develop/open_watcom: Post-SVN tidy

- Move source code from `trunk` into program root directory.
- Update build files.
- Note: Line endings standardised from `CRLF` > `LF`, so best to view diffs with whitespace changes hidden.

programs/develop/open watcom/clib/crt/exit.c

@@ -0,0 +1,84 @@
+/****************************************************************************
+*
+*                            Open Watcom Project
+*
+*    Portions Copyright (c) 1983-2002 Sybase, Inc. All Rights Reserved.
+*
+*  ========================================================================
+*
+*    This file contains Original Code and/or Modifications of Original
+*    Code as defined in and that are subject to the Sybase Open Watcom
+*    Public License version 1.0 (the 'License'). You may not use this file
+*    except in compliance with the License. BY USING THIS FILE YOU AGREE TO
+*    ALL TERMS AND CONDITIONS OF THE LICENSE. A copy of the License is
+*    provided with the Original Code and Modifications, and is also
+*    available at www.sybase.com/developer/opensource.
+*
+*    The Original Code and all software distributed under the License are
+*    distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
+*    EXPRESS OR IMPLIED, AND SYBASE AND ALL CONTRIBUTORS HEREBY DISCLAIM
+*    ALL SUCH WARRANTIES, INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF
+*    MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR
+*    NON-INFRINGEMENT. Please see the License for the specific language
+*    governing rights and limitations under the License.
+*
+*  ========================================================================
+*
+* Description:  Implementation of exit() and associated functions.
+*
+****************************************************************************/
+
+
+#include "variety.h"
+#include "rtdata.h"
+#include "exitwmsg.h"
+#include "initfini.h"
+#include "rtinit.h"
+#include <stdio.h>
+#include <stdlib.h>
+//#include "defwin.h"
+#include "widechar.h"
+#include "initarg.h"
+
+/*
+  __int23_exit is used by OS/2 as a general termination routine which unhooks
+  exception handlers.  A better name for this variable is __sig_exit.
+  __sig_exit should be the system dependent signal termination routine and
+  should replace the calls to __int23_exit and __FPE_handler_exit.
+  Each OS should define its own __sig_exit and do the appropriate thing (for
+  example, DOS version would call __int23_exit and __FPE_handler_exit)
+*/
+
+
+#if defined(__NT__) || defined(__WARP__)
+_WCRTLINK extern void (*__process_fini)( unsigned, unsigned );
+#endif
+
+
+#if !defined(__UNIX__) && !defined(__WINDOWS_386__)
+static void _null_exit_rtn() {}
+void    (*__FPE_handler_exit)() = _null_exit_rtn;
+#endif
+
+_WCRTLINK void exit( int status )
+{
+
+#if defined(__UNIX__)
+#elif defined(__WINDOWS_386__)
+#elif defined(__NT__) || defined(__WARP__)
+    __FiniRtns( FINI_PRIORITY_EXIT, 255 );
+#else
+    __FiniRtns( FINI_PRIORITY_EXIT, 255 );
+#endif
+    _exit( status );
+}
+
+
+#ifndef __NETWARE__
+
+_WCRTLINK void _exit( int status )
+{
+    __exit( status );
+}
+
+#endif