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Re: [Xen-users] Error compiling Xen in configuring stubdom/gmp with glibc-2.23 on Arch Linux

On Mon, Mar 07, 2016 at 10:38:47AM +1000, John Thomson wrote:
> Hi,
> I am encountering an error compiling Xen (4.6.1) in configuring
> stubdom/gmp on x86_64 Arch Linux.
> I think it may be due to the system's glibc-2.23. System gcc is 5.3.0.
> Compiling was working fine before these system packages were updated.
> Other packages were updated at the same time, so I am not sure which to
> blame.
> Error:
> checking size of unsigned short... configure: error: cannot compute
> sizeof (unsigned short)
> See `config.log' for more details.
> Makefile:170: recipe for target 'gmp-x86_64' failed
> make[1]: *** [gmp-x86_64] Error 77
> Analysing the error in the configure test program, ferror after fprintf
> always returns 1.
> The program still appears to function as intended, and outputs the
> unsigned short size to conftest.val.
> Appending a clearerr(f) after the fprintf (f, ...) calls appears to
> workaround.
> When compiling the test program using system includes and libraries,
> ferror returns 0.
> My guess is that this may be due to using newlib cross-root includes and
> the system’s glibc libraries.

This looks like a bug to me. Stubdom shouldn't be using host system's

> I have not yet worked out how to resolve this. I have not been able to
> work out how to use -nostdlib and the cross-root libraries. I get errors
> for undefined functions.
> Could I get some help resolving this, or where can I go from here?

If stubdom is not absolutely required in your environment, I suggest you
disable it.


> The source for the configure test program and the gcc command configure
> used to compile should be here:
> https://gitlab.com/johnth/aur-xen/issues/1
> NixOS also appears to have run into this error:
> https://github.com/NixOS/nixpkgs/issues/13590
> Thank you,
> --
>   John Thomson
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxx
> http://lists.xen.org/xen-users

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