From c3913fac57c557ba5ebc98c646f75c7000ab8aa7 Mon Sep 17 00:00:00 2001
From: Ricardo Wurmus <rekado@elephly.net>
Date: Thu, 30 Mar 2017 10:11:56 +0200
Subject: gnu: powertabeditor: Link with pthread.

* gnu/packages/music.scm (powertabeditor)[arguments]: Link with "-lpthread" to
fix build with GCC 5.
---
 gnu/packages/music.scm | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gnu/packages/music.scm b/gnu/packages/music.scm
index 198c6f1fed..3946c3a646 100644
--- a/gnu/packages/music.scm
+++ b/gnu/packages/music.scm
@@ -906,6 +906,7 @@ (define-public powertabeditor
            (lambda* (#:key inputs #:allow-other-keys)
              ;; Link with required static libraries, because we're not
              ;; using the bundled version of withershins.
+             ;; Also add pthread for fixing a linker error.
              (substitute* "source/build/CMakeLists.txt"
                (("withershins" line)
                 (string-append line "\n"
@@ -914,6 +915,7 @@ (define-public powertabeditor
                                (assoc-ref inputs "libiberty")
                                "/lib/libiberty.a\n"
                                "dl\n"
+                               "pthread\n"
                                "z\n")))
              #t)))))
     (inputs
-- 
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