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function(get_relative_link OUTPUT PATH)
if (PATH MATCHES "^[$]<[$]<CONFIG:DEBUG>:")
set(${OUTPUT} "" PARENT_SCOPE)
return()
endif()
string(REGEX REPLACE "^[$]<[$]<NOT:[$]<CONFIG:DEBUG>>:(.*)>$" "\\1" PATH "${PATH}")
get_filename_component(NAME "${PATH}" NAME_WE)
if (IS_ABSOLUTE ${PATH})
get_filename_component(DIRECTORY_NAME "${PATH}" DIRECTORY)
get_filename_component(FULL_NAME "${PATH}" NAME)
string(REGEX REPLACE "^lib([^.]+).*$" "\\1" LIB_NAME "${FULL_NAME}")
# If the regex didn't match (no lib prefix), fall back to name without extension
if ("${LIB_NAME}" STREQUAL "${FULL_NAME}")
set(LIB_NAME "${NAME}")
endif()
set(${OUTPUT} "-L\"${DIRECTORY_NAME}\" -l${LIB_NAME}" PARENT_SCOPE)
return()
endif()
if (NOT WIN32 AND NAME MATCHES "^lib")
string(REGEX REPLACE "^lib" "-l" LINK "${NAME}")
elseif (NAME MATCHES "^-")
set(LINK "${NAME}")
else()
string(CONCAT LINK "-l" "${NAME}")
endif()
set(${OUTPUT} "${LINK}" PARENT_SCOPE)
endfunction()
function(generate_pkgconfig TARGET DESCRIPTION)
# message("Generating pkg-config for ${TARGET}")
get_filename_component(PREFIX "${CMAKE_INSTALL_PREFIX}" REALPATH)
get_target_property(LIBRARY_TYPE "${TARGET}" TYPE)
if ("${LIBRARY_TYPE}" STREQUAL "INTERFACE_LIBRARY")
get_target_property(LIST "${TARGET}" INTERFACE_LINK_LIBRARIES)
else()
get_target_property(LIST "${TARGET}" LINK_LIBRARIES)
endif()
if ("${LIST}" STREQUAL "LIST-NOTFOUND")
set(LIST "")
endif()
set(INTERFACE_LIBS "")
if ("${LIBRARY_TYPE}" STREQUAL "INTERFACE_LIBRARY")
set(PROPAGATED "")
foreach (DEP ${LIST})
if (TARGET "${DEP}")
get_target_property(DEP_TYPE "${DEP}" TYPE)
if ("${DEP_TYPE}" STREQUAL "STATIC_LIBRARY" OR "${DEP_TYPE}" STREQUAL "SHARED_LIBRARY")
list(APPEND INTERFACE_LIBS "${DEP}")
get_target_property(DEP_LIBS "${DEP}" LINK_LIBRARIES)
if (NOT "${DEP_LIBS}" STREQUAL "DEP_LIBS-NOTFOUND")
list(APPEND PROPAGATED ${DEP_LIBS})
endif()
else()
list(APPEND PROPAGATED "${DEP}")
endif()
else()
list(APPEND PROPAGATED "${DEP}")
endif()
endforeach()
if (PROPAGATED)
list(REMOVE_DUPLICATES PROPAGATED)
endif()
set(LIST "${PROPAGATED}")
endif()
set(REQS "")
set(LIBS "")
foreach (LIB ${LIST})
if (TARGET "${LIB}")
if ("${LIBRARY_TYPE}" STREQUAL "SHARED_LIBRARY")
get_target_property(LIB_TYPE "${LIB}" TYPE)
if ("${LIB_TYPE}" STREQUAL "STATIC_LIBRARY")
continue()
endif()
endif()
set(HAS_REQS 1)
list(APPEND REQS "${LIB}")
else()
set(HAS_LIBS 1)
get_relative_link(LINK "${LIB}")
if (NOT "${LINK}" STREQUAL "")
