chroot-git: ignore rpath for bootstrap build.
acl: make it find libattr in XBPS_MASTERDIR for the bootstrap build.
chroot-util-linux: look for headers/libs in XBPS_MASTERDIR for the bootstrap build.
openssl: look for headers/libs in XBPS_MASTERDIR for the bootstrap build.
libarchive: look for headers/libs in XBPS_MASTERDIR for the bootstrap build.
xbps: look for headers/libs in XBPS_MASTERDIR for the bootstrap build.