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CMake/Modules/FindICU.cmake

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#.rst:
# FindICU
# -------
#
# Find the International Components for Unicode (ICU) libraries and
# programs.
#
# This module supports multiple components.
# Components can include any of: ``data``, ``i18n``, ``io``, ``le``,
# ``lx``, ``test``, ``tu`` and ``uc``.
#
# Note that on Windows ``data`` is named ``dt`` and ``i18n`` is named
# ``in``; any of the names may be used, and the appropriate
# platform-specific library name will be automatically selected.
#
# This module reports information about the ICU installation in
# several variables. General variables::
#
# ICU_VERSION - ICU release version
# ICU_FOUND - true if the main programs and libraries were found
# ICU_LIBRARIES - component libraries to be linked
# ICU_INCLUDE_DIRS - the directories containing the ICU headers
#
# Imported targets::
#
# ICU::<C>
#
# Where ``<C>`` is the name of an ICU component, for example
# ``ICU::i18n``.
#
# ICU programs are reported in::
#
# ICU_GENCNVAL_EXECUTABLE - path to gencnval executable
# ICU_ICUINFO_EXECUTABLE - path to icuinfo executable
# ICU_GENBRK_EXECUTABLE - path to genbrk executable
# ICU_ICU-CONFIG_EXECUTABLE - path to icu-config executable
# ICU_GENRB_EXECUTABLE - path to genrb executable
# ICU_GENDICT_EXECUTABLE - path to gendict executable
# ICU_DERB_EXECUTABLE - path to derb executable
# ICU_PKGDATA_EXECUTABLE - path to pkgdata executable
# ICU_UCONV_EXECUTABLE - path to uconv executable
# ICU_GENCFU_EXECUTABLE - path to gencfu executable
# ICU_MAKECONV_EXECUTABLE - path to makeconv executable
# ICU_GENNORM2_EXECUTABLE - path to gennorm2 executable
# ICU_GENCCODE_EXECUTABLE - path to genccode executable
# ICU_GENSPREP_EXECUTABLE - path to gensprep executable
# ICU_ICUPKG_EXECUTABLE - path to icupkg executable
# ICU_GENCMN_EXECUTABLE - path to gencmn executable
#
# ICU component libraries are reported in::
#
# ICU_<C>_FOUND - ON if component was found
# ICU_<C>_LIBRARIES - libraries for component
#
# Note that ``<C>`` is the uppercased name of the component.
#
# This module reads hints about search results from::
#
# ICU_ROOT - the root of the ICU installation
#
# The environment variable ``ICU_ROOT`` may also be used; the
# ICU_ROOT variable takes precedence.
#
# The following cache variables may also be set::
#
# ICU_<P>_EXECUTABLE - the path to executable <P>
# ICU_INCLUDE_DIR - the directory containing the ICU headers
# ICU_<C>_LIBRARY - the library for component <C>
#
# .. note::
#
# In most cases none of the above variables will require setting,
# unless multiple ICU versions are available and a specific version
# is required.
#
# Other variables one may set to control this module are::
#
# ICU_DEBUG - Set to ON to enable debug output from FindICU.
# Written by Roger Leigh <rleigh@codelibre.net>
#=============================================================================
# Copyright 2014-2016 University of Dundee
#
# Distributed under the OSI-approved BSD License (the "License");
# see accompanying file Copyright.txt for details.
#
# This software is distributed WITHOUT ANY WARRANTY; without even the
# implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
# See the License for more information.
#=============================================================================
# (To distribute this file outside of CMake, substitute the full
# License text for the above reference.)
set(icu_programs
gencnval
icuinfo
genbrk
icu-config
genrb
gendict
derb
pkgdata
uconv
gencfu
makeconv
gennorm2
genccode
gensprep
icupkg
gencmn)
# The ICU checks are contained in a function due to the large number
# of temporary variables needed.
function(_ICU_FIND)
