[MacPorts] #49002: encfs installation fails with configure failure

[MacPorts]

#49002: encfs installation fails with configure failure
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 Reporter:  gerd.simon.schmidt@…  |      Owner:  macports-tickets@…
     Type:  defect                |     Status:  new
 Priority:  Normal                |  Milestone:
Component:  ports                 |    Version:  2.3.3
 Keywords:                        |       Port:
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 I tried to upgrade my outdated ports, which include encfs. The port
 upgrade encfs stopped with the following error:

 :info:configure checking whether /Developer/usr/bin/llvm-g++-4.2 supports
 C++11 features by default... no
 :info:configure checking whether /Developer/usr/bin/llvm-g++-4.2 supports
 C++11 features with -std=gnu++11... no
 :info:configure checking whether /Developer/usr/bin/llvm-g++-4.2 supports
 C++11 features with -std=gnu++0x... no
 :info:configure checking whether /Developer/usr/bin/llvm-g++-4.2 supports
 C++11 features with -std=c++11... no
 :info:configure checking whether /Developer/usr/bin/llvm-g++-4.2 supports
 C++11 features with -std=c++0x... no
 :info:configure configure: error: *** A compiler with support for C++11
 language features is required.
 :info:configure Command failed:  cd
 "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_fuse_encfs/encfs/work/encfs-1.8.1"
 && ./configure --prefix=/opt/local --with-boost=/opt/local

 I found a similar error under the ticket #40494 for the aria2 package. The
 complete log file is attached.

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Ticket URL: <https://trac.macports.org/ticket/49002>
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