gnu: Make 'mount' interface in static Guile consistent with Guix API.

Rather than expecting a pointer, the version of 'mount' in
guile-static-stripped now takes a string for the 'options' argument, just like
the 'mount' procedure in (guix build syscalls).

* gnu/packages/patches/guile-linux-syscalls.patch (mount): Expect a string or
  #f for 'options' argument.
* gnu/build/file-systems.scm (mount-file-system): Use new 'mount' interface.

1 files changed, 3 insertions, 6 deletions

diff --git a/gnu/build/file-systems.scm b/gnu/build/file-systems.scm
index dc99d60d3d..72c8bd59f3 100644
--- a/gnu/build/file-systems.scm
+++ b/gnu/build/file-systems.scm
@@ -286,16 +286,13 @@ run a file system check."
        (when check?
          (check-file-system source type))
        (mkdir-p mount-point)
-       (mount source mount-point type flags
-              (if options
-                  (string->pointer options)
-                  %null-pointer))
+       (mount source mount-point type flags options)
 
        ;; For read-only bind mounts, an extra remount is needed, as per
        ;; <http://lwn.net/Articles/281157/>, which still applies to Linux 4.0.
        (when (and (= MS_BIND (logand flags MS_BIND))
                   (= MS_RDONLY (logand flags MS_RDONLY)))
-         (mount source mount-point type (logior MS_BIND MS_REMOUNT MS_RDONLY)
-                %null-pointer))))))
+         (let ((flags (logior MS_BIND MS_REMOUNT MS_RDONLY)))
+           (mount source mount-point type flags #f)))))))
 
 ;;; file-systems.scm ends here