[MacPorts] #52041: go-1.4 @1.4.3_0: build fails on Sierra

[MacPorts]

#52041: go-1.4 @1.4.3_0: build fails on Sierra
----------------------+-----------------------------
  Reporter:  chris@…  |      Owner:  ciserlohn@…
      Type:  defect   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.3.4
Resolution:           |   Keywords:  sierra haspatch
      Port:  go-1.4   |
----------------------+-----------------------------

Comment (by ryandesign@…):

 Replying to [comment:26 ethansherriff@…]:
 > Replying to [comment:15 ryandesign@…]:
 > > Doesn't it already do that? It has a runtime dependency on go-1.4, so
 if go-1.4 is not yet installed, it will be installed first. (Granted, it
 should be a library dependency, not a runtime dependency, since it is also
 needed at build time, not just at runtime).
 >
 > `go` (from versions 1.5 upwards) only depends on `go-1.4` if being built
 from source, and this is only a build time dependancy.

 Christoph, do you remember why, in closing #48940, you made go-1.4 a
 runtime dependency, rather than build-time dependency as had been proposed
 in attachment:ticket:48940:Portfile-go.diff?

 > What I meant to say was that, if someone installs `go` and removes
 `go-1.4`, `go-1.4` would be (unnecessarily) reinstalled if the `go` port
 needed to be upgraded.

 In the go port's current state, a user who tries to uninstall go-1.4
 cannot do so:

 {{{
 $ sudo port uninstall go-1.4
 --->  Unable to uninstall go-1.4 @1.4.3_0, the following ports depend on
 it:
 --->    go @1.7_0
 Error: Failed to uninstall go-1.4: Please uninstall the ports that depend
 on go-1.4 first.
 Error: See
 /opt/local/var/macports/logs/_opt_local_var_macports_registry_portfiles_go-1.4-1.4.3_0_86ab4a8314cc0f60fb001e57c331230040cdff8c6728f9b181bb077d6f3a1fbd-2906/go-1.4/main.log
 for details.
 Warning: Failed to execute portfile from registry for go-1.4 @1.4.3_0
 --->  Unable to uninstall go-1.4 @1.4.3_0, the following ports depend on
 it:
 --->    go @1.7_0
 Error: port uninstall failed: Please uninstall the ports that depend on
 go-1.4 first.
 }}}

 Once we change it from a runtime to a build-time dependency, that should
 become possible. MacPorts should not reinstall go-1.4 unless you are
 building from source; if you instead receive a binary from our build
 server, you don't need build dependencies.

 If you are suggesting that we should only build go using go-1.4 if go is
 not installed, and should build go with go if go is already installed,
 then we don't want to do that, because that would be contrary to the goal
 of ReproducibleBuilds.

-- 
Ticket URL: <https://trac.macports.org/ticket/52041#comment:28>
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