What to include / link for CFHTTPMessage and friends?

Hello, all ...
I'm developing an iPhone app and I want to use CFNetwork calls instead of NSURLConnection et al. However, I can't seem to get XCode to see the CFNetwork stuff:
Line Location AudioStreamer.m:427: error: 'CFHTTPMessage' undeclared (first use in this function)
Line Location AudioStreamer.m:427: error: syntax error before 'myRequest'
Line Location AudioStreamer.m:428: error: 'myRequest' undeclared (first use in this function)
Line Location AudioStreamer.m:428: warning: implicit declaration of function 'CFHTTPMessageSetHeaderFieldValue'
Line Location AudioStreamer.m:430: warning: initialization makes pointer from integer without a cast
Line Location AudioStreamer.m:430: warning: implicit declaration of function 'CFReadStreamCreateForHTTPRequest'
Foundation.framework is in the project -- what other framework do I need to add? I'm used to gcc's -i, -I, -l, -L options to specify this stuff
Regards,
John
Falling You - exploring the beauty of voice and sound
http://www.fallingyou.com

OK, I found CFHTTPMessage.h in CFNetwork, so i'm including that now. I still can't get XCode to find the symbols, though:
Line Location Tool:0: collect2: ld returned 1 exit status
Line Location Tool:0: "_CFHTTPMessageCreateRequest", referenced from:
Line Location Tool:0: symbol(s) not found
Line Location Tool:0: -[AudioStreamer startInternal] in AudioStreamer.o
Line Location Tool:0: "_CFReadStreamCreateForHTTPRequest", referenced from:
Line Location Tool:0: -[AudioStreamer startInternal] in AudioStreamer.o
Line Location Tool:0: "_CFHTTPMessageSetHeaderFieldValue", referenced from:
Line Location Tool:0: _kCFHTTPVersion1_1$non_lazy_ptr in AudioStreamer.o
Line Location Tool:0: "_kCFHTTPVersion1_1", referenced from:
Line Location Tool:0: -[AudioStreamer startInternal] in AudioStreamer.o
I've tried adding the CFNetwork framework, but ... there is no CFNetwork framework shown when I try to add it. I see specific CFNetwork frameworks for OSX, iPhone OS 2.0-2.2, simulator and device, but my understanding was that XCode finds the correct device-specific framework at link time i.e. if I choose CoreGraphics.framework, it links against the device-specific CoreGraphics.framework when I build for the device, and the simulator version when I build for the simulator.
What framework do I need to add to use CFHTTP-stuff? Where do I find it?
Regards,
John
Falling You - exploring the beauty of voice and sound
http://www.fallingyou.com

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