[MacPorts] #59095: mercurial 5.1: fails to build due to sysroot problem

[MacPorts]

#59095: mercurial 5.1: fails to build due to sysroot problem
---------------------------+-----------------------
 Reporter:  ylluminarious  |      Owner:  (none)
     Type:  defect         |     Status:  new
 Priority:  Normal         |  Milestone:
Component:  ports          |    Version:  2.6.0
 Keywords:                 |       Port:  mercurial
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 I was upgrading my ports yesterday and found that Mercurial failed to
 build while upgrading. I thought perhaps this was a simple fluke, so I
 uninstalled it and tried reinstalling it from scratch. Unfortunately, this
 didn't solve the issue. Then I tried installing the previous version of
 the port, [https://trac.macports.org/wiki/howto/InstallingOlderPort as
 specified here,] but I got a similar error. It failed with something
 saying {{{ld: library not found for -lSystem}}} The current version's
 error also complains about sysroot problems, which I really don't
 understand why this is an issue for this port.

 There is apparently no maintainer for this port, so I'm not CC'ing anyone.

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Ticket URL: <https://trac.macports.org/ticket/59095>
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