gnu: Add libsndfile/fixed.

* gnu/packages/pulseaudio.scm (libsndfile/fixed): New variable.

gnu/packages/pulseaudio.scm

@@ -121,6 +121,17 @@ (define-public libsndfile
 for reading and writing new sound file formats.")
     (license l:gpl2+)))
 
+;; Remove this on core-updates
+(define-public libsndfile/fixed
+  (package
+    (inherit libsndfile)
+    (inputs '())
+    (propagated-inputs
+     `(("libvorbis" ,libvorbis)
+       ("libogg" ,libogg)
+       ("flac" ,flac)
+       ("opus" ,opus)))))
+
 (define-public libsamplerate
   (package
     (name "libsamplerate")                     ; aka. Secret Rabbit Code (SRC)