2398443_en-US

MCUX 25.6.136, newlib-nano, & swprintf undefined

I'm experiencing an undefined reference to swprintf with MCUX 25.6.136 & newlib-nano. I've tried newlib as well and same result.

After some digging I've found an upstream issue with newlib-nano/newlib: https://sourceware.org/pipermail/newlib/2024/021012.html

I'm wondering if NXP can corroborate my guess that the bundled version of newlib-nano contains this issue. If that's the case Is a fix via incorporating a newer version of newlib-nano/newlib on the agenda?

- Connor

Re: MCUX 25.6.136, newlib-nano, & swprintf undefined

Here's 2 projects.

- One from MCUXv11.9.1.2170 where swprintf is defined and the project compiles. (1064)

- One from MCUXv25.6.136 where swprintf is undefined and the project doesn't compile. (1166)

Re: MCUX 25.6.136, newlib-nano, & swprintf undefined

Hello @Condy

Thanks for your question.

Could you please send a simple project to reproduce the issue. Thank you.

Alice