GSL/CMakeLists.txt
Jordan Maples [MSFT] e427b02c89
Reintroduce CMake changes that were reverted in #966 (#967)
* [cmake] Adding options for INSTALL and TEST (#964)

* [cmake] Adding GSL_INSTALL option

Not all consumers of GSL automatically want to have this install logic.

It's good practice to gate install logic behind an option.
For an example look at magic_enum:
https://github.com/Neargye/magic_enum/blob/master/CMakeLists.txt

If the client wants to install GSL they still can. But they should ask
for it by overriding GSL_INSTALL.

* Update cmake/guidelineSupportLibrary.cmake

added nl@eof

* Update CMakeLists.txt

* Update CMakeLists.txt

Co-authored-by: Juan Ramos <juanr0911@gmail.com>
Co-authored-by: Jordan Maples [MSFT] <49793787+JordanMaples@users.noreply.github.com>

* missing config line restored by moving GNUInstallDirs back to main file

Co-authored-by: hdf89shfdfs <31327577+hdf89shfdfs@users.noreply.github.com>
Co-authored-by: Juan Ramos <juanr0911@gmail.com>
2021-01-05 11:55:13 -08:00

62 lines
1.7 KiB
CMake

cmake_minimum_required(VERSION 3.1.3...3.16)
list(APPEND CMAKE_MODULE_PATH "${CMAKE_CURRENT_SOURCE_DIR}/cmake/")
include(guidelineSupportLibrary)
project(GSL
VERSION 3.1.0
LANGUAGES CXX
)
# Use GNUInstallDirs to provide the right locations on all platforms
include(GNUInstallDirs)
# Creates a library GSL which is an interface (header files only)
add_library(GSL INTERFACE)
# NOTE: If you want to use GSL prefer to link against GSL using this alias target
# EX:
# target_link_libraries(foobar PRIVATE Microsoft.GSL::GSL)
#
# Add Microsoft.GSL::GSL alias for GSL so that dependents can be agnostic about
# whether GSL was added via `add_subdirectory` or `find_package`
add_library(Microsoft.GSL::GSL ALIAS GSL)
# Determine whether this is a standalone project or included by other projects
set(GSL_STANDALONE_PROJECT OFF)
if (CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
set(GSL_STANDALONE_PROJECT ON)
endif()
### Project options
option(GSL_INSTALL "Generate and install GSL target" ${GSL_STANDALONE_PROJECT})
option(GSL_TEST "Build and perform GSL tests" ${GSL_STANDALONE_PROJECT})
# This GSL implementation generally assumes a platform that implements C++14 support.
set(gsl_min_cxx_standard "14")
if (GSL_STANDALONE_PROJECT)
gsl_set_default_cxx_standard(${gsl_min_cxx_standard})
else()
gsl_client_set_cxx_standard(${gsl_min_cxx_standard})
endif()
# Setup the include directory
gsl_target_include_directories(${GSL_STANDALONE_PROJECT})
# Add natvis file
gsl_add_native_visualizer_support()
# Add packaging support
gsl_create_packaging_file()
if (GSL_INSTALL)
# Setup install/export logic
gsl_install_logic()
endif()
if (GSL_TEST)
enable_testing()
add_subdirectory(tests)
endif()