compile problem

["Paul Akkermans" <paulakkermans@wanadoo.nl>]

Hi everyone,

 

I am trying to compile the following program. But from the output I get the feeling that not all links are made. I believe this is due to the fact that not all libraries are included during the compilation. The problem is that I don't know what libraries to pass with my gcc test.c command so that the linking does go well. Can anybody tell me if I am correct and if so what libraries to pass during compilation?

 

Thanks in advance

 

Paul Akkermans

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#include <stdio.h>

 

#include <X11/Intrinsic.h>
#include <X11/StringDefs.h>
#include <X11/Xaw/Command.h>
#include <X11/Xaw/Form.h>
#include <X11/Xaw/Box.h>

 

/*  exit the program */

 

static void exitHandler(Widget w, XtPointer callData, XtPointer clientData)
  {
  exit(0);
  }

 

/* print "hello" to stdout */

 

static void helloHandler(Widget w, XtPointer callData, XtPointer clientData)
  {
  printf("Hello\n");
  }

 

/* main program */

 

void main(int argc, char **argv)
  {
  XtAppContext appContext;
  Widget toplevel, box, topLabel, bottomPanel, helloButton, exitButton;

 

  toplevel = XtVaAppInitialize(&appContext, "AthenaDemo", NULL, 0, &argc, argv, NULL, NULL);

 

  box = XtVaCreateManagedWidget("box",boxWidgetClass,toplevel,NULL);
 
  topLabel = XtVaCreateManagedWidget("topLabel", labelWidgetClass, box,
         XtNlabel," Pick One ",
         XtNborderWidth, 0,
         NULL);
 
  bottomPanel = XtVaCreateManagedWidget("bottomPanel", formWidgetClass, box,
     XtNsensitive, True,
     XtNborderWidth, 0,
     NULL);

 

  helloButton = XtVaCreateManagedWidget("helloButton", commandWidgetClass, bottomPanel,
     XtNlabel," Hello ",
     NULL);

 

  XtAddCallback(helloButton, XtNcallback, helloHandler, NULL);

 

  exitButton = XtVaCreateManagedWidget("exitButton", commandWidgetClass, bottomPanel,
           XtNlabel," Exit ",
           XtNfromHoriz,helloButton,
           NULL);

 

  XtAddCallback(exitButton, XtNcallback, exitHandler, NULL);
  XtRealizeWidget(toplevel);
  XtAppMainLoop(appContext);
  }
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output:

debian:/home/paul/softwarecon# gcc test.c
test.c: In function `main':
test.c:26: warning: return type of `main' is not `int'
/tmp/ccKRQH3r.o: In function `main':
/tmp/ccKRQH3r.o(.text+0x50): undefined reference to `XtVaAppInitialize'
/tmp/ccKRQH3r.o(.text+0x63): undefined reference to `boxWidgetClass'
/tmp/ccKRQH3r.o(.text+0x6e): undefined reference to `XtVaCreateManagedWidget'
/tmp/ccKRQH3r.o(.text+0x7f): undefined reference to `XtStrings'
/tmp/ccKRQH3r.o(.text+0x89): undefined reference to `XtStrings'
/tmp/ccKRQH3r.o(.text+0x92): undefined reference to `labelWidgetClass'
/tmp/ccKRQH3r.o(.text+0x9d): undefined reference to `XtVaCreateManagedWidget'
/tmp/ccKRQH3r.o(.text+0xae): undefined reference to `XtStrings'
/tmp/ccKRQH3r.o(.text+0xb5): undefined reference to `XtStrings'
/tmp/ccKRQH3r.o(.text+0xbe): undefined reference to `formWidgetClass'
/tmp/ccKRQH3r.o(.text+0xc9): undefined reference to `XtVaCreateManagedWidget'
/tmp/ccKRQH3r.o(.text+0xe0): undefined reference to `XtStrings'
/tmp/ccKRQH3r.o(.text+0xe9): undefined reference to `commandWidgetClass'
/tmp/ccKRQH3r.o(.text+0xf4): undefined reference to `XtVaCreateManagedWidget'
/tmp/ccKRQH3r.o(.text+0x108): undefined reference to `XtStrings'
/tmp/ccKRQH3r.o(.text+0x111): undefined reference to `XtAddCallback'
/tmp/ccKRQH3r.o(.text+0x129): undefined reference to `XtStrings'
/tmp/ccKRQH3r.o(.text+0x132): undefined reference to `commandWidgetClass'
/tmp/ccKRQH3r.o(.text+0x13d): undefined reference to `XtVaCreateManagedWidget'
/tmp/ccKRQH3r.o(.text+0x151): undefined reference to `XtStrings'
/tmp/ccKRQH3r.o(.text+0x15a): undefined reference to `XtAddCallback'
/tmp/ccKRQH3r.o(.text+0x169): undefined reference to `XtRealizeWidget'
/tmp/ccKRQH3r.o(.text+0x178): undefined reference to `XtAppMainLoop'
collect2: ld returned 1 exit status
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