minires undefined '___res_search'

[Igor Pechtchanski]

On Wed, 11 Feb 2004, King Lung Chiu wrote:

> Hi,
>
> I'm trying to port some code (KX509) to cygwin that needs to use librsolv.
> I've installed minires-devl-0.98-1, but make (of KX509) always fails with
> 'undefined reference to '___res_search' and '___dn_expand':
>
>  ...
>  gcc -o kx509   -g -O2  -DUSE_KRB5 kx509.o debug.o getcert.o\
>  get_kca_list.o
>  get_realm.o store_in_cc.o store_tkt.o ../lib/libkx.a -L/usr/lib -L/usr
>  -lcrypto -L/opt/krb5-1.3.1//lib -lkrb5 -lk5crypto -lcom_err
>  get_kca_list.o(.text+0xf9): In function `get_kca_list':
>  /opt/src/kx509/cygwin_w2k/client/../../src/client/get_kca_list.c:266:
>  undefined reference to `___res_search'
>  get_kca_list.o(.text+0x174):/opt/src/kx509/cygwin_w2k/client/../../src/\
>  client/get_kca_list.c:294: undefined reference to `___dn_expand'
>  ...
>  collect2: ld returned 1 exit status
>  make[1]: *** [kx509] Error 1
>  make[1]: Leaving directory `/opt/src/kx509/cygwin_w2k/client'
>
> I've set up the lib links as follows:
>
>  $ cd /usr/lib; ls -l libresolv* libminires.*
>  -rwxrwxrwx    1 guest  Users      453200 Jan 22 11:45 libminires.a
>  -rwxrwxrwx    1 guest  Users       21784 Jan 22 11:45 libminires.dll.a
>  lrwxrwxrwx    1 guest  Users         135 Feb 10 12:20 libresolv.dll.a -> /usr/lib/libminires.dll.a
>  lrwxrwxrwx    1 guest  Users       127 Feb 11 13:22 libresolv.a -> /usr/lib/libminires.a
>
> and the libraries seem to have the required functions:
>
>  $ nm -s libresolv.dll.a | grep ___res_search
>  ___res_search in d000016.o
>  __imp____res_search in d000016.o
>  00000000 T ___res_search
>  00000000 I __imp____res_search
>
>  $ nm -s libresolv.a | grep ___res_search
>  ___res_search in minires.o
>  00001b78 T ___res_search
>
> So how can I make gcc find ___res_search and ___dn_expand? Did I miss
> something?
>
> regards
> King Lung Chiu

I don't believe the above command even attempts to link to the "resolv"
library.  There is certainly no -lresolv anywhere on that line...
	Igor
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