diff --git a/dolo/__init__.py b/dolo/__init__.py
index 5d3b57b5..fe391a36 100644
--- a/dolo/__init__.py
+++ b/dolo/__init__.py
@@ -1,4 +1,4 @@
-__version__ = "0.4.4"
+from dolo.version import __version_info__, __version__
 
 from dolo.config import *
 
diff --git a/setup.py b/setup.py
index 402fe037..62b6f9d5 100644
--- a/setup.py
+++ b/setup.py
@@ -4,7 +4,8 @@
 from Cython.Distutils import build_ext
 import numpy as np
 
-from dolo import __version__
+# get version number
+exec( open('dolo/version.py').read())
 
 setup(
 
@@ -28,13 +29,13 @@
         Extension(
 		    'dolo.numeric.interpolation.splines_filter',
 		    ['dolo/numeric/interpolation/splines_filter.pyx'],
-            extra_compile_args=['-O3', '-fopenmp']
+            extra_compile_args=['-O3']
         ),
 
         Extension(
 		    'dolo.numeric.interpolation.splines_cython',
 		    ['dolo/numeric/interpolation/splines_cython.pyx'],
-            extra_compile_args=['-O3', '-fopenmp']
+            extra_compile_args=['-O3']
         ),
 
         Extension(