list(APPEND LIBS "${LINK}")
endif()
endif()
endforeach()
if (HAS_REQS)
set(REQUIRES "")
foreach (REQ ${REQS})
set(REQUIRES "${REQUIRES} ${REQ}")
endforeach()
set(REQUIRES "Requires.private:${REQUIRES}\n")
endif()
if (HAS_LIBS)
set(LIBRARIES "")
list(REVERSE LIBS)
list(REMOVE_DUPLICATES LIBS)
foreach (LIB ${LIBS})
set(LIBRARIES " ${LIB}${LIBRARIES}")
endforeach()
set(LIBRARIES "Libs.private:${LIBRARIES}\n")
endif()
if (IS_ABSOLUTE "${CMAKE_INSTALL_INCLUDEDIR}")
set(PKGCONFIG_INCLUDEDIR "${CMAKE_INSTALL_INCLUDEDIR}")
else()
set(PKGCONFIG_INCLUDEDIR "\${prefix}/${CMAKE_INSTALL_INCLUDEDIR}")
endif()
if (IS_ABSOLUTE "${CMAKE_INSTALL_LIBDIR}")
set(PKGCONFIG_LIBDIR "${CMAKE_INSTALL_LIBDIR}")
else()
set(PKGCONFIG_LIBDIR "\${prefix}/${CMAKE_INSTALL_LIBDIR}")
endif()
file(MAKE_DIRECTORY "${CMAKE_CURRENT_BINARY_DIR}/pkgconfig")
get_target_property(TARGET_OUTPUT_NAME "${TARGET}" OUTPUT_NAME)
if ("${TARGET_OUTPUT_NAME}" STREQUAL "TARGET_OUTPUT_NAME-NOTFOUND")
set(TARGET_OUTPUT_NAME "${TARGET}")
endif()
if ("${LIBRARY_TYPE}" STREQUAL "INTERFACE_LIBRARY")
set(LIBS_LINE "")
foreach (ILIB ${INTERFACE_LIBS})
get_target_property(ILIB_OUTPUT_NAME "${ILIB}" OUTPUT_NAME)
if ("${ILIB_OUTPUT_NAME}" STREQUAL "ILIB_OUTPUT_NAME-NOTFOUND")
set(ILIB_OUTPUT_NAME "${ILIB}")
endif()
set(LIBS_LINE "${LIBS_LINE} -l${ILIB_OUTPUT_NAME}")
endforeach()
set(LIBS_LINE "Libs: -L\"${PKGCONFIG_LIBDIR}\"${LIBS_LINE}")
else()
set(LIBS_LINE "Libs: -L\"${PKGCONFIG_LIBDIR}\" -l${TARGET_OUTPUT_NAME}")
endif()
get_target_property(_td_iface_defs "${TARGET}" INTERFACE_COMPILE_DEFINITIONS)
set(CFLAGS_DEFS "")
if (NOT "${_td_iface_defs}" STREQUAL "_td_iface_defs-NOTFOUND")
foreach(_def ${_td_iface_defs})
string(APPEND CFLAGS_DEFS " -D${_def}")
endforeach()
unset(_def)
endif()
unset(_td_iface_defs)
file(GENERATE OUTPUT "${CMAKE_CURRENT_BINARY_DIR}/pkgconfig/${TARGET}.pc" CONTENT
"prefix=${PREFIX}
Name: ${TARGET}
Description: ${DESCRIPTION}
Version: ${PROJECT_VERSION}
CFlags: -I\"${PKGCONFIG_INCLUDEDIR}\"${CFLAGS_DEFS}
${LIBS_LINE}
${REQUIRES}${LIBRARIES}")
if ("${LIBRARY_TYPE}" STREQUAL "STATIC_LIBRARY" OR "${LIBRARY_TYPE}" STREQUAL "SHARED_LIBRARY" OR
"${LIBRARY_TYPE}" STREQUAL "INTERFACE_LIBRARY")
install(FILES "${CMAKE_CURRENT_BINARY_DIR}/pkgconfig/${TARGET}.pc" DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
else()
message(FATAL_ERROR "Don't know how to handle ${TARGET} of type ${LIBRARY_TYPE}")
endif()
endfunction()
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