Install qt4-mac on OSX El Capitan returned: unsupported platform

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Error: qt4-mac does not currently build on OSX later than 10.10 'Yosemite'.
Error: org.macports.fetch for port qt4-mac returned: unsupported platform
Please see the log file for port qt4-mac for details:
    /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_aqua_qt4-mac/qt4-mac/main.log
To report a bug, follow the instructions in the guide:
    http://guide.macports.org/#project.tickets
Error: Processing of port qt4-mac failed
less 
/opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_aqua_qt4-mac/qt4-mac/main.log

:debug:main libiconv 1.14_0  is the latest installed
:debug:main libiconv 1.14_0  is active
:debug:main Merging existing variants '' into variants
:debug:main new fully merged portvariants: 
:debug:main Changing to port directory: /opt/local/var/macports/sources/rsync.macports.org/release/tarballs/ports/textproc/libiconv
:debug:main OS darwin/15.0.0 (Mac OS X 10.11) arch i386
:debug:main Reading variant descriptions from /opt/local/var/macports/sources/rsync.macports.org/release/tarballs/ports/_resources/port1.0/variant_descriptions.conf
:debug:main Sourcing PortGroup muniversal 1.0 from /opt/local/var/macports/sources/rsync.macports.org/release/tarballs/ports/_resources/port1.0/group/muniversal-1.0.tcl
:debug:main universal variant already exists, so not adding the default one
:debug:main Running callback portconfigure::add_automatic_compiler_dependencies
:debug:main Finished running callback portconfigure::add_automatic_compiler_dependencies
:debug:main Running callback portbuild::add_automatic_buildsystem_dependencies
:debug:main Finished running callback portbuild::add_automatic_buildsystem_dependencies
:debug:main No need to upgrade! libiconv 1.14_0 >= libiconv 1.14_0
:msg:main --->  Computing dependencies for qt4-mac:info:main .:debug:main Checking for conflicts against qt4-mac
:debug:main Searching for dependency: qt3
:debug:main Didn't find receipt, going to depspec regex for: qt3
:debug:main Searching for dependency: qt3-mac
:debug:main Didn't find receipt, going to depspec regex for: qt3-mac
:debug:main Searching for dependency: qt5-mac
:debug:main Didn't find receipt, going to depspec regex for: qt5-mac
:debug:main Searching for dependency: pkgconfig
:debug:main Found Dependency: receipt exists for pkgconfig
:msg:main 
:debug:main Executing org.macports.main (qt4-mac)
:debug:main changing euid/egid - current euid: 0 - current egid: 0
:debug:main egid changed to: 501
:debug:main euid changed to: 503
:debug:main Skipping completed org.macports.archivefetch (qt4-mac)
:debug:main Privilege de-escalation not attempted as not running as root.
:debug:fetch fetch phase started at Sun Jun 21 07:57:33 CDT 2015
:notice:fetch --->  Fetching distfiles for qt4-mac
:warn:fetch Your DNS servers incorrectly claim to know the address of nonexistent hosts. This may cause checksum mismatches for some ports. See this page for more information: <https://trac.macports.org/wiki/MisbehavingServers>
:debug:fetch Executing proc-pre-org.macports.fetch-fetch-0
:error:fetch qt4-mac does not currently build on OSX later than 10.10 'Yosemite'.
:error:fetch org.macports.fetch for port qt4-mac returned: unsupported platform
:debug:fetch Error code: NONE
:debug:fetch Backtrace: unsupported platform
    while executing
"proc-pre-org.macports.fetch-fetch-0 org.macports.fetch"
    ("eval" body line 1)
    invoked from within
"eval $pre $targetname"
:info:fetch Warning: targets not executed for qt4-mac: org.macports.activate org.macports.fetch org.macports.checksum org.macports.extract org.macports.patch org.macports.configure org.macports.build org.macports.destroot org.macports.install
:notice:fetch Please see the log file for port qt4-mac for details:
    /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_aqua_qt4-mac/qt4-mac/main.log

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main.log has the error file