How do I produce LaTeX output from a single source.c.tex output file?
The file cxref.tex (or basename.tex if ‘-Nbasename’ is used) is the file that must be processed by LaTeX. All of the individual LaTeX files for the source files are included into this file. If an individual file source.c.tex needs to be processed then a copy of the file cxref.tex should be modified to include only the required source.c.tex file.