Re: gcj: error trying to exec 'ecj1': execvp

[David Michel <dmichel76 at googlemail dot com>]

But I did put use the options:
$ ./configure --enable-languages=java
--prefix=/local/gcc-4_4-branch/install --enable-java-home
--enable-java-awt=gtk

although I didn't put --with-x

Is that the problem ?

cheers

David




2009/4/22 Andrew Haley <aph@redhat.com>
>
> David Michel wrote:
> > Thanks it compiles fine now, but now I get an Exception at runtime:
> >
> > Exception in thread "main" java.awt.AWTError: Cannot load AWT toolkit:
> > ? ?at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:607)
> > ? ?at java.awt.GraphicsEnvironment.getLocalGraphicsEnvironment(GraphicsEnvironment.java:103)
> > ? ?at java.awt.Window.<init>(Window.java:133)
> > ? ?at java.awt.Frame.<init>(Frame.java:246)
> > ? ?at javax.swing.JFrame.<init>(JFrame.java:114)
> > ? ?at nl.kbna.dioscuri.GUI.<init>(dioscuri)
> > ? ?at nl.kbna.dioscuri.GUI.<init>(dioscuri)
> > ? ?at nl.kbna.dioscuri.GUI.main(dioscuri)
> > Caused by: java.lang.ClassNotFoundException:
> > ? ?at java.lang.Class.forName(natClass.cc:101)
> > ? ?at java.awt.Toolkit.getDefaultToolkit(Toolkit.java:583)
> > ? ?...7 more
> >
> > I simply run this for all the java source code to produce the object files:
> > /local/gcc-4_4-branch/install/bin/gcj -O0 -g0 -c "--classpath=./:"
> > foo.java -o foo.o
> >
> > and then, link them together with:
> > /local/gcc-4_4-branch/install/bin/gcj -O0 -g0 --main=GUI foo1.o
> > foo2.o..... -o ./a.out
> >
> > Obviously, it seems that it cannot find AWT, but I don't know why and
> > how to solve this.
>
> http://gcc.gnu.org/install/configure.html
>
> AWT-Specific Options
>
> --with-x
> ? ?Use the X Window System.
>
> --enable-java-awt=PEER(S)
>
> ? ?Specifies the AWT peer library or libraries to build alongside
> ? ?`libgcj'. If this option is unspecified or disabled, AWT will be
> ? ?non-functional. Current valid values are gtk and xlib. Multiple
> ? ?libraries should be separated by a comma
> ? ?(i.e. --enable-java-awt=gtk,xlib).
>
> I'd use gtk.
>
> Andrew.