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# - Find iconv
# Find the iconv (character set conversion) library
#
# This module defines the following variables:
# ICONV_FOUND - True if library and include directory are found
# If set to TRUE, the following are also defined:
# ICONV_INCLUDE_DIRS - The directory where to find the header file
# ICONV_LIBRARIES - Where to find the library file
# ICONV_SECOND_ARGUMENT_IS_CONST - The second argument for iconv() is const
#
# For conveniance, these variables are also set. They have the same values
# than the variables above. The user can thus choose his/her prefered way
# to write them.
# ICONV_LIBRARY
# ICONV_INCLUDE_DIR
#
# This file is in the public domain
find_path(ICONV_INCLUDE_DIRS NAMES iconv.h
DOC "The iconv include directory")
find_library(ICONV_LIBRARIES NAMES iconv libiconv libiconv-2 c
DOC "The iconv library")
# Use some standard module to handle the QUIETLY and REQUIRED arguments, and
# set ICONV_FOUND to TRUE if these two variables are set.
include(FindPackageHandleStandardArgs)
find_package_handle_standard_args(Iconv REQUIRED_VARS ICONV_LIBRARIES ICONV_INCLUDE_DIRS)
# Check if the prototype is
# size_t iconv(iconv_t cd, char** inbuf, size_t* inbytesleft,
# char** outbuf, size_t* outbytesleft);
# or
# size_t iconv (iconv_t cd, const char** inbuf, size_t* inbytesleft,
# char** outbuf, size_t* outbytesleft);
if(ICONV_FOUND)
include(CheckCXXSourceCompiles)
# Set the parameters needed to compile the following code.
set(CMAKE_REQUIRED_INCLUDES ${ICONV_INCLUDE_DIRS})
set(CMAKE_REQUIRED_LIBRARIES ${ICONV_LIBRARIES})
check_cxx_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;}"
ICONV_SECOND_ARGUMENT_IS_CONST)
# Compatibility for all the ways of writing these variables
set(ICONV_LIBRARY ${ICONV_LIBRARIES} PARENT_SCOPE)
set(ICONV_INCLUDE_DIR ${ICONV_INCLUDE_DIRS} PARENT_SCOPE)
set(ICONV_FOUND ${ICONV_FOUND} PARENT_SCOPE)
endif()
mark_as_advanced(ICONV_INCLUDE_DIRS ICONV_LIBRARIES ICONV_SECOND_ARGUMENT_IS_CONST)
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