[MacPorts] #58804: (gnutls at 10.6.8) failed to build gnutls - command execution failed

[MacPorts]

#58804: (gnutls at 10.6.8) failed to build gnutls - command execution failed
----------------------+-------------------------------
  Reporter:  mrkapqa  |      Owner:  Schamschula
      Type:  defect   |     Status:  assigned
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.5.4
Resolution:           |   Keywords:  gnutls youtube-dl
      Port:  gnutls   |
----------------------+-------------------------------

Comment (by kencu):

 `gnutls` is using a new symbol, `___get_cpuid_count` that exists only in
 `gcc` and very new versions of `clang`. `clang-7.0` and newer appear to
 have it.

 On this 10.7.5 machine I have with me, the current portfile forces
 `clang-8.0`, and that works.

 The defaulting on `10.6.8` might be different. Please make sure your
 portfiles are up to date, and then clean and try your install again:
 {{{
 sudo port selfupdate
 sudo port clean gnutls
 sudo port -v install gnutls
 }}}
 if it fails, then the blacklisting and fallbacks are wrong. In that case,
 force clang-8.0 yourself like this:
 {{{
 sudo port clean gnutls
 sudo port -v -N install clang-8.0
 sudo port -v install gnutls configure.compiler=macports-clang-8.0
 }}}
 and that should work. Report back success or failure.

 Aside:

 It might be simpler to just add a replacement for `___get_cpuid_count`, I
 think. See <https://reviews.llvm.org/D61036> and <https://github.com/gcc-
 mirror/gcc/blob/master/gcc/config/i386/cpuid.h>.

-- 
Ticket URL: <https://trac.macports.org/ticket/58804#comment:7>
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