freewb-deb/cmake/FindLibiconv.cmake

76 lines
2.6 KiB
CMake

# Try to find Libiconv functionality
# Once done this will define
#
# LIBICONV_FOUND - system has Libiconv
# LIBICONV_INCLUDE_DIR - Libiconv include directory
# LIBICONV_LIBRARIES - Libraries needed to use Libiconv
# LIBICONV_SECOND_ARGUMENT_IS_CONST - iconv second argument is const
#
# TODO: This will enable translations only if Gettext functionality is
# present in libc. Must have more robust system for release, where Gettext
# functionality can also reside in standalone Gettext library, or the one
# embedded within kdelibs (cf. gettext.m4 from Gettext source).
# Copyright (c) 2006, Chusslove Illich, <caslav.ilic@gmx.net>
# Copyright (c) 2007, Alexander Neundorf, <neundorf@kde.org>
#
# Redistribution and use is allowed according to the terms of the BSD license.
# For details see the accompanying COPYING-CMAKE-SCRIPTS file.
if(LIBICONV_INCLUDE_DIR AND LIBICONV_LIB_FOUND)
set(Libiconv_FIND_QUIETLY TRUE)
endif(LIBICONV_INCLUDE_DIR AND LIBICONV_LIB_FOUND)
include(CheckCCompilerFlag)
include(CheckCSourceCompiles)
find_path(LIBICONV_INCLUDE_DIR iconv.h)
set(LIBICONV_LIB_FOUND FALSE)
if(LIBICONV_INCLUDE_DIR)
include(CheckFunctionExists)
check_function_exists(iconv_open LIBICONV_LIBC_HAS_ICONV_OPEN)
if (LIBICONV_LIBC_HAS_ICONV_OPEN)
set(LIBICONV_LIBRARIES)
set(LIBICONV_LIB_FOUND TRUE)
else (LIBICONV_LIBC_HAS_ICONV_OPEN)
find_library(LIBICONV_LIBRARIES NAMES iconv)
if(LIBICONV_LIBRARIES)
set(LIBICONV_LIB_FOUND TRUE)
endif(LIBICONV_LIBRARIES)
endif (LIBICONV_LIBC_HAS_ICONV_OPEN)
if (LIBICONV_LIB_FOUND)
check_c_compiler_flag("-Werror" ICONV_HAVE_WERROR)
set (CMAKE_C_FLAGS_BACKUP "${CMAKE_C_FLAGS}")
if(ICONV_HAVE_WERROR)
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
endif(ICONV_HAVE_WERROR)
set(CMAKE_REQUIRED_INCLUDES "${LIBICONV_INCLUDE_DIR}")
set(CMAKE_REQUIRED_LIBRARIES "${LIBICONV_LIBRARIES}")
check_c_source_compiles("
#include <iconv.h>
int main(){
iconv_t conv = 0;
const char* in = 0;
size_t ilen = 0;
char* out = 0;
size_t olen = 0;
iconv(conv, &in, &ilen, &out, &olen);
return 0;
}
" LIBICONV_SECOND_ARGUMENT_IS_CONST )
set(CMAKE_REQUIRED_INCLUDES)
set(CMAKE_REQUIRED_LIBRARIES)
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS_BACKUP}")
endif(LIBICONV_LIB_FOUND)
endif(LIBICONV_INCLUDE_DIR)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(Libiconv DEFAULT_MSG LIBICONV_INCLUDE_DIR LIBICONV_LIB_FOUND)
mark_as_advanced(LIBICONV_INCLUDE_DIR LIBICONV_LIBRARIES LIBICONV_LIBC_HAS_ICONV_OPEN LIBICONV_LIB_FOUND)