Trouble upgrading math/fftw3 on 6.4-STABLE

[Leslie Jensen]

Clint Olsen skrev:
> I got this message:
> 
> ===>    Verifying install for gfortran43 in /usr/ports/lang/gcc43
> Making GCC 4.3.4.20090524 for FreeBSD 6.4  target=i386-portbld-freebsd6.4
> You need to increase the datasize limit to at least 700000 (and set
> kern.maxdsiz="734003200" in /boot/loader.conf) to build with Java
> support.
> *** Error code 1
> 
> 
> Ok, so I added the appropriate flag to /boot/loader.conf, however I wanted
> to use sysctl to update the parameter without booting.  However, even
> though the parameter is listed in /boot/defaults/loader.conf, sysctl won't
> accept this:
> 
> # sysctl kern.maxdsiz 734003200
> sysctl: unknown oid 'kern.maxdsiz'o
> 
> Is there a way to change this w/o rebooting?  Am I even using sysctl
> correctly?
> 
> Thanks,
> 
> -Clint

I have the same problem on a 7.2-RELEASE. I wrote about it some weeks 
ago but I got no working answers. I'm considering reinstalling all ports 
that gcc depends on but I haven't had the time yet.
/Leslie