Hi Marius,

On Tue,  6 Mar 2018 17:56:41 +0100
Marius Bakke <mbakke@fastmail.com> wrote:

> index e63abcea4..dffe2c49c 100644
> --- a/gnu/packages/linux.scm
> +++ b/gnu/packages/linux.scm
> @@ -608,10 +608,16 @@ providing the system administrator with some help in common tasks.")
>                         (mkdir-p (string-append static "/lib"))
>                         (with-directory-excursion out
>                           (for-each (lambda (file)
> +                                     ;; The dynamic linker does not need the '.la'
> +                                     ;; files, but libtool might.  Make sure they
> +                                     ;; refer to the right output.
> +                                     (when (string= ".la" (string-take-right file 3))

string-take-right errors out when given an argument which is longer than the length of FILE.

I suggest using (string-suffix? ".la" file) instead.