-from PyQt4 import pyqtconfig
+#from PyQt4 import pyqtconfig
 
 def main():
     parser = argparse.ArgumentParser()
@@ -55,8 +55,7 @@ def python_site(args):
 
 
 def pyqt4_sip(args):
-    pkg_cfg = pyqtconfig._pkg_config
-    return pkg_cfg['pyqt_sip_dir']
+    return os.path.join(sipconfig.Configuration().default_sip_dir, 'PyQt4')
 
 
 def sip_inc(args):
diff --git a/src/SeExprEditor/CMakeLists.txt b/src/SeExprEditor/CMakeLists.txt
index 33c6cab..2b98580 100644
--- a/src/SeExprEditor/CMakeLists.txt
+++ b/src/SeExprEditor/CMakeLists.txt
@@ -13,9 +13,11 @@
 # You may obtain a copy of the License at
 # http://www.apache.org/licenses/LICENSE-2.0
 
+set(Python_ADDITIONAL_VERSIONS 2.7 2.6 2.5 2.4)
 find_package(PythonInterp)
 find_package(PythonLibs)
 
+if(PYTHONLIBS_FOUND)
 macro(get_build_info NAME STORAGE)
     execute_process(
         COMMAND ${PYTHON_EXECUTABLE} ${PROJECT_SOURCE_DIR}/src/build/build-info ${NAME}
@@ -118,3 +120,4 @@ ENDIF(WIN32)
             DESTINATION ${CMAKE_INSTALL_PYTHON})
 
 endif(QT4_FOUND)
+endif(PYTHONLIBS_FOUND)