Re: [platform-swt-dev] Compiling of GCJ and SWT under MacOS X

[<cyberdeth@xxxxxxxxxx>]

Okay.

This is what I get using gcj 3.4.2 downloaded from here http://hpc.sourceforge.net/ compiling this code.

      1 import org.eclipse.swt.widgets.Display;
      2 import org.eclipse.swt.widgets.Shell;
      3 import org.eclipse.swt.widgets.Label;
      4 import org.eclipse.swt.SWT;
      5 import org.eclipse.swt.layout.RowLayout;
      6 
      7 public class Hello
      8 {
      9   public static void main(String[] args)
     10   {
     11     Display display = new Display();
     12     final Shell shell = new Shell(display);
     13     RowLayout layout = new RowLayout();
     14     layout.justify = true;
     15     layout.pack = true;
     16     shell.setLayout(layout);
     17     shell.setText("Hello, World!");
     18     Label label = new Label(shell, SWT.CENTER);
     19     label.setText("Hello, World!");
     20     shell.pack();
     21     shell.open ();
     22     while (!shell.isDisposed())
     23     {
     24       if (!display.readAndDispatch()) display.sleep ();
     25     }
     26     display.dispose ();
     27   }


[iBook:~/Development/Swt/src] cyberdet% gcj -fjni Hello.java -o Hello --main=Hello -lc
java/lang/Object.java:0: fatal error: the `java.lang.Object' that was found in `/System/Library/Frameworks/
JavaVM.framework/Versions/1.4.2/Classes/classes.jar' didn't have the special zero-length `gnu.gcj.gcj-compiled' attribute.  
This generally means that your classpath is incorrectly set.  Use `info gcj "Input Options"' to see the info page describing 
how to set the classpath
compilation terminated.

[iBook:~/Development/Swt/src] cyberdet% gcj -fjni Hello.java -o Hello --main=Hello --classpath=$HOME/Development/
swt-classes/swt.jar -lc
/usr/bin/ld: Undefined symbols:
org::eclipse::swt::layout::RowLayout::class$
org::eclipse::swt::layout::RowLayout::RowLayout()
org::eclipse::swt::widgets::Label::class$
org::eclipse::swt::widgets::Label::Label(org::eclipse::swt::widgets::Composite*, int)
org::eclipse::swt::widgets::Shell::class$
org::eclipse::swt::widgets::Shell::Shell(org::eclipse::swt::widgets::Display*)
org::eclipse::swt::widgets::Display::class$
org::eclipse::swt::widgets::Display::Display()
collect2: ld returned 1 exit status

[iBook:~/Development/Swt/src] cyberdet% gcj -fjni Hello.java -o Hello --main=Hello --classpath=$HOME/Development/
swt-classes/swt.jar -lc -L$HOME/Development/swt-classes -lswt-carbon-3063
/usr/bin/ld: can't locate file for: -lswt-carbon-3063

[iBook:~/Development/Swt/src] cyberdet% gcj -fjni Hello.java -o Hello --main=Hello --classpath=$HOME/Development/
swt-classes/swt.jar -lc $HOME/Development/swt-classes/libswt-carbon-3063.jnilib
/usr/bin/ld: /Users/cyberdeth/Development/swt-classes/libswt-carbon-3063.jnilib is input for the dynamic link editor, is 
not relocatable by the static link editor again

[iBook:~/Development/Swt/src] cyberdet% file /Users/cyberdeth/Development/swt-classes/libswt-carbon-3063.jnilib
/Users/cyberdeth/Development/swt-classes/libswt-carbon-3063.jnilib: Mach-O bundle ppc

Hope this shines some light on the subject.

Thanks

On Wed Feb  9 11:56 , Billy Biggs <vektor@xxxxxxxxxxxx> sent:

>cyberdeth@xxxxxxxxxx (cyberdeth@xxxxxxxxxx):
>
>> Hmmm. I'm going to quickly try something. will need to recompiole gcc
>> though. so will be take a while.
>> 
>> So am i correct in assuming, that if you are right, that I should be
>> able to compile a SWT application without linking against any library,
>> and just by using the classpath, except if I want to link in libgcj
>> statically, you know so i don't have to ship libgcj with...
>> 
>> Correct ?
>
>  I think that's right.  You will need to ship the SWT native libraries
>(libswt-carbon-) with your application though.
>
>  -Billy
>
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