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# Finds the International Components for Unicode (ICU) Library
#
# ICU_FOUND - True if ICU found.
# ICU_I18N_FOUND - True if ICU's internationalization library found.
# ICU_INCLUDE_DIRS - Directory to include to get ICU headers
# Note: always include ICU headers as, e.g.,
# unicode/utypes.h
# ICU_LIBRARIES - Libraries to link against for the common ICU
# ICU_I18N_LIBRARIES - Libraries to link against for ICU internationaliation
# (note: in addition to ICU_LIBRARIES)
# Our first goal is to find the icu-config script, if possible
find_program(
ICU_CONFIG_BIN
icu-config
)
find_program(
ICU_GENRB
genrb
)
if(ICU_CONFIG_BIN)
MESSAGE(STATUS "icu-config found at ${ICU_CONFIG_BIN}: Using that for configuration")
MESSAGE(STATUS "genrb found at ${ICU_GENRB}: Using that for generating transliteration data")
# Get include directories
execute_process(COMMAND "${ICU_CONFIG_BIN}" "--cppflags"
OUTPUT_VARIABLE ICU_INCLUDE_DIR
OUTPUT_STRIP_TRAILING_WHITESPACE
)
# Sanitize output
string(REPLACE "-I" "" ICU_INCLUDE_DIR ${ICU_INCLUDE_DIR})
string(REGEX REPLACE "^[ ]+" "" ICU_INCLUDE_DIR ${ICU_INCLUDE_DIR})
# Try to get the Libraries we need
execute_process(COMMAND "${ICU_CONFIG_BIN}" "--ldflags"
OUTPUT_VARIABLE ICU_LIBRARY_RAW
OUTPUT_STRIP_TRAILING_WHITESPACE
)
execute_process(COMMAND "${ICU_CONFIG_BIN}" "--ldflags-icuio"
OUTPUT_VARIABLE ICU_LIBRARY_IO_RAW
OUTPUT_STRIP_TRAILING_WHITESPACE
)
string(REGEX REPLACE "^[ ]+" "" ICU_LIBRARY ${ICU_LIBRARY_RAW})
string(REGEX REPLACE "^[ ]+" "" ICU_LIBRARY_IO ${ICU_LIBRARY_IO_RAW})
# Combine them
set(ICU_LIBRARY "${ICU_LIBRARY} ${ICU_LIBRARY_IO_RAW}")
# Get the version
execute_process(COMMAND "${ICU_CONFIG_BIN}" "--version"
OUTPUT_VARIABLE ICU_VERSION
OUTPUT_STRIP_TRAILING_WHITESPACE
)
else(ICU_CONFIG_BIN)
# Look for the header file.
find_path(
ICU_INCLUDE_DIR
NAMES unicode/utypes.h
DOC "Include directory for the ICU library")
mark_as_advanced(ICU_INCLUDE_DIR)
# Look for the library.
find_library(
ICU_LIBRARY
NAMES icuuc cygicuuc cygicuuc32
DOC "Libraries to link against for the common parts of ICU")
mark_as_advanced(ICU_LIBRARY)
endif(ICU_CONFIG_BIN)
# Copy the results to the output variables.
if(ICU_INCLUDE_DIR AND ICU_LIBRARY)
set(ICU_FOUND 1)
set(ICU_LIBRARIES ${ICU_LIBRARY})
set(ICU_INCLUDE_DIRS ${ICU_INCLUDE_DIR})
# Look for the ICU internationalization libraries
find_library(
ICU_I18N_LIBRARY
NAMES icuin icui18n cygicuin cygicuin32
DOC "Libraries to link against for ICU internationalization")
mark_as_advanced(ICU_I18N_LIBRARY)
if (ICU_I18N_LIBRARY)
set(ICU_I18N_FOUND 1)
set(ICU_I18N_LIBRARIES ${ICU_I18N_LIBRARY})
else (ICU_I18N_LIBRARY)
set(ICU_I18N_FOUND 0)
set(ICU_I18N_LIBRARIES)
endif (ICU_I18N_LIBRARY)
else(ICU_INCLUDE_DIR AND ICU_LIBRARY)
set(ICU_FOUND 0)
set(ICU_I18N_FOUND 0)
set(ICU_LIBRARIES)
set(ICU_I18N_LIBRARIES)
set(ICU_INCLUDE_DIRS)
endif(ICU_INCLUDE_DIR AND ICU_LIBRARY)
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