rust-lang
diff --git a/‎src/test/run-make-fulldeps/target-without-atomic-cas/Makefile
+5 b/‎src/test/run-make-fulldeps/target-without-atomic-cas/Makefile
+5
diff --git a/‎src/test/run-make-fulldeps/target-without-atomics/Makefile
-5 b/‎src/test/run-make-fulldeps/target-without-atomics/Makefile
-5
@@ -0,0 +1,5 @@
+-include ../tools.mk
+
+# The target used below doesn't support atomic CAS operations. Verify that's the case
+all:
+	$(RUSTC) --print cfg --target thumbv6m-none-eabi | $(CGREP) -v 'target_has_atomic="cas"'