cmake DCMTK_STDLIBC_ICONV_HAS_DEFAULT_ENCODING examples

DCMTK/dcmtk CMake/GenerateDCMTKConfigure.cmake :1070

message(FATAL_ERROR "When using DCMTK_NO_TRY_RUN, set DCMTK_STDLIBC_ICONV_HAS_DEFAULT_ENCODING")