output runtime at startup

Makefile

@@ -16,7 +16,7 @@ dev/install:
 # maintain it at the moment).
 deb:
 	rm -rf zig-out/
-	zig build -Doptimize=ReleaseFast
+	zig build -Doptimize=ReleaseFast -Dapp-runtime=gtk
 	fpm -C zig-out/ -s dir -t deb -n ghostty --prefix /usr ./
 .PHONY: deb
 

src/build_config.zig

@@ -6,13 +6,17 @@ const std = @import("std");
 const builtin = @import("builtin");
 const options = @import("build_options");
 const assert = std.debug.assert;
+const apprt = @import("apprt.zig");
 
 /// The artifact we're producing. This can be used to determine if we're
 /// building a standalone exe, an embedded lib, etc.
 pub const artifact = Artifact.detect();
 
 /// The runtime to back exe artifacts with.
-pub const app_runtime = options.app_runtime;
+pub const app_runtime = std.meta.stringToEnum(
+    apprt.Runtime,
+    std.meta.tagName(options.app_runtime),
+).?;
 
 /// Whether our devmode UI is enabled or not. This requires imgui to be
 /// compiled.

src/main.zig

@@ -170,6 +170,7 @@ pub const GlobalState = struct {
 
     pub fn init(self: *GlobalState) void {
         // Output some debug information right away
+        std.log.info("runtime={}", .{build_config.app_runtime});
         std.log.info("dependency harfbuzz={s}", .{harfbuzz.versionString()});
         if (options.fontconfig) {
             std.log.info("dependency fontconfig={d}", .{fontconfig.version()});