# vim: et ts=4 sts=4 sw=4 tw=0

# ==== Define cmake build policies that affect compilation and linkage default behaviors

#

# Set the JSONCPP_NEWEST_VALIDATED_POLICIES_VERSION string to the newest cmake version

# policies that provide successful builds. By setting JSONCPP_NEWEST_VALIDATED_POLICIES_VERSION

# to a value greater than the oldest policies, all policies between

# JSONCPP_OLDEST_VALIDATED_POLICIES_VERSION and CMAKE_VERSION (used for this build)

# are set to their NEW behavior, thereby suppressing policy warnings related to policies

# between the JSONCPP_OLDEST_VALIDATED_POLICIES_VERSION and CMAKE_VERSION.

#

# CMake versions greater than the JSONCPP_NEWEST_VALIDATED_POLICIES_VERSION policies will

# continue to generate policy warnings "CMake Warning (dev)...Policy CMP0XXX is not set:"

#

set(JSONCPP_OLDEST_VALIDATED_POLICIES_VERSION "3.8.0")

set(JSONCPP_NEWEST_VALIDATED_POLICIES_VERSION "3.13.2")

cmake_minimum_required(VERSION ${JSONCPP_OLDEST_VALIDATED_POLICIES_VERSION})

if("${CMAKE_VERSION}" VERSION_LESS "${JSONCPP_NEWEST_VALIDATED_POLICIES_VERSION}")

#Set and use the newest available cmake policies that are validated to work

set(JSONCPP_CMAKE_POLICY_VERSION "${CMAKE_VERSION}")

else()

set(JSONCPP_CMAKE_POLICY_VERSION "${JSONCPP_NEWEST_VALIDATED_POLICIES_VERSION}")

endif()

cmake_policy(VERSION ${JSONCPP_CMAKE_POLICY_VERSION})

if(POLICY CMP0091)

cmake_policy(SET CMP0091 NEW)

endif()

#

# Now enumerate specific policies newer than JSONCPP_NEWEST_VALIDATED_POLICIES_VERSION

# that may need to be individually set to NEW/OLD

#

foreach(pnew "") # Currently Empty

if(POLICY ${pnew})

cmake_policy(SET ${pnew} NEW)

endif()

endforeach()

foreach(pold "") # Currently Empty

if(POLICY ${pold})

cmake_policy(SET ${pold} OLD)

endif()

endforeach()

# Build the library with C++11 standard support, independent from other including

# software which may use a different CXX_STANDARD or CMAKE_CXX_STANDARD.

set(CMAKE_CXX_STANDARD 11)

set(CMAKE_CXX_EXTENSIONS OFF)

set(CMAKE_CXX_STANDARD_REQUIRED ON)

# Ensure that CMAKE_BUILD_TYPE has a value specified for single configuration generators.

if(NOT DEFINED CMAKE_BUILD_TYPE AND NOT DEFINED CMAKE_CONFIGURATION_TYPES)

set(CMAKE_BUILD_TYPE Release CACHE STRING

"Choose the type of build, options are: None Debug Release RelWithDebInfo MinSizeRel Coverage.")

endif()

set(CMAKE_MODULE_PATH ${CMAKE_MODULE_PATH} "${CMAKE_CURRENT_SOURCE_DIR}/cmake")

# ---------------------------------------------------------------------------

# use ccache if found, has to be done before project()

# ---------------------------------------------------------------------------

find_program(CCACHE_EXECUTABLE "ccache" HINTS /usr/local/bin /opt/local/bin)

if(CCACHE_EXECUTABLE)

message(STATUS "use ccache")

set(CMAKE_CXX_COMPILER_LAUNCHER "${CCACHE_EXECUTABLE}" CACHE PATH "ccache" FORCE)

set(CMAKE_C_COMPILER_LAUNCHER "${CCACHE_EXECUTABLE}" CACHE PATH "ccache" FORCE)

endif()

project(jsoncpp

# Note: version must be updated in three places when doing a release. This

# annoying process ensures that amalgamate, CMake, and meson all report the

# correct version.

# 1. ./meson.build

# 2. ./include/json/version.h

# 3. ./CMakeLists.txt

# IMPORTANT: also update the PROJECT_SOVERSION!!

VERSION 1.9.5 # <major>[.<minor>[.<patch>[.<tweak>]]]

LANGUAGES CXX)

message(STATUS "JsonCpp Version: ${PROJECT_VERSION_MAJOR}.${PROJECT_VERSION_MINOR}.${PROJECT_VERSION_PATCH}")

set(PROJECT_SOVERSION 25)

include(${CMAKE_CURRENT_SOURCE_DIR}/include/PreventInSourceBuilds.cmake)

include(${CMAKE_CURRENT_SOURCE_DIR}/include/PreventInBuildInstalls.cmake)

option(JSONCPP_WITH_TESTS "Compile and (for jsoncpp_check) run JsonCpp test executables" ON)

option(JSONCPP_WITH_POST_BUILD_UNITTEST "Automatically run unit-tests as a post build step" ON)

option(JSONCPP_WITH_WARNING_AS_ERROR "Force compilation to fail if a warning occurs" OFF)

option(JSONCPP_WITH_STRICT_ISO "Issue all the warnings demanded by strict ISO C and ISO C++" ON)

option(JSONCPP_WITH_PKGCONFIG_SUPPORT "Generate and install .pc files" ON)

option(JSONCPP_WITH_CMAKE_PACKAGE "Generate and install cmake package files" ON)

option(JSONCPP_WITH_EXAMPLE "Compile JsonCpp example" OFF)

option(JSONCPP_STATIC_WINDOWS_RUNTIME "Use static (MT/MTd) Windows runtime" OFF)

option(BUILD_SHARED_LIBS "Build jsoncpp_lib as a shared library." ON)

option(BUILD_STATIC_LIBS "Build jsoncpp_lib as a static library." ON)

option(BUILD_OBJECT_LIBS "Build jsoncpp_lib as a object library." ON)

