Fix compilation error when calling runGraphics

.vscode/tasks.json

@@ -23,7 +23,7 @@
 			},
 
 			"problemMatcher": {
-				"source": "gcc",
+				"source": "zig",
 				"owner": "cpptools",
 
 				"fileLocation": [

src/main.zig

@@ -11,7 +11,7 @@ const sys = @import("./sys.zig");
 /// Entry point.
 ///
 pub fn main() anyerror!void {
-    return sys.runGraphics(anyerror, run);
+    return nosuspend sys.runGraphics(anyerror, run);
 }
 
 test {

src/sys.zig

@@ -108,8 +108,8 @@ pub const EventLoop = opaque {
             {
                 var status = @as(c_int, 0);
 
-                // SDL2 defines waiting on a null thread reference as a no-op.
+                // SDL2 defines waiting on a null thread reference as a no-op. See
-                // https://wiki.libsdl.org/SDL_WaitThread
+                // https://wiki.libsdl.org/SDL_WaitThread for more information
                 ext.SDL_WaitThread(implementation.file_system_thread, &status);
 
                 if (status != 0) {
@@ -616,13 +616,13 @@ pub const GraphicsContext = opaque {
 ///
 ///
 pub fn GraphicsRunner(comptime Errors: type) type {
-    return fn (*EventLoop, *GraphicsContext) Errors!void;
+    return fn (*EventLoop, *GraphicsContext) callconv(.Async) Errors!void;
 }
 
 ///
 ///
 ///
-pub fn runGraphics(comptime Errors: anytype, run: GraphicsRunner(Errors)) Errors!void {
+pub fn runGraphics(comptime Errors: anytype, comptime run: GraphicsRunner(Errors)) Errors!void {
     if (ext.SDL_Init(ext.SDL_INIT_EVERYTHING) != 0) {
         ext.SDL_LogCritical(ext.SDL_LOG_CATEGORY_APPLICATION, "Failed to initialize runtime");