Thank you very much @hudakz for this example !
It reduces the build time of the official mbed blinky from 12min to 1min on my side, using MBED 6.6.
About Netsocket part, there is no librairies folder in mbed-os root folder, did you mean:
mbed-os/connectivity/libraries/mbed-coap/*
mbed-os/connectivity/libraries/ppp/*
instead ?
And I think there is a missing s for test in the line:
mbed-os/platform/test/*
Thanks again, this is the best .mbedignore file I’ve seen so far 