[MacPorts] #26787: graphviz, graphviz-devel: +r variant: Rconfig.h: No such file or directory (was: Graphviz @2.26.3_2 +r fails to build)

[MacPorts]

#26787: graphviz, graphviz-devel: +r variant: Rconfig.h: No such file or directory
-------------------------------------+--------------------------------------
 Reporter:  nigel.stanger@…          |       Owner:  ryandesign@…            
     Type:  defect                   |      Status:  assigned                
 Priority:  Normal                   |   Milestone:                          
Component:  ports                    |     Version:  1.9.1                   
 Keywords:                           |        Port:  graphviz, graphviz-devel
-------------------------------------+--------------------------------------
Changes (by ryandesign@…):

  * status:  new => assigned
  * port:  graphviz => graphviz, graphviz-devel


Comment:

 Yes, R seems to have moved where it puts its headers; now everything that
 uses R is broken. Hooray for R. R's libR.pc pkgconfig file makes no
 mention of this extra directory. Sounds like an R bug.

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Ticket URL: <https://trac.macports.org/ticket/26787#comment:2>
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