fix(macos): gate Linux graphics CLI flags and crash handler with cfg

src-tauri/src/lib.rs

@@ -12,6 +12,7 @@ pub mod session_lifecycle;
 pub mod tauri_adapter;
 
 pub mod auto_theme;
+#[cfg(target_os = "linux")]
 pub mod autoconfig_graphics;
 
 pub mod api;

src-tauri/src/main.rs

@@ -81,6 +81,10 @@ fn is_intel_gpu() -> bool {
 }
 
 fn main() {
+    // CLI flags for Linux graphics troubleshooting (X11/Wayland, GDK, GSK, DMA-BUF)
+    // These are no-ops on macOS/Windows where the graphics stack is managed by the OS.
+    #[cfg(target_os = "linux")]
+    {
         // CLI flag: --autoconfig-graphics — detect environment and apply optimal settings
         if std::env::args().any(|a| a == "--autoconfig-graphics") {
             qbz_nix_lib::autoconfig_graphics::run();
@@ -159,6 +163,7 @@ fn main() {
             }
             return;
         }
+    }
 
     // Set the application name/class for Linux window managers
     // This helps task managers and window switchers identify the app correctly
@@ -537,7 +542,7 @@ fn main() {
         qbz_nix_lib::logging::log_startup(&format!("[QBZ] GPU rendering: {}", gpu_status));
     }
 
-    // Catch GTK initialization panics and show a recovery message
+    // Catch panics during startup and show a recovery message
     let result = std::panic::catch_unwind(|| qbz_nix_lib::run());
 
     if let Err(panic_info) = result {
@@ -549,6 +554,9 @@ fn main() {
             "Unknown panic".to_string()
         };
 
+        // GTK initialization failures only happen on Linux (X11/Wayland graphics stack)
+        #[cfg(target_os = "linux")]
+        {
             let is_gtk_failure = msg.contains("Failed to initialize gtk")
                 || msg.contains("Failed to initialize GTK")
                 || msg.contains("GDK_BACKEND");
@@ -571,11 +579,11 @@ fn main() {
                 eprintln!("╚══════════════════════════════════════════════════════════════╝");
                 eprintln!();
                 eprintln!("[QBZ] Error detail: {}", msg);
-        } else {
-            eprintln!("[QBZ] Fatal error: {}", msg);
-            eprintln!("[QBZ] If the app fails to start, try: qbz --reset-graphics");
+                std::process::exit(1);
+            }
         }
 
+        eprintln!("[QBZ] Fatal error: {}", msg);
         std::process::exit(1);
     }
 }