On Wed, Nov 3, 2010 at 8:32 PM, Kfir Lavi <lavi.kfir@gmail.com> wrote:

On Wed, Nov 3, 2010 at 7:50 PM, Kfir Lavi <lavi.kfir@gmail.com> wrote:

On Wed, Nov 3, 2010 at 12:33 PM, Kfir Lavi <lavi.kfir@gmail.com> wrote:

On Tue, Nov 2, 2010 at 2:49 PM, Manuel Lauss <manuel.lauss@googlemail.com> wrote:

On Sun, Oct 31, 2010 at 9:08 AM, Kfir Lavi <lavi.kfir@gmail.com> wrote:
> Hi,
> I have a cross compilation environment inside a chroot.
> I run:
> i686-unknown-linux-gnu-emerge dev-libs/ace
> ...
> checking for i686-unknown-linux-gnu-g++... i686-unknown-linux-gnu-g++
> checking for C++ compiler default output file name... configure:
> error: C++ compiler cannot create executables

Have a look at config.log.  It tells exactly what went wrong, including gcc
error output.

Manuel

It seems that one of the steps that I do, is deleting the tools. I need then to install again from package from the mother system (I'm running here as chroot, and its very good that I did so).
So I install gcc and binutils, then compile them again in the chroot environment.
Using i686-unknown-linux-gnu-emerge and everything happens again.
I didn't find the culprit yet.

Kfir

 

It seems that installing dev-libs/ace is causing the problem.
emerge dev-libs/ace [works]
i686-gentoo-linux-gnu-g++ [works]
i686-gentoo-linux-gnu-gcc [works]
gcc [works]
g++ [works]
i686-gentoo-linux-gnu-emerge  dev-libs/ace [DONT WORK]

Other packages emerging ok with i686-gentoo-linux-gnu-emerge.
Can someone give me a hint? or something to check?

Thanks,
Kfir

Some diagnostics:
$ cd /usr/__CHOST__/tmp/portage/dev-libs/ace-5.7.2/work/ACE_wrappers/build
$ ../configure
checking build system type... i686-pc-linux-gnu
checking host system type... i686-pc-linux-gnu
checking target system type... i686-pc-linux-gnu
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking for egrep... grep -E
checking whether #! works in shell scripts... yes
checking for g++... g++
checking for C++ compiler default output file name... a.out
checking whether the C++ compiler works... yes
checking whether we are cross compiling... no
checking for suffix of executables...
checking for suffix of object files... o
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking for style of include used by make... GNU
checking dependency style of g++... gcc3
checking how to run the C++ preprocessor... g++ -E

Here we see that configure passes the test it failed with emerge.
One line did grab my attention: checking whether we are cross compiling... no

Maybe the environment that i686-gentoo-linux-gnu-emerge creates is not working for ACE.

What do you think?

Regards,
Kfir

I did again a cross compilation, really the same way I did before, but with a different name.
crossdev -P -vt i686-gentoo1-linux-gnu
But without the -S, so it compiled all the latest and greatest.

Now the problem is solved, but still ACE will stuck on another line:
checking for epoll_create... configure: error: cannot run test program while cross compiling
See `config.log' for more details.

But this is for different thread.

Regards,
Kfir