[Buildroot] [Bug 8256] pointing to /usr/bin/objcopy old version (x86) instead of the generated one

[bugzilla at busybox.net]

https://bugs.busybox.net/show_bug.cgi?id=8256

--- Comment #9 from CB <christophebricout at yahoo.fr> 2015-08-25 08:53:03 UTC ---
Thanks for your feedback.

I will execute the buildroot as requested and provide you with the config log.

In parallel, I launched buildroot using Virtual Box and CENTOS 7.
Buildroot is correcty working as the host 'objcopy' utility is using 
a compatible version allowing x86_64 binary.
It seem confirm your guess concerning 'objcopy' version differs between Host
and Target. This is my case under RedHat Linux 5 (eq Centos 5). This issue
doesn't exist under Centos 7. 


Thanks again.


(In reply to comment #8)
> (In reply to comment #2)
> 
> > Before launcing gmake, I have  now executed the following command
> > 
> > setenv PATH
> > "/home/elinux/localinstall/buildroot-2015.05/install/buildroot-2015.05/output/host/usr/x86_64-buildroot-linux-uclibc/bin:/home/elinux/localinstall/buildroot-2015.05/install/buildroot-2015.05/output/host/usr/bin:${PATH}"
> > set PATH = "/home/elinux/localinstall/buildroot-2015.05/install/buildroot-2015.05/output/host/usr/x86_64-buildroot-linux-uclibc/bin:/home/elinux/localinstall/buildroot-2015.05/install/buildroot-2015.05/output/host/usr/bin:${PATH}"
> 
> I don't know why you think it's a good idea to add the target binaries to your
> PATH. Don't do that.
> 
> The config.log of attachment 6136 [details] is useless. Could you re-run a clean build
> without hacking PATH, and then attach the full
> output/build/grub2-2.00/config.log please?
> 
> My conjecture is that grub2 is using the wrong objcopy somewhere in configure.
> Oh, indeed, now I see: we use HOST_CONFIGURE_OPTS, so it will have
> OBJCOPY=/usr/bin/objcopy explicitly. I guess we should override that with
> OBJCOPY=$(TARGET_OBJCOPY), but I'm not sure how that will affect other
> host,target combinations...

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