Hello,
I am developing an application for a custom nrf52840 board. This application has been building and running without problems for nrf Connect SDK v 2.3.0
However, I recently tried to upgrade to NCS v2.5.0 and I get the below link-time error:
D:/ncs2/toolchains/c57af46cb7/opt/zephyr-sdk/arm-zephyr-eabi/arm-zephyr-eabi/lib/thumb/v7e-m/nofp\libc.a(lib_a-openr.o): in function `_open_r':
openr.c:(.text._open_r+0x14): undefined reference to `_open'
Note that
#define CONFIG_MINIMAL_LIBC_SUPPORTED 1
#define CONFIG_NEWLIB_LIBC_SUPPORTED 1
#define CONFIG_PICOLIBC_SUPPORTED 1
#define CONFIG_NEWLIB_LIBC 1
#define CONFIG_HAS_NEWLIB_LIBC_NANO 1