clang used instead of gcc on my version of MacOS, prints different output for c compiler setup

For this section of the setup for MacOs for C Compiler:

This gives you the GCC or the GNU Compiler Collection. To test installation, within the Terminal application, type gcc and you should get the following:

1
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$ gcc
i686-apple-darwin11-llvm-gcc-4.2: no input files

However, I see:

Tamaras-MacBook-Pro:new-coder tamaralblood$ gcc
clang: error: no input files
Tamaras-MacBook-Pro:new-coder tamaralblood$

I believe this happens because MacOs defaults to calling clang when gcc is typed.
I think this section of the tutorial could be clearer if it mentioned, 'you may also see a different output, such as
$ gcc
clang: error: no input files
'

Without such verbiage, I thought I had made a mistake because I didn't see:
i686-apple-darwin11-llvm-gcc-4.2: no input files