Change cmake_minimum_required to 3.11.0

Author: huangminghuang

CMakeLists.txt

@@ -2,7 +2,7 @@
 # refer to the root source directory of the project as ${MFAST_SOURCE_DIR} and
 # to the root binary directory of the project as ${MFAST_BINARY_DIR}.
 
-cmake_minimum_required(VERSION 2.8.12)
+cmake_minimum_required(VERSION 3.11.0)
 project (mFAST CXX)
 
 # options to build tests, examples and packages

cmake/SetCompilerWarnings.cmake

@@ -1,7 +1,6 @@
 # Initialize CXXFLAGS.
-if (NOT ${CMAKE_CXX_COMPILER_ID} STREQUAL "MSVC")
-    set(CMAKE_CXX_FLAGS "-W -Wall ${CMAKE_CXX_FLAGS}")
-endif()
 if (MSVC)
     add_definitions(/D_SCL_SECURE_NO_WARNINGS /D_CRT_SECURE_NO_WARNINGS)
+else()
+    set(CMAKE_CXX_FLAGS "-W -Wall ${CMAKE_CXX_FLAGS}")
 endif()

src/mfast/CMakeLists.txt

@@ -30,9 +30,7 @@ if (BUILD_SHARED_LIBS)
   target_include_directories(mfast PUBLIC $<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/src>)
   target_link_libraries(mfast PUBLIC Boost::boost)
 
-  if (NOT "${CMAKE_VERSION}" VERSION_LESS "2.8.12")
-    target_compile_definitions(mfast INTERFACE "-DMFAST_DYN_LINK")
-  endif (NOT "${CMAKE_VERSION}" VERSION_LESS "2.8.12")
+  target_compile_definitions(mfast INTERFACE "MFAST_DYN_LINK")
 
   if (CMAKE_COMPILER_IS_GNUCXX OR ("${CMAKE_CXX_COMPILER_ID}" STREQUAL "Clang"))
     set_target_properties(mfast PROPERTIES COMPILE_FLAGS -fvisibility=hidden)