Re: ./configure ERROR!

[Todd Wease <twease () sourcefire com>]

Hi Curtis,

A few things to check.

Is there a file named libdl.so or similar in /lib or /usr/lib?

Try compiling and running the following with
$ gcc -rdynamic dl_test.c -ldl
$ ./a.out

#include <stdio.h>
#include <dlfcn.h>
#include <stdlib.h>

int main(int argc, char **argv)
{
    void *handle;
    double (*cosine)(double);
    char *error;

    handle = dlopen ("libm.so", RTLD_LAZY);
    if (!handle)
    {
        fprintf (stderr, "%s\n", dlerror());
        exit(1);
    }

    cosine = dlsym(handle, "cos");
    if ((error = dlerror()) != NULL)
    {
        fprintf (stderr, "%s\n", error);
        exit(1);
    }

    printf ("%f\n", (*cosine)(2.0));
    dlclose(handle);
    return 0;
}


I think this library is included with glibc.  Make sure you have that
installed.

Can you configure and compile Snort without the MySQL switches to
configure?  If you can, make sure you have all of the MySQL libs and
headers installed.  Your MySQL lib and include dirs should look
something like the following.

[twease@desktop: ~] $ ls /usr/lib/mysql/
libdbug.a
libheap.a
libmyisam.a
libmyisammrg.a
libmysqlclient.a
libmysqlclient_r.a
libmysqlclient_r.so
libmysqlclient_r.so.15
libmysqlclient_r.so.15.0.0
libmysqlclient.so
libmysqlclient.so.15
libmysqlclient.so.15.0.0
libmystrings.a
libmysys.a
libvio.a
mysqlbug
mysql_config

[twease@desktop: ~] $ ls /usr/include/mysql/
chardefs.h        mysqld_error.h
decimal.h         mysql_embed.h
errmsg.h          mysql.h
history.h         mysql_time.h
keycache.h        mysql_version.h
keymaps.h         my_sys.h
m_ctype.h         my_xml.h
m_string.h        raid.h
my_alloc.h        readline.h
my_attribute.h    rlmbutil.h
my_config.h       rlprivate.h
my_config_i386.h  rlshell.h
my_dbug.h         rltypedefs.h
my_dir.h          sql_common.h
my_getopt.h       sql_state.h
my_global.h       sslopt-case.h
my_list.h         sslopt-longopts.h
my_net.h          sslopt-vars.h
my_no_pthread.h   tilde.h
my_pthread.h      typelib.h
mysql_com.h       xmalloc.h
mysqld_ername.h


Todd


Curtis LaMasters wrote:
> I am getting an error when running ./configure on a freshly installed
> Suse 10.3 system.  The error is:
>
> ERROR!  programmatic interface to dynamic link loader not found.  Cannot
> use dynamic plugin libraries.
>
> It follows these two lines:
>
> checking for dlsym in -ldl... no
> checking for dlsym in -lc... no
>
> I am trying to install Snort with MySQL support.  Any ideas?
>
>
> -- 
> Curtis LaMasters
> http://www.curtis-lamasters.com
> http://www.builtnetworks.com
>
>
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