Compiling issue with Arduino IDE and ESP8266

[donetdisturb]

Hello @invandy, thank you for your great work.

I have a compiling issue with Arduino IDE 2.3.7 and NodeMCU 1.0 board (same as Generic ESP8266)
With Arduino Uno boards it's ok, it works.
I try to compile an untouched transmitter.ino or receiver.ino, and the logs are:

c:\Users\luigi\Documents\Arduino\libraries\Oregon_NR\Oregon_NR.cpp:2178:25: warning: extra tokens at end of #ifdef directive
 2178 | #ifdef ADD_SENS_SUPPORT == 1
      |                         ^~
c:\Users\luigi\Documents\Arduino\libraries\Oregon_NR\Oregon_NR.cpp: In member function 'void Oregon_NR::capture(bool)':
c:\Users\luigi\Documents\Arduino\libraries\Oregon_NR\Oregon_NR.cpp:855:1: warning: 'or' of unmatched not-equal tests is always 1
  855 | }
      | ^
c:\Users\luigi\Documents\Arduino\libraries\Oregon_NR\Oregon_NR.cpp: In member function 'int Oregon_NR::get_synchro_pos(byte*, int)':
c:\Users\luigi\Documents\Arduino\libraries\Oregon_NR\Oregon_NR.cpp:1747:1: error: control reaches end of non-void function [-Werror=return-type]
 1747 | }
      | ^
cc1plus.exe: some warnings being treated as errors
exit status 1

Compilation error: exit status 1

Any idea? Thank you!