# Adhere to GNU filesystem layout conventions

include(GNUInstallDirs)

if(CMAKE_CURRENT_SOURCE_DIR STREQUAL CMAKE_SOURCE_DIR)

set(CMAKE_ARCHIVE_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib" CACHE PATH "Archive output dir.")

set(CMAKE_LIBRARY_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/lib" CACHE PATH "Library output dir.")

set(CMAKE_PDB_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin" CACHE PATH "PDB (MSVC debug symbol)output dir.")

set(CMAKE_RUNTIME_OUTPUT_DIRECTORY "${CMAKE_BINARY_DIR}/bin" CACHE PATH "Executable/dll output dir.")

endif()

set(JSONCPP_USE_SECURE_MEMORY "0" CACHE STRING "-D...=1 to use memory-wiping allocator for STL")

configure_file("${PROJECT_SOURCE_DIR}/version.in"

"${PROJECT_BINARY_DIR}/version"

NEWLINE_STYLE UNIX)

macro(use_compilation_warning_as_error)

if(MSVC)

# Only enabled in debug because some old versions of VS STL generate

# warnings when compiled in release configuration.

add_compile_options($<$<CONFIG:Debug>:/WX>)

elseif(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")

add_compile_options(-Werror)

if(JSONCPP_WITH_STRICT_ISO)

add_compile_options(-pedantic-errors)

endif()

endif()

endmacro()

# Include our configuration header

include_directories(${jsoncpp_SOURCE_DIR}/include)

if(MSVC)

# Only enabled in debug because some old versions of VS STL generate

# unreachable code warning when compiled in release configuration.

add_compile_options($<$<CONFIG:Debug>:/W4>)

if (JSONCPP_STATIC_WINDOWS_RUNTIME)

set(CMAKE_MSVC_RUNTIME_LIBRARY "MultiThreaded$<$<CONFIG:Debug>:Debug>")

endif()

endif()

if(CMAKE_CXX_COMPILER_ID MATCHES "Clang")

# using regular Clang or AppleClang

add_compile_options(-Wall -Wconversion -Wshadow)

if(JSONCPP_WITH_WARNING_AS_ERROR)

add_compile_options(-Werror=conversion -Werror=sign-compare)

endif()

elseif(CMAKE_CXX_COMPILER_ID STREQUAL "GNU")

# using GCC

add_compile_options(-Wall -Wconversion -Wshadow -Wextra)

# not yet ready for -Wsign-conversion

if(JSONCPP_WITH_STRICT_ISO)

add_compile_options(-Wpedantic)

endif()

if(JSONCPP_WITH_WARNING_AS_ERROR)

add_compile_options(-Werror=conversion)

endif()

elseif(CMAKE_CXX_COMPILER_ID STREQUAL "Intel")

# using Intel compiler

add_compile_options(-Wall -Wconversion -Wshadow -Wextra)

if(JSONCPP_WITH_WARNING_AS_ERROR)

add_compile_options(-Werror=conversion)

elseif(JSONCPP_WITH_STRICT_ISO)

add_compile_options(-Wpedantic)

endif()

endif()

if(JSONCPP_WITH_WARNING_AS_ERROR)

use_compilation_warning_as_error()

endif()

if(JSONCPP_WITH_PKGCONFIG_SUPPORT)

include(JoinPaths)

join_paths(libdir_for_pc_file "\${exec_prefix}" "${CMAKE_INSTALL_LIBDIR}")

join_paths(includedir_for_pc_file "\${prefix}" "${CMAKE_INSTALL_INCLUDEDIR}")

configure_file(

"pkg-config/jsoncpp.pc.in"

"pkg-config/jsoncpp.pc"

@ONLY)

install(FILES "${CMAKE_CURRENT_BINARY_DIR}/pkg-config/jsoncpp.pc"

DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")

endif()

if(JSONCPP_WITH_CMAKE_PACKAGE)

include(CMakePackageConfigHelpers)

install(EXPORT jsoncpp

DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/jsoncpp

FILE jsoncpp-targets.cmake)

configure_package_config_file(jsoncppConfig.cmake.in ${CMAKE_CURRENT_BINARY_DIR}/jsoncppConfig.cmake

INSTALL_DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/jsoncpp)

write_basic_package_version_file("${CMAKE_CURRENT_BINARY_DIR}/jsoncppConfigVersion.cmake"

VERSION ${PROJECT_VERSION}

COMPATIBILITY SameMajorVersion)

install(FILES

${CMAKE_CURRENT_BINARY_DIR}/jsoncppConfigVersion.cmake ${CMAKE_CURRENT_BINARY_DIR}/jsoncppConfig.cmake

${CMAKE_CURRENT_SOURCE_DIR}/jsoncpp-namespaced-targets.cmake

DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/jsoncpp)

endif()

if(JSONCPP_WITH_TESTS)

enable_testing()

include(CTest)

endif()

# Build the different applications

add_subdirectory(src)

#install the includes

add_subdirectory(include)

#install the example

if(JSONCPP_WITH_EXAMPLE)

add_subdirectory(example)

endif()