--with-hal-includes="-DDBUS_API_SUBJECT_TO_CHANGE -I/usr/include/hal \
        -I/usr/include/dbus-1.0 -I/usr/lib/dbus-1.0/include"
--with-hal-libs="-lhal -ldbus-1 -lpthread"
--with-hal-user="haldaemon"
--with-hal-device-match-key="info.bus"
--with-hal-callouts-path="${libdir}/hal"
--with-hal-fdi-path="${datarootdir}/hal/fdi/information/20thirdparty"

If system doesn’t have pkg-config or it fails to provides hints for some of the settings that are needed to set it up properly and the build in defaults are not right, you can specify the right variables here.