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70 lines
2.1 KiB
CMake
70 lines
2.1 KiB
CMake
# CMake provides a FindICU module since version 3.7.
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# But it doesn't use pkgconfig, doesn't set expected variables,
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# And it returns incomplete dependencies if only some modules are searched.
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#[=======================================================================[.rst:
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FindICU
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-------
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Finds components of the ICU library.
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Accepted components are: uc, i18n, le, lx, io, data
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Result Variables
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^^^^^^^^^^^^^^^^
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This will define the following variables:
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``ICU_FOUND``
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True if components of ICU library are found.
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``ICU_VERSION``
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The version of the ICU library which was found.
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``ICU_<c>_FOUND``
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True if the system has the <c> component of ICU library.
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``ICU_<c>_INCLUDE_DIRS``
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Include directories needed to use the <c> component of ICU library.
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``ICU_<c>_LIBRARIES``
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Libraries needed to link to the <c> component of ICU library.
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#]=======================================================================]
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find_package(PkgConfig QUIET)
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set(ICU_KNOWN_COMPONENTS "uc" "i18n" "le" "lx" "io" "data")
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foreach(MOD_NAME IN LISTS ICU_FIND_COMPONENTS)
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if(NOT MOD_NAME IN_LIST ICU_KNOWN_COMPONENTS)
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message(FATAL_ERROR "Unknown ICU component: ${MOD_NAME}")
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endif()
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pkg_check_modules(PC_ICU_${MOD_NAME} QUIET icu-${MOD_NAME})
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# Check the libraries returned by pkg-config really exist.
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unset(PC_LIBRARIES)
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foreach(LIBRARY IN LISTS PC_ICU_${MOD_NAME}_LIBRARIES)
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unset(PC_LIBRARY CACHE)
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find_library(PC_LIBRARY NAMES ${LIBRARY})
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if(NOT PC_LIBRARY)
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unset(PC_ICU_${MOD_NAME}_FOUND)
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endif()
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list(APPEND PC_LIBRARIES ${PC_LIBRARY})
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endforeach()
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unset(PC_LIBRARY CACHE)
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if(${PC_ICU_${MOD_NAME}_FOUND})
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set(ICU_COMPONENT_FOUND TRUE)
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set(ICU_${MOD_NAME}_FOUND TRUE)
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set(ICU_${MOD_NAME}_LIBRARIES ${PC_LIBRARIES})
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set(ICU_${MOD_NAME}_INCLUDE_DIRS ${PC_ICU_${MOD_NAME}_INCLUDE_DIRS})
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set(ICU_VERSION ${PC_ICU_${MOD_NAME}_VERSION})
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endif()
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endforeach()
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include(FindPackageHandleStandardArgs)
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find_package_handle_standard_args(ICU
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FOUND_VAR ICU_FOUND
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REQUIRED_VARS ICU_COMPONENT_FOUND
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VERSION_VAR ICU_VERSION
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HANDLE_COMPONENTS
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)
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