C dhcpctl linking error

[Sztrepka Pál]

2012-12-07 10:59 időpontban Sztrepka Pál ezt írta:

> nnetd.c:(.text.startup+0x1a): undefined reference to 
> `dhcpctl_initialize'
> nnetd.c:(.text.startup+0x46): undefined reference to
> `dhcpctl_new_authenticator'
> nnetd.c:(.text.startup+0x6a): undefined reference to 
> `dhcpctl_connect'
>
> I compile with this way:
>    gcc -Wall -O2   -c -o nnetd.o nnetd.c
>       It's ok, object file is created
>
> But, when i try linking whit this command:
>    gcc -Wall -O2 -ldhcpctl -lomapi -ldst nnetd.o -o nnetd
>       I get the above error.. :-(

Ok, my solution:

1. I compile from source (dhcp-4.2.4-P2)
2. then I copy from ../dhcpd-4.2.4-P2/bind/lib/ the 'libdns.a' and the 
'libisc.a' to /usr/local/lib/
   (libdhcpctl.a, libomapi.a, libdst.a is also created in this lib 
directory after 'make install')
3. and I compile and link my C code this method:
   gcc -Wall -O2 nnetd.o /usr/local/lib/libdhcpctl.a 
/usr/local/lib/libomapi.a /usr/local/lib/libdst.a 
/usr/local/lib/libdns.a /usr/local/lib/libisc.a -o nnetd

I think, this way not so elegant, but my executable (nnetd) is created, 
and working..
But I dont't understand why this exe so big? ( 4.9MB!! )
Is there a way to reduce this size?

-- 
  Sztrepka Pál