Having trouble with Makefile on a heavily modified DoT code

I know that the DoT code is no longer supported, however I am in need of some advice on how to get old DoT code to compile and make on newer servers. I can get it to compile, but when it comes to makefile, I get multiple definition, and undefined reference errors when it had compiled and makefile'd fine on the old server. Thank you very much in advance.

Things we need from you:

Link to the code and build files.

Description of both your old and new servers including what kind of CPU they have and what operating system name and version they use.

What commands you tried to run, where you tried to run them from, and what output messages they produce.

Unfortunately I'm unable to provide a link to the code. The previous server used Debian, the one that I'm on now is Linux, and hosted through Third Generation hosting. We're unsure what version the code is, however the server owners stated that they were able to get it to compile under GCC 4.1, I'm not having any luck however. White spaces were removed, and this is about 100 lines shorter than the original error screen I had. I can provide the file contents if needed, just trying not to blow this forum up and figured that someone might have come across these same kind of errors when trying to convert and could maybe point me in the right direction on where to look to try to fix it or if there is something that I need for my compiler that I don't have. Thank you!

/dawn/src$ make
g++ -c -Wall -g -O com_time.cpp -o obj/com_time.o
rm -f ../dawn
g++ -g -O -lz -o ../dawn \
(all obj files created here) com_time.o
obj/alias.o: In function `do_nickname(char_data*, char*)':
/dawn/src/alias.cpp:320: multiple definition of `do_nickname(char_data*, char*)'
obj/alias.o:/dawn/src/alias.cpp:320: first defined here
obj/alias.o: In function `do_unalias(char_data*, char*)':
/dawn/src/alias.cpp:264: multiple definition of `do_unalias(char_data*, char*)'
obj/alias.o:/dawn/src/alias.cpp:264: first defined here
obj/alias.o: In function `do_alias(char_data*, char*)':
/dawn/src/alias.cpp:161: multiple definition of `do_alias(char_data*, char*)'
obj/alias.o:/dawn/src/alias.cpp:161: first defined here
obj/alias.o: In function `substitute_alias(connection_data*, char*)':
/dawn/src/alias.cpp:27: multiple definition of `substitute_alias(connection_data*, char*)'
obj/alias.o:/dawn/src/alias.cpp:27: first defined here
obj/com_time.o: In function `get_compile_time(bool)':
/dawn/src/com_time.cpp:15: multiple definition of `get_compile_time(bool)'
obj/com_time.o:/dawn/src/com_time.cpp:15: first defined here
obj/com_time.o: In function `do_compile_time(char_data*, char*)':
/dawn/src/com_time.cpp:58: multiple definition of `do_compile_time(char_data*, char*)'
obj/com_time.o:/dawn/src/com_time.cpp:58: first defined here
obj/act_comm.o: In function `do_report(char_data*, char*)':
/dawn/src/act_comm.cpp:4298: undefined reference to `do_osay(char_data*, char*)'
obj/act_comm.o: In function `do_immerse(char_data*, char*)':
/dawn/src/act_comm.cpp:5997: undefined reference to `do_osay(char_data*, char*)'
/dawn/src/act_comm.cpp:5998: undefined reference to `do_odeaf(char_data*, char*)'
/dawn/src/act_comm.cpp:6004: undefined reference to `do_osay(char_data*, char*)'
/dawn/src/act_comm.cpp:6005: undefined reference to `do_odeaf(char_data*, char*)'
obj/act_comm.o: In function `quit_char(char_data*, char*, bool, bool)':
/dawn/src/act_comm.cpp:3094: undefined reference to `do_disguise(char_data*, char*)'
obj/act_info.o: In function `do_meditate(char_data*, char*)':
/dawn/src/act_info.cpp:13641: undefined reference to `element_table'
/dawn/src/act_info.cpp:13675: undefined reference to `element_table'
/dawn/src/act_info.cpp:13695: undefined reference to `element_table'
obj/ai.o: In function `thief_ai(char_data*, char_data*)':
/dawn/src/ai.cpp:595: undefined reference to `do_lunge(char_data*, char*)'
obj/handler.o: In function `affect_remove_things(char_data*, int)':
(continued in next post)

