我目前正在使用 libGDX 开发一个小型多平台游戏。该游戏在 Windows、Android 和 OSX 上运行良好，但我无法让它为 iOS 编译。
iOS的libGDX 指南提出了一些注意事项，但我很确定我已经考虑了一切。我有 Eclipse、Xamarin.iOS、JDK、Ant 和 $PATH，$IKVM_HOME 已按应有的方式设置。gamename.dll（它是 Mono 编译的 dll，包含我所有的游戏逻辑，由 Java 代码自动生成）已经创建，一切看起来都井井有条。
但是，在编译时，我收到以下错误消息：
Error MT5201: Native linking failed. Please review user flags provided to gcc: "-L/Users/blah/Ultralyd/Ultralyd-ios/libs/ios" "-L/Users/blah/Ultralyd/Ultralyd-ios/libs/ios/ikvm/bin" "-likvm-natives" "-lgdx" "-force_load" "/Users/blah/Ultralyd/Ultralyd-ios/libs/ios/libgdx.a" "-force_load" "/Users/blah/Ultralyd/Ultralyd-ios/libs/ios/ikvm/bin/libikvm-natives.a" (MT5201)
（为简洁起见，路径缩写了一点。）
这些参数由 libGDX 在创建 iOS 项目时自动生成，在 Xamarin 的项目设置中如下所示：
-nosymbolstrip -nostrip -cxx -gcc_flags "-L${ProjectDir}/libs/ios -L${ProjectDir}/libs/ios/ikvm/bin -likvm-natives -lgdx -force_load ${ProjectDir}/libs/ios/libgdx.a -force_load ${ProjectDir}/libs/ios/ikvm/bin/libikvm-natives.a"
构建输出包含以下内容：
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/g++ -Wl,-no_pie -arch i386 -gdwarf-2 -fobjc-legacy-dispatch -fobjc-abi-version=2 -miphoneos-version-min=3.2 -arch i386 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1.sdk /Users/erlenddahl/Copy/UltralydDebugging/Libgdx/Ultralyd/Ultralyd-ios/obj/iPhoneSimulator/Debug/mtouch-cache/main.i386.cache.vqL1439yU4Eq3JVRLyBeXkLz910=.o -o /var/folders/4p/g1k6g_v51kn35jm5yyh3g74m0000gq/T/tmp1da69439.tmp/iosgame -framework CFNetwork -framework Foundation -framework OpenGLES -framework UIKit -framework AVFoundation -framework QuartzCore -framework CoreGraphics -framework OpenAL -framework AudioToolbox -lz -liconv -u _mono_pmip -u _monotouch_create_managed_ref -u _monotouch_release_managed_ref -u _monotouch_IntPtr_objc_msgSend_IntPtr -u _monotouch_IntPtr_objc_msgSendSuper_IntPtr -u _CloseZStream -u _CreateZStream -u _Flush -u _ReadZStream -u _WriteZStream -lmono-2.0 -lmonotouch-debug -L/Developer/MonoTouch/SDKs/MonoTouch.iphonesimulator.sdk/usr/lib -u _catch_exception_raise -force_load /var/folders/4p/g1k6g_v51kn35jm5yyh3g74m0000gq/T/tmp1da69439.tmp/libObjectAL-universal.a "-L/Users/erlenddahl/Copy/UltralydDebugging/Libgdx/Ultralyd/Ultralyd-ios/libs/ios" "-L/Users/erlenddahl/Copy/UltralydDebugging/Libgdx/Ultralyd/Ultralyd-ios/libs/ios/ikvm/bin" "-likvm-natives" "-lgdx" "-force_load" "/Users/erlenddahl/Copy/UltralydDebugging/Libgdx/Ultralyd/Ultralyd-ios/libs/ios/libgdx.a" "-force_load" "/Users/erlenddahl/Copy/UltralydDebugging/Libgdx/Ultralyd/Ultralyd-ios/libs/ios/ikvm/bin/libikvm-natives.a"
Process exited with code 1, command:
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/g++ -Wl,-no_pie -arch i386 -gdwarf-2 -fobjc-legacy-dispatch -fobjc-abi-version=2 -miphoneos-version-min=3.2 -arch i386 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1.sdk /Users/erlenddahl/Copy/UltralydDebugging/Libgdx/Ultralyd/Ultralyd-ios/obj/iPhoneSimulator/Debug/mtouch-cache/main.i386.cache.vqL1439yU4Eq3JVRLyBeXkLz910=.o -o /var/folders/4p/g1k6g_v51kn35jm5yyh3g74m0000gq/T/tmp1da69439.tmp/iosgame -framework CFNetwork -framework Foundation -framework OpenGLES -framework UIKit -framework AVFoundation -framework QuartzCore -framework CoreGraphics -framework OpenAL -framework AudioToolbox -lz -liconv -u _mono_pmip -u _monotouch_create_managed_ref -u _monotouch_release_managed_ref -u _monotouch_IntPtr_objc_msgSend_IntPtr -u _monotouch_IntPtr_objc_msgSendSuper_IntPtr -u _CloseZStream -u _CreateZStream -u _Flush -u _ReadZStream -u _WriteZStream -lmono-2.0 -lmonotouch-debug -L/Developer/MonoTouch/SDKs/MonoTouch.iphonesimulator.sdk/usr/lib -u _catch_exception_raise -force_load /var/folders/4p/g1k6g_v51kn35jm5yyh3g74m0000gq/T/tmp1da69439.tmp/libObjectAL-universal.a "-L/Users/erlenddahl/Copy/UltralydDebugging/Libgdx/Ultralyd/Ultralyd-ios/libs/ios" "-L/Users/erlenddahl/Copy/UltralydDebugging/Libgdx/Ultralyd/Ultralyd-ios/libs/ios/ikvm/bin" "-likvm-natives" "-lgdx" "-force_load" "/Users/erlenddahl/Copy/UltralydDebugging/Libgdx/Ultralyd/Ultralyd-ios/libs/ios/libgdx.a" "-force_load" "/Users/erlenddahl/Copy/UltralydDebugging/Libgdx/Ultralyd/Ultralyd-ios/libs/ios/ikvm/bin/libikvm-natives.a"
