Hi all,

attached is REP134, which describes and justifies the 
catkin_make_isolated scripts that was introduced with Groovy.
It can also be read on github:
https://github.com/tkruse/rep/blob/repisolated/rep-0134.rst

This is an informational REP, so no voting is required, though comments 
are welcome.


catkin_make_isolated was necessary to allow building non-standard cmake 
projects within a catkin workspace. Such a project has a CMakeLists.txt, 
but does not use catkin macros. It still requires a package.xml to be 
build using catkin_make_isolated. catkin_make_isolated is currently only 
required to build workspaces containing pcl, opencv or flann from 
source, most ROS users should not require it. However, the isolation 
allows to detect certain errors in the build files that catkin by 
default misses, and can help everyone check their build files.

The implementation was done by William Woodall and Dirk Thomas, I just 
created the REP accordingly.


regards,
   Thibault