Reduce the cmake version requirement (#52)

Author: an-tao

CMakeLists.txt

@@ -1,4 +1,4 @@
-cmake_minimum_required(VERSION 3.6)
+cmake_minimum_required(VERSION 3.5)
 project(trantor)
 add_library(${PROJECT_NAME} STATIC)
 set(TRANTOR_MAJOR_VERSION 1)
@@ -87,9 +87,12 @@ else()
   set(TRANTOR_SOURCES ${TRANTOR_SOURCES} trantor/net/inner/NormalResolver.cc)
 endif()
 target_sources(${PROJECT_NAME} PRIVATE ${TRANTOR_SOURCES})
-target_compile_features(${PROJECT_NAME} PUBLIC cxx_std_14)
 target_link_libraries(${PROJECT_NAME} PRIVATE pthread)
 
+set_target_properties(${PROJECT_NAME} PROPERTIES CXX_STANDARD 14)
+set_target_properties(${PROJECT_NAME} PROPERTIES CXX_STANDARD_REQUIRED ON)
+set_target_properties(${PROJECT_NAME} PROPERTIES CXX_EXTENSIONS OFF)
+
 if(MAKETEST STREQUAL YES)
   add_subdirectory(trantor/tests)
   find_package(GTest)

README.md

@@ -9,5 +9,5 @@ Drawing on the design of Muduo Library
 ## Dependence
 
 gcc 5.4.0 or newer;    
-cmake 3.6 or newer;    
+cmake 3.5 or newer;    
 linux kernel 2.6.9 x86-64 or newer;

trantor/tests/CMakeLists.txt

@@ -52,3 +52,26 @@ target_link_libraries(kickoff_test PRIVATE trantor pthread)
 add_executable(dns_test DnsTest.cc)
 target_link_libraries(dns_test PRIVATE trantor pthread)
 
+set(targets_list
+    ssl_server_test
+    ssl_client_test
+    serial_task_queue_test1
+    serial_task_queue_test2
+    timer_test
+    timer_test1
+    run_in_loop_test1
+    run_in_loop_test2
+    logger_test
+    async_file_logger_test
+    tcp_server_test
+    concurrent_task_queue_test
+    tcp_client_test
+    async_file_logger_test1
+    sendfile_test
+    timing_wheel_test
+    kickoff_test
+    dns_test)
+
+set_property(TARGET ${targets_list} PROPERTY CXX_STANDARD 14)
+set_property(TARGET ${targets_list} PROPERTY CXX_STANDARD_REQUIRED ON)
+set_property(TARGET ${targets_list} PROPERTY CXX_EXTENSIONS OFF)

trantor/unittests/CMakeLists.txt

@@ -5,3 +5,7 @@ add_executable(inetaddress_unittest InetAddressUnittest.cc)
 target_link_libraries(inetaddress_unittest PRIVATE trantor GTest::GTest)
 add_executable(date_unittest DateUnittest.cc)
 target_link_libraries(date_unittest PRIVATE trantor GTest::GTest)
+set(UNITTEST_TARGETS msgbuffer_unittest inetaddress_unittest date_unittest)
+set_property(TARGET ${UNITTEST_TARGETS} PROPERTY CXX_STANDARD 14)
+set_property(TARGET ${UNITTEST_TARGETS} PROPERTY CXX_STANDARD_REQUIRED ON)
+set_property(TARGET ${UNITTEST_TARGETS} PROPERTY CXX_EXTENSIONS OFF)