diff --git a/configure.ac b/configure.ac
line changes: +3/-0
index 71575e4..d5f668d
--- a/configure.ac
+++ b/configure.ac

@@ -58,6 +58,9 @@ AS_IF([test $cross_compiling = no], [
   HELP2MAN=:
 ])
 
+dnl Ensure VLAs are not used.
+AC_DEFINE([GNULIB_NO_VLA], [1], [Define to 1 to disable use of VLAs])
+
 dnl i18n support from GNU gettext.
 AM_GNU_GETTEXT_VERSION([0.18.1])
 AM_GNU_GETTEXT([external])

diff --git a/gnulib b/gnulib
line changes: +1/-1
index 34290cb..5ddb2f9
--- a/gnulib
+++ b/gnulib

@@ -1 +1 @@
-Subproject commit 34290cb926e655971d17d35b8fd238ebe1b57da9
+Subproject commit 5ddb2f9d460a85a56f1c47c57c48395ccdc4ea12