diff --git a/dbus/dbus-sysdeps-unix.c b/dbus/dbus-sysdeps-unix.c
index e511afc5..06cea5a0 100644
--- a/dbus/dbus-sysdeps-unix.c
+++ b/dbus/dbus-sysdeps-unix.c
@@ -4471,7 +4471,7 @@ _dbus_close_all (void)
 {
   int maxfds, i;
 
-#ifdef __linux__
+#if defined(__linux__) && defined(__GLIBC__)
   DIR *d;
 
   /* On Linux we can optimize this a bit if /proc is available. If it