sol2/CMakeLists.txt

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# # # # sol2
# The MIT License (MIT)
#
# Copyright (c) 2013-2021 Rapptz, ThePhD, and contributors
#
# Permission is hereby granted, free of charge, to any person obtaining a copy of
# this software and associated documentation files (the "Software"), to deal in
# the Software without restriction, including without limitation the rights to
# use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
# the Software, and to permit persons to whom the Software is furnished to do so,
# subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in all
# copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
# FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
# COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
# IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
# CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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# # # # sol2
# # # Required minimum version statement
cmake_minimum_required(VERSION 3.16.0)
# # # Project Include - file that is included after project declaration is finished
set(CMAKE_PROJECT_INCLUDE "${CMAKE_SOURCE_DIR}/cmake/Includes/Project.cmake")
# # # project declaration
project(sol2 VERSION 4.0.0 LANGUAGES CXX C)
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if (PROJECT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)
set(SOL2_IS_TOP_LEVEL TRUE)
message(STATUS "sol2 is the top-level directory...")
endif()
# Include standard modules
include(CMakePackageConfigHelpers)
include(CheckCXXCompilerFlag)
include(CMakeDependentOption)
include(GNUInstallDirs)
include(FetchContent)
# # # Configuration
# # Cached defines, strings, paths and options
set(SOL2_LUA_VERSION "5.3.5" CACHE STRING "The version of Lua needed. Can be 5.1, 5.2, 5.3, 5.4, LuaJIT, or a more specific 3-part version number for a specifc Lua (e.g., 5.3.5 or luajit-2.0.5)")
set(SOL2_BUILD_LUA TRUE CACHE BOOL "Always build Lua, do not search for it in the system")
set(SOL2_PLATFORM "x64" CACHE STRING "Target platform to compile for when building binaries (x86, x64)")
option(SOL2_CI "Whether or not we are in continguous integration mode" OFF)
option(SOL2_SYSTEM_INCLUDE "Whether or not sol2 should be considered a system include. This helps suppress errors for when the sol2 author is a big derp and doesn't fix every single warning, ever." ON)
option(SOL2_TESTS "Enable build of tests" OFF)
option(SOL2_EXAMPLES "Enable build of examples" OFF)
option(SOL2_INTEROP_EXAMPLES "Enable build of interop examples" OFF)
option(SOL2_DYNAMIC_LOADING_EXAMPLES "Enable build of interop examples" OFF)
option(SOL2_SINGLE "Enable generation and build of single header files" OFF)
option(SOL2_DOCS "Enable build of documentation" OFF)
option(SOL2_ENABLE_INSTALL "Enable installation of Sol2" ON)
# Single tests and examples tests will only be turned on if both SINGLE and TESTS are defined
CMAKE_DEPENDENT_OPTION(SOL2_TESTS_SINGLE "Enable build of tests using the premade single headers" ON
"SOL2_SINGLE;SOL2_TESTS" OFF)
CMAKE_DEPENDENT_OPTION(SOL2_EXAMPLES_SINGLE "Enable build of examples using the generated single headers" OFF
"SOL2_SINGLE;SOL2_EXAMPLES" OFF)
CMAKE_DEPENDENT_OPTION(SOL2_INTEROP_EXAMPLES_SINGLE "Enable build of interop examples using the generated single headers" OFF
"SOL2_SINGLE;SOL2_INTEROP_EXAMPLES" OFF)
CMAKE_DEPENDENT_OPTION(SOL2_DYNAMIC_LOADING_EXAMPLES_SINGLE "Enable build of dynamic loading examples using the generated single headers" OFF
"SOL2_SINGLE;SOL2_DYNAMIC_LOADING_EXAMPLES" OFF)
CMAKE_DEPENDENT_OPTION(SOL2_TESTS_EXAMPLES "Enable build of examples as tests" ON
"SOL2_EXAMPLES" OFF)
