fatal error: ../../../lwip/src/include/lwip/inet.h: No such file or directory

[filipecalegario]

I'm trying to compile libmapper_arduino following the instructions in README.md.
After running make and waiting for a little, I received the following error:

[mathiasbredholt]

Thanks for posting the error. I will look into it, I'm not very experienced in writing Makefiles so I'm probably doing something wrong.

[mathiasbredholt]

After spending most of the day understanding this error, I realized that I changed that particular file some weeks ago.
If you change the file inet.h from

#ifndef INET_H_
#define INET_H_

#include "../../../lwip/src/include/lwip/inet.h"

#endif /* INET_H_ */

to

#ifndef INET_H_
#define INET_H_

#include "lwip/inet.h"

#endif /* INET_H_ */

it should work. I issued a pull request to the main arduino-esp32 repository.

[mathiasbredholt]

Let's wait with closing the issue until the arduino-esp32 core gets updated with the fix.

[mathiasbredholt]

espressif/arduino-esp32#3425

[mathiasbredholt]

This issue has been resolved in ESP-IDF