ESP32 Forum

With the old GNU Make build system, compiling my projects with would drastically reduce my build time from minutes to seconds. How can I do this with the idf.py CMake build system?

Hi,

I'd also like to know too please.

Thanks

CMake automatically does parallel builds.

Even faster build times can be achieved by using ccache. This can be done by:

1. passing argument `--ccache` to idf.py everytime you build
2. set CCACHE_ENABLE=1 before project() call in project CMakeLists.txt like so You need to have ccache installed on your system, however.

cool, thanks, ccache is working a treat on macOS using homebrew.