LongMath/CMakeLists.txt at main · yalpcode/LongMath · GitHub

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cmake_minimum_required(VERSION 3.19)

find_program(GCC_COMPILER gcc)
if(GCC_COMPILER)
    message(STATUS "GCC found: ${GCC_COMPILER}")
    set(CMAKE_C_COMPILER "gcc")
    set(CMAKE_CXX_COMPILER "g++")
else()
    message(STATUS "GCC not found, falling back to Clang")
    set(CMAKE_C_COMPILER "clang")
    set(CMAKE_CXX_COMPILER "clang++")
endif()

add_compile_options(-O2 -O3)

set(CMAKE_CXX_STANDARD 20)
set(CMAKE_CXX_STANDARD_REQUIRED ON)

if (CMAKE_CXX_COMPILER_ID STREQUAL "Clang")
    add_compile_options(-Wthread-safety)
endif()

project(LongMath)

include(FetchContent)

set(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
FetchContent_Declare(
    googletest
    GIT_REPOSITORY https://github.com/google/googletest.git
    GIT_TAG release-1.12.1
)
FetchContent_MakeAvailable(googletest)

FetchContent_Declare(
    benchmark
    GIT_REPOSITORY https://github.com/google/benchmark.git
    GIT_TAG v1.7.1
)
FetchContent_MakeAvailable(benchmark)

if(TARGET benchmark)
    target_compile_options(benchmark INTERFACE -Wno-unused-but-set-variable)
endif()

FetchContent_Declare(
    gflags
    GIT_REPOSITORY https://github.com/gflags/gflags.git
    GIT_TAG v2.2.2
)

FetchContent_MakeAvailable(gflags)

add_executable(main main.cpp)

include_directories(LongNum)
add_subdirectory(LongNum)

target_link_libraries(main LongNum benchmark::benchmark)

enable_testing()

add_executable(pitest PiTest.cpp)
target_link_libraries(pitest benchmark::benchmark)
target_link_libraries(pitest LongNum)
target_link_libraries(pitest gtest gtest_main)
target_link_libraries(pitest gflags::gflags)

add_executable(mathtest MathTest.cpp)
target_link_libraries(mathtest LongNum)
target_link_libraries(mathtest gtest gtest_main)