libglnx: Update to latest

This pulls in a new compilation flag for wrpseudo compatibility.  Also
note we need to add some includes since glnx-libcontainer went away,
and with it some includes for `sys/mount.h` etc.

Closes: #522
Approved by: cgwalters

configure.ac

@@ -335,6 +335,7 @@ echo "
     libarchive (parse tar files directly):        $with_libarchive
     static deltas:                                yes (always enabled now)
     O_TMPFILE:                                    $enable_otmpfile
+    wrpseudo-compat:                              $enable_wrpseudo_compat
     man pages (xsltproc):                         $enable_man
     api docs (gtk-doc):                           $enable_gtk_doc
     gjs-based tests:                              $have_gjs

libglnx

@@ -1 +1 @@
-Subproject commit 4ae5e3beaaa674abfabf7404ab6fafcc4ec547db
+Subproject commit 36396b49ad6636c9959f3dfac5e04d41584b1a92

src/libostree/ostree-sysroot.c

@@ -21,6 +21,8 @@
 #include "config.h"
 
 #include "otutil.h"
+#include <sys/mount.h>
+#include <sys/wait.h>
 
 #include "ostree-core-private.h"
 #include "ostree-sysroot-private.h"