In addition cel plugins fail to build. They give errors like this one:
LinkPlugin mgr_quests.csbundle
/usr/bin/ld: /Users/jeremybell/PS/CS/./out/macosxppc/debug/libs/libcrystalspace.a(timer.o) malformed object, illegal reference for -dynamic code (reference to a coalesced section (__TEXT,__textcoal_nt) from section (__TEXT,__text) relocation entry (1))
/usr/bin/ld: /Users/jeremybell/PS/CS/./out/macosxppc/debug/libs/libcrystalspace.a(timer.o) malformed object, illegal reference for -dynamic code (reference to a coalesced section (__TEXT,__textcoal_nt) from section (__TEXT,__text) relocation entry (3))
/usr/bin/ld: /Users/jeremybell/PS/CS/./out/macosxppc/debug/libs/libcrystalspace.a(timer.o) malformed object, illegal reference for -dynamic code (reference to a coalesced section (__TEXT,__textcoal_nt) from section (__TEXT,__text) relocation entry (

)
/usr/bin/ld: /Users/jeremybell/PS/CS/./out/macosxppc/debug/libs/libcrystalspace.a(timer.o) malformed object, illegal reference for -dynamic code (reference to a coalesced section (__TEXT,__textcoal_nt) from section (__TEXT,__text) relocation entry (10))
/usr/bin/ld: /Users/jeremybell/PS/CS/./out/macosxppc/debug/libs/libcrystalspace.a(timer.o) malformed object, illegal reference for -dynamic code (reference to a coalesced section (__TEXT,__textcoal_nt) from section (__TEXT,__text) relocation entry (17))
/usr/bin/ld: /Users/jeremybell/PS/CS/./out/macosxppc/debug/libs/libcrystalspace.a(timer.o) malformed object, illegal reference for -dynamic code (reference to a coalesced section (__TEXT,__textcoal_nt) from section (__TEXT,__text) relocation entry (19))
/usr/bin/ld: /Users/jeremybell/PS/CS/./out/macosxppc/debug/libs/libcrystalspace.a(timer.o) malformed object, illegal reference for -dynamic code (reference to a coalesced section (__TEXT,__textcoal_nt) from section (__TEXT,__text) relocation entry (24))
/usr/bin/ld: /Users/jeremybell/PS/CS/./out/macosxppc/debug/libs/libcrystalspace.a(timer.o) malformed object, illegal reference for -dynamic code (reference to a coalesced section (__TEXT,__textcoal_nt) from section (__TEXT,__text) relocation entry (26))
collect2: ld returned 1 exit status
export MACOSX_DEPLOYMENT_TARGET=10.4
g++ -bundle -o mgr_quests.csbundle ./out/macosxppc/debug/plugins/tools/quests/quests.o ./out/macosxppc/debug/plugins/tools/quests/reward_changeproperty.o ./out/macosxppc/debug/plugins/tools/quests/reward_debugprint.o ./out/macosxppc/debug/plugins/tools/quests/reward_inventory.o ./out/macosxppc/debug/plugins/tools/quests/reward_newstate.o ./out/macosxppc/debug/plugins/tools/quests/reward_sequence.o ./out/macosxppc/debug/plugins/tools/quests/reward_sequencefinish.o ./out/macosxppc/debug/plugins/tools/quests/seqop_debugprint.o ./out/macosxppc/debug/plugins/tools/quests/seqop_light.o ./out/macosxppc/debug/plugins/tools/quests/seqop_movepath.o ./out/macosxppc/debug/plugins/tools/quests/seqop_transform.o ./out/macosxppc/debug/plugins/tools/quests/trig_entersector.o ./out/macosxppc/debug/plugins/tools/quests/trig_inventory.o ./out/macosxppc/debug/plugins/tools/quests/trig_meshentersector.o ./out/macosxppc/debug/plugins/tools/quests/trig_meshsel.o ./out/macosxppc/debug/plugins/tools/quests/trig_propertychange.o ./out/macosxppc/debug/plugins/tools/quests/trig_sequencefinish.o ./out/macosxppc/debug/plugins/tools/quests/trig_timeout.o ./out/macosxppc/debug/plugins/tools/quests/trig_trigger.o -g3 -DCS_DEBUG -Wl,-framework,AppKit -Wl,-framework,Foundation -bundle -L/Users/jeremybell/PS/CS/./out/macosxppc/debug/libs -lcrystalspace -lz -lm -lmx -ldl -Wl,-multiply_defined,suppress -L/usr/local/lib -g3 -Wl,-framework,AppKit -Wl,-framework,Foundation -g3 -DCS_DEBUG -Wl,-framework,AppKit -Wl,-framework,Foundation
[edit: note that this fails to load even if MACOSX_DEPLOYMENT_TARGET is the original value]