Update dependency declarations in the Makefile

This reduces unnecessary rebuilds by swagger-codegen

Makefile

@@ -63,24 +63,32 @@ EXAMPLES=examples/examplepb/echo_service.proto \
 	 examples/examplepb/wrappers.proto
 EXAMPLE_SVCSRCS=$(EXAMPLES:.proto=.pb.go)
 EXAMPLE_GWSRCS=$(EXAMPLES:.proto=.pb.gw.go)
-EXAMPLE_SWAGGERSRCS=$(EXAMPLES:.proto=.swagger.json)
+EXAMPLE_SWAGGERSRCS=$(SWAGGER_EXAMPLES:.proto=.swagger.json)
 EXAMPLE_DEPS=examples/sub/message.proto examples/sub2/message.proto
 EXAMPLE_DEPSRCS=$(EXAMPLE_DEPS:.proto=.pb.go)
 
 EXAMPLE_CLIENT_DIR=examples/clients
 ECHO_EXAMPLE_SPEC=examples/examplepb/echo_service.swagger.json
-ECHO_EXAMPLE_SRCS=$(EXAMPLE_CLIENT_DIR)/echo/EchoServiceApi.go \
-		  $(EXAMPLE_CLIENT_DIR)/echo/ExamplepbSimpleMessage.go
+ECHO_EXAMPLE_SRCS=$(EXAMPLE_CLIENT_DIR)/echo/api_client.go \
+		  $(EXAMPLE_CLIENT_DIR)/echo/api_response.go \
+		  $(EXAMPLE_CLIENT_DIR)/echo/configuration.go \
+		  $(EXAMPLE_CLIENT_DIR)/echo/echo_service_api.go \
+		  $(EXAMPLE_CLIENT_DIR)/echo/examplepb_simple_message.go
 ABE_EXAMPLE_SPEC=examples/examplepb/a_bit_of_everything.swagger.json
-ABE_EXAMPLE_SRCS=$(EXAMPLE_CLIENT_DIR)/abe/ABitOfEverythingServiceApi.go \
-		 $(EXAMPLE_CLIENT_DIR)/abe/ABitOfEverythingNested.go \
-		 $(EXAMPLE_CLIENT_DIR)/abe/ExamplepbABitOfEverything.go \
-		 $(EXAMPLE_CLIENT_DIR)/abe/ExamplepbNumericEnum.go \
-		 $(EXAMPLE_CLIENT_DIR)/abe/ExamplepbIdMessage.go \
-		 $(EXAMPLE_CLIENT_DIR)/abe/NestedDeepEnum.go \
-		 $(EXAMPLE_CLIENT_DIR)/abe/ProtobufEmpty.go \
-		 $(EXAMPLE_CLIENT_DIR)/abe/Sub2IdMessage.go \
-		 $(EXAMPLE_CLIENT_DIR)/abe/SubStringMessage.go
+ABE_EXAMPLE_SRCS=$(EXAMPLE_CLIENT_DIR)/abe/a_bit_of_everything_nested.go \
+		 $(EXAMPLE_CLIENT_DIR)/abe/a_bit_of_everything_service_api.go \
+		 $(EXAMPLE_CLIENT_DIR)/abe/api_client.go \
+		 $(EXAMPLE_CLIENT_DIR)/abe/api_response.go \
+		 $(EXAMPLE_CLIENT_DIR)/abe/camel_case_service_name_api.go \
+		 $(EXAMPLE_CLIENT_DIR)/abe/configuration.go \
+		 $(EXAMPLE_CLIENT_DIR)/abe/echo_rpc_api.go \
+		 $(EXAMPLE_CLIENT_DIR)/abe/echo_service_api.go \
+		 $(EXAMPLE_CLIENT_DIR)/abe/examplepb_a_bit_of_everything.go \
+		 $(EXAMPLE_CLIENT_DIR)/abe/examplepb_body.go \
+		 $(EXAMPLE_CLIENT_DIR)/abe/examplepb_numeric_enum.go \
+		 $(EXAMPLE_CLIENT_DIR)/abe/nested_deep_enum.go \
+		 $(EXAMPLE_CLIENT_DIR)/abe/protobuf_empty.go \
+		 $(EXAMPLE_CLIENT_DIR)/abe/sub_string_message.go
 EXAMPLE_CLIENT_SRCS=$(ECHO_EXAMPLE_SRCS) $(ABE_EXAMPLE_SRCS)
 SWAGGER_CODEGEN=swagger-codegen
 
@@ -144,14 +152,14 @@ lint:
 	go vet $(PKG)/protoc-gen-grpc-gateway/...
 	go vet $(PKG)/protoc-gen-swagger/...
 
-clean distclean:
-	rm -f $(GATEWAY_PLUGIN)
+clean:
+	rm -f $(GATEWAY_PLUGIN) $(SWAGGER_PLUGIN)
+distclean: clean
+	rm -f $(GO_PLUGIN)
 realclean: distclean
 	rm -f $(EXAMPLE_SVCSRCS) $(EXAMPLE_DEPSRCS)
 	rm -f $(EXAMPLE_GWSRCS)
 	rm -f $(EXAMPLE_SWAGGERSRCS)
-	rm -f $(GO_PLUGIN)
-	rm -f $(SWAGGER_PLUGIN)
 	rm -f $(EXAMPLE_CLIENT_SRCS)
 	rm -f $(OPENAPIV2_GO)