--- kineticstools.orig/setup.py
+++ kineticstools/setup.py
@@ -20,6 +20,7 @@
     exclude_package_data={'kineticsTools': ['tree_predict.c']},
     ext_modules=[Extension('kineticsTools/tree_predict', ['kineticsTools/tree_predict.c'],
                            extra_compile_args=['-O3', '-shared', '-std=c99'],
+                           extra_link_args=['-lc'],
                            export_symbols=['innerPredict', 'innerPredictCtx', 'init_native'])],
     zip_safe=False,
     entry_points={'console_scripts': [