device: 0.767
architecture: 0.659
graphic: 0.644
semantic: 0.635
network: 0.625
performance: 0.578
i386: 0.551
socket: 0.542
mistranslation: 0.535
x86: 0.488
PID: 0.481
files: 0.469
kernel: 0.467
permissions: 0.466
arm: 0.464
vnc: 0.431
hypervisor: 0.413
ppc: 0.410
peripherals: 0.394
user-level: 0.384
risc-v: 0.382
boot: 0.364
debug: 0.355
register: 0.355
TCG: 0.305
VMM: 0.270
virtual: 0.246
assembly: 0.229
KVM: 0.202

Build succeeds despite flex/bison missing

I just built qemu using a fresh install, and "make" would report success despite messages of "flex: command not found" and "bison: command not found".

I didn't notice any errors, but I don't know whether that's because there's a workaround in case the tools aren't there, or because I didn't exercize the code paths that would fail.

s/install/git clone/

I think we fixed this at one point in time during the past two years ... can we close this issue now, or could you still reproduce this with the latest version of QEMU?

The warning was supposedly removed by https://github.com/qemu/qemu/commit/67953a379ea5 / https://lists.gnu.org/archive/html/qemu-devel/2020-05/msg03980.html

Yes, let's mark this as fixed now.