# Set up search paths, taking compiler into account. Search ICU_ROOT,
# with ICU_ROOT in the environment as a fallback if unset.
if(ICU_ROOT)
list(APPEND icu_roots "${ICU_ROOT}")
else()
if(NOT "$ENV{ICU_ROOT}" STREQUAL "")
file(TO_CMAKE_PATH "$ENV{ICU_ROOT}" NATIVE_PATH)
list(APPEND icu_roots "${NATIVE_PATH}")
set(ICU_ROOT "${NATIVE_PATH}"
CACHE PATH "Location of the ICU installation" FORCE)
endif()
endif()
if(CMAKE_SIZEOF_VOID_P EQUAL 8)
# 64-bit binary directory
set(_bin64 "bin64")
# 64-bit library directory
set(_lib64 "lib64")
endif()
# Generic 64-bit and 32-bit directories
list(APPEND icu_binary_suffixes "${_bin64}" "bin")
list(APPEND icu_library_suffixes "${_lib64}" "lib")
# Find all ICU programs
foreach(program ${icu_programs})
string(TOUPPER "${program}" program_upcase)
set(cache_var "ICU_${program_upcase}_EXECUTABLE")
set(program_var "ICU_${program_upcase}_EXECUTABLE")
find_program("${cache_var}" "${program}"
HINTS ${icu_roots}
PATH_SUFFIXES ${icu_binary_suffixes}
DOC "ICU ${program} executable")
mark_as_advanced(cache_var)
set("${program_var}" "${${cache_var}}" PARENT_SCOPE)
endforeach()
# Find include directory
find_path(ICU_INCLUDE_DIR
NAMES "unicode/utypes.h"
HINTS ${icu_roots}
PATH_SUFFIXES ${icu_include_suffixes}
DOC "ICU include directory")
set(ICU_INCLUDE_DIR "${ICU_INCLUDE_DIR}" PARENT_SCOPE)
# Get version
if(ICU_INCLUDE_DIR AND EXISTS "${ICU_INCLUDE_DIR}/unicode/uvernum.h")
file(STRINGS "${ICU_INCLUDE_DIR}/unicode/uvernum.h" icu_header_str
REGEX "^#define[\t ]+U_ICU_VERSION[\t ]+\".*\".*")
string(REGEX REPLACE "^#define[\t ]+U_ICU_VERSION[\t ]+\"([^ \\n]*)\".*"
"\\1" icu_version_string "${icu_header_str}")
set(ICU_VERSION "${icu_version_string}" PARENT_SCOPE)
unset(icu_header_str)
unset(icu_version_string)
endif()
# Find all ICU libraries
set(ICU_REQUIRED_LIBS_FOUND ON)
foreach(component ${ICU_FIND_COMPONENTS})
string(TOUPPER "${component}" component_upcase)
set(component_cache "ICU_${component_upcase}_LIBRARY")
set(component_cache_release "${component_cache}_RELEASE")
set(component_cache_debug "${component_cache}_DEBUG")
set(component_found "${component_upcase}_FOUND")
set(component_libnames "icu${component}")
set(component_debug_libnames "icu${component}d")
# Special case deliberate library naming mismatches between Unix
# and Windows builds
unset(component_libnames)
unset(component_debug_libnames)
list(APPEND component_libnames "icu${component}")
list(APPEND component_debug_libnames "icu${component}d")
if(component STREQUAL "data")
list(APPEND component_libnames "icudt")
# Note there is no debug variant at present
list(APPEND component_debug_libnames "icudtd")
endif()
if(component STREQUAL "dt")
list(APPEND component_libnames "icudata")
# Note there is no debug variant at present
list(APPEND component_debug_libnames "icudatad")
endif()
if(component STREQUAL "i18n")
list(APPEND component_libnames "icuin")
list(APPEND component_debug_libnames "icuind")
endif()
if(component STREQUAL "in")
list(APPEND component_libnames "icui18n")
list(APPEND component_debug_libnames "icui18nd")
endif()
find_library("${component_cache_release}" ${component_libnames}
HINTS ${icu_roots}
PATH_SUFFIXES ${icu_library_suffixes}
DOC "ICU ${component} library (release)")
find_library("${component_cache_debug}" ${component_debug_libnames}
HINTS ${icu_roots}
PATH_SUFFIXES ${icu_library_suffixes}
DOC "ICU ${component} library (debug)")
include(${CMAKE_CURRENT_LIST_DIR}/SelectLibraryConfigurations.cmake)
select_library_configurations(ICU_${component_upcase})
mark_as_advanced("${component_cache_release}" "${component_cache_debug}")
if(${component_cache})
set("${component_found}" ON)
list(APPEND ICU_LIBRARY "${${component_cache}}")
endif()
mark_as_advanced("${component_found}")
set("${component_cache}" "${${component_cache}}" PARENT_SCOPE)
set("${component_found}" "${${component_found}}" PARENT_SCOPE)
if(${component_found})
if (ICU_FIND_REQUIRED_${component})
list(APPEND ICU_LIBS_FOUND "${component} (required)")
else()
list(APPEND ICU_LIBS_FOUND "${component} (optional)")
endif()
else()
if (ICU_FIND_REQUIRED_${component})
set(ICU_REQUIRED_LIBS_FOUND OFF)
list(APPEND ICU_LIBS_NOTFOUND "${component} (required)")
