From 440bfbb976997abdec905f214c30d001df72cbda Mon Sep 17 00:00:00 2001
From: "Enrico Weigelt, metux IT consult" <info@metux.net>
Date: Fri, 23 Oct 2026 17:53:21 +0200
Subject: [PATCH] glamor: add GBM_MAX_PLANES fallback for NetBSD and other
 platforms

GBM_MAX_PLANES is not defined on all platforms (e.g., NetBSD).
Add a fallback definition (4 planes is the standard GBM value)
to allow the build to succeed on platforms where it's not provided
by the system GBM headers.

Signed-off-by: Enterprise <enterprise@x11libre.org>
---
 glamor/glamor_egl.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/glamor/glamor_egl.c b/glamor/glamor_egl.c
index 6fbbeb3c6..ddeb2d515 100644
--- a/glamor/glamor_egl.c
+++ b/glamor/glamor_egl.c
@@ -42,6 +42,10 @@
 #include <gbm.h>
 #include <drm_fourcc.h>
 
+
+#ifndef GBM_MAX_PLANES
+#define GBM_MAX_PLANES 4
+#endif
 #include "glamor_egl.h"
 
 #include "glamor.h"