Open source software that do not compile out of the box

This is the first of a long list of open source software that I decided to review.

The point is: how many open source softwares compile out of the box, without changing any setting in the Xcode project?

The examined case is GitX. GitX is the only Mac OS X native open source frontend for Git.
I tried the experimental branch from brotherbard fork.

If I try pressing Run button or Archive, the software does not compile, and Xcode displays a sheet view with the following error message.

The run destination My Mac 64-bit is not valid for Running the scheme 'GitX'.

The scheme 'GitX' contains no buildables that can be built for the SDKs supported by the run destination My Mac 64-bit. Make sure your targets all specify SDKs that are supported by this version of Xcode.

I will find a solution, soon or later, but, until that, the software does not work. But situations like this are very far from Apple vision and philosophy, for a Mac User (or developer) like me. Software should work/compile, out of the box.

Stay tuned.