diff --git a/sim/common/ChangeLog b/sim/common/ChangeLog
index 8039a78e32..33afbfba46 100644
--- a/sim/common/ChangeLog
+++ b/sim/common/ChangeLog
@@ -1,3 +1,7 @@
+2021-01-11  Mike Frysinger  <vapier@gentoo.org>
+
+	* acinclude.m4 (SIM_AC_OUTPUT): Require SIM_AC_OPTION_WARNINGS.
+
 2021-01-11  Mike Frysinger  <vapier@gentoo.org>
 
 	* sim-core.c (sim_memory_map): Change %#x to PRIxTW.
diff --git a/sim/common/acinclude.m4 b/sim/common/acinclude.m4
index 45ec134d6d..149ddc79fa 100644
--- a/sim/common/acinclude.m4
+++ b/sim/common/acinclude.m4
@@ -821,7 +821,9 @@ dnl one afterwards.  The two pieces of the common fragment are inserted into
 dnl the target's fragment at the appropriate points.
 
 AC_DEFUN([SIM_AC_OUTPUT],
-[
+[dnl
+AC_REQUIRE([SIM_AC_OPTION_WARNINGS])dnl
+
 dnl Make @cgen_breaks@ non-null only if the sim uses CGEN.
 cgen_breaks=""
 if grep CGEN_MAINT $srcdir/Makefile.in >/dev/null; then