[PATCH 1/1] gnu: twolame: Fix test failure with Perl 5.24.

[Leo Famulari]

* gnu/packages/audio.scm (twolame)[source]: Add snippet to fix test.
---
 gnu/packages/audio.scm | 9 ++++++++-
 1 file changed, 8 insertions(+), 1 deletion(-)

diff --git a/gnu/packages/audio.scm b/gnu/packages/audio.scm
index db32b6f..5a2cf09 100644
--- a/gnu/packages/audio.scm
+++ b/gnu/packages/audio.scm
@@ -2134,7 +2134,14 @@ conversion.  It may be used, for example, to resample 
PCM-encoded audio.")
        (uri (string-append "mirror://sourceforge/twolame/twolame/" version
                            "/twolame-" version ".tar.gz"))
        (sha256
-        (base32 "0ahiqqng5pidwhj1wzph4vxxgxxgcfa3gl0gywipzx2ii7s35wwq"))))
+        (base32 "0ahiqqng5pidwhj1wzph4vxxgxxgcfa3gl0gywipzx2ii7s35wwq"))
+       (modules '((guix build utils)))
+       ;; The tests break with Perl 5.24:
+       ;; https://github.com/njh/twolame/issues/21
+       (snippet
+        '(begin
+           (substitute* "tests/test.pl" (("\\(@_\\)") "($_[0])"))
+           #t))))
     (build-system gnu-build-system)
     (inputs
      `(("libsndfile" ,libsndfile)))
-- 
2.10.1