Just for convenience, particularly 'make clean'.
Change-Id: Ic9964ace7fb4c675e84b3b9343fc8239abca44ac
+generated_templates =                \
+        overcloud.yaml               \
+        undercloud-vm.yaml           \
+        undercloud-bm.yaml           \
+        undercloud-vm-tuskar.yaml    \
+        undercloud-vm-ironic.yaml
+
 # Files included in overcloud-source.yaml via FileInclude
 overcloud_source_deps = nova-compute-instance.yaml
 
+all: $(generated_templates)
+
 overcloud.yaml: overcloud-source.yaml swift-source.yaml $(overcloud_source_deps)
        python ./tripleo_heat_merge/merge.py overcloud-source.yaml swift-source.yaml > $@.tmp
        mv $@.tmp $@
 
 test:
        @bash test_merge.bash
+
+clean:
+       rm -f $(generated_templates)