gnu: yoshimi: Update to 1.7.0.1-0.bfcadc6 to fix build.

* gnu/packages/music.scm (yoshimi): Update to 1.7.0.1-0.bfcadc6.
[source]: Use GIT-FETCH for now.

gnu/packages/music.scm

@@ -2237,17 +2237,22 @@ capabilities, custom envelopes, effects, etc.")
     (license license:gpl2)))
 
 (define-public yoshimi
+  ;; Release 1.7.1 doesn't build with our version of LV2.  Applying only
+  ;; 86996cbb235f0fe138ae814a6758c2c8ba1c2a38 is not enough.
+  (let ((commit "bfcadc6537dbcb301cd93346f21d36bcbffa36c7")
+        (revision "0"))
     (package
       (name "yoshimi")
-    (version "1.7.0.1")
+      (version (git-version "1.7.1" revision commit))
-    (source (origin
+      (source
-              (method url-fetch)
+       (origin
-              (uri (string-append "mirror://sourceforge/yoshimi/"
+         (method git-fetch)
-                                  (version-major+minor version)
+         (uri (git-reference
-                                  "/yoshimi-" version ".tar.bz2"))
+               (url "https://git.code.sf.net/p/yoshimi/code")
+               (commit commit)))
          (sha256
-               (base32
+          (base32 "0vhdxj7ky4iyq11r5wj9jwavjih4xvcn2djbrlmwpkdhrzpy6myl"))
-                "1pkqrrr51vlxh96vy0c0rf5ijjvymys4brsw9rv1bdp1bb8izw6c"))))
+         (file-name (git-file-name name version))))
       (build-system cmake-build-system)
       (arguments
        `(#:tests? #f                    ; there are no tests
@@ -2291,7 +2296,7 @@ capabilities, custom envelopes, effects, etc.")
 synthesizer.  It offers three synthesizer engines, multitimbral and polyphonic
 synths, microtonal capabilities, custom envelopes, effects, etc.  Yoshimi
 improves on support for JACK features, such as JACK MIDI.")
-    (license license:gpl2)))
+      (license license:gpl2))))
 
 (define-public libgig
   (package