On Mon, 23 Mar 2009, Girish Kolari wrote:

>> Note that the name of the lib used for this is "libssh2".
>
> Sorry that I missed to mention that I had used libssh2 and as I mentioned I
> could build curl command line tool could do SFTP, but libcurl generated in
> the build process does not detect SFTP.

configure is the script that checks for (a working) libssh2 and if it fails,
it will create a setup without it, yes.

Thus you need to figure out why configure fails to detect libssh2. Studying
the config.log and the specific tests where it checks for libssh2 is a good
first step.

If you can make sense out of it, extract the libssh2-related parts from
config.log and show us and we might be able to help.

-- 
  / daniel.haxx.se