source: vendor/python/2.5/Modules/python.c

/* Minimal main program -- everything is loaded from the library */

#include "Python.h"

#ifdef __FreeBSD__
#include <floatingpoint.h>
#endif

int
main(int argc, char **argv)
{
        /* 754 requires that FP exceptions run in "no stop" mode by default,
         * and until C vendors implement C99's ways to control FP exceptions,
         * Python requires non-stop mode.  Alas, some platforms enable FP
         * exceptions by default.  Here we disable them.
         */
#ifdef __FreeBSD__
        fp_except_t m;

        m = fpgetmask();
        fpsetmask(m & ~FP_X_OFL);
#endif
        return Py_Main(argc, argv);
}