process: enable verbose virgl logging for iOS

Services/UTMQemuSystem.m

@@ -15,6 +15,7 @@
 //
 
 #import <dlfcn.h>
+#import <TargetConditionals.h>
 #import "UTMLogging.h"
 #import "UTMQemuSystem.h"
 
@@ -108,7 +109,9 @@ static int startQemu(UTMProcess *process, int argc, const char *argv[], const ch
 - (void)setHasDebugLog:(BOOL)hasDebugLog {
     _hasDebugLog = hasDebugLog;
     if (hasDebugLog) {
+#if TARGET_OS_OSX // FIXME: verbose logging is broken on iOS
         self.mutableEnvironment[@"G_MESSAGES_DEBUG"] = @"all";
+#endif
         self.mutableEnvironment[@"VK_LOADER_DEBUG"] = @"all";
         self.mutableEnvironment[@"VIRGL_LOG_LEVEL"] = @"debug";
         self.mutableEnvironment[@"MESA_DEBUG"] = @"1";

Services/UTMQemuVirtualMachine.swift

@@ -347,9 +347,7 @@ extension UTMQemuVirtualMachine {
         system.rendererBackend = rendererBackend
         system.vulkanDriver = try vulkanDriver
         system.shmemDirectoryURL = await config.shmemDirectoryURL
-        #if os(macOS) // FIXME: verbose logging is broken on iOS
         system.hasDebugLog = hasDebugLog
-        #endif
         try Task.checkCancellation()
 
         if isShortcut {