As part of QPID-619 [1]. The location of the developer script config.sh has changed from the source tree to the build tree.
The runnable config.sh is now built by cmake as part of the tree configuration. This allows the script to set the correct variables without using fallible heuristics. If this trips anyone up. or you have questions, comments etc. reply here (and/or on the JIRA itself). Andrew [1] https://issues.apache.org/jira/browse/PROTON-619
