diff -crN oommf11b2/ext/oc/oc.cc oommf/ext/oc/oc.cc
*** oommf11b2/ext/oc/oc.cc	Thu Nov 20 17:41:34 2003
--- oommf/ext/oc/oc.cc	Tue Dec 12 03:57:28 2006
***************
*** 260,268 ****
--- 260,273 ----
  #endif // DEBUG_DISABLESTDIO
  
    // Disable future SIGHUP, SIGTIN and SIGTOU signals
+ #if 1 && (SYSTEM_TYPE==WINDOWS)
+   signal(SIGBREAK,SIG_IGN);
+   signal(SIGABRT,SIG_IGN);
+ #else
    signal(SIGHUP,SIG_IGN);
    signal(SIGTTIN,SIG_IGN);
    signal(SIGTTOU,SIG_IGN);
+ #endif
  }
  
  static int
***************
*** 284,290 ****
    // a value outside this set.  Note that signal() will correctly
    // return a TCL_ERROR if the value is outside the known set of
    // signals.
! #if 0 && (SYSTEM_TYPE==WINDOWS)
    if(signo!=SIGINT && signo!=SIGILL && signo!=SIGFPE
       && signo!=SIGSEGV && signo!=SIGTERM && signo!=SIGBREAK
       && signo!=SIGABRT)
--- 289,295 ----
    // a value outside this set.  Note that signal() will correctly
    // return a TCL_ERROR if the value is outside the known set of
    // signals.
! #if 1 && (SYSTEM_TYPE==WINDOWS)
    if(signo!=SIGINT && signo!=SIGILL && signo!=SIGFPE
       && signo!=SIGSEGV && signo!=SIGTERM && signo!=SIGBREAK
       && signo!=SIGABRT)