Update benchmark

Author: yhirose

benchmark/Makefile

@@ -18,22 +18,37 @@ run : server
 	@./server
 
 server : cpp-httplib/main.cpp ../httplib.h
-	g++ -o $@ $(CXXFLAGS) $(CPPHTTPLIB_FLAGS) cpp-httplib/main.cpp
+	@g++ -o $@ $(CXXFLAGS) $(CPPHTTPLIB_FLAGS) cpp-httplib/main.cpp
 
-# cpp-httplib
-bench-base: server-base
+# cpp-httplib v0.19.0
+bench-v19: server-v19
+	@echo "---------------------\n cpp-httplib v0.19.0\n---------------------\n"
+	@./server-v19 & export PID=$$!; $(BENCH); kill $${PID}
+	@echo ""
+
+monitor-v19: server-v19
+	@./server-v19 & export PID=$$!; $(MONITOR); kill $${PID}
+
+run-v19 : server-v19
+	@./server-v19
+
+server-v19 : cpp-httplib-v19/main.cpp cpp-httplib-v19/httplib.h
+	@g++ -o $@ $(CXXFLAGS) $(CPPHTTPLIB_FLAGS) cpp-httplib-v19/main.cpp
+
+# cpp-httplib v0.18.0
+bench-v18: server-v18
 	@echo "---------------------\n cpp-httplib v0.18.0\n---------------------\n"
-	@./server-base & export PID=$$!; $(BENCH); kill $${PID}
+	@./server-v18 & export PID=$$!; $(BENCH); kill $${PID}
 	@echo ""
 
-monitor-base: server-base
-	@./server-base & export PID=$$!; $(MONITOR); kill $${PID}
+monitor-v18: server-v18
+	@./server-v18 & export PID=$$!; $(MONITOR); kill $${PID}
 
-run-base : server-base
-	@./server-base
+run-v18 : server-v18
+	@./server-v18
 
-server-base : cpp-httplib-base/main.cpp cpp-httplib-base/httplib.h
-	g++ -o $@ $(CXXFLAGS) $(CPPHTTPLIB_FLAGS) cpp-httplib-base/main.cpp
+server-v18 : cpp-httplib-v18/main.cpp cpp-httplib-v18/httplib.h
+	@g++ -o $@ $(CXXFLAGS) $(CPPHTTPLIB_FLAGS) cpp-httplib-v18/main.cpp
 
 # crow
 bench-crow: server-crow
@@ -48,12 +63,12 @@ run-crow : server-crow
 	@./server-crow
 
 server-crow : crow/main.cpp
-	g++ -o $@ $(CXXFLAGS) crow/main.cpp
+	@g++ -o $@ $(CXXFLAGS) crow/main.cpp
 
 # misc
-build: server server-base server-crow
+build: server server-v18 server-v19 server-crow
 
-bench-all: bench-crow bench bench-base
+bench-all: bench-crow bench bench-v19 bench-v18
 
 issue:
 	bombardier -c 10 -d 30s localhost:8080