[MacPorts] #57007: root6 port results in ambiguous include directories after 6.14

[MacPorts]

#57007: root6 port results in ambiguous include directories after 6.14
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  Reporter:  olupton  |      Owner:  cjones051073
      Type:  defect   |     Status:  assigned
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.5.3
Resolution:           |   Keywords:
      Port:  root6    |
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Comment (by olupton):

 Hi Chris!

 First of all, I agree with your description of what the problem is (the
 forwarding header includes itself and achieves nothing).

 OK, so
 {{{
 port select root none
 }}}
 also avoids the problem (which makes sense). This is a bit unsatisfactory
 though, there are plenty of scripts that assume `root` and `root-config`
 are called just that.

 Removing `/opt/local/libexec/root6/include/root/RConfig.h` nearly works,
 but, amusingly, fails because the dictionary code that ROOT generates for
 custom classes (as produced by ROOT's `ROOT_GENERATE_DICTIONARY` CMake
 macro) actually contains `#include "RConfig.h"` instead of `#include
 "ROOT/RConfig.h".

 Your final suggestion, making
 `/opt/local/libexec/root6/include/root/RConfig.h` a symlink to
 `/opt/local/libexec/root6/include/root/ROOT/RConfig.h`, seems to work
 fine.

 Hopefully ROOT's plans to put more headers under ROOT/
 (https://root.cern.ch/blog/rootrwhy) don't lead to more clashes like this.

-- 
Ticket URL: <https://trac.macports.org/ticket/57007#comment:7>
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