GSL/CMakeLists.txt

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CMake
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cmake_minimum_required(VERSION 3.8...3.16)
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/")
include(gsl_functions)
project(GSL VERSION 4.0.0 LANGUAGES CXX)
Update CMake usage (#493) * Refactor cmake file to have GSL as an interface CMake supports header only libraries as INTERFACE libraries. Using interfaces libraries make is easier for users to use the library because one just need to "link" agaisnt the library and necessary include paths, definitions, flags... will be taken care of. This commit creates a new interface library called GSL. It then add the following things to the GSL library: - compiler flags ex: (-std=c++14) - definitions ex: _SCL_SECURE_NO_WARNINGS - include paths ex: include/gsl - natvis file Another project can now have the GSL project as a git submodule and one only need to add the two following lines to their project to use the GSL. add_subdirectory(GSL) target_link_libraries(<some target> GSL) After cmake 3.8.0 a lot of the logic can be simplified. Right now the cmake file has an if for version checking, but when the minimun required version is 3.8.0 one can just delete the branching and keep the simpler version. * Cut support for c++11 Compiling on GCC6.2 with only the c++11 flag will generate compilation errors. For example some of the errors are related to the use of enable_if_t which is a c++14 feature. To avoid compilation errors this comiit removes c++11 support on linux. * Refactor code that pulls unittest-cpp Two minor changes: - uses cmake to find a proper installation of git (in case user does not have it on the path) - checks for the CMakeLists file instead. This is needed for the build itself and seems like a better way to do the checking * Refactor tests so they show together on VS This commit will make a VS geenrated project to group all tests under GSL_tests * Refactor tests configuration This creates a test configuration interface and add all the previous compiler options to that interface. compiler options are now sorted so it is easier to find them, and also one per line, so that modifications are easier to track from git.
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add_library(GSL INTERFACE)
add_library(Microsoft.GSL::GSL ALIAS GSL)
# https://cmake.org/cmake/help/latest/variable/PROJECT_IS_TOP_LEVEL.html
string(COMPARE EQUAL ${CMAKE_CURRENT_SOURCE_DIR} ${CMAKE_SOURCE_DIR} PROJECT_IS_TOP_LEVEL)
option(GSL_INSTALL "Generate and install GSL target" ${PROJECT_IS_TOP_LEVEL})
option(GSL_TEST "Build and perform GSL tests" ${PROJECT_IS_TOP_LEVEL})
# The implementation generally assumes a platform that implements C++14 support
target_compile_features(GSL INTERFACE "cxx_std_14")
Update CMake usage (#493) * Refactor cmake file to have GSL as an interface CMake supports header only libraries as INTERFACE libraries. Using interfaces libraries make is easier for users to use the library because one just need to "link" agaisnt the library and necessary include paths, definitions, flags... will be taken care of. This commit creates a new interface library called GSL. It then add the following things to the GSL library: - compiler flags ex: (-std=c++14) - definitions ex: _SCL_SECURE_NO_WARNINGS - include paths ex: include/gsl - natvis file Another project can now have the GSL project as a git submodule and one only need to add the two following lines to their project to use the GSL. add_subdirectory(GSL) target_link_libraries(<some target> GSL) After cmake 3.8.0 a lot of the logic can be simplified. Right now the cmake file has an if for version checking, but when the minimun required version is 3.8.0 one can just delete the branching and keep the simpler version. * Cut support for c++11 Compiling on GCC6.2 with only the c++11 flag will generate compilation errors. For example some of the errors are related to the use of enable_if_t which is a c++14 feature. To avoid compilation errors this comiit removes c++11 support on linux. * Refactor code that pulls unittest-cpp Two minor changes: - uses cmake to find a proper installation of git (in case user does not have it on the path) - checks for the CMakeLists file instead. This is needed for the build itself and seems like a better way to do the checking * Refactor tests so they show together on VS This commit will make a VS geenrated project to group all tests under GSL_tests * Refactor tests configuration This creates a test configuration interface and add all the previous compiler options to that interface. compiler options are now sorted so it is easier to find them, and also one per line, so that modifications are easier to track from git.
2017-04-25 20:08:36 -04:00
# Setup include directory
add_subdirectory(include)
# Add natvis file
gsl_add_native_visualizer_support()
Update CMake usage (#493) * Refactor cmake file to have GSL as an interface CMake supports header only libraries as INTERFACE libraries. Using interfaces libraries make is easier for users to use the library because one just need to "link" agaisnt the library and necessary include paths, definitions, flags... will be taken care of. This commit creates a new interface library called GSL. It then add the following things to the GSL library: - compiler flags ex: (-std=c++14) - definitions ex: _SCL_SECURE_NO_WARNINGS - include paths ex: include/gsl - natvis file Another project can now have the GSL project as a git submodule and one only need to add the two following lines to their project to use the GSL. add_subdirectory(GSL) target_link_libraries(<some target> GSL) After cmake 3.8.0 a lot of the logic can be simplified. Right now the cmake file has an if for version checking, but when the minimun required version is 3.8.0 one can just delete the branching and keep the simpler version. * Cut support for c++11 Compiling on GCC6.2 with only the c++11 flag will generate compilation errors. For example some of the errors are related to the use of enable_if_t which is a c++14 feature. To avoid compilation errors this comiit removes c++11 support on linux. * Refactor code that pulls unittest-cpp Two minor changes: - uses cmake to find a proper installation of git (in case user does not have it on the path) - checks for the CMakeLists file instead. This is needed for the build itself and seems like a better way to do the checking * Refactor tests so they show together on VS This commit will make a VS geenrated project to group all tests under GSL_tests * Refactor tests configuration This creates a test configuration interface and add all the previous compiler options to that interface. compiler options are now sorted so it is easier to find them, and also one per line, so that modifications are easier to track from git.
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if (GSL_INSTALL)
include(gsl_install)
endif()
if (GSL_TEST)
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enable_testing()
add_subdirectory(tests)
endif()