man.font.links string man.font.links Specifies font for links B The man.font.links parameter specifies the font for output of links (ulink instances and any instances of any element with an xlink:href attribute). The value of man.font.links must be either B or I, or empty. If the value is empty, no font formatting is applied to links. If you set man.endnotes.are.numbered and/or man.endnotes.list.enabled to zero (disabled), then you should probably also set an empty value for man.font.links. But if man.endnotes.are.numbered is non-zero (enabled), you should probably keep man.font.links set to B or IThe main purpose of applying a font format to links in most output formats it to indicate that the formatted text is “clickable”; given that links rendered in man pages are not “real” hyperlinks that users can click on, it might seem like there is never a good reason to have font formatting for link contents in man output. In fact, if you suppress the display of inline link references (by setting man.endnotes.are.numbered to zero), there is no good reason to apply font formatting to links. However, if man.endnotes.are.numbered is non-zero, having font formatting for links (arguably) serves a purpose: It provides “context” information about exactly what part of the text is being “annotated” by the link. Depending on how you mark up your content, that context information may or may not have value.. man.endnotes.list.enabled, man.endnotes.are.numbered