[MacPorts] #35845: R-framework package 'agl' has undeclared dependencies

[MacPorts]

#35845: R-framework package 'agl' has undeclared dependencies
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  Reporter:  me@…                |      Owner:  kjell.konis@…
      Type:  defect              |     Status:  new
  Priority:  Normal              |  Milestone:
 Component:  ports               |    Version:  2.1.2
Resolution:                      |   Keywords:
      Port:  R-framework, R-app  |
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Comment (by kjell.konis@…):

 It looks like the problem arose because the OBJC** environment stuff was
 not correctly copied from the configure environment to
 $RHOME/etc/Makeconf. The attached patch fixes this problem by directly
 setting the incorrect variables in post-destroot.

 If you want to install packages that have a configure script using R.app
 you need to use Sys.setenv (within R) to add your MacPorts installation to
 your path, otherwise configure can't find MacPorts provided components. If
 you run R in Terminal then R will inherit your environment, including the
 path. Packages installed this way should work fine (famous last words?)
 from R.app as well.

 Also, I removed tcltk from default variants because loading the newest
 version of tcltk causes R to crash. See bug #37107.

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Ticket URL: <https://trac.macports.org/ticket/35845#comment:5>
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