Added SEE ALSO section

man3/cfree.3

@@ -103,3 +103,5 @@ The 3-argument version of
 .BR cfree ()
 as used by SCO conforms to the iBCSe2 standard:
 Intel386 Binary Compatibility Specification, Edition 2.
+.SH SEE ALSO
+.BR malloc (3)

man7/feature_test_macros.7

@@ -233,3 +233,5 @@ These macros have names prefixed by two underscores (e.g., __USE_MISC).
 Programs should \fInever\fP define these macros directly:
 instead, the appropriate feature test macro(s) from the
 list above should be employed.
+.SH
+.BR standards (7)

man8/ldconfig.8

@@ -168,3 +168,6 @@ File containing an ordered list of libraries found in the directories
 specified in
 .IR /etc/ld.so.conf .
 .PD
+.SH
+.BR ldd (1),
+.BR ld.so (8)