ld: Unsatisfied symbol "options" in file ./libssh.a[hostfile.o]

[Damien Miller]

ssh-keygen doesn't have a config file, so it doesn't link against
anything that provides an options struct. You need to pass your new
flag in as an argument.

On Mon, 22 Feb 2010, kai_yang2008 wrote:

> Hi All,
> I have want to add a option in ssh_config to co-work with ldap.But when I am compiling , i was encountered a
> ld error, which says "cc -o ssh-keygen ssh-keygen.o -Wl,+nodefaultrpath -L. -Lopenbsd-compat/ -lssh -lopenbsd-compat  -lz -lnsl -lxnet -lsec -lgssapi_krb5 -lkrb5 -lpthread
> ld: Unsatisfied symbol "options" in file ./libssh.a[hostfile.o]
> 1 errors."
> The following is my codes:
> I have externed Options options like " extern Options options" in hostfile.c
>  
> ..........
> extern Options options
> ..........
> static HostStatus
> check_host_in_hostfile_by_key_or_type(const char *filename,
>     const char *host, const Key *key, int keytype, Key *found, int *numret)
> {
>         FILE *f;
>         char line[8192];
>         int linenum = 0;
>         u_int kbits;
>         char *cp, *cp2, *hashed_host;
>         HostStatus end_return;
>         debug3("check_host_in_hostfile: filename %s", filename);
>         /* Open the file containing the list of known hosts. */
>         f = fopen(filename, "r");
>         if (!f)
>         {
>                 if(options.usesshldaphostkey)
>                         return check_hostkey_in_ldap(host,key,HOST_NEW);
>                 else
> 
>                 return HOST_NEW;
> }
> .......
>  
> So any ideas about this?
> Thanks!
>  
> Kai Yang
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