Way to test 'newlib' on Arduino IDE for ESP8266

[electronicsguy]

Hello,
As mentioned here: newlib, the libc for newlib was merged sometime back in 2016. However, I am unable to use "test_newlib" located here: test_newlib.

It still gives me the error:

C:\...\AppData\Local\Temp\arduino_build_956035\sketch\test_newlib.ino.cpp.o: In function `TEST_FUNC__27':

C:\...\test_newlib/test_newlib.ino:30: undefined reference to `sscanf'

How do we use the newlib and in particular sscanf() within Arduino IDE for esp8266?

[bebo-dot-dev]

d7d98d0 was committed just after the last official 2.3 release. If you want this you'll need to use git code.

[devyte]

@electronicsguy were you able to use sscanf with latest git?

[HarmOtten]

I tested sscanf with v2.4.0-rc2 and it works.
Thanks a lot!