IAR Embedded Workbench for RX 5.20IAR C/C++ DevelopmentLinker optionsDescriptions of linker options‑‑printf_multibytes‑‑printf_multibytesIn this section: Syntax‑‑printf_multibytesDescriptionUse this option to make the linker automatically select a printf formatter that supports multibytes.CautionProject>Options>General Options>Library options 1>Printf formatter