This old bug is back, as per:

Name        : man2html-core
Version     : 1.6
Release     : 11.g.fc19


+++ This bug was initially created as a clone of Bug #526112 +++

man2html.c:add_links() appears to accept only a few limited
forms of inter-manpage references such as

.IR stapprobes.iosched (3stap),

and renders them as ordinary <I> text rather than <A HREF=....>.
The code responsible for this appears to accept only "[1-9]X[a-z]*",
i.e., effectively hard-coded for Xlib pages.

This hacky little patch generalizes it:

--- man2html.c~ 2007-08-05 15:15:23.000000000 -0400
+++ man2html.c  2009-09-28 15:46:30.000000000 -0400
@@ -170,8 +170,11 @@
                  && (isalnum(f[-1]) || f[-1]=='>')
                                 /* section is n or l or starts with a digit */
                  && strchr("123456789nl", f[1])
-                 && (g-f == 2 || (g-f == 3 && isdigit(f[1]) && isalpha(f[2]))
-                              || (f[2] == 'X' && isdigit(f[1])))
+                 && (g-f == 2
+                      || (g-f == 3 && isdigit(f[1]) && isalpha(f[2]))
+                      || (g-f == 4 && isdigit(f[1]) && isalpha(f[2]) && isalpha(f[3]))
+                      || (g-f == 5 && isdigit(f[1]) && isalpha(f[2]) && isalpha(f[3]) && isalpha(f[4]))
+                      || (g-f == 6 && isdigit(f[1]) && isalpha(f[2]) && isalpha(f[3]) && isalpha(f[4]) && isalpha(f[5])))
               ) {
                /* this might be a link */
                h=f-1;

--- Additional comment from Ivana Varekova on 2009-09-29 04:05:40 EDT ---

Hello, 
you are right but I'm not sure whether it is ok to have a man page in this sections (e.g. package man will not go through them they are not set in /etc/man.config configuration file). Is there any special reason to have it there?

--- Additional comment from Frank Ch. Eigler on 2009-09-29 12:37:44 EDT ---

The 3ssl etc. man pages are installed under man3, so man itself does
show them.

--- Additional comment from Ivana Varekova on 2009-09-30 02:01:39 EDT ---

Then the suffix should be only 3 not 3ssl, if there is a conflict then it should be solved another way, not to change suffixes.

--- Additional comment from Frank Ch. Eigler on 2009-09-30 10:35:24 EDT ---

Actually it is quite valid in manpage land to have textual
subsection names after the section numbers.  Many other unixes
do this too.  It's just that man2html appears to have been
accidentally hardcoded for "X..." subsection names.

--- Additional comment from Ivana Varekova on 2009-10-12 04:36:31 EDT ---

Thanks, fixed in man-1_6f-23_fc13 and man-1_6f-23_fc12.