Need gegl to build gimp, and can't build gegl

[Ofnuts]

There are two ways to rebuild from source: use a release tarball, or pull from Git. When you pull from git, unless you check out specific release tags, you get whatever was last committed by developers and sometimes they are missing things.... tarballs are usually safer. If you build from Git, then hang out on the IRC channels or the developer mailing lists, some one will likely explain the oopsie.

The fact that the whole code is being refactored into C++ doesn't help with the stability of random Git pulls.