else()
list(APPEND ICU_LIBS_NOTFOUND "${component} (optional)")
endif()
endif()
endforeach()
set(_ICU_REQUIRED_LIBS_FOUND "${ICU_REQUIRED_LIBS_FOUND}" PARENT_SCOPE)
set(ICU_LIBRARY "${ICU_LIBRARY}" PARENT_SCOPE)
if(NOT ICU_FIND_QUIETLY)
if(ICU_LIBS_FOUND)
message(STATUS "Found the following ICU libraries:")
foreach(found ${ICU_LIBS_FOUND})
message(STATUS " ${found}")
endforeach()
endif()
if(ICU_LIBS_NOTFOUND)
message(STATUS "The following ICU libraries were not found:")
foreach(notfound ${ICU_LIBS_NOTFOUND})
message(STATUS " ${notfound}")
endforeach()
endif()
endif()
if(ICU_DEBUG)
message(STATUS "--------FindICU.cmake search debug--------")
message(STATUS "ICU binary path search order: ${icu_roots}")
message(STATUS "ICU include path search order: ${icu_roots}")
message(STATUS "ICU library path search order: ${icu_roots}")
message(STATUS "----------------")
endif()
endfunction()
_ICU_FIND()
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(ICU
FOUND_VAR ICU_FOUND
REQUIRED_VARS ICU_INCLUDE_DIR
ICU_LIBRARY
_ICU_REQUIRED_LIBS_FOUND
VERSION_VAR ICU_VERSION
FAIL_MESSAGE "Failed to find all ICU components")
unset(_ICU_REQUIRED_LIBS_FOUND)
if(ICU_FOUND)
set(ICU_INCLUDE_DIRS "${ICU_INCLUDE_DIR}")
set(ICU_LIBRARIES "${ICU_LIBRARY}")
foreach(_ICU_component ${ICU_FIND_COMPONENTS})
string(TOUPPER "${_ICU_component}" _ICU_component_upcase)
set(_ICU_component_cache "ICU_${_ICU_component_upcase}_LIBRARY")
set(_ICU_component_cache_release "ICU_${_ICU_component_upcase}_LIBRARY_RELEASE")
set(_ICU_component_cache_debug "ICU_${_ICU_component_upcase}_LIBRARY_DEBUG")
set(_ICU_component_lib "ICU_${_ICU_component_upcase}_LIBRARIES")
set(_ICU_component_found "${_ICU_component_upcase}_FOUND")
set(_ICU_imported_target "ICU::${_ICU_component}")
if(${_ICU_component_found})
set("${_ICU_component_lib}" "${${_ICU_component_cache}}")
if(NOT TARGET ${_ICU_imported_target})
add_library(${_ICU_imported_target} UNKNOWN IMPORTED)
if(ICU_INCLUDE_DIR)
set_target_properties(${_ICU_imported_target} PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${ICU_INCLUDE_DIR}")
endif()
if(EXISTS "${${_ICU_component_cache}}")
set_target_properties(${_ICU_imported_target} PROPERTIES
IMPORTED_LINK_INTERFACE_LANGUAGES "CXX"
IMPORTED_LOCATION "${${_ICU_component_cache}}")
endif()
if(EXISTS "${${_ICU_component_cache_release}}")
set_property(TARGET ${_ICU_imported_target} APPEND PROPERTY
IMPORTED_CONFIGURATIONS RELEASE)
set_target_properties(${_ICU_imported_target} PROPERTIES
IMPORTED_LINK_INTERFACE_LANGUAGES_RELEASE "CXX"
IMPORTED_LOCATION_RELEASE "${${_ICU_component_cache_release}}")
endif()
if(EXISTS "${${_ICU_component_cache_debug}}")
set_property(TARGET ${_ICU_imported_target} APPEND PROPERTY
IMPORTED_CONFIGURATIONS DEBUG)
set_target_properties(${_ICU_imported_target} PROPERTIES
IMPORTED_LINK_INTERFACE_LANGUAGES_DEBUG "CXX"
IMPORTED_LOCATION_DEBUG "${${_ICU_component_cache_debug}}")
endif()
endif()
endif()
unset(_ICU_component_upcase)
unset(_ICU_component_cache)
unset(_ICU_component_lib)
unset(_ICU_component_found)
unset(_ICU_imported_target)
endforeach()
endif()
if(ICU_DEBUG)
message(STATUS "--------FindICU.cmake results debug--------")
message(STATUS "ICU found: ${ICU_FOUND}")
message(STATUS "ICU_VERSION number: ${ICU_VERSION}")
message(STATUS "ICU_ROOT directory: ${ICU_ROOT}")
message(STATUS "ICU_INCLUDE_DIR directory: ${ICU_INCLUDE_DIR}")
message(STATUS "ICU_LIBRARIES: ${ICU_LIBRARIES}")
foreach(program IN LISTS icu_programs)
string(TOUPPER "${program}" program_upcase)
set(program_lib "ICU_${program_upcase}_EXECUTABLE")
message(STATUS "${program} program: ${${program_lib}}")
unset(program_upcase)
unset(program_lib)
endforeach()
foreach(component IN LISTS ICU_FIND_COMPONENTS)
string(TOUPPER "${component}" component_upcase)
set(component_lib "ICU_${component_upcase}_LIBRARIES")
set(component_found "${component_upcase}_FOUND")
message(STATUS "${component} library found: ${${component_found}}")
message(STATUS "${component} library: ${${component_lib}}")
unset(component_upcase)
unset(component_lib)
unset(component_found)
endforeach()
message(STATUS "----------------")
endif()
unset(icu_programs)
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