testgeometry.c: fix build in c89 mode
diff --git a/test/testgeometry.c b/test/testgeometry.c
index 9041233..e0a62bc 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;