CMakeLists.txt

cmake_minimum_required (VERSION 3.8)

project ("ecmh")
set(CMAKE_CXX_STANDARD 17)

message(STATUS "CMAKE_PROJECT_NAME: ${CMAKE_PROJECT_NAME}")
message(STATUS "CMAKE_CURRENT_SOURCE_DIR: ${CMAKE_CURRENT_SOURCE_DIR}")
message(STATUS "PLATFORM: ${CMAKE_SYSTEM_NAME}")
message(STATUS "CMAKE_CXX_COMPILER_ID: ${CMAKE_CXX_COMPILER_ID}")
message(STATUS "PROJECT_SOURCE_DIR: ${PROJECT_SOURCE_DIR}")
message(STATUS "default flag: ${CMAKE_CXX_FLAGS}")
message(STATUS "debug flag: ${CMAKE_CXX_FLAGS_DEBUG}")
message(STATUS "release flag: ${CMAKE_CXX_FLAGS_RELEASE}")
# -march = native 自检测cpu对程序优化
# -Wl 将后面的参数传给linker --no-as-needed 不忽略链接时没有用到的动态库

if(${CMAKE_CXX_COMPILER_ID} STREQUAL "GNU")
    if( CMAKE_BUILD_TYPE STREQUAL "Debug" )
        set(CMAKE_CXX_FLAGS_DEBUG "-g -Wall -Wunused-function -pthread -maes -Wl,--no-as-needed -ldl")
        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99 -g -pthread -maes")
        message(STATUS "gcc - Debug mode")
    elseif( CMAKE_BUILD_TYPE STREQUAL "Release" ) 
        set(CMAKE_CXX_FLAGS_RELEASE "-Ofast -DNDEBUG -pthread -march=native -pipe -Wl,--no-as-needed -ldl")
        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99 -Ofast -pthread -maes")
        message(STATUS "gcc - Release mode")
    endif()
elseif(${CMAKE_CXX_COMPILER_ID} STREQUAL "MSVC")
    if( CMAKE_BUILD_TYPE STREQUAL "Debug" )
        message(STATUS "MSVC - Debug mode")
    elseif( CMAKE_BUILD_TYPE STREQUAL "Release" ) 
        message(STATUS "MSVC - Release mode")
    endif()
elseif(${CMAKE_CXX_COMPILER_ID} STREQUAL "Clang")
    if( CMAKE_BUILD_TYPE STREQUAL "Debug" )
        message(STATUS "MSVC - Debug mode")
    elseif( CMAKE_BUILD_TYPE STREQUAL "Release" ) 
        message(STATUS "MSVC - Release mode")
    endif()
elseif(${CMAKE_CXX_COMPILER_ID} STREQUAL "AppleClang")
    if( CMAKE_BUILD_TYPE STREQUAL "Debug" )
        set(CMAKE_CXX_FLAGS_RELEASE "-Ofast -DNDEBUG -pthread -march=native -pipe ")
        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99 -Ofast -pthread -maes")
        message(STATUS "MSVC - Debug mode")
    elseif( CMAKE_BUILD_TYPE STREQUAL "Release" ) 
        set(CMAKE_CXX_FLAGS_RELEASE "-Ofast -DNDEBUG -pthread -march=native -pipe ")
        set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -std=c99 -Ofast -pthread -maes")
        message(STATUS "MSVC - Release mode")
    endif()
endif()
message(STATUS "release flag: ${CMAKE_CXX_FLAGS_RELEASE}")


list(APPEND CMAKE_MODULE_PATH ${CMAKE_CURRENT_LIST_DIR}/cmake)
set(OPENSSL_ROOT_DIR "/usr/local/ssl")
message(STATUS "OPENSSL_ROOT_DIR: ${OPENSSL_ROOT_DIR}")
find_package(OpenSSL REQUIRED)


include_directories(
    ${OPENSSL_INCLUDE_DIR}
    "/usr/local/include"
    "${PROJECT_SOURCE_DIR}/include"
)
LINK_DIRECTORIES(
    /usr/local/lib
)

# 头文件目录
include_directories("${PROJECT_SOURCE_DIR}/include")

# 链接库目录
if (CMAKE_SYSTEM_NAME MATCHES "Linux")
    link_directories(${PROJECT_SOURCE_DIR}/lib/linux)
elseif(CMAKE_SYSTEM_NAME MATCHES "Windows")
    link_directories(${PROJECT_SOURCE_DIR}/lib/win)
else(CMAKE_SYSTEM_NAME MATCHES "Darwin")
    link_directories(${PROJECT_SOURCE_DIR}/lib/mac)
endif()

# 指定生成二进制文件目录
set(EXECUTABLE_OUTPUT_PATH ${PROJECT_SOURCE_DIR}/out)

# 查找当前目录下的所有源文件, 保存到 DIR_SRCS
aux_source_directory(./src DIR_SRCS)

# 将源代码添加到此项目的可执行文件。
add_executable (${CMAKE_PROJECT_NAME} ${DIR_SRCS})
TARGET_LINK_LIBRARIES(${CMAKE_PROJECT_NAME}  ${OPENSSL_LIBRARIES} -lbenchmark)


# # 链接库
# if(${CMAKE_CXX_COMPILER_ID} STREQUAL "GNU")
#     target_link_libraries(DiscreteLog crypto)
# else()
#     target_link_libraries(DiscreteLog libcrypto)
# endif()

# # 包含子项目
# add_subdirectory ("subproject")