Chat here about code rewrites, mods, etc... with respect to the github project https://github.com/esp8266/Arduino

Moderator: igrr

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By martinayotte
#62816 Oh ! I see !
since you still have "undefined reference to dhcp_get_ntpserver", this is because the lwip_gcc.a is not part of arduino build process, you need to compile it manually before the sketch.
(Make sure to do a backup first ...)
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By quiet_coder
#62817 Got it, thank you. Not being familiar with building these for Arduino (and especially on Windows) is there documentation somewhere to describe how to properly do so? I currently only have what is provided via the Arduino IDE.