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Create an install target for the project

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- define the project's version in the cmake listfile
- create a config and config version file for the cmake package
- install the json.hpp file and the package's targets, config and
config version files
This commit is contained in:
Robert Marki 2016-04-25 10:23:14 +02:00
parent 30e396043a
commit b1a2e9a715
2 changed files with 39 additions and 2 deletions
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35
CMakeLists.txt
View File

@ -1,16 +1,25 @@
cmake_minimum_required(VERSION 3.0)
project(json CXX)
# define the project
project(json VERSION 2.0.0 LANGUAGES CXX)
# 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")
# 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>)
$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/src>
$<INSTALL_INTERFACE:${JSON_INCLUDE_DESTINATION}>)
# 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
@ -21,6 +30,28 @@ set_target_properties(${JSON_UNITTEST_TARGET_NAME} PROPERTIES
target_include_directories(${JSON_UNITTEST_TARGET_NAME} PRIVATE "test")
target_link_libraries(${JSON_UNITTEST_TARGET_NAME} ${JSON_TARGET_NAME})
# generate a config and config version file for the package
include(CMakePackageConfigHelpers)
configure_package_config_file("cmake/config.cmake.in"
"${CMAKE_BINARY_DIR}/${JSON_CONFIG_FILENAME}"
INSTALL_DESTINATION ${JSON_CONFIG_DESTINATION})
write_basic_package_version_file("${CMAKE_BINARY_DIR}/${JSON_CONFIGVERSION_FILENAME}"
VERSION ${PROJECT_VERSION}
COMPATIBILITY SameMajorVersion)
# export the library target and store build directory in package registry
export(TARGETS ${JSON_TARGET_NAME}
FILE "${CMAKE_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_BINARY_DIR}/${JSON_CONFIG_FILENAME}"
"${CMAKE_BINARY_DIR}/${JSON_CONFIGVERSION_FILENAME}"
DESTINATION ${JSON_CONFIG_DESTINATION})

6
cmake/config.cmake.in Normal file
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@ -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)