GCJ Swing/AWT working on OS X -- article

Wed Jul 21 23:04:00 GMT 2004

On Jul 21, 2004, at 5:45 PM, Michael Koch wrote:
> Am Mittwoch, 21. Juli 2004 23:38 schrieb John Gabriele:
>> Thanks to Andreas Tobler I was able to follow his lead
>> and get GCJ with Swing/AWT-enabled running on Mac OS X.
>>>> As promised, I wrote an article describing the steps we
>> went through to get it working.
>>>> http://www.bestweb.net/~john3g/gcj_osx/gcj_on_osx_gui.html
>>>> If anyone spots any errors or can offer any corrections,
>> I'd be much obliged. :)
>> I have only x86 and no MacOSX but the following line seems to be
> redundant in your description as this should be done internally to
> gij/gcj:
>> export CLASSPATH=/usr/local/gcc_cvs/share/java/libgcj-3.5.0.jar
>>> Michael
>
Hmm... it doesn't seem to be redundant on Mac OS X:
john$ gcj -o bar --main=TestAWT TestAWT.java
/usr/bin/ld: warning multiple definitions of symbol _sqrt
/usr/local/gcc_cvs/lib/gcc/powerpc-apple-darwin7.4.0/3.5.0/../../../ 
libgcj.dylib(libgcj.6.0.0.dylib-master.o) definition of _sqrt
/usr/lib/libm.dylib(sqrt970.o) definition of _sqrt
john$ ./bar
Exception in thread "main" java.awt.AWTError: Cannot load AWT toolkit: 
gnu.java.awt.peer.gtk.GtkToolkit
 <<No stacktrace available>>
Caused by: java.lang.ClassNotFoundException: 
gnu.java.awt.peer.gtk.GtkToolkit not found in [file:./, core:/]
 <<No stacktrace available>>
john$ export CLASSPATH=/usr/local/gcc_cvs/share/java/libgcj-3.5.0.jar
john$ ./bar
false
true
{i.e. it starts up and runs as it should.}
---J