Question Warnings compiling with gcc 4.7.2

I don't think this is anything major, but I thought I'd post it anyways. its rather long, so I used a pastebin service.
on sprunge

Axanon wrote: I don't think this is anything major, but I thought I'd post it anyways. its rather long, so I used a pastebin service.
on sprunge

Pretty much telling you that the variables are set, but aren't being called anywhere.

Is there anything that can be done to get rid of the warnings? Is it even worth the effort? I'm assuming it IS nothing significant, right?

1:
A) Tell the compiler to not print warnings
OR
Fix them

2:
Yes and no...

3:
Many of the system functions force the programmer to take their return values and place them in a variable, preferably so that we can use that variable to better diagnose issues that may arise. A lot of the old code just assigns the variable, then forgets about it.

So it's not causing any harm, but it could be handled better. I've fixed a couple, but there are numerous occurances and each takes a chunk of time to address since it means fully interpreting each function before initiating a proper fix.

If everyone on the forum picked 1, 2, or 3 instances and fixed them, tbaMUD could be warning free pretty quickly. The difficulty of this task is low-moderate.

I looked at a few of them and will clean some up. But like Vatiken said even though some are not used they do serve a purpose. I'll post some of the odd ones and see what people think.

So the github shell compiler also lists all these warnings so I was going to start tackling them.

act.comm.c: In function ‘do_tell’:
act.comm.c:158:9: warning: variable ‘i’ set but not used [-Wunused-but-set-variable]
act.wizard.c: In function ‘mod_llog_entry’:
act.wizard.c:1855:27: warning: variable ‘j’ set but not used [-Wunused-but-set-variable]
act.wizard.c:1855:24: warning: variable ‘i’ set but not used [-Wunused-but-set-variable]
act.wizard.c: In function ‘add_llog_entry’:
act.wizard.c:1901:7: warning: variable ‘i’ set but not used [-Wunused-but-set-variable]
act.wizard.c: In function ‘clean_llog_entries’:
act.wizard.c:1940:16: warning: variable ‘j’ set but not used [-Wunused-but-set-variable]
act.wizard.c:1940:13: warning: variable ‘i’ set but not used [-Wunused-but-set-variable]
act.wizard.c: In function ‘list_llog_entries’:
act.wizard.c:1980:7: warning: variable ‘i’ set but not used [-Wunused-but-set-variable]
act.wizard.c: In function ‘do_last’:
act.wizard.c:2012:13: warning: variable ‘i’ set but not used [-Wunused-but-set-variable]
act.wizard.c: In function ‘do_wiznet’:
act.wizard.c:2155:8: warning: variable ‘any’ set but not used [-Wunused-but-set-variable]
act.wizard.c: In function ‘do_copyover’:
act.wizard.c:4130:7: warning: variable ‘i’ set but not used [-Wunused-but-set-variable]
act.wizard.c: In function ‘do_file’:
act.wizard.c:4268:10: warning: variable ‘j’ set but not used [-Wunused-but-set-variable]
act.wizard.c: In function ‘change_player_name’:
act.wizard.c:4583:21: warning: variable ‘j’ set but not used [-Wunused-but-set-variable]
boards.c: In function ‘board_save_board’:
boards.c:414:10: warning: variable ‘j’ set but not used [-Wunused-but-set-variable]
boards.c: In function ‘board_load_board’:
boards.c:453:10: warning: variable ‘j’ set but not used [-Wunused-but-set-variable]
db.c: In function ‘fread_action’:
db.c:159:9: warning: variable ‘buf1’ set but not used [-Wunused-but-set-variable]
db.c: In function ‘boot_social_messages’:
db.c:190:64: warning: variable ‘buf’ set but not used [-Wunused-but-set-variable]
db.c:189:68: warning: variable ‘i’ set but not used [-Wunused-but-set-variable]
db.c: In function ‘reset_time’:
db.c:798:7: warning: variable ‘i’ set but not used [-Wunused-but-set-variable]
db.c: In function ‘index_boot’:
db.c:916:31: warning: variable ‘i’ set but not used [-Wunused-but-set-variable]
dg_scripts.c: In function ‘do_vdelete’:
dg_scripts.c:2156:13: warning: variable ‘context’ set but not used [-Wunused-but-set-variable]
dg_scripts.c: In function ‘process_rdelete’:
dg_scripts.c:2264:13: warning: variable ‘context’ set but not used [-Wunused-but-set-variable]
genolc.c: In function ‘do_export_zone’:
genolc.c:313:16: warning: variable ‘i’ set but not used [-Wunused-but-set-variable]
ibt.c: In function ‘read_ibt’:
ibt.c:123:17: warning: variable ‘flgCheck’ set but not used [-Wunused-but-set-variable]
ibt.c: In function ‘save_ibt_file’:
ibt.c:290:36: warning: variable ‘last_ibt’ set but not used [-Wunused-but-set-variable]
ibt.c: In function ‘do_ibt’:
ibt.c:458:35: warning: variable ‘last_ibt’ set but not used [-Wunused-but-set-variable]
ibt.c: In function ‘do_oasis_ibtedit’:
ibt.c:759:59: warning: variable ‘buf3’ set but not used [-Wunused-but-set-variable]
limits.c: In function ‘run_autowiz’:
limits.c:201:9: warning: variable ‘i’ set but not used [-Wunused-but-set-variable]
medit.c: In function ‘do_oasis_medit’:
medit.c:48:9: warning: variable ‘buf3’ set but not used [-Wunused-but-set-variable]
msgedit.c: In function ‘load_messages’:
msgedit.c:78:19: warning: variable ‘buf’ set but not used [-Wunused-but-set-variable]
mud_event.c: In function ‘event_countdown’:
mud_event.c:57:22: warning: variable ‘ch’ set but not used [-Wunused-but-set-variable]
oedit.c: In function ‘do_oasis_oedit’:
oedit.c:56:9: warning: variable ‘buf3’ set but not used [-Wunused-but-set-variable]
prefedit.c: In function ‘do_oasis_prefedit’:
prefedit.c:897:9: warning: variable ‘buf3’ set but not used [-Wunused-but-set-variable]
protocol.c: In function ‘PerformHandshake’:
protocol.c:1531:11: warning: variable ‘bResult’ set but not used [-Wunused-but-set-variable]
qedit.c: In function ‘do_oasis_qedit’:
qedit.c:59:9: warning: variable ‘buf3’ set but not used [-Wunused-but-set-variable]
redit.c: In function ‘do_oasis_redit’:
redit.c:37:9: warning: variable ‘buf3’ set but not used [-Wunused-but-set-variable]
sedit.c: In function ‘do_oasis_sedit’:
sedit.c:53:9: warning: variable ‘buf3’ set but not used [-Wunused-but-set-variable]
sedit.c: In function ‘sedit_types_menu’:
sedit.c:357:21: warning: variable ‘shop’ set but not used [-Wunused-but-set-variable]
shop.c: In function ‘read_type_list’:
shop.c:1088:39: warning: variable ‘buf1’ set but not used [-Wunused-but-set-variable]
zedit.c: In function ‘zedit_disp_menu’:
zedit.c:415:19: warning: variable ‘room’ set but not used [-Wunused-but-set-variable]