Patched to compile on C89 compilers.
diff --git a/src/video/mir/SDL_mirframebuffer.c b/src/video/mir/SDL_mirframebuffer.c
index 22f290b..f8b4664 100644
--- a/src/video/mir/SDL_mirframebuffer.c
+++ b/src/video/mir/SDL_mirframebuffer.c
@@ -91,11 +91,13 @@ MIR_UpdateWindowFramebuffer(_THIS, SDL_Window* window,
MirGraphicsRegion region;
int i, j, x, y, w, h, start;
int bytes_per_pixel, bytes_per_row, s_stride, d_stride;
+ char* s_dest;
+ char* pixels;
MIR_mir_surface_get_graphics_region(mir_window->surface, ®ion);
- char* s_dest = region.vaddr;
- char* pixels = (char*)window->surface->pixels;
+ s_dest = region.vaddr;
+ pixels = (char*)window->surface->pixels;
s_stride = window->surface->pitch;
d_stride = region.stride;