Apple's gcc refuses to run without accepting the license at runtime.

gistfile1.txt

>  sudo pip install ansible
...
checking for gcc... gcc

checking whether the C compiler works... no

configure: error: in `/private/tmp/pip_build_root/pycrypto':

configure: error: C compiler cannot create executables

# Note, NO CLUE that this failure was simply due to the need to accept the license.
# (I guess the script was capturing all gcc's output.)


[0] 21:24 mac13 /Users/kbennett/temp
>gcc


Agreeing to the Xcode/iOS license requires admin privileges, please re-run as root via sudo.



[69] 21:24 mac13 /Users/kbennett/temp
>sudo gcc


You have not agreed to the Xcode license agreements. You must agree to both license agreements below in order to use Xcode.

Hit the Enter key to view the license agreements at '/Applications/Xcode.app/Contents/Resources/English.lproj/License.rtf'
...