You can avoid testing gnulib (not very interesting anyway) by
running:
./configure --disable-gnulib-tests
I personaly do not care, but in case i make a libguestfs-git PKBUILD,
I want everything be OK.
I just realised than I followed the libguestfs PKGBUILD, but NO
virt-p2v and virt-v2v binaries are installed in /usr/bin.
Shame. I am rewriting the git PKGBUILD.