Hello,

Ricardo Wurmus <rekado@elephly.net> skribis:

>> *guix build --target=arm-linux-gnueabihf* *perl* fails with the following
>> output: https://pastebin.com/QF0xKAmR
>
> Here’s the output copied from pastebin:
>
> starting phase `remove-extra-references'

[...]

>            1 (string-append "incpth='" #f "/include'\n")
> In ice-9/boot-9.scm:
>    752:25  0 (dispatch-exception _ _ _)
>
> ice-9/boot-9.scm:752:25: In procedure dispatch-exception:
> In procedure string-append: Wrong type (expecting string): #f
> builder for `/gnu/store/zj5xld149ibdyc4nlm2dj41jnjm9bqyn-perl-5.28.0.drv' failed with exit code 1
> build of /gnu/store/zj5xld149ibdyc4nlm2dj41jnjm9bqyn-perl-5.28.0.drv failed
>
> I have never tried to cross-compiled packages for “arm-linux-gnueabihf”.
> I don’t know if this is expected to work.

The “arm-linux-gnueabihf” is a cross-compilation triplet that we
generally support.  However, note, Gérard, that not all packages in Guix
can be successfully cross-compiled, and Perl is one that fails to cross
build.  We are not committed to supporting cross-compilation of every
package, but we’re of course happy to make the feature more useful.

The patch below is the beginning of a fix, but as it is, it builds a
native Perl.  To address that, we need to fiddle with Perl’s peculiar
build system.  If you know how to instruct it to cross-build, let’s
address this!  :-)

Thanks,
Ludo’.

PS: This issue was previously reported at
    <https://issues.guix.info/issue/27149> so I suggest we keep
    discussing it there.