Re: CFLAGS is for the user in GNU

[Karl Berry]

    The automake manual already mentions this,
    
I actually looked in the automake manual first.  And the reference I got
to first (don't know why) is the one in the `Program variables' node,
which says "Some variables are inherited from Autoconf".  So I went to
the Autoconf manual instead of looking further in automake.  Perhaps an
@xref{User Variables}?  Perhaps not.

    but yes, I agree that adding another sentence in the autoconf manual
    can't hurt.

Thanks.