-CXX_GLOBAL_CSTD)
-
-#check_cxx_source_compiles(
-# "
-# #include <iconv.h>
-# // this declaration will fail when there already exists a non const char** version which returns size_t
-# double iconv(iconv_t cd, char **inbuf, size_t *inbytesleft, char **outbuf, size_t *outbytesleft);
-# int main() { return 0; }
-# "
-#HAVE_ICONV_CONST)