[MacPorts] #60091: i686-w64-mingw32-gcc-nothreads build failure - Segmentation fault

[MacPorts]

#60091: i686-w64-mingw32-gcc-nothreads build failure - Segmentation fault
-----------------------------------------+--------------------------------
  Reporter:  mmaenz                      |      Owner:  mojca
      Type:  defect                      |     Status:  assigned
  Priority:  Normal                      |  Milestone:
 Component:  ports                       |    Version:  2.6.2
Resolution:                              |   Keywords:  catalina, haspatch
      Port:  i686-w64-mingw32-gcc, mpfr  |
-----------------------------------------+--------------------------------
Changes (by ryandesign):

 * cc: larryv (added)
 * keywords:  catalina => catalina, haspatch
 * port:  i686-w64-mingw32-gcc => i686-w64-mingw32-gcc, mpfr


Comment:

 After trying to rebuild various rdependencies of i686-w64-mingw32-gcc-
 nothreads with no change, in the end I think ''only '''mpfr''' needs to be
 rebuilt'' to fix this problem.

 Our package of mpfr @4.0.2_0 for Catalina was built October 29, 2019, at
 which point the latest version of Xcode was 11.1, so that's probably what
 we were using on our build server, though we may have still been using
 11.0.

 If it really is a case of an old Xcode 11 building mpfr incorrectly, then
 we should not only increase the revision of mpfr but also ensure that a
 recent enough Xcode is being used. I don't know what the earliest version
 of Xcode 11 is that builds it correctly, but Gcenx reported success
 [comment:11 above] on February 28, 2020, at which point the latest version
 was Xcode 11.3.1, so we could use that as the minimum:

 {{{
 #!diff
 --- Portfile.orig
 +++ Portfile
 @@ -11,6 +11,7 @@
  name                mpfr
  # The actual version is generated below, after patchfiles is defined.
  set base_version    4.0.2
 +revision            1
  categories          devel math
  platforms           darwin
  license             LGPL-3+
 @@ -57,6 +58,12 @@
  # blacklisted here
  compiler.blacklist  {clang == 211.10.1}

 +# Early versions of Xcode 11 seem to miscompile mpfr such that compiling
 +# i686-w64-mingw32-gcc-nothreads crashes. Xcode 11.3.1 and later seem to
 +# be ok. See https://trac.macports.org/ticket/60091
 +compiler.blacklist-append \
 +                    {clang >= 1100 < 1100.0.33.17}
 +
  test.run            yes
  test.target         check

 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/60091#comment:13>
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