Return to “C/C++ Perspective”: click the icon in the upper-right corner of the window.
Right-click on “Project Explorer” and click “import”.
Select “SVN” → “Project from SVN”. “Next” → “Browse”.
Navigate to PhysicsAnalysis → SYSYPhys → SUSYTools → tags → SUSYTools-00-05-00-13
Select “Check out as a project with the name specified:”. The project will appear in the Project Explorer.
Go to src –> SUSYToolsAlg.cxx and double-click on the file.
Right-click on the project name. Select “New → Covert to a C/C++ Project”.
Select “C Project. Uncheck “Specify project type”.
Now the syntax checking, indexing, and autocomplete are enabled.