[Solved] Cannot build on Mac OS X 10.10

I'm trying to build a open source game called SuperTuxKart on Mac OS X 10.10, following the official instruction.
However, when I typed "cmake .. -DUSE_CPP2011=1" or "cmake .. -GXcode", I got error message:
failed to create symbolic link 'lib/libpng.pc': No such file or directory
failed to create symbolic link 'lib/libpng-config': No such file or directory
I have installed libpng1.6 by homebrew.
I have no idea how to love the problem.
Did anyone build STK on Mac OS X 10.10 successfully?
However, when I typed "cmake .. -DUSE_CPP2011=1" or "cmake .. -GXcode", I got error message:
failed to create symbolic link 'lib/libpng.pc': No such file or directory
failed to create symbolic link 'lib/libpng-config': No such file or directory
I have installed libpng1.6 by homebrew.
I have no idea how to love the problem.
Did anyone build STK on Mac OS X 10.10 successfully?