I noticed this because /media/tinderbox/usr/lib/pixie/modules/gui.so re-exports FLTK's symbols. Not sure what's going on.
Created attachment 301415 [details, diff] Add --disable-static-fltk configure option Note that with x11-libs/fltk-1.3.0-r1[-static-libs], pixie's configure fails to find fltk at all, so this patch kills two birds with one stone.
Patch applied without a revision bump.
https://sources.gentoo.org/cgi-bin/viewvc.cgi/gentoo-x86/media-gfx/pixie/pixie-2.2.6-r1.ebuild?hideattic=0&r1=1.8&r2=1.9