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-rw-r--r--gnu/packages/audio.scm3
1 files changed, 2 insertions, 1 deletions
diff --git a/gnu/packages/audio.scm b/gnu/packages/audio.scm
index a35ef278ee..7fa7f3dd24 100644
--- a/gnu/packages/audio.scm
+++ b/gnu/packages/audio.scm
@@ -178,7 +178,8 @@ namespace ARDOUR { const char* revision = \"3.5-403-gec2cb31\" ; }"))))
(file-name (string-append name "-" version))))
(build-system waf-build-system)
(arguments
- `(#:phases
+ `(#:configure-flags '("--cxx11") ; required by gtkmm
+ #:phases
(modify-phases %standard-phases
(add-after
'unpack 'set-rpath-in-LDFLAGS