Error compiling gnome-core 0.27

[stealths usa net]

I've had an error in gnome-core while compiling:
In file included from /usr/local/gnome/include/orb/orbit_types.h:99,
                 from /usr/local/gnome/include/orb/orbit.h:37,
                 from gnome-panel.h:6,
                 from applet-lib.cc:8:
/usr/local/gnome/include/orb/corba_basic_sequences_type.h:31: redefinition of `struct CORBA_sequence_octet'
/usr/local/gnome/include/IIOP/../orb/iop.h:38: previous definition here
applet-lib.cc:32: syntax error before `::'
applet-lib.cc:64: `GNOME' is not a class or namespace
applet-lib.cc:64: `Applet_skel' is not a class or namespace
applet-lib.cc:64: confused by earlier errors, bailing out
make[2]: *** [applet-lib.lo] Error 1
make[2]: Leaving directory `/usr/src/gnome-core-0.27/panel'
make[1]: *** [all-recursive] Error 1
make[1]: Leaving directory `/usr/src/gnome-core-0.27'
make: *** [all-recursive-am] Error 2

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Anyone know how to fix this ?