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+Cxref is a program that will produce documentation (in LaTeX, HTML,
+RTF or SGML) including cross-references from C program source code.
+It has been designed to work with ANSI C, incorporating K&R, and most
+popular GNU extensions.
+
+The documentation for the program is produced from comments in the
+code that are appropriately formatted. The cross referencing comes
+from the code itself and requires no extra work.