CMAKE_OBJECT_PATH_MAX and path length issues

[skanky]

I can't find any resource on path length limits for cmake with esp-idf and VSCode.

I should be able to use long paths with cmake on windows by setting registry key HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\FileSystem LongPathsEnabled to 1, which I have and rebooted my machine.

However when I build I still get an error with explanation "The maximum full path to an object file is 250
characters (see CMAKE_OBJECT_PATH_MAX)."

I can find no CMAKE_OBJECT_PATH_MAX setting, if I add it to my CMakeLists.txt and set it to say 260 it is ignored and the same error persists.

How can ESP-IDF be made to work with long file paths on Windows?
Thanks
Adam

[crnewton]

unfortunately the same problem, no solution .

I hope this bumps this issue and someone can give us some insight.

[ESP_igrr]

Which IDF version and which CMake version are you folks using?

IIRC this was solved in CMake 3.23 and later by https://gitlab.kitware.com/cmake/cmake/ ... e4007c477a.

[skanky]

In November I was a brand new install, the most up-to-date versions of everything were downloaded and used.

[3x67az]

In November I was a brand new install, the most up-to-date versions of everything were downloaded and used.

Any solution you were able to find?

[skanky]

No, had nothing back from Espressif here so had to work around it and have done ever since

[Anurag Paul]

Any Update Regarding the issue. I am also facing the same thing.