latest fonts/fontconfig failing to build on native X11 NetBSD/amd64 6.1

[David Brownlee <abs%absd.org@localhost>]

Clean build, latest pkgsrc tree - anyone else seeing this?

gmake[2]: Entering directory
`/var/obj/pkg/fonts/fontconfig/work/fontconfig-2.10.93/fc-cache'
  CCLD     fc-cache
fc-cache.o: In function `main':
fc-cache.c:(.text+0x546): undefined reference to `FcConfigSetSysRoot'
fc-cache.c:(.text+0x648): undefined reference to `FcCacheCreateTagFile'
fc-cache.c:(.text+0x67c): undefined reference to `FcDirCacheClean'