Update platformio.ini

Support for enable / disable exceptions code in firmware for esp8266 core 2.5.0 (stage) or up

Author: Jason2866

platformio.ini

@@ -80,6 +80,15 @@ build_flags =
 ; VTABLES in IRAM
 ;  -DVTABLES_IN_IRAM
 
+; if using esp8266 core 2.5.0 (stage) or up
+; enable one option set -> No exception recommended
+; No exception code in firmware
+;  -fno-exceptions
+;  -lstdc++-nox
+; Exception code in firmware /needs much space! 90k
+;  -fexceptions
+;  -lstdc++  
+
 ; *** Serial Monitor options
 monitor_speed = 115200