Checking for required M4 macros...
  libtool.m4 not found
  glib-gettext.m4 not found
  intltool.m4 not found
  pkg.m4 not found
***Error***: some autoconf macros required to build avant-panel-menu
  were not found in your aclocal path, or some forbidden
  macros were found.  Perhaps you need to adjust your
  ACLOCAL_FLAGS?

make: *** No targets specified and no makefile found.  Stop.
==> ERROR: Build Failed.  Aborting...
Error: Makepkg was unable to build avant-window-navigator-bzr package.