CMAKE_DEPENDENT_OPTION(SOL2_TESTS_INTEROP_EXAMPLES "Enable build of interop examples as tests" ON
"SOL2_INTEROP_EXAMPLES" OFF)
CMAKE_DEPENDENT_OPTION(SOL2_TESTS_DYNAMIC_LOADING_EXAMPLES "Enable build of dynamic loading examples as tests" ON
"SOL2_DYNAMIC_LOADING_EXAMPLES" OFF)
CMAKE_DEPENDENT_OPTION(BUILD_LUA_AS_DLL "Build Lua as a DLL" ON
"SOL2_BUILD_LUA" OFF)
if (SOL2_SYSTEM_INCLUDE)
set(sol2-system-include SYSTEM)
endif()
# # # sol2 Source Groups
# # Sources everyone is going to need
# Header files
file(GLOB SOL2_HEADER_SOURCES ${CMAKE_CURRENT_SOURCE_DIR}/include/sol*.hpp)
source_group(sol2 FILES ${SOL2_HEADER_SOURCES})
# # # sol2 Library
# # Add a target for sol2's library to be included by external users
add_library(sol2 INTERFACE)
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add_library(sol2::sol2 ALIAS sol2)
target_sources(sol2 INTERFACE ${SOL2_SINGLE_HEADER_SOURCES})
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set_target_properties(sol2
PROPERTIES
EXPORT_NAME sol2::sol2)
target_include_directories(sol2 ${sol2-system-include} INTERFACE
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>
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$<INSTALL_INTERFACE:include>)
# # Version configurations
configure_package_config_file(
cmake/sol2-config.cmake.in
"${CMAKE_CURRENT_BINARY_DIR}/cmake/sol2-config.cmake"
INSTALL_DESTINATION lib/cmake/sol2
NO_CHECK_REQUIRED_COMPONENTS_MACRO)
write_basic_package_version_file(
"${CMAKE_CURRENT_BINARY_DIR}/cmake/sol2-config-version.cmake"
COMPATIBILITY AnyNewerVersion)
export(TARGETS sol2 FILE "${CMAKE_CURRENT_BINARY_DIR}/cmake/sol2-targets.cmake")
if(SOL2_ENABLE_INSTALL)
install(TARGETS sol2
EXPORT sol2)
install(EXPORT sol2
FILE sol2-targets.cmake
DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/sol2")
install(DIRECTORY include/sol
DESTINATION "${CMAKE_INSTALL_INCLUDEDIR}")
install(FILES
"${CMAKE_CURRENT_BINARY_DIR}/cmake/sol2-config.cmake"
"${CMAKE_CURRENT_BINARY_DIR}/cmake/sol2-config-version.cmake"
DESTINATION "${CMAKE_INSTALL_LIBDIR}/cmake/sol2")
endif()
# # # Single header target
# Find Python3 for single header / forward header generation
if (SOL2_SINGLE)
message(STATUS "sol2 adding single...")
add_subdirectory(single)
endif()
# # # documentation
# Generates the docs
if (SOL2_DOCS)
message(STATUS "sol2 adding docs...")
add_subdirectory(documentation)
endif()
if(SOL2_ENABLE_INSTALL)
# pkg-config support, except on Windows
if(NOT WIN32 OR NOT CMAKE_HOST_SYSTEM_NAME MATCHES Windows)
set(PKGCONFIG_INSTALL_DIR
"${CMAKE_INSTALL_DATAROOTDIR}/pkgconfig"
CACHE PATH "Path where sol2.pc is installed")
configure_file("${CMAKE_CURRENT_SOURCE_DIR}/sol2.pc.in" "${CMAKE_CURRENT_BINARY_DIR}/sol2.pc" @ONLY)
install(FILES "${CMAKE_CURRENT_BINARY_DIR}/sol2.pc" DESTINATION "${PKGCONFIG_INSTALL_DIR}")
endif()
endif()
if (SOL2_CI)
message(STATUS "sol2 Contiguous Integration is on")
endif()
if (SOL2_EXAMPLES OR SOL2_TESTS_EXAMPLES OR SOL2_EXAMPLES_SINGLE OR SOL2_INTEROP_EXAMPLES OR SOL2_TESTS_INTEROP_EXAMPLES OR SOL2_INTEROP_EXAMPLES_SINGLE OR SOL2_DYNAMIC_LOADING_EXAMPLES OR SOL2_TESTS_DYNAMIC_LOADING_EXAMPLES OR SOL2_DYNAMIC_LOADING_EXAMPLES_SINGLE)
set(SOL2_DO_EXAMPLES TRUE)
else()
set(SOL2_DO_EXAMPLES FALSE)
endif()
if (SOL2_TESTS OR SOL2_TESTS_SINGLE)
set(SOL2_DO_TESTS TRUE)
else()
set(SOL2_DO_TESTS FALSE)
endif()
# # # Tests, Examples and other CI suites that come with sol2
if (SOL2_IS_TOP_LEVEL AND (SOL2_DO_TESTS OR SOL2_DO_EXAMPLES))
# # # General project output locations
if (CMAKE_SIZEOF_VOID_P EQUAL 4)
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/x86/lib")
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/x86/bin")
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/x86/bin")
else()
set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/x64/lib")
