Finaly i was able to solve most of my errors, now only 1 error & 1 warning left

In file included from /usr/include/signal.h:358,
from logtodb.h:16,
from addalias.c:1:
/usr/include/bits/sigthread.h:36: error: storage class specified for parameter âtype nameâ
addalias.c: In function âconnect_mysqlâ:
addalias.c:222: warning: assignment makes pointer from integer without a cast

please help now.....

Try using an older compiler e.g. :
# yum install compat-gcc-34-c++

And use this 'make' command : make CC=gcc34 CXX=g++34


And please provide a link to the 'addalias' source code,
you are using.
.......