Description of problem:

While compiling Firefox 3.0 rc1 gcc with the following error message:

c++ -o nsContentUtils.o -c -fvisibility=hidden -DMOZILLA_INTERNAL_API -
D_IMPL_NS_COM -DEXPORT_XPT_API -DEXPORT_XPTC_API -D_IMPL_NS_COM_OBSOLETE -
D_IMPL_NS_GFX -D_IMPL_NS_WIDGET -DIMPL_XREAPI -DIMPL_NS_NET -DIMPL_THEBES  -
DZLIB_INTERNAL -DOSTYPE=\"Linux2.6.15-1\" -DOSARCH=Linux -D_IMPL_NS_LAYOUT  -I. 
-I. -I../../../dist/include/xpcom -I../../../dist/include/string -I../../../
dist/include/dom -I../../../dist/include/gfx -I../../../dist/include/thebes -
I../../../dist/include/layout -I../../../dist/include/widget -I../../../dist/
include/view -I../../../dist/include/locale -I../../../dist/include/htmlparser -
I../../../dist/include/js -I../../../dist/include/webshell -I../../../dist/
include/necko -I../../../dist/include/mimetype -I../../../dist/include/
exthandler -I../../../dist/include/chardet -I../../../dist/include/caps -
I../../../dist/include/lwbrk -I../../../dist/include/uconv -I../../../dist/
include/docshell -I../../../dist/include/pref -I../../../dist/include/xpconnect 
-I../../../dist/include/unicharutil -I../../../dist/include/intl -I../../../
dist/include/webbrowserpersist -I../../../dist/include/imglib2 -I../../../dist/
include/plugin -I../../../dist/include/prefetch -I../../../dist/include/xuldoc -
I../../../dist/include/uriloader -I../../../dist/include/rdf -I../../../dist/
include/xultmpl -I../../../dist/include/util -I../../../dist/include/appshell -
I../../../dist/include/shistory -I../../../dist/include/editor -I../../../dist/
include/windowwatcher -I../../../dist/include/accessibility -I../../../dist/
include   -I../../../dist/include/content -I../../../dist/include/nspr     -
I../../../dist/sdk/include -I./../../events/src -I./../../xml/content/src -
I./../../xul/base/src -I./../../xul/content/src -I./../../html/content/src -
I./../../base/src -I./../../xbl/src -I./../../../layout/generic -I./../../../
layout/style -I./../../../dom/src/base -I./../../xml/document/src -I../../../
xpcom/io     -fPIC   -fno-rtti -fno-exceptions -Wall -Wconversion -Wpointer-
arith -Woverloaded-virtual -Wsynth -Wno-ctor-dtor-privacy -Wno-non-virtual-dtor 
-Wcast-align -Wno-long-long -pedantic -fno-strict-aliasing -fshort-wchar -
pthread -pipe  -DNDEBUG -DTRIMMED -Os -freorder-blocks -fno-reorder-functions -
finline-limit=50   -DMOZILLA_CLIENT -include ../../../mozilla-config.h -Wp,-
MD,.deps/nsContentUtils.pp nsContentUtils.cpp
nsContentUtils.cpp: In static member function ‘static PRInt32 
nsContentUtils::ComparePoints(nsINode*, PRInt32, nsINode*, PRInt32, PRBool*)’:
nsContentUtils.cpp:1545: internal compiler error: in merge_alias_info, at tree-
ssa-copy.c:235

Firefox was configured with the following options:

./configure --enable-optimisation --enable-application=browser


Version-Release number of selected component (if applicable):

gcc (GCC) 4.1.0 20060304 (Red Hat 4.1.0-3)