[MacPorts] #46857: update rNMR to 1.1.8 using new xvfb-run port and xvfb subport as well as return to ${prefix}/lib/R/library

[MacPorts]

#46857: update rNMR to 1.1.8 using new xvfb-run port and xvfb subport as well as
return to ${prefix}/lib/R/library
-----------------------------------+--------------------------------
 Reporter:  howarth.at.macports@…  |      Owner:  macports-tickets@…
     Type:  defect                 |     Status:  new
 Priority:  Normal                 |  Milestone:
Component:  ports                  |    Version:  2.3.3
 Keywords:                         |       Port:  rNMR
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 The attached Portfile diff relies on the following tickets...

 1) Ticket #46849 which restores the ability of the R package to find R
 packages placed in ${prefix}/lib/R/library

 2) Ticket #46842 which adds the new xvfb-run package which provides the
 Debian xvfb-run utility.

 3) Ticket #46856 which adds the new xvfb subport to the xorg-server
 package which the new xvfb-run package depends_run on.

 The new rNMR Portfile.diff implements the following changes...

 a) Moves the location of the installed rNMR R package back to its previous
 location in  ${prefix}/lib/R/library.

 b) Adds the missing "require_active_variants tk x11" as the rNMR package
 requires a tk to use X11.

 c) Updates the rNMR package to the 1.1.8 release.

 d) passes the "${prefix}/bin/R CMD INSTALL -l pkg --byte-compile --build
 ${distpath}/[lindex ${distfiles} 0]" command through "`which xvfb-run`" to
 avoid build failures due to the use of X11 in newer version of rNMR.r.

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Ticket URL: <https://trac.macports.org/ticket/46857>
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