CPPFLAGS prob

[Patrick Welche]

automake by default pops

CPPFLAGS = @CPPFLAGS@

in Makefile.in

If I configure with:

./configure LDFLAGS="-L/usr/local/lib -Wl,-R/usr/local/lib" 
CPPFLAGS=-I/usr/local/include

Isn't it reasonable to expect for CPPFLAGS to be set in the Makefile?
It appears blank in my case. Am I missing something, or does an unset
CPPFLAGS in a Makefile imply that CPPFLAGS was empty when AC_OUTPUT was
called?

Cheers,

Patrick
(autoconf 2.59a, automake 1.8a)