document the no-autoheader flag in CONFIGURE_STYLE
Index: bsd.port.mk.5 =================================================================== RCS file: /cvs/src/share/man/man5/bsd.port.mk.5,v retrieving revision 1.242 diff -u -p -r1.242 bsd.port.mk.5 --- bsd.port.mk.5 22 Mar 2010 22:02:08 -0000 1.242 +++ bsd.port.mk.5 31 Mar 2010 11:22:19 -0000 @@ -922,7 +922,10 @@ Add if port is an older autoconf port that does not recognize --sysconfdir. Add .Sq autoconf -if autoconf needs to be rerun first. +if autoconf needs to be rerun first, +but set +.Sq no-autoheader +to prevent autoheader from running. Add .Sq automake if automake may need to be rerun.
