SDL: undefine ADD_TRIANGLE macro definition

SDL Commits
1 
From 8d2b6c09c5685ff2daf60bf353390748d2314b3a Mon Sep 17 00:00:00 2001
From: Gokul Mittal <[EMAIL REDACTED]>
Date: Sun, 15 Feb 2026 21:27:20 +0530
Subject: [PATCH] undefine ADD_TRIANGLE macro definition

ADD_TRIANGLE macro function in SDL_RenderLines() was never being undefined even after it's purpose was resolved.
---
 src/render/SDL_render.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/render/SDL_render.c b/src/render/SDL_render.c
index fec89a3ef93e6..f3f23f6d9042d 100644
--- a/src/render/SDL_render.c
+++ b/src/render/SDL_render.c
@@ -3904,6 +3904,8 @@ bool SDL_RenderLines(SDL_Renderer *renderer, const SDL_FPoint *points, int count
                     }
                 }
 
+#undef ADD_TRIANGLE
+
                 p = q;
                 cur_index += 4;
             }