xorg dfport not using CFLAGS

I would like to have the xorg-* dfports use the CFLAGS that I have set
in /etc/make.conf.  I can not figure out where these are picked up.  I
tried putting the CFLAGS variable in DragonFly.cf and xorg.cf but I get
recursive variable errors because CFLAGS is apparently set someplace
else.  Does anyone have an idea about this?

Thanks.

-- 
Glenn Johnson <[e-mail]>