summaryrefslogtreecommitdiff
path: root/cmake/FindICU.cmake
blob: 471e43c1d9708b6125da792f21d5d1a4684a3e5d (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
#[=======================================================================[.rst:
FindICU
-------

Finds components of the ICU library.

Accepted components are: uc, i18n, le, lx, io

Result Variables
^^^^^^^^^^^^^^^^

This will define the following variables:

``ICU_FOUND``
  True if components of ICU library are found.
``ICU_VERSION``
  The version of the ICU library which was found.
``ICU_<c>_FOUND``
  True if the system has the <c> component of ICU library.
``ICU_<c>_INCLUDE_DIRS``
  Include directories needed to use the <c> component of ICU library.
``ICU_<c>_LIBRARIES``
  Libraries needed to link to the <c> component of ICU library.

#]=======================================================================]

find_package(PkgConfig QUIET)

set(ICU_KNOWN_COMPONENTS "uc" "i18n" "le" "lx" "io")

foreach(MOD_NAME IN LISTS ICU_FIND_COMPONENTS)
    if (NOT MOD_NAME IN_LIST ICU_KNOWN_COMPONENTS)
        message(FATAL_ERROR "Unknown ICU component: ${MOD_NAME}")
    endif()
    pkg_check_modules(PC_ICU_${MOD_NAME} QUIET icu-${MOD_NAME})

    # Check the libraries returned by pkg-config really exist.
    unset(PC_LIBRARIES)
    foreach(LIBRARY IN LISTS PC_ICU_${MOD_NAME}_LIBRARIES)
        unset(PC_LIBRARY CACHE)
        find_library(PC_LIBRARY NAMES ${LIBRARY})
        if (NOT PC_LIBRARY)
            unset(PC_ICU_${MOD_NAME}_FOUND)
        endif()
        list(APPEND PC_LIBRARIES ${PC_LIBRARY})
    endforeach()
    unset(PC_LIBRARY CACHE)

    if (${PC_ICU_${MOD_NAME}_FOUND})
        set(ICU_COMPONENT_FOUND TRUE)
        set(ICU_${MOD_NAME}_FOUND TRUE)
        set(ICU_${MOD_NAME}_LIBRARIES ${PC_LIBRARIES})
        set(ICU_${MOD_NAME}_INCLUDE_DIRS ${PC_ICU_${MOD_NAME}_INCLUDE_DIRS})
        set(ICU_VERSION ${PC_ICU_${MOD_NAME}_VERSION})
    endif()
endforeach()

include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(ICU
    FOUND_VAR ICU_FOUND
    REQUIRED_VARS ICU_COMPONENT_FOUND
    VERSION_VAR ICU_VERSION
    HANDLE_COMPONENTS
)