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Disable unnecessary stuff if not main project #775

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Disable unnecessary stuff if not main project #775

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934263c
some options renamed
LucaCiucci Jan 2, 2023
3ee4bae
changed default options values when not main project
LucaCiucci Jan 2, 2023
2c98102
more complete main project check
LucaCiucci Jan 2, 2023
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43 changes: 25 additions & 18 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -2,31 +2,38 @@ cmake_minimum_required(VERSION 3.6...3.15)

project(cereal LANGUAGES CXX VERSION 1.3.2)

if(PROJECT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
set(CEREAL_MASTER_PROJECT OFF)
set(CEREAL_NOT_MASTER_PROJECT ON)
if(
(PROJECT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR) AND
(CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR) AND
(CMAKE_PROJECT_NAME STREQUAL PROJECT_NAME)
)
set(CEREAL_MASTER_PROJECT ON)
set(CEREAL_NOT_MASTER_PROJECT OFF)
endif()


if(APPLE)
option(SKIP_PORTABILITY_TEST "Skip portability (32 bit) tests" ON)
endif()

option(BUILD_DOC "Build documentation" ON)
option(BUILD_SANDBOX "Build sandbox examples" ON)
option(SKIP_PERFORMANCE_COMPARISON "Skip building performance sandbox comparison (requires boost)" OFF)
option(CEREAL_BUILD_DOC "Build documentation" ${CEREAL_MASTER_PROJECT})
option(CEREAL_BUILD_SANDBOX "Build sandbox examples" ${CEREAL_MASTER_PROJECT})
option(CEREAL_SKIP_PERFORMANCE_COMPARISON "Skip building performance sandbox comparison (requires boost)" ${CEREAL_NOT_MASTER_PROJECT})

# TODO: should not be needed! CK
if(NOT CMAKE_VERSION VERSION_LESS 3.0) # installing cereal requires INTERFACE lib
option(JUST_INSTALL_CEREAL "Don't do anything besides installing the library" OFF)
option(CEREAL_JUST_INSTALL_CEREAL "Don't do anything besides installing the library" OFF)
endif()


set(CEREAL_THREAD_LIBS)
if(UNIX)
option(THREAD_SAFE "Use mutexes to ensure thread safety" OFF)
if(THREAD_SAFE)
option(CEREAL_THREAD_SAFE "Use mutexes to ensure thread safety" OFF)
if(CEREAL_THREAD_SAFE)
message(STATUS "Use mutexes")
add_definitions(-DCEREAL_THREAD_SAFE=1)
add_definitions(-DCEREAL_CEREAL_THREAD_SAFE=1)
set(CEREAL_THREAD_LIBS pthread)
endif()
endif()
Expand All @@ -36,13 +43,13 @@ if(MSVC)
add_compile_options(/bigobj /W3 /WX)
else()
add_compile_options(-Wall -Wextra -pedantic -Wshadow -Wold-style-cast)
option(WITH_WERROR "Compile with '-Werror' C++ compiler flag" ON)
if(WITH_WERROR)
option(CEREAL_WITH_WERROR "Compile with '-Werror' C++ compiler flag" ON)
if(CEREAL_WITH_WERROR)
add_compile_options(-Werror)
endif()

option(CLANG_USE_LIBCPP "Use libc++ for clang compilation" OFF)
if(APPLE OR CLANG_USE_LIBCPP)
option(CEREAL_CLANG_USE_LIBCPP "Use libc++ for clang compilation" OFF)
if(APPLE OR CEREAL_CLANG_USE_LIBCPP)
message(STATUS "Use libc++")
add_compile_options(-stdlib=libc++)
# TODO: use add_link_options(-stdlib=libc++ -lc++abi") bud this needs cmake 3.13! CK
Expand Down Expand Up @@ -101,29 +108,29 @@ if(CEREAL_INSTALL)
endif()


if(JUST_INSTALL_CEREAL)
if(CEREAL_JUST_INSTALL_CEREAL)
return()
endif()


if(NOT SKIP_PERFORMANCE_COMPARISON)
if(NOT CEREAL_SKIP_PERFORMANCE_COMPARISON)
# Boost serialization for performance sandbox
find_package(Boost REQUIRED COMPONENTS serialization)
endif()


option(BUILD_TESTS "Build tests" ${CEREAL_MASTER_PROJECT})
if(BUILD_TESTS)
option(CEREAL_BUILD_TESTS "Build tests" ${CEREAL_MASTER_PROJECT})
if(CEREAL_BUILD_TESTS)
enable_testing()
add_subdirectory(unittests)
endif()


if(BUILD_SANDBOX)
if(CEREAL_BUILD_SANDBOX)
add_subdirectory(sandbox)
endif()


if(BUILD_DOC)
if(CEREAL_BUILD_DOC)
add_subdirectory(doc)
endif()