SDL: testgeometry.c: fix build in c89 mode

From f5c0cdea389687d324e8b3917c566e411241a95a Mon Sep 17 00:00:00 2001
From: Ozkan Sezer <[EMAIL REDACTED]>
Date: Thu, 19 Aug 2021 01:28:10 +0300
Subject: [PATCH] testgeometry.c: fix build in c89 mode

---
 test/testgeometry.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/test/testgeometry.c b/test/testgeometry.c
index 9041233bbe..e0a62bc995 100644
--- a/test/testgeometry.c
+++ b/test/testgeometry.c
@@ -140,13 +140,13 @@ loop()
 
         {
             SDL_Rect viewport;
+            SDL_Vertex verts[3];
             double a;
             double d;
             int cx, cy;
 
             /* Query the sizes */
             SDL_RenderGetViewport(renderer, &viewport);
-            SDL_Vertex verts[3];
             SDL_zeroa(verts);
             cx = viewport.x + viewport.w / 2;
             cy = viewport.y + viewport.h / 2;