In todays Matt Domsch rawhide rebuild report ogre3d failed to build:
http://linux.dell.com/files/fedora/FixBuildRequires/mock-results-core/x86_64/ogre-1.4.5-3.fc9.src.rpm/result/build.log

I've managed to reproduce this on F-8 by installing gcc from rawhide, it seems
that something in the gcc-4.1.2-33 -> 4.1.2-34 update breaks the compilation of
ogre3d.

With -34 it gives a whole list of these errors:
OgrePixelConversions.h:49: error: static data member
'<unnamed>::PixelBoxConverter<<unnamed>::A8R8G8B8toA8B8G8R8>::ID' used, but not
defined

(one for each pixel conversion combo)

I've checked the .h file causing the problem and I couldn't find anything
obviously wrong.

I will attach the troublesome.h file and a pre-processed version of the .cpp
file at which the compilation breaks.

The compile command causing the breakage is:
g++ -DHAVE_CONFIG_H -I. -I. -I../../OgreMain/include -I/usr/include/freetype2
-I../../OgreMain/include -DOGRE_NONCLIENT_BUILD -DOGRE_GUI_gtk
-I/usr/include/gtk-2.0 -I/usr/lib64/gtk-2.0/include -I/usr/include/atk-1.0
-I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/glib-2.0
-I/usr/lib64/glib-2.0/include -fvisibility=hidden -fvisibility-inlines-hidden
-DOGRE_GCC_VISIBILITY -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions
-fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC -MT
OgrePixelFormat.lo -MD -MP -MF .deps/OgrePixelFormat.Tpo -c OgrePixelFormat.cpp
 -fPIC -DPIC  -o .libs/OgrePixelFormat.o

And the .E file was generated with:
 g++ -DHAVE_CONFIG_H -I. -I. -I../../OgreMain/include -I/usr/include/freetype2
-I../../OgreMain/include -DOGRE_NONCLIENT_BUILD -DOGRE_GUI_gtk
-I/usr/include/gtk-2.0 -I/usr/lib64/gtk-2.0/include -I/usr/include/atk-1.0
-I/usr/include/cairo -I/usr/include/pango-1.0 -I/usr/include/glib-2.0
-I/usr/lib64/glib-2.0/include -fvisibility=hidden -fvisibility-inlines-hidden
-DOGRE_GCC_VISIBILITY -O2 -g -pipe -Wall -Wp,-D_FORTIFY_SOURCE=2 -fexceptions
-fstack-protector --param=ssp-buffer-size=4 -m64 -mtune=generic -fPIC -MT
OgrePixelFormat.lo -MD -MP -MF .deps/OgrePixelFormat.Tpo -E OgrePixelFormat.cpp
 -fPIC -DPIC > OgrePixelFormat.E