ASIHttpRequest编译不通过

转：http://blog.sina.com.cn/s/blog_67a5e47201014tof.html

Undefined symbols for architecture i386:

  "_CFHTTPAuthenticationIsValid", referenced from:      -[ASIHTTPRequest attemptToApplyProxyCredentialsAndResume] in ASIHTTPRequest.o      -[ASIHTTPRequest attemptToApplyCredentialsAndResume] in ASIHTTPRequest.o  "_CFHTTPMessageApplyCredentialDictionary", referenced from:      -[ASIHTTPRequest applyAuthorizationHeader] in ASIHTTPRequest.o      -[ASIHTTPRequest applyAuthorizationHeader] in ASIHTTPRequest.o      -[ASIHTTPRequest applyProxyCredentials:] in ASIHTTPRequest.o      -[ASIHTTPRequest applyCredentials:] in ASIHTTPRequest.o  "_CFHTTPMessageIsHeaderComplete", referenced from:      -[ASIHTTPRequest readResponseHeaders] in ASIHTTPRequest.o  "_kCFStreamPropertyHTTPSProxyPort", referenced from:      _kCFStreamPropertyHTTPSProxyPort$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kCFStreamPropertyHTTPSProxyPort$non_lazy_ptr)  "_inflate", referenced from:      +[ASIHTTPRequest uncompressZippedData:] in ASIHTTPRequest.o      +[ASIHTTPRequest uncompressZippedDataFromSource:toDestination:] inASIHTTPRequest.o  "_kCFStreamSSLCertificates", referenced from:      _kCFStreamSSLCertificates$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kCFStreamSSLCertificates$non_lazy_ptr)  "_CFNetworkCopyProxiesForAutoConfigurationScript", referenced from:      +[ASIHTTPRequest proxiesForURL:fromPAC:] in ASIHTTPRequest.o  "_kCFProxyTypeKey", referenced from:      _kCFProxyTypeKey$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kCFProxyTypeKey$non_lazy_ptr)  "_CFReadStreamCreateForStreamedHTTPRequest", referenced from:      -[ASIHTTPRequest startRequest] in ASIHTTPRequest.o      -[ASIHTTPRequest startRequest] in ASIHTTPRequest.o  "_kCFProxyPortNumberKey", referenced from:      _kCFProxyPortNumberKey$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kCFProxyPortNumberKey$non_lazy_ptr)  "_kUTTagClassMIMEType", referenced from:      _kUTTagClassMIMEType$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kUTTagClassMIMEType$non_lazy_ptr)  "_inflateEnd", referenced from:      +[ASIHTTPRequest uncompressZippedData:] in ASIHTTPRequest.o      +[ASIHTTPRequest uncompressZippedDataFromSource:toDestination:] inASIHTTPRequest.o      +[ASIHTTPRequest uncompressZippedDataFromSource:toDestination:] inASIHTTPRequest.o      +[ASIHTTPRequest uncompressZippedDataFromSource:toDestination:] inASIHTTPRequest.o      +[ASIHTTPRequest uncompressZippedDataFromSource:toDestination:] inASIHTTPRequest.o  "_inflateInit2_", referenced from:      +[ASIHTTPRequest uncompressZippedData:] in ASIHTTPRequest.o      +[ASIHTTPRequest uncompressZippedDataFromSource:toDestination:] inASIHTTPRequest.o  "_kCFProxyAutoConfigurationURLKey", referenced from:      _kCFProxyAutoConfigurationURLKey$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kCFProxyAutoConfigurationURLKey$non_lazy_ptr)  "_CFHTTPAuthenticationRequiresUserNameAndPassword", referenced from:      -[ASIHTTPRequest attemptToApplyProxyCredentialsAndResume] in ASIHTTPRequest.o      -[ASIHTTPRequest attemptToApplyCredentialsAndResume] in ASIHTTPRequest.o  "_kCFHTTPAuthenticationUsername", referenced from:      _kCFHTTPAuthenticationUsername$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kCFHTTPAuthenticationUsername$non_lazy_ptr)  "_kCFStreamPropertyHTTPProxy", referenced from:      _kCFStreamPropertyHTTPProxy$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kCFStreamPropertyHTTPProxyPort$non_lazy_ptr,_kCFStreamPropertyHTTPProxyHost$non_lazy_ptr , _kCFStreamPropertyHTTPProxy$non_lazy_ptr )  "_kCFStreamPropertyHTTPResponseHeader", referenced from:      _kCFStreamPropertyHTTPResponseHeader$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kCFStreamPropertyHTTPResponseHeader$non_lazy_ptr)  "_CFHTTPMessageGetResponseStatusCode", referenced from:      -[ASIHTTPRequest readResponseHeaders] in ASIHTTPRequest.o  "_kCFProxyTypeHTTP", referenced