[MacPorts] #52414: libarchive port fails problem with -pthread argument to clang

[MacPorts]

#52414: libarchive port fails problem with -pthread argument to clang
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  Reporter:  JustinCB@…  |      Owner:  toby@…
      Type:  defect      |     Status:  new
  Priority:  Normal      |  Milestone:
 Component:  ports       |    Version:  2.3.4
Resolution:              |   Keywords:
      Port:  libarchive  |
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Comment (by JustinCB@…):

 Replying to [comment:14 larryv@…]:
 > Replying to [comment:13 JustinCB@…]:
 > > Configuring libarchive requires CMake(If it's from source). Macports
 > > CMake somehow requires libarchive.
 >
 > It does not require CMake. Upstream provides an
 [https://github.com/libarchive/libarchive/wiki/BuildInstructions#using-
 configure-for-building-from-the-command-line-on-linux-freebsd-solaris-
 cygwin-aix-interix-mac-os-x-and-other-unix-like-systems Autotools-based
 build system], which is what we use.
 >
 > > Macports libarchive has a bug that I filed this ticket for.
 >
 > Debatable. I wouldn’t be surprised if your highly unorthodox
 configuration were causing the issue.
 It isn't highly unorthodox, only slightly unorthodox.  It is a part of the
 official macports source, but not the default.  You can't use libraries
 you compiled yourself in macports, but you can use tools that you either
 compiled yourself or are included with the system(like CMake), and I was
 trying to build something that required CMake.  It can use the CMake I
 compiled.  I don't think this bug is in the libarchive build system, it is
 a bug in libtool that causes it to automatically link against the system
 libraries, even if you told it explicitly that you want it to link to
 different libraries.  It might be so that it will make binaries that work
 on any system.  It needs to do that to make binaries that work on any
 system because Mach-O links to a specific path instead of a path set by
 the environment.

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Ticket URL: <https://trac.macports.org/ticket/52414#comment:15>
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