[MacPorts] #46700: ffmpeg: add openssl variant

[MacPorts]

#46700: ffmpeg: add openssl variant
--------------------------+----------------------
  Reporter:  eirnym@…     |      Owner:  devans@…
      Type:  enhancement  |     Status:  closed
  Priority:  Normal       |  Milestone:
 Component:  ports        |    Version:
Resolution:  wontfix      |   Keywords:
      Port:  ffmpeg       |
--------------------------+----------------------
Changes (by devans@…):

 * status:  assigned => closed
 * resolution:   => wontfix


Comment:

 Replying to [comment:5 eirnym@…]:
 > The rtmpdump depends on OpenSSL with GPL-2+ licence, so linking with
 OpenSSL doesn't add any restrictions for ffmpeg itself.

 The ffmpeg developers don't agree with you: they consider OpenSSL to have
 a nonfree license.  This is reflected
 in their configuration file.

 {{{
 enabled gpl && die_license_disabled_gpl nonfree openssl
 }}}

 which causes configure to die with the following message if --enable-
 openssl is asserted without --enable-nonfree.

 {{{
 openssl is incompatible with the gpl and --enable-free is not specified.
 }}}

 MacPorts generally agrees with this unless a specific exception has been
 granted by OpenSSL and refuses to
 distribute binary archives of ports if GPL is combined with OpenSSL.

 >
 > I know people who want licence purity on their systems and they don't
 want OS on their computers like Mac OS X or *BSD.

 Since most of ffmpeg is GPL licensed, adding OpenSSL decreases license
 purity rather than increasing it.  The ffmpeg port supports Darwin which
 may or may not include Mac OS X.

 >
 > I don't want to build anything which duplicates functionality if it
 possible: I don't like GnuTLS when it possible to replace it with OpenSSL,
 I don't like build SVN client if I we don't need to link with SVN
 libraries, etc.

 In this case, MacPorts, as it stands, probably doesn't meet your
 expectations but you are welcome to modify ports as you like for your own
 use.

 I'm going to pass on this request for the reasons stated above:  for
 ffmpeg, as a whole, openssl complicates rather than simplifies licensing
 issues and adds no additional functionality over gnutls and librtmp.

-- 
Ticket URL: <https://trac.macports.org/ticket/46700#comment:6>
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