buildworld with gcc3 broken?

[Rahul Siddharthan <rsidd@xxxxxxxxx>]

I get the following error in buildworld with gcc3.  No error with gcc2.
Is gcc3 still unsupported, and for how long?  Everyone else in the
world seems to have switched to it long ago...

My /usr/src is a symlink to /home/rsidd/dflysrc/src -- don't know
whether that's part of the problem, but the path in the error
message below looks weird.

Rahul

===> include
cd /usr/home/rsidd/dflysrc/src/include; make buildincludes; make installincludes
creating osreldate.h from newvers.sh
setvar PARAMFILE /usr/home/rsidd/dflysrc/src/include/../sys/sys/param.h;  . /usr/home/rsidd/dflysrc/src/include/../sys/conf/newvers.sh;                  echo "$COPYRIGHT" > osreldate.h;                        echo "#ifdef _KERNEL" >> osreldate.h;                   echo '#error "osreldate.h must not be used in the kernel, use sys/param.h"' >> osreldate.h;  echo "#else" >> osreldate.h;              echo "#undef __DragonFly_version" >> osreldate.h;        echo "#define __DragonFly_version $RELDATE
" >> osrel
date.h;  echo "#ifdef __FreeBSD__" >> osreldate.h; echo "#undef __FreeBSD_version" >> osreldate.h;  echo "#define __FreeBSD_version 480101" >> osreldate.h;  echo "#endif" >> osreldate.h;                         echo "#endif" >> osreldate.h
===> include/arpa
===> include/protocols
===> include/rpc
===> include/rpcsvc
rpcgen -C -h -DWANT_NFS3 /usr/home/rsidd/dflysrc/src/include/rpcsvc/key_prot.x -o key_prot.h
cpp: in path [/usr/obj/usr/home/rsidd/dflysrc/src/ctools_i386_i386]/usr/libexec/gcc3/cpp: No such file or directory
*** Error code 1

Stop in /usr/home/rsidd/dflysrc/src/include/rpcsvc.
*** Error code 1