(continued errors when Makefile)

dawn/src/handler.cpp:2303: undefined reference to `do_fakerace(char_data*, char*)'
obj/interp.o:(.data+0x1508): undefined reference to `do_otell(char_data*, char*)'
obj/interp.o:(.data+0x1588): undefined reference to `do_oreply(char_data*, char*)'
obj/interp.o:(.data+0x1908): undefined reference to `do_osay(char_data*, char*)'
obj/interp.o:(.data+0x1dc8): undefined reference to `do_alia(char_data*, char*)'
obj/interp.o:(.data+0x37c8): undefined reference to `do_camouflage(char_data*, char*)'
obj/interp.o:(.data+0x3808): undefined reference to `do_camouflage(char_data*, char*)'
obj/interp.o:(.data+0x4c48): undefined reference to `do_disguise(char_data*, char*)'
obj/interp.o:(.data+0x4e08): undefined reference to `do_doorway(char_data*, char*)'
obj/interp.o:(.data+0x5088): undefined reference to `do_decipher(char_data*, char*)'
obj/interp.o:(.data+0x5848): undefined reference to `do_familiar(char_data*, char*)'
obj/interp.o:(.data+0x7b88): undefined reference to `do_lunge(char_data*, char*)'
obj/interp.o:(.data+0x8dc8): undefined reference to `do_odeaf(char_data*, char*)'
obj/interp.o:(.data+0x8e88): undefined reference to `do_osay(char_data*, char*)'
obj/interp.o:(.data+0x8ec8): undefined reference to `do_osayto(char_data*, char*)'
obj/interp.o:(.data+0x9588): undefined reference to `do_plant(char_data*, char*)'
obj/interp.o:(.data+0x98c8): undefined reference to `do_powerfocus(char_data*, char*)'
obj/interp.o:(.data+0x9908): undefined reference to `do_powertransfer(char_data*, char*)'
obj/interp.o:(.data+0xb708): undefined reference to `do_shadowfold(char_data*, char*)'
obj/interp.o:(.data+0xb748): undefined reference to `do_shadowveil(char_data*, char*)'
obj/interp.o:(.data+0xb788): undefined reference to `do_shadowwalk(char_data*, char*)'
obj/interp.o:(.data+0xc088): undefined reference to `do_spackle(char_data*, char*)'
obj/interp.o:(.data+0xcc08): undefined reference to `do_oatell(char_data*, char*)'
obj/interp.o:(.data+0xcc48): undefined reference to `do_otell(char_data*, char*)'
obj/magic_tr.o: In function `spell_shapeshift(int, int, char_data*, void*, int)':
/dawn/src/magic_tr.cpp:47: undefined reference to `do_fakerace(char_data*, char*)'
obj/magic.o: In function `check_raise_element(char_data*, int, bool, int)':
/dawn/src/magic.cpp:2561: undefined reference to `element_table'
/dawn/src/magic.cpp:2570: undefined reference to `element_table'
obj/oedit.o: In function `show_obj_values(char_data*, obj_index_data*)':
/dawn/src/oedit.cpp:597: undefined reference to `element_table'
obj/oedit.o: In function `set_obj_values(char_data*, obj_index_data*, int, char*)':
/dawn/src/oedit.cpp:1726: undefined reference to `element_table'
/dawn/src/oedit.cpp:1735: undefined reference to `element_table'
obj/update.o: In function `char_update()':
/dawn/src/update.cpp:3537: undefined reference to `do_shadowveil(char_data*, char*)'
collect2: ld returned 1 exit status
make: *** [dawn] Error 1

I tried to compile DoT recently, to help someone else.

I got so many error messages that, in the end, I just gave up.

It ought to work, after all the server compiled and ran fine in the past.

However when code isn’t maintained for a few years it can suffer from problems because the compiler-writers tighten up the rules, generally being a good idea because that helps catch problems caused by ambiguous code.

I mention on this page that nothing much has happened since 2009 (12 years ago).

In my case, I wasn’t strongly motivated enough to spend days to work out what the issues were. If you are keen to get it working, then you can probably sort things out. :)

You seem to have problems with both multiple definitions of functions, and others not being defined at all. If you can solve one of those you can probably solve all of them.

Try doing a global search (eg. using grep) to find what is causing these.

That's kind of what has me stumped to be honest. The undefined ones, are defined, but maybe not in a way the compiler wants them to be. I'm not going to give up though, and will do what you suggest. Thank you. :)

edited to add: Could this be a link complaint and not a case of multiple or undefined definitions?

Example of my confusion - First line is what it spits out when doing a makefile. The rest is everywhere nickname appears in the code. I can only find it defined once. I'm pretty new to all of this, so any advice on where to go from here would be seriously appreciated. I came across something that said that linker errors could cause this, is that the case here? I'm not certain as it compiled before.