[MacPorts] #63635: libgcrypt +universal Failed to destroot: libgcrypt.pc differs in .../destroot-arm64/... and .../destroot-ppc-intel/... and cannot be merged

[MacPorts]

#63635: libgcrypt +universal Failed to destroot: libgcrypt.pc differs in
.../destroot-arm64/... and .../destroot-ppc-intel/... and cannot be merged
---------------------------+--------------------
  Reporter:  ShadSterling  |      Owner:  (none)
      Type:  defect        |     Status:  new
  Priority:  Normal        |  Milestone:
 Component:  ports         |    Version:  2.7.1
Resolution:                |   Keywords:
      Port:  libgcrypt     |
---------------------------+--------------------

Comment (by ryandesign):

 Replying to [ticket:63635 ShadSterling]:
 > If I understand right, the universal build is building separate binaries
 for arm64 and "ppc-intel" (not x86_64?), then failing to merge them into a
 universal binary

 Yes.

 > because `lipo` doesn't understand the arm64 architecture

 No. It is failing because the pkg-config files differ. The muniversal
 portgroup which is used for such build-then-merge builds understands how
 to merge a variety of files, but the pkg-config file format does not
 accommodate any form of merging, therefore the muniversal portgroup has no
 choice but to require that all the generated pkg-config files are
 identical, and in this case they are not, therefore an error message must
 be emitted.

 This could indicate a bug in the way that the upstream build system
 creates the pkg-config files. For example, in this case, the difference
 appears to be in the `host` lines, but I'm not aware of any reason why a
 pkg-config file should contain a `host` line, so the solution may be to
 remove that line from the files.

 On my system I see other pkg-config files from other ports that also have
 a `host` line, so all of those ports seem to have the same bug.

-- 
Ticket URL: <https://trac.macports.org/ticket/63635#comment:7>
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