[libvirt] qemud/.libs/libvirtd?

Hi, I added some new code to libvirt.c, and recompile. However, when "make install". qemud/.libs/libvirtd is installed but not qemud/libvirtd. Why? Looks like a bug? The problem is that qemud/libvirtd has my new code, but not qemud/.libs/libvirtd! So "make install" installs the old binary, which I dont know where it is from. (Perhaps from the first compilation?) I am not familiar with the autoconf Makefile, and cannot figure it out why it is working this way. Many thanks, Jun