[MacPorts] #59128: qt5-qttranslations 5.12.5 fails on macOS 10.15 with clang: error: invalid library name in argument '-stdlib='

[MacPorts]

#59128: qt5-qttranslations 5.12.5 fails on macOS 10.15 with clang: error: invalid
library name in argument '-stdlib='
---------------------------------+---------------------------------
  Reporter:  rex4539             |      Owner:  MarcusCalhoun-Lopez
      Type:  defect              |     Status:  assigned
  Priority:  Normal              |  Milestone:
 Component:  ports               |    Version:
Resolution:                      |   Keywords:  catalina
      Port:  qt5-qttranslations  |
---------------------------------+---------------------------------

Comment (by mndavidoff):

 Building qt5-qttranslations 5.12.4 fails with the same error on macOS
 10.14 with Xcode 11.0.

 {{{
 --->  Configuring qt5-qttranslations
 Executing:  cd
 "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_aqua_qt5/qt5-qttranslations/work
 /qttranslations-everywhere-src-5.12.4" && /opt/local/libexec/qt5/bin/qmake
 PREFIX=/opt/local -spec macx-clang
 Info: creating stash file
 /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_aqua_qt5/qt5-qttranslations/work
 /qttranslations-everywhere-src-5.12.4/.qmake.stash
 Project ERROR: Cannot run compiler
 '/Library/Developer/CommandLineTools/usr/bin/clang++'. Output:
 ===================
 Apple LLVM version 10.0.1 (clang-1001.0.46.4)
 Target: x86_64-apple-darwin18.7.0
 Thread model: posix
 InstalledDir: /Library/Developer/CommandLineTools/usr/bin
 clang: error: invalid library name in argument '-stdlib='
 clang: error: invalid library name in argument '-stdlib='
 ===================
 }}}

-- 
Ticket URL: <https://trac.macports.org/ticket/59128#comment:1>
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