[MacPorts] #60724: gnucash fails to build ("uses the cxx11 PortGroup which is deprecated")

[MacPorts]

#60724: gnucash fails to build ("uses the cxx11 PortGroup which is deprecated")
----------------------+--------------------
  Reporter:  posita   |      Owner:  (none)
      Type:  defect   |     Status:  new
  Priority:  Normal   |  Milestone:
 Component:  ports    |    Version:  2.6.2
Resolution:           |   Keywords:
      Port:  gnucash  |
----------------------+--------------------

Comment (by kencu):

 That warning is of use for Portfile developers, and is obviously just
 confusing for users. Apologies for that.

 The issue seems to be:
 {{{
 6835    :info:configure -- Looking for pthread.h - found
 6836    :info:configure -- Performing Test CMAKE_HAVE_LIBC_PTHREAD
 6837    :info:configure -- Performing Test CMAKE_HAVE_LIBC_PTHREAD -
 Failed
 6838    :info:configure -- Check if compiler accepts -pthread
 6839    :info:configure -- Check if compiler accepts -pthread - no
 6840    :info:configure -- Looking for pthread_create in pthreads
 6841    :info:configure -- Looking for pthread_create in pthreads - not
 found
 6842    :info:configure -- Looking for pthread_create in pthread
 6843    :info:configure -- Looking for pthread_create in pthread - not
 found
 6844    :info:configure CMake Error at
 /opt/local/macports-20200625/share/cmake-3.17/Modules/FindPackageHandleStandardArgs.cmake:164
 (message):
 6845    :info:configure   Could NOT find Threads (missing: Threads_FOUND)
 6846    :info:configure Call Stack (most recent call first):
 6847    :info:configure
 /opt/local/macports-20200625/share/cmake-3.17/Modules/FindPackageHandleStandardArgs.cmake:445
 (_FPHSA_FAILURE_MESSAGE)
 6848    :info:configure
 /opt/local/macports-20200625/share/cmake-3.17/Modules/FindThreads.cmake:234
 (FIND_PACKAGE_HANDLE_STANDARD_ARGS)
 6849    :info:configure   common/cmake_modules/GncAddTest.cmake:126
 (find_package)
 6850    :info:configure   CMakeLists.txt:636 (gnc_gtest_configure)
 6851    :info:configure -- Configuring incomplete, errors occurred!
 6852    :info:configure See also
 "/opt/local/macports-20200625/var/macports/build/_opt_local_macports-
 20200625_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_gnome_gnucash/gnucash/work/build/CMakeFiles/CMakeOutput.log".
 6853    :info:configure See also
 "/opt/local/macports-20200625/var/macports/build/_opt_local_macports-
 20200625_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_gnome_gnucash/gnucash/work/build/CMakeFiles/CMakeError.log".
 6854    :info:configure Command failed:  cd
 "/opt/local/macports-20200625/var/macports/build/_opt_local_macports-
 20200625_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_gnome_gnucash/gnucash/work/build"
 && /opt/local/macports-20200625/bin/cmake -G "CodeBlocks - Unix Makefiles"
 -DCMAKE_BUILD_TYPE=MacPorts
 -DCMAKE_INSTALL_PREFIX="/opt/local/macports-20200625"
 -DCMAKE_INSTALL_NAME_DIR="/opt/local/macports-20200625/lib"
 -DCMAKE_SYSTEM_PREFIX_PATH="/opt/local/macports-20200625;/usr"
 -DCMAKE_C_COMPILER="$CC" -DCMAKE_CXX_COMPILER="$CXX"
 -DCMAKE_POLICY_DEFAULT_CMP0025=NEW -DCMAKE_POLICY_DEFAULT_CMP0060=NEW
 -DCMAKE_VERBOSE_MAKEFILE=ON -DCMAKE_COLOR_MAKEFILE=ON
 -DCMAKE_FIND_FRAMEWORK=LAST -DCMAKE_EXPORT_COMPILE_COMMANDS=ON
 -DCMAKE_MAKE_PROGRAM=/usr/bin/make
 -DCMAKE_MODULE_PATH="/opt/local/macports-20200625/share/cmake/Modules"
 -DCMAKE_PREFIX_PATH="/opt/local/macports-20200625/share/cmake/Modules"
 -DCMAKE_BUILD_WITH_INSTALL_RPATH:BOOL=ON
 -DCMAKE_INSTALL_RPATH="/opt/local/macports-20200625/lib" -Wno-dev
 -DENABLE_BINRELOC=OFF
 -DCMAKE_INSTALL_SYSCONFDIR=/opt/local/macports-20200625/etc
 -DWITH_PYTHON=ON
 -DPYTHON_EXECUTABLE:FILEPATH=/opt/local/macports-20200625/bin/python3.6
 -DPYTHON_INCLUDE_DIR:PATH=/Library/Frameworks/MacPorts-20200625/Python.framework/Versions/3.6/include/python3.6m
 -DPYTHON_LIBRARY:FILEPATH=/Library/Frameworks/MacPorts-20200625/Python.framework/Versions/3.6/lib/libpython3.6.dylib
 -DCMAKE_OSX_ARCHITECTURES="x86_64" -DCMAKE_OSX_DEPLOYMENT_TARGET="10.15"
 -DCMAKE_OSX_SYSROOT="/Library/Developer/CommandLineTools/SDKs/MacOSX10.15.sdk"
 /opt/local/macports-20200625/var/macports/build/_opt_local_macports-
 20200625_var_macports_sources_rsync.macports.org_macports_release_tarballs_ports_gnome_gnucash/gnucash/work/gnucash-3.9
 6855    :info:configure Exit code: 1
 }}}

 and what really is going wrong is probably indicated in those two other
 log files listed uner {{{See also}}}.

-- 
Ticket URL: <https://trac.macports.org/ticket/60724#comment:1>
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