LWIP2 support on ESP8266 about makeesparduino HOT 11 CLOSED

Well doesn't this work automatically? The library liblwip2.a is prebuilt and everything controlled via platform.txt is included.

Or do you mean that we should include rules for rebuilding the lwip2 library from the git submodule?

BTW, looks like it was the changes in this commit that broke the previous version of makeEspArduino 😏

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when compiling with VERBOSE=1 and looking at the linking stage i see:

-lhal -lphy -lpp -lnet80211 -llwip_gcc -lwpa -lcrypto -lmain -lwps -laxtls -lespnow -lsmartconfig -lairkiss -lmesh -lwpa2 -lstdc++ -lm -lc -lgcc

but the lwip2 lib is in the archive liblwip2.a so the I think LWIP2 support is opt-in at least for now. no?

ah and no, i didn't mean to compile the lib from source, even though it could be done.

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Also the emitted include path for the headers is in my case -I../../Arduino-ESP8266/tools/sdk/lwip/include, but it would have to be -I../../Arduino-ESP8266/tools/sdk/lwip2/include.

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Ok, I guess this is intended to be controlled via the property build.lwip_include for compilations but I can't find any references in the link command.

Nevertheless once I have figured this out there will be an optional LWIP_VERSION or alike which can be used to control this in makeEspArduino

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I have seen build.lwip_lib=-llwip_gcc

do you mean that?

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I guess so, I have to test in Arduino IDE to check

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Fixed in latest commit. Use the variable LWIP_VARIANT, more info in the commit message
Thanks for keeping an eye on what happens in esp8266/Arduino 😃

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Thanks, now I can switch between different LWIP VERSION 1 variants (I tested all 4 of them), but still non of those gave me the LWIP VERSION 2.

For LWIP 2 we would need to change the LWIP include path to [..]/sdk/lwip2/include and link against -llwip2.a

Maybe we need an additional control varaible like the LWIP_VERSION=2 you mentioned above?

Thanks for your great work! Maintaining this is a never ending game of whac-a-mole! :-D

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Strange, the settings for "open" (which is the default) are

generic.menu.LwIPVariant.open=v2
generic.menu.LwIPVariant.open.build.lwip_include=lwip2/include
generic.menu.LwIPVariant.open.build.lwip_lib=-llwip2

And this gives lwip2 when I build

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OH, LOL, c'mon.. seriously?

I just did not pull. sorry for the confusion! all is well! (as usual) 👍

thanks! closing!

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