what is different between the following type i get qemu-kvm ? boths are use centos 6.4.
yum install qemu-kvm ,then show the version:
[root@centos6 qemu-kvm]# /usr/local/bin/qemu-system-x86_64 --version
QEMU emulator version 1.2.50 (qemu-kvm-devel), Copyright (c) 2003-2008 Fabrice Bellard
get the source code and build it by gcc.
[root@centos6 qemu-kvm]# /usr/libexec/qemu-kvm --version
QEMU PC emulator version 0.12.1 (qemu-kvm-0.12.1.2), Copyright (c) 2003-2008 Fabrice Bellard