[MacPorts] #50868: _CGLGetCurrentContext not found when building ruby2.3 extensions

[MacPorts]

#50868: _CGLGetCurrentContext not found when building ruby2.3 extensions
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  Reporter:  david@…  |      Owner:  macports-tickets@…
      Type:  defect   |     Status:  reopened
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.3.4
Resolution:           |   Keywords:
      Port:  ruby     |
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Changes (by mojca@…):

 * cc: mf2k@…, chlangley@…, kimuraw@… (added)
 * status:  closed => reopened
 * resolution:  duplicate =>
 * port:   => ruby


Comment:

 I'm reopening this ticket because what was added to #50806 doesn't seem to
 be related to gnuplot at all and I have no clue where to look; gnuplot
 seems to work for so many others and I also suspect some
 `DYLD_LIBRARY_PATH` being set from some random place.

 According to Clemens:
 > my guess is that this is caused by ruby's build system setting
 `DYLD_LIBRARY_PATH`. I've seen the problem when a ruby thingy I tried to
 compile was calling `pkg-config`, which crashed because of
 `DYLD_LIBRARY_PATH`
 > I worked around it at the time by replacing `${prefix}/bin/pkg-config`
 with `"unset DYLD_LIBRARY_PATH; exec ./pkg-config.bin "$@""`, but for this
 specific instance it's not really clear where that would have to be fixed.

 David, please repeat the relevant parts that you wrote to #50806 because
 I'll close that other ticket.

-- 
Ticket URL: <https://trac.macports.org/ticket/50868#comment:4>
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