diff --git a/build.zig b/build.zig
index e5b006f..99f30b6 100644
--- a/build.zig
+++ b/build.zig
@@ -10,9 +10,13 @@ const Options = struct {
 pub fn build(b: *Build) !void {
     const target = b.standardTargetOptions(.{});
     const optimize = b.standardOptimizeOption(.{});
+    const opt_use_gles3 = b.option(bool, "gles3", "Force OpenGL ES3 (default: false)") orelse false;
+    const opt_use_wayland = b.option(bool, "wayland", "Force Wayland (default: false, Linux only, not supported in main-line headers)") orelse false;
     const dep_sokol = b.dependency("sokol", .{
         .target = target,
         .optimize = optimize,
+        .gles3 = opt_use_gles3,
+        .wayland = opt_use_wayland,
     });
     const mod_pacman = b.createModule(.{
         .root_source_file = b.path("src/pacman.zig"),
diff --git a/build.zig.zon b/build.zig.zon
index f1bf0bb..f6d763f 100644
--- a/build.zig.zon
+++ b/build.zig.zon
@@ -11,8 +11,8 @@
     .fingerprint = 0xa1c2e4b869826271,
     .dependencies = .{
         .sokol = .{
-            .url = "git+https://github.com/floooh/sokol-zig.git#baa842af7081c0d26d94847c5ecb398d8c5005cb",
-            .hash = "sokol-0.1.0-pb1HK_-oNgARi7JDvtvcu9fo8-5ArHCZ3u2bcBsFsu0y",
+            .url = "git+https://github.com/floooh/sokol-zig.git#6ca71321c91e842fb32a8140802a546e50d8a086",
+            .hash = "sokol-0.1.0-pb1HK9lgNwAAB5SLJlpJQ09PZ2CVydxkNs0KaptLaTUD",
         },
     },
 }
diff --git a/src/pacman.zig b/src/pacman.zig
index cc35e10..37e66d2 100644
--- a/src/pacman.zig
+++ b/src/pacman.zig
@@ -265,7 +265,7 @@ const SoundFunc = *const fn (usize) void;
 const SoundDesc = struct {
     func: ?SoundFunc = null, // optional pointer to sound effect callback if this is a procedural sound
     dump: ?[]const u32 = null, // optional register dump data slice
-    voice: [NumVoices]bool = .{false} ** NumVoices,
+    voice: [NumVoices]bool = @splat(false),
 };
 
 // a sound 'hardware voice' (of a Namco WSG emulation)
@@ -285,7 +285,7 @@ const Sound = struct {
     dump: ?[]const u32 = null, // optional register dump data
     num_ticks: u32 = 0, // sound effect length in ticks (only for register dump sounds)
     stride: u32 = 0, // register data stride for multivoice dumps (1,2 or 3)
-    voice: [NumVoices]bool = .{false} ** NumVoices,
+    voice: [NumVoices]bool = @splat(false),
 };
 
 // all mutable state is in a single nested global
@@ -1493,7 +1493,7 @@ fn gameInitPlayfield() void {
         \\2BBBBBBBBBBBBBBBBBBBBBBBBBB3
     ;
     // map ASCII to tile codes
-    var t = [_]u8{TileCodeDot} ** 128;
+    var t: [128]u8 = @splat(TileCodeDot);
     t['_'] = 0x40;
     t['0'] = 0xD1;
     t['1'] = 0xD0;