from:      _kCFProxyTypeHTTP$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kCFProxyTypeHTTP$non_lazy_ptr)  "_kCFHTTPAuthenticationSchemeBasic", referenced from:      _kCFHTTPAuthenticationSchemeBasic$non_lazy_ptr in ASIAuthenticationDialog.o      _kCFHTTPAuthenticationSchemeBasic$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kCFHTTPAuthenticationSchemeBasic$non_lazy_ptr)  "_SCNetworkReachabilityScheduleWithRunLoop", referenced from:      -[Reachability startNotifier] in Reachability.o  "_SCNetworkReachabilityGetFlags", referenced from:      -[Reachability currentReachabilityStatus] in Reachability.o      -[Reachability isReachable] in Reachability.o      -[Reachability isConnectionRequired] in Reachability.o      -[Reachability isConnectionOnDemand] in Reachability.o      -[Reachability isInterventionRequired] in Reachability.o      -[Reachability isReachableViaWWAN] in Reachability.o      -[Reachability isReachableViaWiFi] in Reachability.o      -[Reachability reachabilityFlags] in Reachability.o  "_deflateInit2_", referenced from:      +[ASIHTTPRequest compressData:] in ASIHTTPRequest.o      +[ASIHTTPRequest compressDataFromSource:toDestination:] in ASIHTTPRequest.o  "_CFNetworkCopyProxiesForURL", referenced from:      -[ASIHTTPRequest startRequest] in ASIHTTPRequest.o      +[ASIHTTPRequest proxiesForURL:fromPAC:] in ASIHTTPRequest.o  "_CFHTTPMessageSetHeaderFieldValue", referenced from:      -[ASIHTTPRequest main] in ASIHTTPRequest.o      -[ASIHTTPRequest checkRequestStatus] in ASIHTTPRequest.o  "_kCFProxyTypeSOCKS", referenced from:      _kCFProxyTypeSOCKS$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kCFProxyTypeSOCKS$non_lazy_ptr)  "_kCFStreamPropertyHTTPAttemptPersistentConnection", referenced from:      _kCFStreamPropertyHTTPAttemptPersistentConnection$non_lazy_ptr inASIHTTPRequest.o     (maybe you meant: _kCFStreamPropertyHTTPAttemptPersistentConnection$non_lazy_ptr)  "_CFHTTPMessageCopyVersion", referenced from:      -[ASIHTTPRequest readResponseHeaders] in ASIHTTPRequest.o  "_CFHTTPAuthenticationCopyRealm", referenced from:      -[ASIHTTPRequest attemptToApplyProxyCredentialsAndResume] in ASIHTTPRequest.o      -[ASIHTTPRequest attemptToApplyCredentialsAndResume] in ASIHTTPRequest.o  "_CFHTTPMessageCopyAllHeaderFields", referenced from:      -[ASIHTTPRequest readResponseHeaders] in ASIHTTPRequest.o  "_CFHTTPMessageCreateRequest", referenced from:      -[ASIHTTPRequest main] in ASIHTTPRequest.o  "_kCFProxyHostNameKey", referenced from:      _kCFProxyHostNameKey$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kCFProxyHostNameKey$non_lazy_ptr)  "_kCFStreamPropertyHTTPProxyHost", referenced from:      _kCFStreamPropertyHTTPProxyHost$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kCFStreamPropertyHTTPProxyHost$non_lazy_ptr)  "_CFHTTPMessageCopyResponseStatusLine", referenced from:      -[ASIHTTPRequest readResponseHeaders] in ASIHTTPRequest.o  "_kCFStreamPropertyHTTPRequestBytesWrittenCount", referenced from:      _kCFStreamPropertyHTTPRequestBytesWrittenCount$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kCFStreamPropertyHTTPRequestBytesWrittenCount$non_lazy_ptr)  "_deflate", referenced from:      +[ASIHTTPRequest compressData:] in ASIHTTPRequest.o      +[ASIHTTPRequest compressDataFromSource:toDestination:] in ASIHTTPRequest.o  "_SCNetworkReachabilityCreateWithAddress", referenced from:      +[Reachability reachabilityWithAddress:] in Reachability.o  "_kCFErrorDomainCFNetwork", referenced from:      _kCFErrorDomainCFNetwork$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kCFErrorDomainCFNetwork$non_lazy_ptr)  "_kCFStreamSSLValidatesCertificateChain", referenced from:      _kCFStreamSSLValidatesCertificateChain$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kCFStreamSSLValidatesCertificateChain$non_lazy_ptr)  "_CFHTTPAuthenticationCreateFromResponse", referenced from:      -[ASIHTTPRequest attemptToApplyProxyCredentialsAndResume] in