DEPS (formerly known as graph-includes) is a set of tools and libraries which allows users to extract dependency information from arbitrary material (e.g. program source files), apply various transformations to this graph, and draw it. It is typically used as helper tool for a refactoring effort, to create a graph of dependencies between groups of source files. Readability and usability of the dependency graphs are currently improved by customizable grouping of several source files into a single node, coloring of nodes belonging to given groups, and transitive reduction of the graph.
CScout is a source code analyzer and refactoring browser for collections of C programs. It can process workspaces of multiple projects, mapping the complexity introduced by the C preprocessor back into the original C source code files. CScout performs an analysis of C source code that is more detailed and accurate than current compilers and linkers, as it takes into account the identifier scopes introduced by the C preprocessor and the C language proper scopes and namespaces.