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Implement additional integration options #238

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merged 4 commits into from
Apr 26, 2016
Merged

Implement additional integration options #238

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28f73ed
Refactor CMake listfile to define an interface imported library
robertmrk Apr 24, 2016
30e3960
Export library target and store build directory in package registry
robertmrk Apr 25, 2016
b1a2e9a
Create an install target for the project
robertmrk Apr 25, 2016
192a692
Generate package config files in cmake's current binary directory
robertmrk Apr 25, 2016
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70 changes: 51 additions & 19 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
@@ -1,25 +1,57 @@
cmake_minimum_required(VERSION 2.8)
cmake_minimum_required(VERSION 3.0)

project(json CXX)
# define the project
project(json VERSION 2.0.0 LANGUAGES CXX)

add_executable(json_unit
src/json.hpp test/catch.hpp test/unit.cpp
)
# define project variables
set(JSON_TARGET_NAME ${PROJECT_NAME})
set(JSON_UNITTEST_TARGET_NAME "json_unit")
set(JSON_PACKAGE_NAME ${JSON_TARGET_NAME})
set(JSON_TARGETS_FILENAME "${JSON_PACKAGE_NAME}Targets.cmake")
set(JSON_CONFIG_FILENAME "${JSON_PACKAGE_NAME}Config.cmake")
set(JSON_CONFIGVERSION_FILENAME "${JSON_PACKAGE_NAME}ConfigVersion.cmake")
set(JSON_CONFIG_DESTINATION "cmake")
set(JSON_INCLUDE_DESTINATION "include/nlohmann")

if(MSVC)
set(CMAKE_CXX_FLAGS
"/EHsc"
)
# create and configure the library target
add_library(${JSON_TARGET_NAME} INTERFACE)
target_include_directories(${JSON_TARGET_NAME} INTERFACE
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>
$<INSTALL_INTERFACE:${JSON_INCLUDE_DESTINATION}>)

STRING(REPLACE "/O2" "/Od" CMAKE_CXX_FLAGS_RELEASE ${CMAKE_CXX_FLAGS_RELEASE})
# create and configure the unit test target
add_executable(${JSON_UNITTEST_TARGET_NAME}
"test/catch.hpp" "test/unit.cpp")
set_target_properties(${JSON_UNITTEST_TARGET_NAME} PROPERTIES
CXX_STANDARD 11
CXX_STANDARD_REQUIRED ON
COMPILE_DEFINITIONS "$<$<CXX_COMPILER_ID:MSVC>:_SCL_SECURE_NO_WARNINGS>"
COMPILE_OPTIONS "$<$<CXX_COMPILER_ID:MSVC>:/EHsc;$<$<CONFIG:Release>:/Od>>")
target_include_directories(${JSON_UNITTEST_TARGET_NAME} PRIVATE "test")
target_link_libraries(${JSON_UNITTEST_TARGET_NAME} ${JSON_TARGET_NAME})

add_definitions(-D_SCL_SECURE_NO_WARNINGS)
else(MSVC)
set(CMAKE_CXX_FLAGS
"-std=c++11"
)
endif(MSVC)
# generate a config and config version file for the package
include(CMakePackageConfigHelpers)
configure_package_config_file("cmake/config.cmake.in"
"${CMAKE_CURRENT_BINARY_DIR}/${JSON_CONFIG_FILENAME}"
INSTALL_DESTINATION ${JSON_CONFIG_DESTINATION})
write_basic_package_version_file("${CMAKE_CURRENT_BINARY_DIR}/${JSON_CONFIGVERSION_FILENAME}"
VERSION ${PROJECT_VERSION}
COMPATIBILITY SameMajorVersion)

include_directories(
src test
)
# export the library target and store build directory in package registry
export(TARGETS ${JSON_TARGET_NAME}
FILE "${CMAKE_CURRENT_BINARY_DIR}/${JSON_TARGETS_FILENAME}")
export(PACKAGE ${JSON_PACKAGE_NAME})

# install library target and config files
install(TARGETS ${JSON_TARGET_NAME}
EXPORT ${JSON_PACKAGE_NAME})
install(FILES "src/json.hpp"
DESTINATION ${JSON_INCLUDE_DESTINATION})
install(EXPORT ${JSON_PACKAGE_NAME}
FILE ${JSON_TARGETS_FILENAME}
DESTINATION ${JSON_CONFIG_DESTINATION})
install(FILES "${CMAKE_CURRENT_BINARY_DIR}/${JSON_CONFIG_FILENAME}"
"${CMAKE_CURRENT_BINARY_DIR}/${JSON_CONFIGVERSION_FILENAME}"
DESTINATION ${JSON_CONFIG_DESTINATION})
6 changes: 6 additions & 0 deletions cmake/config.cmake.in
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Original file line number Diff line number Diff line change
@@ -0,0 +1,6 @@
@PACKAGE_INIT@

cmake_policy(PUSH)
cmake_policy(SET CMP0024 OLD)
include(${CMAKE_CURRENT_LIST_DIR}/@JSON_TARGETS_FILENAME@)
cmake_policy(POP)