OPM/opm-core — pull request #213 by rolk (2013-03-20 07:20:38+00:00)
Title: Prepend source directory to include path

If the dependencies have files with relative paths that are ambigious
to our own, we want our version to be the first candidate for inclusion.
This is a variant of the reason for why we always include the build
directory first (and still does).