Warning message while makefile compilation

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Old 12-04-2007
Data Warning message while makefile compilation

Hi all,

I am trying to create an executable, but when the .pc file converting to .c file I am getting lots of warning message like

warning: old-style declaration or incorrect type for: main
warning: implicit function declaration:
warning: no explicit type given
of these 3 lines.

Any idea why I am getting these lines?

Any configuration issues?

What exactly needs to be done to solve these warning messages?

I am trying to compile this is new environment.

Any kind of suggestion would be helpful.

Thanks in advance

Last edited by vgersh99; 12-04-2007 at 08:34 AM.. Reason: vB Codes
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XtAppSetWarningMsgHandler()											       XtAppSetWarningMsgHandler()

  XtAppSetWarningMsgHandler - set the high-level warning handler.

  XtErrorMsgHandler XtAppSetWarningMsgHandler(app_context, msg_handler)
	 XtAppContext app_context;
	 XtErrorMsgHandler msg_handler;

	    Specifies the application context.

	    Specifies the new high-level warning handler.

  A pointer to the previously installed high-level warning handler.

  XtAppSetWarningMsgHandler()  registers  the  procedure  msg_handler in app_context as the procedure to be invoked by XtAppWarningMsg().  It
  returns a pointer to the previously installed high-level warning handler.

  The default high-level warning handler provided by the Intrinsics is named _XtDefaultWarningMsg().  It looks up  a  message  in  the	error
  resource  database  (see  XtAppGetErrorDatabaseText()),  substitutes	the supplied parameters into the message, and calls XtWarning().  See
  XtWarningMsgHandler(2) for an explanation of how to write a customized high-level warning handler.

  msg_handler should generally invoke the low-level warning handler to display the message.

  Note that application-context-specific error and warning handling is not implemented on many systems.  Most implementations will have  just
  one set of error handlers.  If they are set for different application contexts, the one performed last will prevail.

See Also
  XtAppError(1), XtAppErrorMsg(1), XtAppGetErrorDatabaseText(1), XtAppSetErrorHandler(1), XtAppSetErrorMsgHandler(1), XtAppSetWarningHan-
  dler(1), XtAppWarning(1), XtAppWarningMsg(1),
  XtErrorHandler(2), XtErrorMsgHandler(2).

Xt - Error Handling												       XtAppSetWarningMsgHandler()