set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/x64/bin")
set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/x64/bin")
endif()
# # # Libraries
# Here, we pull in all the necessary libraries for building examples and tests
# Find threading library
find_package(Threads REQUIRED)
string(TOLOWER ${SOL2_LUA_VERSION} NORMALIZED_LUA_VERSION)
# Find way to get Lua: build if requested, or attempt to build if no matching version is found
if (SOL2_BUILD_LUA)
find_package(LuaBuild REQUIRED COMPONENTS ${SOL2_LUA_VERSION})
elseif (NOT SOL2_LUA_VERSION)
find_package(LuaBuild REQUIRED)
else ()
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if (NORMALIZED_LUA_VERSION MATCHES "5.1")
set(CREATE_LUALIB_TARGET TRUE)
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find_package(Lua 5.1 EXACT REQUIRED)
elseif(NORMALIZED_LUA_VERSION MATCHES "5.2")
set(CREATE_LUALIB_TARGET TRUE)
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find_package(Lua 5.2 EXACT REQUIRED)
elseif(NORMALIZED_LUA_VERSION MATCHES "5.3")
set(CREATE_LUALIB_TARGET TRUE)
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find_package(Lua 5.3 EXACT REQUIRED)
elseif(NORMALIZED_LUA_VERSION MATCHES "5.4")
set(CREATE_LUALIB_TARGET TRUE)
find_package(Lua 5.4 EXACT REQUIRED)
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elseif(NORMALIZED_LUA_VERSION MATCHES "luajit")
set(CREATE_LUALIB_TARGET TRUE)
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find_package(LuaJIT REQUIRED)
else()
find_package(LuaBuild ${SOL2_LUA_VERSION} REQUIRED)
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endif()
endif()
if (CREATE_LUALIB_TARGET AND LUA_FOUND)
set(lualib lua_imported_lib_${SOL2_LUA_VERSION})
foreach(lua_search_lib ${LUA_LIBRARIES})
get_filename_component(lsl_fname ${lua_search_lib} NAME)
if (lsl_fname MATCHES "lua" OR lsl_fname MATCHES "Lua" OR lsl_fname MATCHES "LUA")
if (lsl_fname MATCHES "\.so|\.dylib|\.dll")
set(lualibtype SHARED)
set(lualiblocation ${lua_search_lib})
else()
set(lualibtype STATIC)
set(lualiblocation ${lua_search_lib})
endif()
else()
set(LUA_SEARCH_DEPENDENCY_LIBS ${LUA_SEARCH_DEPENDENCY_LIBS} "${lua_search_lib}")
endif()
endforeach()
add_library(${lualib} ${lualibtype} IMPORTED)
set_target_properties(${lualib}
PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES ${LUA_INCLUDE_DIR}
INTERFACE_LINK_LIBRARIES ${LUA_SEARCH_DEPENDENCY_LIBS} ${CMAKE_DL_LIBS}
IMPORTED_LINK_INTERFACE_LANGUAGES C
IMPORTED_LOCATION ${lualiblocation})
set(LUA_LIBRARIES ${lualib})
endif()
if (NOT LUA_FOUND AND NOT LUABUILD_FOUND)
message(FATAL_ERROR "sol2 Lua \"${SOL2_LUA_VERSION}\" not found and could not be targeted for building")
endif()
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# # Enable test harness for regular, example or single tests
if (SOL2_DO_TESTS OR (SOL2_TESTS_EXAMPLES AND SOL2_DO_EXAMPLES))
# enable ctest
message(STATUS "sol2 testing enabled...")
enable_testing()
endif()
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# # # Examples
# # Enable examples to be built against the library
if (SOL2_DO_EXAMPLES)
# NOTE: will also add to tests if TESTS is defined
message(STATUS "sol2 adding examples...")
add_subdirectory(examples "${CMAKE_BINARY_DIR}/examples")
endif()
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# # # Tests
# # Add tests here
if (SOL2_DO_TESTS)
# add subdir to get going
message(STATUS "sol2 adding tests...")
add_subdirectory(tests "${CMAKE_BINARY_DIR}/tests")
endif()
# # # Scratch Space
# # Scratch space for diagnosing bugs and other shenanigans
if (SOL2_SCRATCH)
message(STATUS "sol2 adding scratch space...")
add_subdirectory(scratch)
endif()
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endif()