[MacPorts] #50128: tesseract @3.04.00_2 build failure: 'unordered_map' file not found

[MacPorts]

#50128: tesseract @3.04.00_2 build failure: 'unordered_map' file not found
---------------------------+--------------------------------
  Reporter:  alexmptrac@…  |      Owner:  macports-tickets@…
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.3.4
Resolution:                |   Keywords:
      Port:  tesseract     |
---------------------------+--------------------------------
Changes (by ryandesign@…):

 * cc: alexmptrac@… (removed)


Old description:

> MacOS version: 10.7.5
> XCode version: 4.6.3
>
> Tesseract @3.04.00_2 is failing to install on two machines here, both
> running Lion. This problem came up as part of a routine 'port upgrade
> outdated' (previous versions of tesseract worked OK on these systems).
>
> Googling for the compiler error found this page, which sounds relevant,
> though it isn't clear to me what to do to fix the problem:
> http://stackoverflow.com/questions/26233011/what-could-cause-clang-to-
> not-find-the-unordered-map-header

New description:

 MacOS version: 10.7.5\\
 XCode version: 4.6.3

 Tesseract @3.04.00_2 is failing to install on two machines here, both
 running Lion. This problem came up as part of a routine 'port upgrade
 outdated' (previous versions of tesseract worked OK on these systems).

 Googling for the compiler error found this page, which sounds relevant,
 though it isn't clear to me what to do to fix the problem:
 http://stackoverflow.com/questions/26233011/what-could-cause-clang-to-not-
 find-the-unordered-map-header

--

Comment:

 If that page is correct, then this software now requires C++11 and the
 port should indicate this by including the cxx11 1.0 portgroup.
 Unfortunately this means the port cannot be compiled in a default MacPorts
 setup on Mac OS X 10.8 or earlier; see LibcxxOnOlderSystems for the
 workaround.

-- 
Ticket URL: <https://trac.macports.org/ticket/50128#comment:3>
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