semantic: 0.157 device: 0.146 other: 0.137 graphic: 0.092 vnc: 0.089 PID: 0.072 permissions: 0.049 debug: 0.048 files: 0.045 performance: 0.041 network: 0.039 socket: 0.039 boot: 0.035 KVM: 0.011 other: 0.161 files: 0.145 debug: 0.108 semantic: 0.091 PID: 0.083 device: 0.082 network: 0.071 performance: 0.058 socket: 0.050 boot: 0.047 vnc: 0.033 permissions: 0.029 graphic: 0.027 KVM: 0.016 v2.8.0 won't compile if g++ compiler doesn't understand "-fstack-protector-strong" For example, Ubuntu Trusty (LTS 14.04) uses g++ v4.8.5. Compilation fails with a syntax error saying that the ""-fstack-protector-strong" option in g++ is unrecognized. Instead, under Ubuntu Xenial (LTS 16.04), the g++ compiler is v5.4.0 and the compilation goes on smoothly. Could you provide the command you've used? I tried `CC=gcc-4.8 ./configure --enable-stack-protector && make` in Ubuntu 14.04 and qemu v2.8.0. It didn't set `-fstack-protector-strong` flag, only `-fstack-protector-all`. Which version of gcc (i.e. normal C-compiler, not g++) did you use here? Can you still reproduce this issue with the latest release of QEMU? [Expired for QEMU because there has been no activity for 60 days.]