Can you please have a look if virtual/awk is sufficient or if gawk is needed.
configure looks for awk and prefers gawk, but also accepts nawk. Only wm-icons-config uses awk, but only within the posix standard, so virtual/awk should be fine.
+ 28 Feb 2013; Christoph Junghans <ottxor@gentoo.org> wm-icons-0.4.0.ebuild, + wm-icons-0.4.0_pre1-r1.ebuild: + switched to virtual/awk (bug #455692)