bug#18068: LINUX_MODULE_DIRECTORY needs trailing slash

[Mark H Weaver]

'module-init-tools' (with our patch) assumes that LINUX_MODULE_DIRECTORY
ends with a trailing slash.  However, 'udev-service' sets
LINUX_MODULE_DIRECTORY to "/run/booted-system/kernel/lib/modules".

One option would be to add a trailing slash:

--8<---------------cut here---------------start------------->8---
--- a/gnu/services/base.scm
+++ b/gnu/services/base.scm
@@ -488,7 +488,7 @@ passed to @command{guix-daemon}."
 
                         ;; Allow udev to find the modules.
                         (setenv "LINUX_MODULE_DIRECTORY"
-                                "/run/booted-system/kernel/lib/modules")
+                                "/run/booted-system/kernel/lib/modules/")
 
                         (let ((pid (primitive-fork)))
                           (case pid
--8<---------------cut here---------------end--------------->8---

Another option would be to change module-init-tools-moduledir.patch to
cope with the lack of a trailing slash.

Thoughts?

    Thanks,
      Mark