khanat-opennel-code/code/CMakeModules/FindIconv.cmake

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# - Try to find Iconv
# Once done this will define
#
# ICONV_FOUND - system has Iconv
# ICONV_INCLUDE_DIR - the Iconv include directory
# ICONV_LIBRARIES - Link these to use Iconv
# ICONV_SECOND_ARGUMENT_IS_CONST - the second argument for iconv() is const
#
include(CheckCCompilerFlag)
include(CheckCSourceCompiles)
IF (ICONV_INCLUDE_DIR AND ICONV_LIBRARIES)
# Already in cache, be silent
SET(ICONV_FIND_QUIETLY TRUE)
ENDIF (ICONV_INCLUDE_DIR AND ICONV_LIBRARIES)
FIND_PATH(ICONV_INCLUDE_DIR iconv.h HINTS /sw/include/ PATHS /opt/local)
FIND_LIBRARY(ICONV_LIBRARIES NAMES iconv libiconv c PATHS /opt/local)
IF(ICONV_INCLUDE_DIR AND ICONV_LIBRARIES)
SET(ICONV_FOUND TRUE)
ENDIF(ICONV_INCLUDE_DIR AND ICONV_LIBRARIES)
set(CMAKE_REQUIRED_INCLUDES ${ICONV_INCLUDE_DIR})
set(CMAKE_REQUIRED_LIBRARIES ${ICONV_LIBRARIES})
IF(ICONV_FOUND)
check_c_compiler_flag("-Werror" ICONV_HAVE_WERROR)
set (CMAKE_C_FLAGS_BACKUP "${CMAKE_C_FLAGS}")
if(ICONV_HAVE_WERROR)
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -Werror")
endif(ICONV_HAVE_WERROR)
check_c_source_compiles("
#include <iconv.h>
int main(){
iconv_t conv = 0;
const char* in = 0;
size_t ilen = 0;
char* out = 0;
size_t olen = 0;
iconv(conv, &in, &ilen, &out, &olen);
return 0;
}
" ICONV_SECOND_ARGUMENT_IS_CONST )
set (CMAKE_C_FLAGS "${CMAKE_C_FLAGS_BACKUP}")
ENDIF(ICONV_FOUND)
set(CMAKE_REQUIRED_INCLUDES)
set(CMAKE_REQUIRED_LIBRARIES)
IF(ICONV_FOUND)
IF(NOT ICONV_FIND_QUIETLY)
MESSAGE(STATUS "Found Iconv: ${ICONV_LIBRARIES}")
ENDIF(NOT ICONV_FIND_QUIETLY)
ELSE(ICONV_FOUND)
IF(Iconv_FIND_REQUIRED)
MESSAGE(FATAL_ERROR "Could not find Iconv")
ENDIF(Iconv_FIND_REQUIRED)
ENDIF(ICONV_FOUND)
MARK_AS_ADVANCED(
ICONV_INCLUDE_DIR
ICONV_LIBRARIES
ICONV_SECOND_ARGUMENT_IS_CONST
)