Find iconv.

CMakeLists.txt

@@ -737,6 +737,37 @@ int main(int argc, char** argv) {
   return cmkcheckweak == NULL;
 }" HAVE_WEAK_SYMBOLS)
 
+IF(NOT ICONV_INCLUDE_DIR OR NOT ICONV_LIBRARIES)
+	FIND_PATH(ICONV_INCLUDE_DIR iconv.h)
+	FIND_LIBRARY(ICONV_LIBRARIES NAMES iconv libiconv libiconv-2 c)
+	IF(ICONV_INCLUDE_DIR AND ICONV_LIBRARIES)
+		SET(ICONV_FOUND TRUE)
+	ENDIF(ICONV_INCLUDE_DIR AND ICONV_LIBRARIES)
+	LIST(APPEND CMAKE_REQUIRED_INCLUDES ${ICONV_INCLUDE_DIR})
+	LIST(APPEND CMAKE_REQUIRED_LIBRARIES ${ICONV_LIBRARIES})
+
+	IF(ICONV_FOUND)
+		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)
+	ENDIF(ICONV_FOUND)
+
+	IF(ICONV_FOUND)
+		MESSAGE(STATUS "Found Iconv: ${ICONV_LIBRARIES}")
+	ELSE(ICONV_FOUND)
+		MESSAGE(FATAL_ERROR "Could not find Iconv")
+	ENDIF(ICONV_FOUND)
+ENDIF(NOT ICONV_INCLUDE_DIR OR NOT ICONV_LIBRARIES)
+
 
 # Check macros
 CHECK_SYMBOL_EXISTS(PATH_MAX limits.h HAVE_PATH_MAX)