1 files changed, 3 insertions, 1 deletions

diff --git a/util-linux/umount.c b/util-linux/umount.c
index 6de71b4ab..dd072e7f6 100644
--- a/util-linux/umount.c
+++ b/util-linux/umount.c
@@ -116,7 +116,9 @@ extern int umount_main(int argc, char **argv)
                         del_loop(m->device);
 
                 if(curstat) {
-                        if(useMtab && m) erase_mtab(m->dir);
+                        /* Yes, the ENABLE is redundant here, but the optimizer for ARM
+                         * can't do simple constant propogation in local variables... */
+                        if(ENABLE_FEATURE_MTAB_SUPPORT && useMtab && m) erase_mtab(m->dir);
                         status = EXIT_FAILURE;
                         bb_perror_msg("Couldn't umount %s\n", path);
                 }