From 953b0f81ad9d4a293b1b57cd82c9e04cba86be1b Mon Sep 17 00:00:00 2001
From: Wim Taymans <wtaymans@redhat.com>
Date: Tue, 17 Jun 2025 09:25:54 +0200
Subject: [PATCH] filter-graph: make sure M_PIf is defined

---
 spa/plugins/filter-graph/builtin_plugin.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/spa/plugins/filter-graph/builtin_plugin.c b/spa/plugins/filter-graph/builtin_plugin.c
index 467b62a17..9d293acdb 100644
--- a/spa/plugins/filter-graph/builtin_plugin.c
+++ b/spa/plugins/filter-graph/builtin_plugin.c
@@ -2802,6 +2802,10 @@ static struct spa_fga_port zeroramp_ports[] = {
 	},
 };
 
+#ifndef M_PIf
+# define M_PIf	3.14159265358979323846f /* pi */
+#endif
+
 static void zeroramp_run(void * Instance, unsigned long SampleCount)
 {
 	struct builtin *impl = Instance;