It works if I change the x to X Old: >From ntp.h #define MODE_BCLIENTx 6 /* for pylib/util.py */ In magic.py #define MODE_BCLIENTx 6 # for pylib/util.py New: #define MODE_BCLIENTX 6 /* for pylib/util.py */ MODE_BCLIENTX = 6 # for pylib/util.py -- These are my opinions. I hate spam.