Undefined symbols for architecture i386:
"_AVAudioSessionInterruptionNotification", referenced from:
-[OALAudioSession init] in libObjectAL-universal.a(OALAudioSession.o)
"_AVAudioSessionInterruptionTypeKey", referenced from:
-[OALAudioSession handleInterruption:] in libObjectAL-universal.a(OALAudioSession.o)
"_AVAudioSessionInterruptionOptionKey", referenced from:
-[OALAudioSession handleInterruption:] in libObjectAL-universal.a(OALAudioSession.o)
ld: symbol(s) not found for architecture i386
collect2: ld returned 1 exit status
libObjectAL 是 libGDX 在创建项目时自动添加的引用 dll 之一。
我认为这意味着我的设置有问题，但我找不到任何看起来相关的东西。
有任何想法吗？
编辑：添加 poupou 建议的框架后，我现在收到一条略有不同的错误消息： EDIT1b：不，实际上是一样的。唯一的区别是论点。
/Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/usr/bin/g++ -Wl,-no_pie -arch i386 -gdwarf-2 -fobjc-legacy-dispatch -fobjc-abi-version=2 -miphoneos-version-min=3.2 -arch i386 -isysroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneSimulator.platform/Developer/SDKs/iPhoneSimulator5.1.sdk /Users/erlenddahl/Copy/UltralydDebugging/Libgdx/Ultralyd/Ultralyd-ios/obj/iPhoneSimulator/Debug/mtouch-cache/main.i386.cache.1rmDllI2qRyDYwNzBd+9+oPccNg=.o -o /var/folders/4p/g1k6g_v51kn35jm5yyh3g74m0000gq/T/tmp141160e6.tmp/iosgame -framework CFNetwork -framework Foundation -framework OpenGLES -framework UIKit -framework AVFoundation -framework QuartzCore -framework CoreGraphics -framework OpenAL -framework AudioToolbox -lz -liconv -u _mono_pmip -u _monotouch_create_managed_ref -u _monotouch_release_managed_ref -u _monotouch_IntPtr_objc_msgSend_IntPtr -u _monotouch_IntPtr_objc_msgSendSuper_IntPtr -u _CloseZStream -u _CreateZStream -u _Flush -u _ReadZStream -u _WriteZStream -lmono-2.0 -lmonotouch-debug -L/Developer/MonoTouch/SDKs/MonoTouch.iphonesimulator.sdk/usr/lib -u _catch_exception_raise -force_load /var/folders/4p/g1k6g_v51kn35jm5yyh3g74m0000gq/T/tmp141160e6.tmp/libObjectAL-universal.a "-framework" "AVFoundation" "-L/Users/erlenddahl/Copy/UltralydDebugging/Libgdx/Ultralyd/Ultralyd-ios/libs/ios" "-L/Users/erlenddahl/Copy/UltralydDebugging/Libgdx/Ultralyd/Ultralyd-ios/libs/ios/ikvm/bin" "-likvm-natives" "-lgdx" "-force_load" "/Users/erlenddahl/Copy/UltralydDebugging/Libgdx/Ultralyd/Ultralyd-ios/libs/ios/libgdx.a" "-force_load" "/Users/erlenddahl/Copy/UltralydDebugging/Libgdx/Ultralyd/Ultralyd-ios/libs/ios/ikvm/bin/libikvm-natives.a"
Undefined symbols for architecture i386:
"_AVAudioSessionInterruptionNotification", referenced from:
-[OALAudioSession init] in libObjectAL-universal.a(OALAudioSession.o)
"_AVAudioSessionInterruptionTypeKey", referenced from:
-[OALAudioSession handleInterruption:] in libObjectAL-universal.a(OALAudioSession.o)
"_AVAudioSessionInterruptionOptionKey", referenced from:
-[OALAudioSession handleInterruption:] in libObjectAL-universal.a(OALAudioSession.o)
ld: symbol(s) not found for architecture i386
collect2: ld returned 1 exit status
error MT5201: Native linking failed. Please review user flags provided to gcc: "-framework" "AVFoundation" "-L/Users/erlenddahl/Copy/UltralydDebugging/Libgdx/Ultralyd/Ultralyd-ios/libs/ios" "-L/Users/erlenddahl/Copy/UltralydDebugging/Libgdx/Ultralyd/Ultralyd-ios/libs/ios/ikvm/bin" "-likvm-natives" "-lgdx" "-force_load" "/Users/erlenddahl/Copy/UltralydDebugging/Libgdx/Ultralyd/Ultralyd-ios/libs/ios/libgdx.a" "-force_load" "/Users/erlenddahl/Copy/UltralydDebugging/Libgdx/Ultralyd/Ultralyd-ios/libs/ios/ikvm/bin/libikvm-natives.a"