device: 0.856
architecture: 0.738
performance: 0.607
register: 0.579
files: 0.568
graphic: 0.543
mistranslation: 0.533
vnc: 0.506
risc-v: 0.504
ppc: 0.504
user-level: 0.488
semantic: 0.484
hypervisor: 0.469
network: 0.450
virtual: 0.449
permissions: 0.448
arm: 0.424
socket: 0.402
boot: 0.349
debug: 0.326
kernel: 0.324
PID: 0.319
TCG: 0.288
peripherals: 0.284
assembly: 0.213
x86: 0.208
VMM: 0.187
KVM: 0.076
i386: 0.071

build fails on CLOCK_MONOTONIC

Moc OS X.11.6 El Capitan

build fails on this 

/Users/alba/Downloads/qemu-5.0.0-rc1/include/qemu/timer.h:843:9: warning: 
      implicit declaration of function 'clock_gettime' is invalid in C99
      [-Wimplicit-function-declaration]
        clock_gettime(CLOCK_MONOTONIC, &ts);
        ^
/Users/alba/Downloads/qemu-5.0.0-rc1/include/qemu/timer.h:843:23: error: use of
      undeclared identifier 'CLOCK_MONOTONIC'
        clock_gettime(CLOCK_MONOTONIC, &ts);
                      ^
1 warning and 1 error generated.
make: *** [trace/control.o] Error 1

Hi; I'm afraid that OSX 10.11 "El Capitan" isn't a supported build platform for QEMU. Our official support policy is that we support the two most recent versions (currently 10.14 Mojave and 10.15 Catalina); QEMU may also run on some earlier OSX versions we don't support, but we don't guarantee that or carry workarounds for missing functionality on those earlier versions. In this particular case, CLOCK_MONOTONIC was added to OSX 10.12 "Sierra".