In guix/build/qt-utils.scm:24:11

(define (wrap-qt-program out program)
  (define (suffix env-var path)
           ^^^^^
           I can't understand this, if you want to do a suffix wrap, you
           should do it in "wrap-program"(e.g. `("XDG_DATA_DIRS" suffix
           (,vars))), it will generate bash codes to do the job. If you
           use Guile code here, it'll capture build time environment
           variable values.

-- 
Retrieve my PGP public key: https://meta.sr.ht/~citreu.pgp

Zihao