compiler error building firefox on FreeBSD-6.0p1

[Fernan Aguero]

Hi!

I'm seeing the error below when building firefox. Just FYI,
this is a FreeBSD-6.0p1 box, recently upgraded from 5.4. 

World/kernel were rebuilt two days ago. All ports
(portupgrade -af) were rebuilt yesterday (firefox was not
installed then).

c++ -o nsSelectionState.o -c  -DMOZILLA_INTERNAL_API -DOSTYPE=\"FreeBSD6\" -DOSARCH=\"FreeBS
D\" -DBUILD_ID=0000000000  -I../../../dist/include/xpcom -I../../../dist/include/string -I..
/../../dist/include/dom -I../../../dist/include/locale -I../../../dist/include/layout -I../.
./../dist/include/content -I../../../dist/include/txmgr -I../../../dist/include/txtsvc -I../
../../dist/include/htmlparser -I../../../dist/include/necko -I../../../dist/include/pref -I.
./../../dist/include/view -I../../../dist/include/gfx -I../../../dist/include/widget -I../..
/../dist/include/unicharutil -I../../../dist/include/commandhandler -I../../../dist/include/
docshell -I../../../dist/include/editor -I../../../dist/include -I/usr/local/include/nspr -I
/usr/local/include -I/usr/local/include  -I../../../dist/sdk/include -I/usr/X11R6/include   
-fPIC  -I/usr/X11R6/include  -I/usr/X11R6/include  -I/usr/X11R6/include -fno-rtti -fno-excep
tions -Wall -Wconversion -Wpointer-arith -Wcast-align -Woverloaded-virtual -Wsynth -Wno-ctor
-dtor-privacy -Wno-non-virtual-dtor -Wno-long-long -fno-strict-aliasing -pipe -O -fshort-wch
ar -pipe  -DNDEBUG -DTRIMMED -O  -I/usr/X11R6/include  -I/usr/X11R6/include  -I/usr/X11R6/in
clude -DMOZILLA_CLIENT -include ../../../mozilla-config.h nsSelectionState.cpp
In file included from nsSelectionState.cpp:43:
../../../dist/include/xpcom/nsCOMPtr.h: In instantiation of `nsCOMPtr<nsIDOMEventReceiver>':
nsEditor.h:628:   instantiated from here
../../../dist/include/xpcom/nsCOMPtr.h:830: internal compiler error: Segmentation fault: 11
Please submit a full bug report,
with preprocessed source if appropriate.
See <URL:http://gcc.gnu.org/bugs.html> for instructions.
gmake[4]: *** [nsSelectionState.o] Error 1

The complete output is also available:
http://genoma.unsam.edu.ar/~fernan/freebsd/firefox.out.gz

Thanks in advance for any help,

Fernan