Hello,

Since the last commit (ec4f53e) I have an error with a sketch that was working before:

/Users/marco/Downloads/Arduino/build/macosx/work/Arduino.app/Contents/Java/hardware/esp8266com/esp8266/cores/esp8266/libc_replacements.c: At top level:
/Users/marco/Downloads/Arduino/build/macosx/work/Arduino.app/Contents/Java/hardware/esp8266com/esp8266/cores/esp8266/libc_replacements.c:166:25: error: conflicting types for 'strtok_r'
char* ICACHE_FLASH_ATTR strtok_r(char * str, const char * delimiters, char ** temp) {
^
/Users/marco/Downloads/Arduino/build/macosx/work/Arduino.app/Contents/Java/hardware/esp8266com/esp8266/cores/esp8266/libc_replacements.c:163:12: note: previous implicit declaration of 'strtok_r' was here
return strtok_r(str, delimiters, NULL);
^
Error compiling.

Any idea about this issue? Thanks