#include "syslib.h"/*===========================================================================* *                                sys_sigreturn				     * *===========================================================================*/PUBLIC int sys_sigreturn(proc_nr, sig_ctxt)int proc_nr;				/* for which process */struct sigmsg *sig_ctxt;		/* POSIX style handling */{    message m;    int result;    m.SIG_PROC = proc_nr;    m.SIG_CTXT_PTR = (char *) sig_ctxt;    result = _taskcall(SYSTASK, SYS_SIGRETURN, &m);    return(result);}