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CMakeLists.txt: Add support for pkg-config #75

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Merged
merged 1 commit into from
May 24, 2025
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CMakeLists.txt: Add support for pkg-config #75

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24 changes: 24 additions & 0 deletions CMakeLists.txt
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Original file line number Diff line number Diff line change
Expand Up @@ -133,3 +133,27 @@ install(FILES ${CMAKE_CURRENT_BINARY_DIR}/CMakeFiles/${PROJECT_NAME}Config.cmake
install(EXPORT ${PROJECT_NAME}-targets
FILE ${PROJECT_NAME}Targets.cmake
DESTINATION ${PYBIND11_JSON_CMAKECONFIG_INSTALL_DIR})

# pkg-config support
if(NOT prefix_for_pc_file)
if(IS_ABSOLUTE "${CMAKE_INSTALL_DATAROOTDIR}")
set(prefix_for_pc_file "${CMAKE_INSTALL_PREFIX}")
else()
set(pc_datarootdir "${CMAKE_INSTALL_DATAROOTDIR}")
if(CMAKE_VERSION VERSION_LESS 3.20)
set(prefix_for_pc_file "\${pcfiledir}/..")
while(pc_datarootdir)
get_filename_component(pc_datarootdir "${pc_datarootdir}" DIRECTORY)
string(APPEND prefix_for_pc_file "/..")
endwhile()
else()
cmake_path(RELATIVE_PATH CMAKE_INSTALL_PREFIX BASE_DIRECTORY CMAKE_INSTALL_DATAROOTDIR
OUTPUT_VARIABLE prefix_for_pc_file)
endif()
endif()
endif()
set(includedir_for_pc_file "\${prefix}/${CMAKE_INSTALL_INCLUDEDIR}")
configure_file("${CMAKE_CURRENT_SOURCE_DIR}/pybind11_json.pc.in"
"${CMAKE_CURRENT_BINARY_DIR}/pybind11_json.pc" @ONLY)
install(FILES "${CMAKE_CURRENT_BINARY_DIR}/pybind11_json.pc"
DESTINATION "${CMAKE_INSTALL_DATAROOTDIR}/pkgconfig/")
7 changes: 7 additions & 0 deletions pybind11_json.pc.in
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Original file line number Diff line number Diff line change
@@ -0,0 +1,7 @@
prefix=@prefix_for_pc_file@
includedir=@includedir_for_pc_file@

Name: @PROJECT_NAME@
Description: Using nlohmann::json with pybind11
Version: @PROJECT_VERSION@
Cflags: -I${includedir}
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