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- exported targets go to separate generated file and package config file generated from template to use automatic package resolving and resolution logic

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CMake  provides helpers to generate config file. Generated config file has usefull macro check_required_components() to set necessary variables like PackageName_FOUND if requirements has been satisfied. An absence of dedicated config file confuses user project as necessary variables are not set.
This commit is contained in:
Sergey Rachev 2021-02-27 18:25:11 +01:00 committed by Christopher Dunn
parent 94cda30dbd
commit b640795571
2 changed files with 14 additions and 2 deletions
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6
CMakeLists.txt
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@ -177,11 +177,13 @@ if(JSONCPP_WITH_CMAKE_PACKAGE)
include(CMakePackageConfigHelpers)
install(EXPORT jsoncpp
DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/jsoncpp
FILE jsoncppConfig.cmake)
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
install(FILES ${CMAKE_CURRENT_BINARY_DIR}/jsoncppConfigVersion.cmake ${CMAKE_CURRENT_BINARY_DIR}/jsoncppConfig.cmake
DESTINATION ${CMAKE_INSTALL_LIBDIR}/cmake/jsoncpp)
endif()

10
jsoncppConfig.cmake.in Normal file
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@ -0,0 +1,10 @@
cmake_policy(PUSH)
cmake_policy(VERSION 3.0)
@PACKAGE_INIT@
include ( "${CMAKE_CURRENT_LIST_DIR}/jsoncpp-targets.cmake" )
check_required_components(JsonCpp)
cmake_policy(POP)