From e3a90b81503cefb3b27fbac2ee44cb94f41635c1 Mon Sep 17 00:00:00 2001
From: Sharlatan Hellseher <sharlatanus@gmail.com>
Date: Thu, 7 Aug 2025 11:08:42 +0100
Subject: [PATCH] gnu: lmms: Fix build.

Fixes guix/guix#1802

* gnu/packages/music.scm (lmms) [arguments] <phases>: Add
'fix-carla-export.

Change-Id: I763418c78068388c76066a62b7bf9277afe3a355
---
 gnu/packages/music.scm | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/gnu/packages/music.scm b/gnu/packages/music.scm
index 8e7394946ef..860d63b3666 100644
--- a/gnu/packages/music.scm
+++ b/gnu/packages/music.scm
@@ -5247,6 +5247,12 @@ and more.  Full API documentation and examples are included.")
       #:configure-flags '(list "-DWANT_QT5=ON" "-DWANT_VST=OFF")
       #:phases
       #~(modify-phases %standard-phases
+          (add-after 'unpack 'fix-carla-export
+            ;; Taken from NixOS package definition.
+            (lambda _
+              (substitute* "plugins/carlabase/carla.h"
+                (("CARLA_EXPORT")
+                 "CARLA_API_EXPORT"))))
           (add-after 'unpack 'unpack-rpmalloc
             (lambda* (#:key inputs #:allow-other-keys)
               (copy-recursively (assoc-ref inputs "rpmalloc")