-QB_SYSTEM_NAME_x86-64 = "qemu-system-x86_64"
-QB_CPU_x86-64 = "-cpu qemu64,+ssse3,+sse4.1,+sse4.2,+popcnt"
-QB_CPU_KVM_x86-64 = "-cpu kvm64 -cpu qemu64,+ssse3,+sse4.1,+sse4.2,+popcnt"
+QB_SYSTEM_NAME:x86-64 = "qemu-system-x86_64"
+QB_CPU:x86-64 = "-cpu qemu64,+ssse3,+sse4.1,+sse4.2,+popcnt"
+QB_CPU_KVM:x86-64 = "-cpu kvm64 -cpu qemu64,+ssse3,+sse4.1,+sse4.2,+popcnt"