ASIHTTPRequest.o      -[ASIHTTPRequest attemptToApplyCredentialsAndResume] in ASIHTTPRequest.o  "_deflateEnd", referenced from:      +[ASIHTTPRequest compressData:] in ASIHTTPRequest.o      +[ASIHTTPRequest compressDataFromSource:toDestination:] in ASIHTTPRequest.o      +[ASIHTTPRequest compressDataFromSource:toDestination:] in ASIHTTPRequest.o      +[ASIHTTPRequest compressDataFromSource:toDestination:] in ASIHTTPRequest.o  "_UTTypeCopyPreferredTagWithClass", referenced from:      +[ASIHTTPRequest mimeTypeForFileAtPath:] in ASIHTTPRequest.o  "_kCFStreamPropertyHTTPSProxyHost", referenced from:      _kCFStreamPropertyHTTPSProxyHost$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kCFStreamPropertyHTTPSProxyHost$non_lazy_ptr)  "_kCFHTTPAuthenticationSchemeNTLM", referenced from:      _kCFHTTPAuthenticationSchemeNTLM$non_lazy_ptr in ASIAuthenticationDialog.o      _kCFHTTPAuthenticationSchemeNTLM$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kCFHTTPAuthenticationSchemeNTLM$non_lazy_ptr)  "_CFHTTPAuthenticationCopyMethod", referenced from:      -[ASIHTTPRequest attemptToApplyProxyCredentialsAndResume] in ASIHTTPRequest.o      -[ASIHTTPRequest attemptToApplyCredentialsAndResume] in ASIHTTPRequest.o  "_kCFHTTPAuthenticationAccountDomain", referenced from:      _kCFHTTPAuthenticationAccountDomain$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kCFHTTPAuthenticationAccountDomain$non_lazy_ptr)  "_UTTypeCreatePreferredIdentifierForTag", referenced from:      +[ASIHTTPRequest mimeTypeForFileAtPath:] in ASIHTTPRequest.o  "_CFNetworkCopySystemProxySettings", referenced from:      -[ASIHTTPRequest startRequest] in ASIHTTPRequest.o  "_SCNetworkReachabilityUnscheduleFromRunLoop", referenced from:      -[Reachability stopNotifier] in Reachability.o  "_kCFStreamPropertyHTTPProxyPort", referenced from:      _kCFStreamPropertyHTTPProxyPort$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kCFStreamPropertyHTTPProxyPort$non_lazy_ptr)  "_CFHTTPAuthenticationRequiresAccountDomain", referenced from:      -[ASIHTTPRequest findProxyCredentials] in ASIHTTPRequest.o      -[ASIHTTPRequest findCredentials] in ASIHTTPRequest.o      -[ASIHTTPRequest attemptToApplyProxyCredentialsAndResume] in ASIHTTPRequest.o      -[ASIHTTPRequest attemptToApplyCredentialsAndResume] in ASIHTTPRequest.o  "_SCNetworkReachabilityCreateWithName", referenced from:      +[Reachability reachabilityWithHostName:] in Reachability.o  "_SCNetworkReachabilitySetCallback", referenced from:      -[Reachability startNotifier] in Reachability.o  "_kCFHTTPAuthenticationPassword", referenced from:      _kCFHTTPAuthenticationPassword$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kCFHTTPAuthenticationPassword$non_lazy_ptr)  "_kCFHTTPVersion1_0", referenced from:      _kCFHTTPVersion1_0$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kCFHTTPVersion1_0$non_lazy_ptr)  "_kCFHTTPVersion1_1", referenced from:      _kCFHTTPVersion1_1$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kCFHTTPVersion1_1$non_lazy_ptr)  "_kCFStreamPropertySSLSettings", referenced from:      _kCFStreamPropertySSLSettings$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kCFStreamPropertySSLSettings$non_lazy_ptr)  "_kCFStreamErrorDomainHTTP", referenced from:      _kCFStreamErrorDomainHTTP$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kCFStreamErrorDomainHTTP$non_lazy_ptr)  "_CFReadStreamCreateForHTTPRequest", referenced from:      -[ASIHTTPRequest startRequest] in ASIHTTPRequest.o  "_kUTTagClassFilenameExtension", referenced from:      _kUTTagClassFilenameExtension$non_lazy_ptr in ASIHTTPRequest.o     (maybe you meant: _kUTTagClassFilenameExtension$non_lazy_ptr)ld: symbol(s) not foundcollect2: ld returned 1 exit status

新版的ASIHttpRequest代码结构修改很多，不再像之前那样分为ASIHTTPRequest和ASIHTTPRequestDemo两个文件夹。

只选取需要的代码加入到项目中后，发现编译后出现了很多错误。

原因是编译的时候需要加上一些类库

requires CFNetwork, SystemConfiguration, MobileCoreServices, and libz.

Edit: It also needs libxml2