question about sysconfdir

[Matthew R. MacIntyre]

Hi,

I want to have a configuration file in the sysconfdir for my program,
but if I put AC_DEFINE(CONFFILE, "$sysconfdir/file.conf"), I end up
with the path being "${prefix}/etc/file.conf" which is pretty
meaningless to C.  I've seen people hack it by just saying
"$prefix/etc/file.conf" in the configure.in, but this doesn't seem to
be the right thing to do. Should I do that, or is there a way to use
the sysconfdir?

Thanks for any help,

-matt