Cross compilation question

Cross compilation question

[Toni Van Remortel]

Hi all,

I've installed ELDK as compiler-set, and it is successfully used to
compile linuxppc_2_4_devel, rtai and FLTK for my EP405 board.

Now I have a FLTK-based program which I like to cross-compile, but I get
stuck to one error I cannot solve right now:

ppc_4xx-g++ -static -g test.cxx -I/ppc/fltk-1.1.4rc2 -o test
-L/opt/eldk/ppc_4xx/lib -L/opt/eldk/ppc_4xx/usr/lib
-L/ppc/fltk-1.1.4rc2/lib -L/opt/PPC_X/usr/X11R6/lib -L/opt/PPC_X/usr/lib
-lfltk -lXext -lX11
/opt/eldk/usr/ppc-linux/bin/ld: cannot find -lstdc++
collect2: ld returned 1 exit status

As far as I know, is libstdc++.so in /opt/eldk/ppc_4xx/usr/lib, which is
added as -L.

Anyone who know the solution (which will probably be easy).

Regards.
--
                           Toni Van Remortel
              Wetenschappelijk Medewerker - D-science lab
              Tel: +32 3 205 61 72 - Fax: +32 3 205 61 95
                      E-mail: t.vanremortel@ha.be

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Re: Cross compilation question

[Wolfgang Denk]

In message <1063093493.12979.4.camel@toni> you wrote:
>
> Hi all,
>
> I've installed ELDK as compiler-set, and it is successfully used to
> compile linuxppc_2_4_devel, rtai and FLTK for my EP405 board.
>
> Now I have a FLTK-based program which I like to cross-compile, but I get
> stuck to one error I cannot solve right now:
>
> ppc_4xx-g++ -static -g test.cxx -I/ppc/fltk-1.1.4rc2 -o test
> -L/opt/eldk/ppc_4xx/lib -L/opt/eldk/ppc_4xx/usr/lib
> -L/ppc/fltk-1.1.4rc2/lib -L/opt/PPC_X/usr/X11R6/lib -L/opt/PPC_X/usr/lib
> -lfltk -lXext -lX11
> /opt/eldk/usr/ppc-linux/bin/ld: cannot find -lstdc++
> collect2: ld returned 1 exit status
>
> As far as I know, is libstdc++.so in /opt/eldk/ppc_4xx/usr/lib, which is
> added as -L.
>
> Anyone who know the solution (which will probably be easy).

First, your list of "-L" options makes little sense to me.  There  is
no need to add /opt/eldk/ppc_4xx/lib or -L/opt/eldk/ppc_4xx/usr/lib.

Second: did you try what happens when you omit the "-static" argument?


If you really must link with "-static", try something like this:

GCCLIBDIR=/opt/eldk/ppc_4xx/usr/lib/gcc-lib/ppc-linux/2.95.4
${CROSS_COMPILE}g++ -static -L${GCCLIBDIR} ...

Best regards,

Wolfgang Denk

--
Software Engineering:  Embedded and Realtime Systems,  Embedded Linux
Phone: (+49)-8142-4596-87  Fax: (+49)-8142-4596-88  Email: wd@denx.de
No journaling file system can recover your data if the disk dies.
                                 - Steve Rago in <D4Cw1p.L9E@plc.com>

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Re: Cross compilation question

[Dan Kegel]

Toni Van Remortel wrote:
> Hi all,
>
> I've installed ELDK as compiler-set, and it is successfully used to
> compile linuxppc_2_4_devel, rtai and FLTK for my EP405 board.
>
> Now I have a FLTK-based program which I like to cross-compile, but I get
> stuck to one error I cannot solve right now:
>
> ppc_4xx-g++ -static -g test.cxx -I/ppc/fltk-1.1.4rc2 -o test
> -L/opt/eldk/ppc_4xx/lib -L/opt/eldk/ppc_4xx/usr/lib
> -L/ppc/fltk-1.1.4rc2/lib -L/opt/PPC_X/usr/X11R6/lib -L/opt/PPC_X/usr/lib
> -lfltk -lXext -lX11
> /opt/eldk/usr/ppc-linux/bin/ld: cannot find -lstdc++
> collect2: ld returned 1 exit status
>
> As far as I know, is libstdc++.so in /opt/eldk/ppc_4xx/usr/lib, which is
> added as -L.

Do you have a libstdc++.a?  You'd need that to satisfy the -static.
- Dan


--
Dan Kegel
http://www.kegel.com
http://counter.li.org/cgi-bin/runscript/display-person.cgi?user=78045


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Re: Cross compilation question

[Toni Van Remortel]

Op di 09-09-2003, om 18:18 schreef Wolfgang Denk:
> In message <1063093493.12979.4.camel@toni> you wrote:
> >
> > I've installed ELDK as compiler-set, and it is successfully used to
> > compile linuxppc_2_4_devel, rtai and FLTK for my EP405 board.
> >
> > Now I have a FLTK-based program which I like to cross-compile, but I
> > get stuck to one error I cannot solve right now:
> >
> > ppc_4xx-g++ -static -g test.cxx -I/ppc/fltk-1.1.4rc2 -o test
> > -L/opt/eldk/ppc_4xx/lib -L/opt/eldk/ppc_4xx/usr/lib
> > -L/ppc/fltk-1.1.4rc2/lib -L/opt/PPC_X/usr/X11R6/lib -L/opt/PPC_X/usr/lib
> > -lfltk -lXext -lX11
> > /opt/eldk/usr/ppc-linux/bin/ld: cannot find -lstdc++
> > collect2: ld returned 1 exit status
> >
> > As far as I know, is libstdc++.so in /opt/eldk/ppc_4xx/usr/lib,
> > which is added as -L.
> >
> > Anyone who know the solution (which will probably be easy).
>
> First, your list of "-L" options makes little sense to me. There is no
> need to add /opt/eldk/ppc_4xx/lib or -L/opt/eldk/ppc_4xx/usr/lib.
>
> Second: did you try what happens when you omit the "-static" argument?
>
> If you really must link with "-static", try something like this:
>
> GCCLIBDIR=/opt/eldk/ppc_4xx/usr/lib/gcc-lib/ppc-linux/2.95.4
> ${CROSS_COMPILE}g++ -static -L${GCCLIBDIR} ...

I removed the eldk-lib stuff, and added the GCCLIBDIR.
Now, it compiles, but doesn't link. A lot of 'undefined reference to'
which I don't understand (they all are about FLTK though).

Thank you for your help already.

PS: I need the -static, but without it, it gives me some more undefined
references to the X-libs.
--
                           Toni Van Remortel
              Wetenschappelijk Medewerker - D-science lab
              Tel: +32 3 205 61 72 - Fax: +32 3 205 61 95
                      E-mail: t.vanremortel@ha.be

** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/