Release version issue snprintf

[vit1251]

Expected behavior

DEPEND: CC app/libc/snprintf.c
snprintf.c:41:35: fatal error: c99-snprintf/snprintf.c: No such file or directory
#include "c99-snprintf/snprintf.c"
^
compilation terminated.
CC app/libc/snprintf.c
snprintf.c:41:35: fatal error: c99-snprintf/snprintf.c: No such file or directory
#include "c99-snprintf/snprintf.c"
^
compilation terminated.

[th3worst4]

I've cloned the snprintf.c file from this repository https://github.com/weiss/c99-snprintf/blob/master/snprintf.c at the required folder. It solved the "No such file or directory" but now I'm having linking errors

/home/caioc/nodemcu-firmware/sdk/esp_iot_sdk_v3.0-e4434aa/lib/libc.a(lib_a-svfprintf.o):(.literal+0x10): undefined reference to `_malloc_r'

[vit1251]

Look like you get snprintf implementation work with heap. I acutally does not know ESP NO-OS is provide malloc, free on heap inside. It may be need to implement or use sprintf without heap allocation.

In any case look like 2 years question stil not answered and I think project dead.