ios – bug编译alamofire – 未知选项字符`X’： – Xlinker

Podfile：

source 'https://github.com/CocoaPods/Specs.git'
platform :ios,'8.0'

pod 'oauth.io'
pod 'Alamofire','~> 1.1'

这是错误：

Libtool /Users/tony/Library/Developer/Xcode/DerivedData/Candytone-aynufizixrzmtwgatrvrjynlonxv/Build/Products/Debug-iphonesimulator/libPods-Alamofire.a normal x86_64
    cd /Users/tony/src/candytone-ios/Candytone/Pods
    export IPHONEOS_DEPLOYMENT_TARGET=8.1
    export PATH="/Applications/Xcode.app/Contents/Developer/Platforms/iPhonesimulator.platform/Developer/usr/bin:/Applications/Xcode.app/Contents/Developer/usr/bin:/usr/bin:/bin:/usr/sbin:/sbin"
    /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool -static -arch_only x86_64 -syslibroot /Applications/Xcode.app/Contents/Developer/Platforms/iPhonesimulator.platform/Developer/SDKs/iPhonesimulator8.1.sdk -L/Users/tony/Library/Developer/Xcode/DerivedData/Candytone-aynufizixrzmtwgatrvrjynlonxv/Build/Products/Debug-iphonesimulator -filelist /Users/tony/Library/Developer/Xcode/DerivedData/Candytone-aynufizixrzmtwgatrvrjynlonxv/Build/Intermediates/Pods.build/Debug-iphonesimulator/Pods-Alamofire.build/Objects-normal/x86_64/Pods-Alamofire.LinkFileList -L/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/lib/swift/iphonesimulator -Xlinker -add_ast_path -Xlinker /Users/tony/Library/Developer/Xcode/DerivedData/Candytone-aynufizixrzmtwgatrvrjynlonxv/Build/Intermediates/Pods.build/Debug-iphonesimulator/Pods-Alamofire.build/Objects-normal/x86_64/Pods_Alamofire.swiftmodule -framework Foundation -o /Users/tony/Library/Developer/Xcode/DerivedData/Candytone-aynufizixrzmtwgatrvrjynlonxv/Build/Products/Debug-iphonesimulator/libPods-Alamofire.a

error: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool: unkNown option character `X' in: -Xlinker
Usage: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool -static [-] file [...] [-filelist listfile[,dirname]] [-arch_only arch] [-sacLT] [-no_warning_for_no_symbols]
Usage: /Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/libtool -dynamic [-] file [...] [-filelist listfile[,dirname]] [-arch_only arch] [-o output] [-install_name name] [-compatibility_version #] [-current_version #] [-seg1addr 0x#] [-segs_read_only_addr 0x#] [-segs_read_write_addr 0x#] [-seg_addr_table <filename>] [-seg_addr_table_filename <file_system_path>] [-all_load] [-noall_load]