[Bug pch/49579] Document how to use PCH with Automake

[redi at gcc dot gnu.org]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=49579

Jonathan Wakely <redi at gcc dot gnu.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|UNCONFIRMED                 |WAITING
   Last reconfirmed|                            |2011.06.29 19:42:53
     Ever Confirmed|0                           |1

--- Comment #3 from Jonathan Wakely <redi at gcc dot gnu.org> 2011-06-29 19:42:53 UTC ---
Please clarify the request, are you requesting documentation on how to tell
Automake to generate PCH for a program? use PCH while compiling a program?
Install PCH alongside a library's headers?