RE: Compiling Lesstif on Cygwin

["Gary Nicholson" <holokin at sisna dot com>]

Igor,

Yes, this is very good. Moving the libraries to the end helps.

I find that I also have to add two additional libraries:

	-lSM and -lICE

Is this to be expected?

When I add the libraries, I get a successful compile and the
application runs.

I am very pleased. It's my first *tif application.

Thank you.

Gary

-----Original Message-----
From: Igor Pechtchanski [mailto:pechtcha@cs.nyu.edu] 
Sent: Friday, July 25, 2003 12:03 PM
To: cygwin-xfree@cygwin.com; holokine@holokine.com
Subject: RE: Compiling Lesstif on Cygwin

Gary,

> The compiler string:
>
> gcc -I/usr/X11R6/include -L/usr/X11R6/lib \
> -lXm -lXt -lX11 hello.c -o hello

The above is a classic C beginner's mistake: the libraries go to the
*end*
of the compile command, i.e., try

gcc -I/usr/X11R6/include -L/usr/X11R6/lib hello.c -o hello -lXm -lXt
-lX11

Hope this helps,
	Igor

On Fri, 25 Jul 2003, Gary Nicholson wrote:

> Brian,
>
> Thanks for taking time to reply to my email about
> Compiling Lesstif on Cygwin. Thanks for referring me
> to the cygwin-xfree mailing list.
>
> I've tried quite a few things since I posted the email
> you answered.
>
> I reinstalled the lesstif version you recommended and
> verified the compiler string you suggested is what I use.
>
> Having done those things, I get the following error:
>
>         undefined reference to '_XtVaAppInitialize'
>
> Do you know what's happening?
>
> Gary
>
> Here is the program (the first motif program in the O'Reilly book):
>
> #include <Xm/Xm.h>
> #include <Xm/PushB.h>
>
> main(argc, argv)
> char *argv[];
> {
>     Widget        toplevel, button;
>     XtAppContext  app;
>     void i_was_pushed();
>     XmString label;
>
>     toplevel = XtVaAppInitialize(&app, "Hello", NULL, 0,
>         &argc, argv, NULL, NULL);
>
>     label = XmStringCreateSimple("Push here to say hello");
>     button = XtVaCreateManagedWidget("pushme",
>         xmPushButtonWidgetClass, toplevel,
>         XmNlabelString, label,
>         NULL);
>     XmStringFree(label);
>     XtAddCallback(button, XmNactivateCallback, i_was_pushed, NULL);
>
>     XtRealizeWidget(toplevel);
>     XtAppMainLoop(app);
> }
>
> void
> i_was_pushed(w, client_data, cbs)
> Widget w;
> XtPointer client_data;
> XmPushButtonCallbackStruct *cbs;
> {
>     printf("Hello Yourself!\n");
> }
>
> The compiler string:
>
> gcc -I/usr/X11R6/include -L/usr/X11R6/lib \
> -lXm -lXt -lX11 hello.c -o hello
>
> -----Original Message-----
> From: Brian Ford [mailto:ford@vss.fsi.com]
> Sent: Thursday, July 24, 2003 5:33 PM
> To: Gary Nicholson
> Cc: lesstif@lesstif.org
> Subject: Re: Compiling Lesstif on Cygwin
>
> On Sun, 20 Jul 2003, Gary Nicholson wrote:
>
> >I've installed Cygwin on Windows XP. The X Server starts and runs
with
> >no errors.
> >
> >I installed lesstif-cygwin-0.93.8.
> >
> lesstif-0.93.41-1 is the "supported" package available via the normal
> Cygwin setup installer at www.cygwin.com.  Please use it.
>
> On Mon, 21 Jul 2003, Gary Nicholson wrote:
>
> >I am going to move the header files back to their
> >original location and keep exploring how to set the
> >include path for g++.
> >
>
> This is basic C compiler stuff.  Add -I/usr/X11R6/include to the
> compile line and -L/usr/X11R6/lib to the link line.
>
> These sort of questions are probably better suited for
> cygwin-xfree@cygwin.com.
>
> Cygwin's reluctant lesstif maintainer.

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