Can you please have a look if virtual/awk is sufficient or if gawk is needed.
awk is used in "p", but only in posix conform ways, so virtual/awk should be fine.
+ 02 Mar 2013; Christoph Junghans <ottxor@gentoo.org> wiggle-0.8-r1.ebuild, + wiggle-0.9.ebuild: + switched to virtual/awk (bug #455658)