Bug#316499: libgcj6-common: gcj-4.0 requires libgcj6-dev

[August Mayer <amayer@cosy.sbg.ac.at>]

Am Freitag, den 01.07.2005, 13:46 +0200 schrieb Matthias Klose:

> August Mayer writes:
> > If libgcj4-dev is installed, the program compiles, but then crashes when
> > trying to execute the program.
>
> byte-compiling (-C) works without the -dev package.
>  

But compilation to native (without -C) produces faulty executables, and 
the error message is very strange and non-informative (just segfaults in 
the bytecode verifier)

> > The same is true for gcj-3.3 also, conversely. If libgcj6-dev is installed,
> > programs compiled with gcj-3.3 will crash too. I believe this is because
> > the program links against the wrong version of /usr/lib/libgcj.so .
>
> please be more specific, i.e. send a sequence of commands, and/or
> example files. compiling works for me.
>  

(Note: Only relevant output is shown; also, packages are taken from 
unstable, version 4.0.0-11. Note also how gcj-4.0 links against 
libgcj.so.4 when libgcj4-dev is installed, and conversely how gcj-3.3 
links against libgcj.so.6 when libgcj6-dev is installed.)

$ apt-get install gcj-4.0

$ apt-get install gcj
< Installs gcj-3.3 etc. >

$ cat HalloWelt.java

public
class HalloWelt
{

 public static
 void main(String[] args)
 {
   System.out.println("Hallo Welt!");
 }
}

$ gcj --main=HalloWelt HalloWelt.java -o HalloWelt
gcj: libgcj.spec: Datei oder Verzeichnis nicht gefunden

$ gcj-4.0 --main=HalloWelt HalloWelt.java -o HalloWelt
gcj-4.0: libgcj.spec: Datei oder Verzeichnis nicht gefunden

$ apt-get install libgcj-dev
< installs libgcj-dev, libgcj4-dev, libgcj4-awt >

$ gcj --main=HalloWelt HalloWelt.java -o HalloWelt

$ ./HalloWelt
Hallo Welt!

$ gcj-4.0 --main=HalloWelt HalloWelt.java -o HalloWelt

$ ./HalloWelt
?

$ ldd HalloWelt
       linux-gate.so.1 =>  (0xffffe000)
       libgcc_s.so.1 => /lib/libgcc_s.so.1 (0xb7fcc000)
       libgcj.so.4 => /usr/lib/libgcj.so.4 (0xb77fd000)
       libm.so.6 => /lib/tls/libm.so.6 (0xb77da000)
       libpthread.so.0 => /lib/tls/libpthread.so.0 (0xb77c9000)
       libz.so.1 => /usr/lib/libz.so.1 (0xb77b7000)
       libdl.so.2 => /lib/tls/libdl.so.2 (0xb77b4000)
       libc.so.6 => /lib/tls/libc.so.6 (0xb7699000)
       /lib/ld-linux.so.2 (0xb7fea000)

$ apt-get install libgcj6-dev
< Package version 4.0.0-11 correctly removes libgcj4-dev >

$ gcj-4.0 --main=HalloWelt HalloWelt.java -o HalloWelt

$ ./HalloWelt
Hallo Welt!

$ gcj --main=HalloWelt HalloWelt.java -o HalloWelt

$ ./HalloWelt
Aborted

$ ldd HalloWelt
       linux-gate.so.1 =>  (0xffffe000)
       libgcc_s.so.1 => /lib/libgcc_s.so.1 (0xb7fcc000)
       libgcj.so.6 => /usr/lib/libgcj.so.6 (0xb6f01000)
       libm.so.6 => /lib/tls/libm.so.6 (0xb6ede000)
       libpthread.so.0 => /lib/tls/libpthread.so.0 (0xb6ecd000)
       libz.so.1 => /usr/lib/libz.so.1 (0xb6ebb000)
       libdl.so.2 => /lib/tls/libdl.so.2 (0xb6eb8000)
       libc.so.6 => /lib/tls/libc.so.6 (0xb6d9d000)
       /lib/ld-linux.so.2 (0xb7fea000)


--
August Mayer, M.Sc  -  http://purl.org/net/amayer/
Student of Applied Computer Science, University of Salzburg