AUDIO_F32SYS not defined? build fail after fresh install_deps

Hi, I’m compiling Blender, and right after install_deps ran with --with-all in default location, Blender compilation fails, with error like this:

Strange, it worked for a long time, but for some weeks I did not compile Blender. Obviously install_deps is not enough. Should I manually add such definitions somewhere? Or is there a newer SDL lib dev package to install?
My system is kubuntu, 19.10 (Eoan Ermine), based on plasma 5.16.5.


The current recommended method of building on on Linux is to use the precompiled libraries, is there a reason you are using instead?

Download the libraries (follow the wiki instructions, and create a new build using the precompiled libs (either update CMake or remove the build_linux folder). That should solve the any issues with building.

sudo apt-get install libsdl2-dev
to fixed this error