I tried to reopen this bug instead of making a new one but I guess it's
archived or something? bug#75795
Changing the search-path-specification of gdk-pixbuf has broken the
build of transmission as this phase now errors out:
=========
(wrap-program (string-append #$output:gui "/bin/transmission-gtk")
;; Wrapping GDK_PIXBUF_MODULE_FILE allows Transmission to load
;; its own icons in pure environments.
`("GDK_PIXBUF_MODULE_FILE" =
(,(getenv "GDK_PIXBUF_MODULE_FILE"))))
=========
Doing a quick search it looks like there at least 10 packages that need
to be adjusted
