Fixes <https://bugs.gnu.org/36215>.
Reported by Björn Höfling <bjoern.hoefling@bjoernhoefling.de>.
This is a followup to
9c941364bfc0120e3ab5c5c4cc71a9a302d59a2b.
* gnu/system/vm.scm (system-docker-image)[build]: Set GUIX_LOCPATH and
call 'setlocale'.
;; Set the SQL schema location.
(sql-schema #$schema)
+ ;; Allow non-ASCII file names--e.g., 'nss-certs'--to be decoded.
+ (setenv "GUIX_LOCPATH"
+ #+(file-append glibc-utf8-locales "/lib/locale"))
+ (setlocale LC_ALL "en_US.utf8")
+
(let* (;; This initializer requires elevated privileges that are
;; not normally available in the build environment (e.g.,
;; it needs to create device nodes). In order to obtain