maintainer-feedback requested: [Bug 206632] devel/rubygem-execjs: Add node version selection

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<bugzilla at FreeBSD.org>'s request for maintainer-feedback to ruby at FreeBSD.org:
Bug 206632: devel/rubygem-execjs: Add node version selection
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=206632



--- Description ---
Created attachment 166129
  --> https://bugs.freebsd.org/bugzilla/attachment.cgi?id=166129&action=edit
Patch to change which node port rubygem-execjs depends on

devel/rubygem-execjs has a hardcoded dependency on www/node.  Node develops
multiple versions simultaneously and the version in www/node is not compatible
with other popular Node applications like Ghost.  And node does not support
multiple coexisting versions at present.

This patch adds an option to select a node version to have as a runtime
dependency (preserving the existing www/node as the default).

It is taken more or less straight from www/npm, which does actually support a
few more options.  (There are something like six different node versions in the
ports tree.)  The ones in this patch are the ones most likely to be of interest
to execjs users.