summaryrefslogtreecommitdiffstats
path: root/Modules/FindICU.cmake
blob: 1bae825a53ef31c59ea5900544b141745b2873c4 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
# Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.

#[=======================================================================[.rst:
FindICU
-------

.. versionadded:: 3.7

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.

.. versionadded:: 3.11
  Added support for static libraries on Windows.

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``; ``<C>`` is lower-case.

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; ``<C>`` is upper-case.
  ICU_<C>_LIBRARIES - libraries for component; ``<C>`` is upper-case.

ICU datafiles are reported in::

  ICU_MAKEFILE_INC - Makefile.inc
  ICU_PKGDATA_INC - pkgdata.inc

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>; ``<P>`` is upper-case.
  ICU_INCLUDE_DIR - the directory containing the ICU headers
  ICU_<C>_LIBRARY - the library for component <C>; ``<C>`` is upper-case.

.. 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>

set(icu_programs
  gencnval
  icuinfo
  genbrk
  icu-config
  genrb
  gendict
  derb
  pkgdata
  uconv
  gencfu
  makeconv
  gennorm2
  genccode
  gensprep
  icupkg
  gencmn)

set(icu_data
  Makefile.inc
  pkgdata.inc)

# 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()

  # Find include directory
  list(APPEND icu_include_suffixes "include")
  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}")
    set(ICU_VERSION "${icu_version_string}" PARENT_SCOPE)
    unset(icu_header_str)
    unset(icu_version_string)
  endif()

  if(CMAKE_SIZEOF_VOID_P EQUAL 8)
    # 64-bit binary directory
    set(_bin64 "bin64")
    # 64-bit library directory
    set(_lib64 "lib64")
  endif()


  # Find all ICU programs
  list(APPEND icu_binary_suffixes "${_bin64}" "bin" "sbin")
  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("${cache_var}"
      NAMES "${program}"
      HINTS ${icu_roots}
      PATH_SUFFIXES ${icu_binary_suffixes}
      DOC "ICU ${program} executable"
      NO_PACKAGE_ROOT_PATH
      )
    mark_as_advanced("${cache_var}")
    set("${program_var}" "${${cache_var}}" PARENT_SCOPE)
  endforeach()

  # Find all ICU libraries
  list(APPEND icu_library_suffixes "${_lib64}" "lib")
  set(ICU_REQUIRED_LIBS_FOUND ON)
  set(static_prefix )
  # static icu libraries compiled with MSVC have the prefix 's'
  if(MSVC)
    set(static_prefix "s")
  endif()
  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 "${component_cache}_DEBUG")
    set(component_found "ICU_${component_upcase}_FOUND")
    set(component_found_compat "${component_upcase}_FOUND")
    set(component_libnames "icu${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()

    if(static_prefix)
      unset(static_component_libnames)
      unset(static_component_debug_libnames)
      foreach(component_libname ${component_libnames})
        list(APPEND static_component_libnames
          ${static_prefix}${component_libname})
      endforeach()
      foreach(component_libname ${component_debug_libnames})
        list(APPEND static_component_debug_libnames
          ${static_prefix}${component_libname})
      endforeach()
      list(APPEND component_libnames ${static_component_libnames})
      list(APPEND component_debug_libnames ${static_component_debug_libnames})
    endif()
    find_library("${component_cache_release}"
      NAMES ${component_libnames}
      HINTS ${icu_roots}
      PATH_SUFFIXES ${icu_library_suffixes}
      DOC "ICU ${component} library (release)"
      NO_PACKAGE_ROOT_PATH
      )
    find_library("${component_cache_debug}"
      NAMES ${component_debug_libnames}
      HINTS ${icu_roots}
      PATH_SUFFIXES ${icu_library_suffixes}
      DOC "ICU ${component} library (debug)"
      NO_PACKAGE_ROOT_PATH
      )
    include(${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("${component_found}" ON)
      set("${component_found_compat}" ON)
      list(APPEND ICU_LIBRARY "${${component_cache}}")
    endif()
    mark_as_advanced("${component_found}")
    mark_as_advanced("${component_found_compat}")
    set("${component_cache}" "${${component_cache}}" PARENT_SCOPE)
    set("${component_found}" "${${component_found}}" PARENT_SCOPE)
    set("${component_found_compat}" "${${component_found_compat}}" PARENT_SCOPE)
    if(component_found OR component_found_compat)
      if (ICU_FIND_REQUIRED_${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)

  # Find all ICU data files
  if(CMAKE_LIBRARY_ARCHITECTURE)
    list(APPEND icu_data_suffixes
      "${_lib64}/${CMAKE_LIBRARY_ARCHITECTURE}/icu/${ICU_VERSION}"
      "lib/${CMAKE_LIBRARY_ARCHITECTURE}/icu/${ICU_VERSION}"
      "${_lib64}/${CMAKE_LIBRARY_ARCHITECTURE}/icu"
      "lib/${CMAKE_LIBRARY_ARCHITECTURE}/icu")
  endif()
  list(APPEND icu_data_suffixes
    "${_lib64}/icu/${ICU_VERSION}"
    "lib/icu/${ICU_VERSION}"
    "${_lib64}/icu"
    "lib/icu")
  foreach(data ${icu_data})
    string(TOUPPER "${data}" data_upcase)
    string(REPLACE "." "_" data_upcase "${data_upcase}")
    set(cache_var "ICU_${data_upcase}")
    set(data_var "ICU_${data_upcase}")
    find_file("${cache_var}"
      NAMES "${data}"
      HINTS ${icu_roots}
      PATH_SUFFIXES ${icu_data_suffixes}
      DOC "ICU ${data} data file")
    mark_as_advanced("${cache_var}")
    set("${data_var}" "${${cache_var}}" PARENT_SCOPE)
  endforeach()

  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_${_ICU_component_upcase}_FOUND")
    set(_ICU_imported_target "ICU::${_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()
        if(CMAKE_DL_LIBS AND _ICU_component STREQUAL "uc")
          set_target_properties(${_ICU_imported_target} PROPERTIES
            INTERFACE_LINK_LIBRARIES "${CMAKE_DL_LIBS}")
        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: ${program_lib}=${${program_lib}}")
    unset(program_upcase)
    unset(program_lib)
  endforeach()

  foreach(data IN LISTS icu_data)
    string(TOUPPER "${data}" data_upcase)
    string(REPLACE "." "_" data_upcase "${data_upcase}")
    set(data_lib "ICU_${data_upcase}")
    message(STATUS "${data} data: ${data_lib}=${${data_lib}}")
    unset(data_upcase)
    unset(data_lib)
  endforeach()

  foreach(component IN LISTS ICU_FIND_COMPONENTS)
    string(TOUPPER "${component}" component_upcase)
    set(component_lib "ICU_${component_upcase}_LIBRARIES")
    set(component_found "ICU_${component_upcase}_FOUND")
    set(component_found_compat "${component_upcase}_FOUND")
    message(STATUS "${component} library found: ${component_found}=${${component_found}}")
    message(STATUS "${component} library found (compat name): ${component_found_compat}=${${component_found_compat}}")
    message(STATUS "${component} library: ${component_lib}=${${component_lib}}")
    unset(component_upcase)
    unset(component_lib)
    unset(component_found)
    unset(component_found_compat)
  endforeach()
  message(STATUS "----------------")
endif()

unset(icu_programs)