Re : problem using gcj compiler

[charfi asma <charfiasma at yahoo dot fr>]

thank you for your help.

I reinstalled all required package for gcj (I tapped rpmdrake and I update all gcj packages : libgcj-devel, libgcj-static-devel, libgcj9, libgcj9-base, and libgcj9-src)
but I still have the same error.
note that when I compile without link (-S) it works. it generates Hello.s

Asma




----- Message d'origine ----
De : Andrew Haley <aph@redhat.com>
À : charfi asma <charfiasma@yahoo.fr>
Cc : gcc-help@gcc.gnu.org
Envoyé le : Mardi, 16 Juin 2009, 17h33mn 14s
Objet : Re: problem using gcj compiler

charfi asma wrote:

> I try to compile a java file using gcj.
> I have already gcj installed . it is a known command:
> 
> [charfi@is010178 hello_JAVA]$ whereis gcj
> gcj: /usr/bin/gcj /usr/lib/gcj
> [charfi@is010178 hello_JAVA]$ which gcj
> /usr/bin/gcj
> [charfi@is010178 hello_JAVA]$ gcj -v
> Utilisation des specs internes.
> Lecture des spécification à partir de /usr/lib/gcc/i586-manbo-linux-gnu/4.3.2/libgcj.spec
> renommé les specs startfile à startfileorig
> renommé les specs lib à liborig
> Target: i586-manbo-linux-gnu
> Configuré avec: ../configure --prefix=/usr --libexecdir=/usr/lib --with-slibdir=/lib --mandir=/usr/share/man --infodir=/usr/share/info --enable-checking=release --enable-languages=c,c++,ada,fortran,objc,obj-c++,java --build=i586-manbo-linux-gnu --host=i586-manbo-linux-gnu --with-cpu=generic --with-system-zlib --enable-threads=posix --enable-shared --enable-long-long --enable-__cxa_atexit --disable-libunwind-exceptions --enable-clocale=gnu --enable-java-awt=gtk --with-java-home=/usr/lib/jvm/java-1.5.0-gcj-1.5.0.0/jre --with-ecj-jar=/usr/share/java/eclipse-ecj.jar --enable-gtk-cairo --disable-libjava-multilib --enable-ssp --disable-libssp --disable-werror
> Modèle de thread: posix
> gcc version 4.3.2 (GCC) 
> [charfi@is010178 hello_JAVA]$ 
> 
>  When I try to compile Hello.java it generate this error
> 
> [charfi@is010178 hello_JAVA]$ gcj --main=Hello  Hello.java
> /tmp/charfi/cccglZ0U.o: In function `main':
> ccLttvRH.i:(.text+0x2b): undefined reference to `Hello::class$'
> collect2: ld a retourné 1 code d'état d'exécution
> 
> I think it is related to the libgcj but I don't know how to install it (I found in the net that I should install it when I install my gcc by modifiying configure.in
> but I have no configure file.
> 
> I update my gcc but I still have the same problem.

The gcj library is probably a separate package that you have not installed.
You need to use your operating system's package installer.

Andrew.