qt4-x11: #error "This version of Mac OS X is unsupported"

[hylaride@…]

This is the Qt/X11 Open Source Edition.

Determining system architecture... (Darwin:10.4.0:i386)
    'i386' is supported
System architecture: 'i386'
Precompiled-headers support disabled.
Separate debug info support disabled.
Symbol visibility control enabled.
You are licensed to use this software under the terms of
the GNU General Public License (GPL) versions 2 or 3.

You have already accepted the terms of the  license.

Creating qmake. Please wait...
/usr/bin/g++-4.2 -c -o project.o -pipe -DQMAKE_OPENSOURCE_EDITION -I. -Igenerators -Igenerators/unix -Igenerators/win32 -Igenerators/mac -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_x11_qt4-x11/work/qt-x11-opensource-src-4.4.3/include -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_x11_qt4-x11/work/qt-x11-opensource-src-4.4.3/include/QtCore -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_x11_qt4-x11/work/qt-x11-opensource-src-4.4.3/include -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_x11_qt4-x11/work/qt-x11-opensource-src-4.4.3/include/QtCore -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_x11_qt4-x11/work/qt-x11-opensource-src-4.4.3/src/corelib/global -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_x11_qt4-x11/work/qt-x11-opensource-src-4.4.3/src/script -DQT_NO_PCRE -DQT_NO_TEXTCODEC -DQT_NO_UNICODETABLES -DQT_NO_COMPONENT -DQT_NO_STL -DQT_BUILD_QMAKE -DQT_NO_COMPRESS -I/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_x11_qt4-x11/work/qt-x11-opensource-src-4.4.3/mkspecs/darwin-g++ -DHAVE_QCONFIG_CPP -DQT_NO_THREAD -DQT_NO_QOBJECT -DQT_NO_GEOM_VARIANT -D__USE_WS_X11__ project.cpp
In file included from /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_x11_qt4-x11/work/qt-x11-opensource-src-4.4.3/include/QtCore/qglobal.h:1,
                 from /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_x11_qt4-x11/work/qt-x11-opensource-src-4.4.3/include/QtCore/../../src/corelib/tools/qalgorithms.h:41,
                 from /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_x11_qt4-x11/work/qt-x11-opensource-src-4.4.3/include/QtCore/qalgorithms.h:1,
                 from /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_x11_qt4-x11/work/qt-x11-opensource-src-4.4.3/include/QtCore/../../src/corelib/tools/qstringlist.h:41,
                 from /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_x11_qt4-x11/work/qt-x11-opensource-src-4.4.3/include/QtCore/qstringlist.h:1,
                 from project.h:41,
                 from project.cpp:38:
/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_x11_qt4-x11/work/qt-x11-opensource-src-4.4.3/include/QtCore/../../src/corelib/global/qglobal.h:290:6: error: #error "This version of Mac OS X is unsupported"
make: *** [project.o] Error 1
shell command " cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_x11_qt4-x11/work/qt-x11-opensource-src-4.4.3" && ./configure -v -confirm-license -prefix /opt/local/libexec/qt4-x11 -docdir /opt/local/libexec/qt4-x11/share/doc/qt4-x11 -examplesdir /opt/local/libexec/qt4-x11/share/qt4-x11/examples -demosdir /opt/local/libexec/qt4-x11/share/qt4-x11/demos -system-sqlite -openssl-linked -dbus-linked -I/opt/local/include/mysql5/mysql -I/opt/local/include/postgresql83 -L/opt/local/lib -L/opt/local/lib/mysql5/mysql -L/opt/local/lib/postgresql83 -liconv -lresolv -I/opt/local/include/gstreamer-0.10 -I/opt/local/include/glib-2.0 -I/opt/local/lib/glib-2.0/include -I/opt/local/include/libxml2 " returned error 2
Error: Target org.macports.configure returned: configure failure: shell command failed
DEBUG: Backtrace: configure failure: shell command failed
    while executing
"$procedure $targetname"
Warning: the following items did not execute (for qt4-x11): org.macports.activate org.macports.configure org.macports.build org.macports.destroot org.macports.install
Log for qt4-x11 is at: /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_ports_x11_qt4-x11/main.log
Error: Status 1 encountered during processing.
To report a bug, see <http://guide.macports.org/#project.tickets>

[ryandesign (Ryan Carsten Schmidt)]

Please remember WikiFormatting and to fill in the Port field.

Do you really need qt4-x11? Can you use qt4-mac instead?

Duplicate of #20309.