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# Distributed under the OSI-approved BSD 3-Clause License. See accompanying
# file Copyright.txt or https://cmake.org/licensing for details.
#[=======================================================================[.rst:
FindIntl
--------
.. versionadded:: 3.2
Find the Gettext libintl headers and libraries.
This module reports information about the Gettext libintl
installation in several variables.
.. variable:: Intl_FOUND
True if libintl is found.
.. variable:: Intl_INCLUDE_DIRS
The directory containing the libintl headers.
.. variable:: Intl_LIBRARIES
The intl libraries to be linked.
.. variable:: Intl_VERSION
.. versionadded:: 3.21
The version of intl found (x.y.z)
.. variable:: Intl_VERSION_MAJOR
.. versionadded:: 3.21
The major version of intl
.. variable:: Intl_VERSION_MINOR
.. versionadded:: 3.21
The minor version of intl
.. variable:: Intl_VERSION_PATCH
.. versionadded:: 3.21
The patch version of intl
.. versionadded:: 3.20
This module defines :prop_tgt:`IMPORTED` target ``Intl::Intl``.
The following cache variables may also be set:
.. variable:: Intl_INCLUDE_DIR
The directory containing the libintl headers
.. variable:: Intl_LIBRARY
The libintl library (if any)
.. variable:: Intl_HAVE_GETTEXT_BUILTIN
.. versionadded:: 3.20
True if gettext is in the C library
.. variable:: Intl_HAVE_DCGETTEXT_BUILTIN
.. versionadded:: 3.20
True if dcgettext is in the C library
.. variable:: Intl_IS_BUILTIN
.. versionadded:: 3.20
whether intl is a part of the C library determined from the result of
Intl_HAVE_GETTEXT_BUILTIN and Intl_HAVE_DCGETTEXT_BUILTIN
.. note::
On some platforms, such as Linux with GNU libc, the gettext
functions are present in the C standard library and libintl
is not required. ``Intl_LIBRARIES`` will be empty in this
case.
.. note::
Some libintl implementations don't embed the version number in their header files.
In this case the variables ``Intl_VERSION*`` will be empty.
.. note::
If you wish to use the Gettext tools (``msgmerge``,
``msgfmt``, etc.), use :module:`FindGettext`.
#]=======================================================================]
# Written by Roger Leigh <rleigh@codelibre.net>
include(${CMAKE_CURRENT_LIST_DIR}/CMakePushCheckState.cmake)
include(${CMAKE_CURRENT_LIST_DIR}/CheckSymbolExists.cmake)
# Check if we have libintl is a part of libc
cmake_push_check_state(RESET)
set(CMAKE_REQUIRED_QUIET TRUE)
check_symbol_exists(gettext libintl.h Intl_HAVE_GETTEXT_BUILTIN)
check_symbol_exists(dcgettext libintl.h Intl_HAVE_DCGETTEXT_BUILTIN) # redundant check
cmake_pop_check_state()
if(Intl_HAVE_GETTEXT_BUILTIN AND Intl_HAVE_DCGETTEXT_BUILTIN)
set(Intl_IS_BUILTIN TRUE)
else()
set(Intl_IS_BUILTIN FALSE)
endif()
# Find include directory
find_path(Intl_INCLUDE_DIR
NAMES "libintl.h"
DOC "libintl include directory")
mark_as_advanced(Intl_INCLUDE_DIR)
# Find all Intl libraries
if(NOT Intl_IS_BUILTIN)
set(Intl_LIBRARY_NAMES "intl" "libintl")
else()
set(Intl_LIBRARY_NAMES "c")
endif()
find_library(Intl_LIBRARY ${Intl_LIBRARY_NAMES} NAMES_PER_DIR
DOC "intl library (potentially the C library)")
mark_as_advanced(Intl_LIBRARY)
# NOTE: glibc's libintl.h does not define LIBINTL_VERSION
if(Intl_INCLUDE_DIR AND NOT Intl_IS_BUILTIN)
file(STRINGS ${Intl_INCLUDE_DIR}/libintl.h Intl_VERSION_DEFINE REGEX "LIBINTL_VERSION (.*)")
if(Intl_VERSION_DEFINE MATCHES "(0x[A-Fa-f0-9]+)")
set(Intl_VERSION_NUMBER "${CMAKE_MATCH_1}")
# encoding -> version number: (major<<16) + (minor<<8) + patch
math(EXPR Intl_VERSION_MAJOR "${Intl_VERSION_NUMBER} >> 16" OUTPUT_FORMAT HEXADECIMAL)
math(EXPR Intl_VERSION_MINOR "(${Intl_VERSION_NUMBER} - (${Intl_VERSION_MAJOR} << 16)) >> 8" OUTPUT_FORMAT HEXADECIMAL)
math(EXPR Intl_VERSION_PATCH "${Intl_VERSION_NUMBER} - ((${Intl_VERSION_MAJOR} << 16) + (${Intl_VERSION_MINOR} << 8))" OUTPUT_FORMAT HEXADECIMAL)
math(EXPR Intl_VERSION_MAJOR "${Intl_VERSION_MAJOR}" OUTPUT_FORMAT DECIMAL)
math(EXPR Intl_VERSION_MINOR "${Intl_VERSION_MINOR}" OUTPUT_FORMAT DECIMAL)
math(EXPR Intl_VERSION_PATCH "${Intl_VERSION_PATCH}" OUTPUT_FORMAT DECIMAL)
set(Intl_VERSION "${Intl_VERSION_MAJOR}.${Intl_VERSION_MINOR}.${Intl_VERSION_PATCH}")
endif()
unset(Intl_VERSION_DEFINE)
unset(Intl_VERSION_NUMBER)
endif()
include(${CMAKE_CURRENT_LIST_DIR}/FindPackageHandleStandardArgs.cmake)
FIND_PACKAGE_HANDLE_STANDARD_ARGS(Intl
FOUND_VAR Intl_FOUND
REQUIRED_VARS Intl_LIBRARY Intl_INCLUDE_DIR
VERSION_VAR Intl_VERSION
FAIL_MESSAGE "Failed to find Gettext libintl")
if(Intl_FOUND)
set(Intl_INCLUDE_DIRS "${Intl_INCLUDE_DIR}")
set(Intl_LIBRARIES "${Intl_LIBRARY}")
if(NOT TARGET Intl::Intl)
add_library(Intl::Intl INTERFACE IMPORTED)
set_target_properties(Intl::Intl PROPERTIES
INTERFACE_INCLUDE_DIRECTORIES "${Intl_INCLUDE_DIRS}"
INTERFACE_LINK_LIBRARIES "${Intl_LIBRARIES}")
endif()
endif()
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