Index: uniconvertor-1.1.5/setup.py
===================================================================
--- uniconvertor-1.1.5/setup.py
+++ uniconvertor-1.1.5/setup.py	2012-01-30 01:46:06.983608916 +0200
@@ -97,6 +97,7 @@
 	skmod_module = Extension('uniconvertor.app.modules._sketch',
 			define_macros = [('MAJOR_VERSION', '1'),
 						('MINOR_VERSION', '1')],
+			libraries = ['m'],
 			sources = [skmod_src+'_sketchmodule.c', skmod_src+'skpoint.c', skmod_src+'skcolor.c', 
 					skmod_src+'sktrafo.c', skmod_src+'skrect.c', skmod_src+'skfm.c', 
 					skmod_src+'curvefunc.c', skmod_src+'curveobject.c', skmod_src+'curvelow.c',