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Compiling a C / C ++ Application Using SDL in OS X, Binding Problem

I am trying to compile a program in C / C ++ that uses SDL in OS X 10.6.8, but I have some errors at the build stage, compiling the code, but I don’t like it because of some missing characters. Error:

Undefined symbols for architecture x86_64:
"_CFBundleGetMainBundle", referenced from: 
  -[SDLMain setupWorkingDirectory:] in libSDLmain.a(SDLMain.o)
  _main in libSDLmain.a(SDLMain.o)
"_CFBundleCopyBundleURL", referenced from:
  -[SDLMain setupWorkingDirectory:] in libSDLmain.a(SDLMain.o)
"_CFURLCreateCopyDeletingLastPathComponent", referenced from:
  -[SDLMain setupWorkingDirectory:] in libSDLmain.a(SDLMain.o)
"_CFURLGetFileSystemRepresentation", referenced from:
  -[SDLMain setupWorkingDirectory:] in libSDLmain.a(SDLMain.o)
"_CFRelease", referenced from:
  -[SDLMain setupWorkingDirectory:] in libSDLmain.a(SDLMain.o)

...

"_OBJC_CLASS_$_NSAutoreleasePool", referenced from:
  objc-class-ref in libSDLmain.a(SDLMain.o)
ld: symbol(s) not found for architecture x86_64
collect2: ld returned 1 exit status
make: *** [dist/linwarrior] Error 1

I checked with the command file, and the libraries are either only x86_64 or universal with versions i386 and x86_64.

Is there a way to determine what exactly causes this error? Is there a way to check the included libraries, or any way to help debug the problem?

I don't know if this helps, but this is what my Makefile creates, I deleted the file names to make it short, and the KNT flag is what I use for the preprocessor conditions:

/opt/local/bin/g++-mp-4.5 -DKNT=1 -Wp,-M,-MP,-MT,-MF, -std=c++0x -Wall -I source -O1 -funroll-loops -c -o

Thank.

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