link error: undefined reference

Environment is Windows XP, gcj 4.4.0, compiling under MSYS
The final error I have is:

C:\DOCUME~1\Keith\LOCALS~1\Temp\ccXVrvPx.o:cc8hZGFd.i:(.text+0x29): 
undefined reference to `com::performanceplanningsystem::ui::PPS::class$'
collect2: ld returned 1 exit status

The compile line is

gcj -fjni --main=com.performanceplanningsystem.ui.PPS 
--classpath=/Croot/jprojects/pps/dist/lib/pps.jar:/Croot/jprojects/pps/dist/lib/pentium.jar:/Croot/jprojects/pps/dist/lib/org.eclipse.ui.workbench_3.5.0.I20090603-2000.jar:/Croot/jprojects/pps/dist/lib/org.eclipse.swt.win32.win32.x86_3.5.0.v3550b.jar:/Croot/jprojects/pps/dist/lib/org.eclipse.osgi_3.5.0.v20090520.jar:/Croot/jprojects/pps/dist/lib/org.eclipse.jface_3.5.0.I20090525-2000.jar:/Croot/jprojects/pps/dist/lib/org.eclipse.equinox.common_3.5.0.v20090520-1800.jar:/Croot/jprojects/pps/dist/lib/org.eclipse.core.runtime_3.5.0.v20090525.jar:/Croot/jprojects/pps/dist/lib/org.eclipse.core.commands_3.5.0.I20090525-2000.jar:/Croot/jprojects/pps/dist/lib/mail.jar:/Croot/jprojects/pps/dist/lib/jRegistryKey.jar:/Croot/jprojects/pps/dist/lib/ArciMathEval.jar:/Croot/jprojects/pps/dist/lib/activation.jar:/Croot/eclipse-SDK-3.5-win32/eclipse/plugins/org.eclipse.equinox.registry_3.4.100.v20090520-1800.jar:/Croot/eclipse-SDK-3.5-win32/eclipse/plugins/org.eclipse.core.expressions_3.4.100.v20090429-1800.jar:/Croot/eclipse-SDK-3.5-win32/eclipse/plugins/org.eclipse.core.jobs_3.4.100.v20090429-1800.jar:/Croot/eclipse-SDK-3.5-win32/eclipse/plugins/org.eclipse.equinox.preferences_3.2.300.v20090520-1800.jar:/Croot/eclipse-SDK-3.5-win32/eclipse/plugins/com.ibm.icu_4.0.1.v20090415.jar:/Croot/eclipse-SDK-3.5-win32/eclipse/plugins/org.eclipse.core.databinding.property_1.2.0.I20090526-2000.jar:/Croot/eclipse-SDK-3.5-win32/eclipse/plugins/org.eclipse.help_3.4.0.v20090526.jar:/Croot/eclipse-SDK-3.5-win32/eclipse/plugins/org.eclipse.jface.databinding_1.3.0.I20090525-2000.jar:/Croot/eclipse-SDK-3.5-win32/eclipse/plugins/org.eclipse.core.databinding.observable_1.2.0.I20090604-2000.jar:/Croot/eclipse-SDK-3.5-win32/eclipse/plugins/org.eclipse.core.contenttype_3.4.0.v20090429-1800.jar:/Croot/eclipse-SDK-3.5-win32/eclipse/plugins/org.eclipse.core.runtime.compatibility.auth_3.2.100.v20090413.jar:/Croot/eclipse-SDK-3.5-win32/eclipse/plugins/org.eclipse.equinox.app_1.2.0.v20090520-1800.jar:/Croot/eclipse-SDK-3.5-win32/eclipse/plugins/org.eclipse.core.databinding_1.2.0.I20090604-2000.jar 
-o PPS.exe -L./lib -llibpps -lunikey -ldwg  -llibactivation 
-llibjRegistryKey -llibmail -llibpentium 
-lliborg.eclipse.jface_3.5.0.I20090525-2000 -llibswtimageloader 
-lliborg.eclipse.swt.win32.win32.x86_3.5.0.v3550b 
-lliborg.eclipse.ui.workbench_3.5.0.I20090603-2000 
-lliborg.eclipse.osgi_3.5.0.v20090520 
-lliborg.eclipse.core.commands_3.5.0.I20090525-2000-lliborg.eclipse.core.databinding.property_1.2.0.I20090526-2000 
-lliborg.eclipse.core.runtime_3.5.0.v20090525 
-lliborg.eclipse.equinox.common_3.5.0.v20090520-1800-lliborg.eclipse.equinox.registry_3.4.100
.v20090520-1800 -lliborg.eclipse.core.expressions_3.4.100.v20090429-1800 
-lliborg.eclipse.core.jobs_3.4.100.v20090429-1800 
-lliborg.eclipse.equinox.preferences_3.2.300.v20090520-1800 
-llibcom.ibm.icu_4.0.1.v20090415-lliborg.eclipse.core.databinding.property_1.2.0.I20090526-2000 
-lliborg.eclipse.help_3.4.0.v20090526 
-lliborg.eclipse.jface.databinding_1.3.0.I20090525-2000 
-lliborg.eclipse.core.databinding.observable_1.2.0.I20090604-2000 
-lliborg.eclipse.core.contenttype_3.4.0.v20090429-1800 
-lliborg.eclipse.core.runtime.compatibility.auth_3.2.100.v20090413 
-lliborg.eclipse.equinox.app_1.2.0.v20090520-1800 
-lliborg.eclipse.core.databinding_1.2.0.I20090604-2000 -mwindows 
-Wl,--enable-auto-import

com/performanceplanningsystem/ui/PPS.class is compiled into 
com_performanceplanningsystem_ui_PPS.o
and archived in lib/libPPS.lib

The compile flags for PPS.class are  -O0 -m32 -fjni -findirect-dispatch

Do you have any suggestions about what I should change or look for to 
find my error?