[ELDK] Ubuntu 12.04 and ELDK 4.1

[Franz Fuchshuber]

Dear Wolfgang,

thank you for your quick reply.
I just want to ensure that there is no simple workaround for this 
problem before I go on.

I think, the appropriate action to keep our toolchain is to set up a 
build server with an older OS.

Best regards,

Franz

Am 04.05.2012 20:14, schrieb Wolfgang Denk:
> Dear Franz,
>
> In message<4FA3E19E.7070704 at gmx.net>  you wrote:
>> Unfortunatelly eldk 4.1 doesn't work with ubuntu 12.04.
>> I cannot compile even a simple "hello world". On ubuntu 11.10 the same
>> eldk installation just works fine.
> Are you absolutely sure this is an issue with Ubuntu 12.04, and not
> eventually just one with your system setup?
>
>> My compilation call is:
>>   >>$  arm-linux-gcc hello_world.c
> Did you set and export CROSS_COMPILE before?
>
>> and i get this error message:
>>
>>   >>hello_world.c:1:19: error: stdio.h: No such file or directory
>>   >>hello_world.c: In function 'main':
>>   >>hello_world.c:5: warning: incompatible implicit declaration of
>> built-in function 'printf'
> This is an installation error on your system. It appears you missed to
> install (or copy) the header files.  For me this works:
>
> $ cat /etc/issue
> Ubuntu 12.04 LTS \n \l
>
> $ arm-linux-gcc -v
> Reading specs from
> /opt/eldk-4.1/usr/bin/../lib/gcc/arm-linux/4.0.0/specs
> Target: arm-linux
> Configured with:
> /opt/eldk/build/arm-2007-01-21/work/usr/src/denx/BUILD/crosstool-0.35/build/gcc-4.0.0-glibc-2.3.5-eldk/arm-linux/gcc-4.0.0/configure
> --target=arm-linux --host=i686-host_pc-linux-gnu
> --prefix=/var/tmp/eldk.bMi2nK/usr/crosstool/gcc-4.0.0-glibc-2.3.5-eldk/arm-linux
> --with-headers=/var/tmp/eldk.bMi2nK/usr/crosstool/gcc-4.0.0-glibc-2.3.5-eldk/arm-linux/arm-linux/include
> --with-local-prefix=/var/tmp/eldk.bMi2nK/usr/crosstool/gcc-4.0.0-glibc-2.3.5-eldk/arm-linux/arm-linux
> --disable-nls --enable-threads=posix --enable-symvers=gnu
> --enable-languages=c,c++ --enable-shared --enable-c99
> --enable-long-long --enable-__cxa_atexit
> Thread model: posix
> gcc version 4.0.0 (DENX ELDK 4.1 4.0.0)
> $ cat hello.c
> #include<stdio.h>
> int main (void)
> {
>          printf("Hello world\n");
>          return 0;
> }
> $ arm-linux-gcc -c hello.c
> $ ls -l hello*
> -rw-rw-r-- 1 wd wd  76 May  4 19:46 hello.c
> -rw-rw-r-- 1 wd wd 828 May  4 20:00 hello.o
>
> OK, the linker will run into problems then, but this is something
> else.
>
>> My colleague assumes that there are incompatibilities with newer C
>> libraries on the ubuntu 12.04 host.
> You mean like this?
>
> $ arm-linux-gcc -o hello  hello.o
> /opt/eldk-4.1/usr/bin/../lib/gcc/arm-linux/4.0.0/../../../../arm-linux/bin/ld: warning: ld-linux.so.2, needed by /opt/eldk-4.1/usr/../arm/lib/libc.so.6, not found (try using -rpath or -rpath-link)
> ...
>
> Well, it seems there are indeed incompatibilities. But this is to be
> expected after such a long time - I'm surprised it worked that long.
>
> Sorry, but we cannot maintain this old stuff forever, for free.
> If you really need it then please feel free to contact me for
> commercial support options.
>
>> When there is a workaround could you just tell me.
> The big question to me is why you are trying to run 5 year old
> software on the most recent version of Ubuntu?  This makes little
> sense.  Either you need good old ELDK 4.1 as a stable production
> environment for older products; in this case you should keep the old
> OS environment as well.  Or you try to set up a new build system, in
> which case you should be using ELDK 5.1 (or, in 2..3 days) ELDK 5.2.
>
>
> Best regards,
>
> Wolfgang Denk
>