----- Ursprüngliche Mail ----
Von: Gonzhauser <[EMAIL PROTECTED]>
An: [EMAIL PROTECTED]
Gesendet: Dienstag, den 3. April 2007, 18:23:49 Uhr
Betreff: [Bug 102437] undefined references with libswt3.2-gtk-gcj
Public bug reported:
Binary package hint: eclipse
Compiling the following swt hello world:
<snip>
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.RowLayout;
public class Hello {
public static void main(String[] args) {
Display display = new Display();
final Shell shell = new Shell(display);
RowLayout layout = new RowLayout();
layout.justify = true;
layout.pack = true;
shell.setLayout(layout);
shell.setText("Hello, World!");
Label label = new Label(shell, SWT.CENTER);
label.setText("Hello, World!");
shell.pack();
shell.open ();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) display.sleep ();
}
display.dispose ();
}
}
</snip>
with
"gcj -fjni --classpath=/usr/lib/java/swt.jar -c $< -o $@"
the file Hello.o results.
However copying the file
/usr/lib/gcj/eclipse/org.eclipse.swt.gtk.linux.x86_3.2.1.v3235.jar.so
to libswt.so and linking with
"gcj --main=Hello -o Hello Hello.o -L. -lswt"
results in the following error message:
Hello.o: In function `void Hello::main(JArray<java::lang::String*>*)':
Hello.java:(.text+0x16): undefined reference to
`org::eclipse::swt::widgets::Display::class$'
Hello.java:(.text+0x31): undefined reference to
`org::eclipse::swt::widgets::Shell::class$'
Hello.java:(.text+0x53): undefined reference to
`org::eclipse::swt::layout::RowLayout::class$'
Hello.java:(.text+0xb4): undefined reference to
`org::eclipse::swt::widgets::Label::class$'
collect2: ld returned 1 exit status
If I manually compile swt jar myself with
gcj -fjni -c /usr/lib/java/swt.jar
to swt.o and link with
gcj -shared -fPIC -fjni -o libswt.o swt.o -o libswt.so
linking like above with
"gcj --main=Hello -o Hello Hello.o -L. -lswt"
works.
This is with libswt3.2-gtk-gcj, libswt3.2-gtk-java and libswt3.2-gtk-
jni.
Thanks,
GH
** Affects: eclipse (Ubuntu)
Importance: Undecided
Status: Unconfirmed
--
undefined references with libswt3.2-gtk-gcj
https://bugs.launchpad.net/bugs/102437
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--
undefined references with libswt3.2-gtk-gcj
https://bugs.launchpad.net/bugs/102437
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