to determine interdependencies in the list of object files and library archives specified on the command line. The
utility outputs a list of file names where the first file contains a symbol which is defined by the second file.
The output is normally used with tsort(1) when a library is created to determine the optimum ordering of the object modules so that all references may be resolved in a single pass of the loader.
When linking static binaries, lorder and tsort(1) can be used to properly order library archives automatically.