[MacPorts] #63709: nmap: opportunistic use of libssh2

[MacPorts]

#63709: nmap: opportunistic use of libssh2
------------------------+--------------------
 Reporter:  i0ntempest  |      Owner:  (none)
     Type:  defect      |     Status:  new
 Priority:  Normal      |  Milestone:
Component:  ports       |    Version:  2.7.1
 Keywords:              |       Port:  nmap
------------------------+--------------------
 nmap seem to link libssh2 if it's present on the system, but the
 dependency is not declared in the portfile:
 {{{
 $ otool -L /opt/local/bin/nmap
 /opt/local/bin/nmap:
         /opt/local/lib/libpcre.1.dylib (compatibility version 4.0.0,
 current version 4.13.0)
         /opt/local/lib/libpcap.A.dylib (compatibility version 1.0.0,
 current version 1.10.1)
         /opt/local/lib/libssh2.1.dylib (compatibility version 2.0.0,
 current version 2.1.0)
         /opt/local/libexec/openssl11/lib/libssl.1.1.dylib (compatibility
 version 1.1.0, current version 1.1.0)
         /opt/local/libexec/openssl11/lib/libcrypto.1.1.dylib
 (compatibility version 1.1.0, current version 1.1.0)
         /opt/local/lib/libz.1.dylib (compatibility version 1.0.0, current
 version 1.2.11)
         /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current
 version 1311.0.0)
         /usr/lib/libc++.1.dylib (compatibility version 1.0.0, current
 version 1200.3.0)
 }}}

 Should probably add a libssh2 variant.

-- 
Ticket URL: <https://trac.macports.org/ticket/63709>
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