From 3ee08bbae796fe0c771f3c6bb922574584787693 Mon Sep 17 00:00:00 2001
From: Robin Gareus <robin@gareus.org>
Date: Mon, 30 Dec 2019 16:00:22 +0100
Subject: [PATCH] Revert "fix a cast warning (as recommended in GTK+ docs"

This reverts commit af30a6f001f0758155b3ece040fc2baa643a29de

because it breaks OSX/MacOS builds:
libs/surfaces/mackie/mackie_control_protocol.cc:945: error: 'G_SOURCE_FUNC' was not declared in this scope
---
 libs/surfaces/mackie/mackie_control_protocol.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/libs/surfaces/mackie/mackie_control_protocol.cc b/libs/surfaces/mackie/mackie_control_protocol.cc
index c975ede7c1..665f58f02e 100644
--- a/libs/surfaces/mackie/mackie_control_protocol.cc
+++ b/libs/surfaces/mackie/mackie_control_protocol.cc
@@ -942,7 +942,7 @@ MackieControlProtocol::create_surfaces ()
 				ipm->mcp = this;
 				ipm->port = &input_port;
 
-				g_source_set_callback (surface->input_source, G_SOURCE_FUNC (ipmidi_input_handler), ipm, NULL);
+				g_source_set_callback (surface->input_source, (GSourceFunc) ipmidi_input_handler, ipm, NULL);
 				g_source_attach (surface->input_source, main_loop()->get_context()->gobj());
 			}
 		}