Problems perl compiling zone

[zelgar]

After making it through about 1000 other errors, I get almost all the way through the perl make... and then this...

../common/EQPacket.h:105: undefined reference to `EQPacket::EQPacket(unsigned short, unsigned char const*, unsigned int)'
pathing.o(.text+0x12a7):../common/EQPacket.h:105: undefined reference to `EQApplicationPacket::SetOpcode(EmuOpcode)'
pathing.o(.text+0x12ae):../common/EQPacket.h:105: undefined reference to `EQApplicationPacket::default_opcode_size'
pathing.o(.text+0x130c):../common/EQPacket.h:105: undefined reference to `EQPacket::~EQPacket()'
collect2: ld returned 1 exit status
make: *** [zone] Error 1

(add about a million other errors of the same ilk, for every .o file.)

Any suggestions? I've blown all my coding knowledge at this point.