Re: 23.0.50; Undefined symbol: _res_9_init

[Peter Dyballa]

Am 19.10.2007 um 17:38 schrieb Peter Dyballa:

>         /sw/lib/odcctools/bin/ld: Undefined symbols:
>         _res_9_init

Compiling src/process.c with -E -dD I get in the output:

        #define HAVE_GETADDRINFO 1
        ...
        #define HAVE_RES_INIT 1
        ...
        #define res_init res_9_init     /* from resolv.h */
        ...
        int res_9_init (void);          /* from resolv.h */
        ...
	      res_9_init ();	/* line #3094 src/process.c in  
"make_network_process" */
                        /* could also happen on line #3144 when 
HAVE_GETADDRINFO is 0 */

Nm tells about libc:

        /usr/lib/libc.dylib(res_init.o):
        9004561c T _res_init

so it's obviously a mistake to re-define res_init as res_9_init. This  
re-definition happens in resolv.h in:

        #ifndef __BIND_NOSTATIC
        ...
        #define res_init                        res_9_init
        ...
        __BEGIN_DECLS
        ...
        int             res_init __P((void));
        ...
        __END_DECLS
        #endif

In the Fink project for compilation of netcat 0.6.1 CFLAGS is set to

        -D__BIND_NOSTATIC

Re-configuring with this among the CPPFLAGS used allows to create  
temacs. /usr/include/resolv.h is the only file that uses  
__BIND_NOSTATIC, src/process.c is the only file that includes  
resolv.h (found by compiling with -H), so on (some ?) Mac OS X src/ 
process.c should be compiled with an extra CPPFLAG or CFLAG - 
D__BIND_NOSTATIC when HAVE_RES_INIT is 1.

--
Greetings

  Pete

The future will be much better tomorrow.
                               -- George W. Bush