lexyy.c:

  Update instructions about editing the files generated by flex and bison


innobase/pars/lexyy.c:
  Update instructions about editing the files generated by flex and bison

innobase/pars/lexyy.c

@@ -607,6 +607,9 @@ How to make the InnoDB parser and lexer C files:
 
 6. Remove the #include of unistd.h from about line 2500 of lexyy.c
 
+7. Add '#include "univ.i"' before #include <stdio.h> in lexyy.c
+   (Needed for AIX)
+
 These instructions seem to work at least with bison-1.28 and flex-2.5.4 on
 Linux.
 *******************************************************/