Before you do anything, first make sure openssl isn't restricted from usage by Iranian laws. If it isn't restricted, then you can proceed safely, but if not, then you may need to edit the SlackBuild to not use --with-ssl flags.
Try running:
first to see if it in installed. You should get this or similar:
Code:
openssl: /usr/bin/openssl /usr/X11R6/bin/openssl /usr/bin/X11/openssl /usr/X11/bin/openssl /usr/include/openssl /usr/man/man1/openssl.1.gz /usr/share/man/man1/openssl.1.gz /usr/X11/man/man1/openssl.1.gz
If it's not installed and you did not perform a full (recommended) installation try running a Slackware update:
Code:
slackpkg update
slackpkg install-new
or
Code:
slackpkg update
slackpkg upgrade-all
and see if it's listed. If it's not listed you can always download and install it manually off the Optical Media or the Slackware FTP server.