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# vim:ts=4:sw=4:expandtab:autoindent:
#
# The MIT License
#
# Copyright (c) 2008, 2009 Flusspferd contributors (see "CONTRIBUTORS" or
# http://flusspferd.org/contributors.txt)
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
# The above copyright notice and this permission notice shall be included in
# all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
# THE SOFTWARE.
#
Include(CheckFunctionExists)
include(CheckCXXSourceCompiles)
if(ICONV_INCLUDE_DIR)
set(ICONV_FIND_QUIETLY TRUE)
endif()
find_path(ICONV_INCLUDE_DIR iconv.h
HINTS
${CMAKE_PREFIX_PATH}
${ICONV_DIR}
$ENV{ICONV_DIR}
PATH_SUFFIXES include
)
if(NOT ICONV_INCLUDE_DIR STREQUAL "ICONV_INCLUDE_DIR-NOTFOUND")
set(CMAKE_REQUIRED_INCLUDES ${ICONV_INCLUDE_DIR})
check_function_exists(iconv_open ICONV_IN_GLIBC)
endif()
if(NOT ICONV_IN_GLIBC)
find_library(ICONV_LIBRARY
NAMES iconv
HINTS
${CMAKE_PREFIX_PATH}
${ICONV_DIR}
$ENV{ICONV_DIR}
PATH_SUFFIXES lib64 lib
)
set(ICONV_TEST ${ICONV_LIBRARY})
else()
set(ICONV_TEST "In glibc")
endif()
set(CMAKE_REQUIRED_INCLUDES ${ICONV_INCLUDE_DIR})
set(CMAKE_REQUIRED_LIBRARIES ${ICONV_LIBRARY})
check_cxx_source_compiles(
"#include <iconv.h>
int main() {
iconv(iconv_t(-1), 0, 0, 0, 0);
}"
ICONV_COMPILES)
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(ICONV DEFAULT_MSG ICONV_TEST ICONV_INCLUDE_DIR ICONV_COMPILES)
if(ICONV_FOUND)
set(ICONV_LIBRARIES ${ICONV_LIBRARY})
else(ICONV_FOUND)
set(ICONV_LIBRARIES)
endif(ICONV_FOUND)
if(ICONV_FOUND)
set(CMAKE_REQUIRED_INCLUDES ${ICONV_INCLUDE_DIR})
set(CMAKE_REQUIRED_LIBRARIES ${ICONV_LIBRARIES})
if (NOT DEFINED ICONV_ACCEPTS_NONCONST_INPUT)
# Display a useful message first time we come through here
message(STATUS "One (and only one) of the ICONV_ACCEPTS_... tests must pass")
endif()
check_cxx_source_compiles(
"#include <iconv.h>
int main() {
char *p = 0;
iconv(iconv_t(-1), &p, 0, 0, 0);
}"
ICONV_ACCEPTS_NONCONST_INPUT)
check_cxx_source_compiles(
"#include <iconv.h>
int main() {
char const *p = 0;
iconv(iconv_t(-1), &p, 0, 0, 0);
}"
ICONV_ACCEPTS_CONST_INPUT)
if (ICONV_LIBRARY)
list(REMOVE_ITEM CMAKE_REQUIRED_LIBRARIES ${ICONV_LIBRARY})
list(REMOVE_DUPLICATES CMAKE_REQUIRED_LIBRARIES)
endif()
endif()
if(NOT ICONV_ACCEPTS_CONST_INPUT AND NOT ICONV_ACCEPTS_NONCONST_INPUT)
MESSAGE(FATAL_ERROR "Unable to determine iconv() signature")
elseif(ICONV_ACCEPTS_CONST_INPUT AND ICONV_ACCEPTS_NONCONST_INPUT)
MESSAGE(FATAL_ERROR "Unable to determine iconv() signature - both test cases passed!")
endif()
mark_as_advanced(ICONV_LIBRARY ICONV_INCLUDE_DIR)
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