[bug#44806] [PATCH staging 3/6] gnu: Add gst-plugins/selection.

[Leo Famulari]

On Sun, Nov 22, 2020 at 09:36:22PM +0100, Leo Prikler wrote:
> * gnu/packages/gstreamer.scm (gst-plugins/selection): New variable.

With the patch series applied on the current staging branch
(56e2da5ae851c), compilation of Guix fails like this:

------
$ guix environment --pure guix -- make -j4
[...]
gnu/packages/gstreamer.scm:907:0: error: (define-public gst-plugins/selection 
(lambda* (pkg #:key plugins configure-flags)) "Build PKG with only PLUGINS 
enabled.  Optionally, if CONFIGURE-FLAGS are\ngiven, also pass them to the 
build system instead of the ones used by PKG." (package/inherit pkg (arguments 
(substitute-keyword-arguments (package-arguments pkg) ((#:configure-flags flags 
(quasiquote (list (unquote-splicing (or configure-flags (quote ()))))) 
(quasiquote (append (list (unquote-splicing (map (lambda (plugin) 
(string-append "-D" plugin "=enabled")) plugins))) (unquote (or configure-flags 
flags))))) ((#:phases phases) (quasiquote (modify-phases (unquote phases) 
(add-after (quote unpack) (quote disable-auto-plugins) (lambda _ (substitute* 
"meson_options.txt" (("'auto'") "'disabled'")) #t)))))))))): source expression 
failed to match any pattern
make[2]: *** [Makefile:6247: make-go] Error 1
------

Can you reproduce it?