qt4 fails to build

ApplicationServices -arch x86_64 -Wl,-syslibroot,/Developer/SDKs/MacOSX10.6.sdk
:info:configure /Developer/SDKs/MacOSX10.6.sdk/usr/include/rpcsvc/yp_prot.h:94:22: error: redeclaration of C++ built-in type 'bool'
:info:configure 1 error generated.
:info:configure gmake: *** [nis.o] Error 1
:info:configure clock-gettime.cpp:51:4: error: "Feature _POSIX_TIMERS not available"
:info:configure #  error "Feature _POSIX_TIMERS not available"
:info:configure clock-gettime.cpp:53:5: error: use of undeclared identifier 'force_compiler_error'
:info:configure     force_compiler_error = true;
:info:configure 2 errors generated.
:info:configure gmake: *** [clock-gettime.o] Error 1
:info:configure mremap.cpp:47:14: error: no member named 'mremap' in the global namespace
:info:configure mremap.cpp:47:68: error: use of undeclared identifier 'MREMAP_MAYMOVE'
:info:configure 2 errors generated.
:info:configure gmake: *** [mremap.o] Error 1
:info:configure inotifytest.cpp:42:10: fatal error: 'sys/inotify.h' file not found
:info:configure 1 error generated.
:info:configure gmake: *** [inotifytest.o] Error 1
:info:configure openvg.cpp:48:10: fatal error: 'VG/openvg.h' file not found
:info:configure 1 error generated.
:info:configure gmake: *** [openvg.o] Error 1
:info:configure openvg.cpp:48:10: fatal error: 'VG/openvg.h' file not found
:info:configure 1 error generated.
:info:configure gmake: *** [openvg.o] Error 1
:info:configure openvg.cpp:46:10: fatal error: 'vg/openvg.h' file not found
:info:configure 1 error generated.
:info:configure gmake: *** [openvg.o] Error 1
:info:configure openvg.cpp:46:10: fatal error: 'vg/openvg.h' file not found
:info:configure 1 error generated.
:info:configure gmake: *** [openvg.o] Error 1
:info:configure alsatest.cpp:42:10: fatal error: 'alsa/asoundlib.h' file not found
:info:configure 1 error generated.
:info:configure gmake: *** [alsatest.o] Error 1
:info:build /opt/local/bin/clang++-mp-3.7 -c -pipe -Os -stdlib=libc++ -Xarch_x86_64 -mmacosx-version-min=10.6 -O2 -fPIC -arch x86_64 -Xarch_x86_64 -mmacosx-version-min=10.6 -Wall -W -isysroot /Developer/SDKs/MacOSX10.6.sdk -DQT_BOOTSTRAPPED -DQT_LITE_UNICODE -DQT_NO_CAST_FROM_ASCII -DQT_NO_CAST_TO_ASCII -DQT_NO_CODECS -DQT_NO_DATASTREAM -DQT_NO_GEOM_VARIANT -DQT_NO_LIBRARY -DQT_NO_QOBJECT -DQT_NO_STL -DQT_NO_SYSTEMLOCALE -DQT_NO_TEXTSTREAM -DQT_NO_THREAD -DQT_NO_UNICODETABLES -DQT_NO_USING_NAMESPACE -DQT_NO_DEPRECATED -D_LARGEFILE64_SOURCE -D_LARGEFILE_SOURCE -I../../../mkspecs/macx-g++ -I. -I../../../include -I../../../include/QtCore -I../../../include/QtXml -o .obj/release-static/qsystemerror.o ../../corelib/kernel/qsystemerror.cpp
:info:build ar cq libbootstrap.a .obj/release-shared/qlocale_mac.o .obj/release-static/qisciicodec.o .obj/release-static/qlatincodec.o .obj/release-static/qsimplecodec.o .obj/release-static/qtextcodec.o .obj/release-static/qtsciicodec.o .obj/release-static/qutfcodec.o .obj/release-static/qglobal.o .obj/release-static/qmalloc.o .obj/release-static/qnumeric.o .obj/release-static/qabstractfileengine.o .obj/release-static/qbuffer.o .obj/release-static/qdatastream.o .obj/release-static/qdir.o .obj/release-static/qdiriterator.o .obj/release-static/qfile.o .obj/release-static/qfileinfo.o .obj/release-static/qfilesystementry.o .obj/release-static/qfilesystemengine.o .obj/release-static/qfsfileengine.o .obj/release-static/qfsfileengine_iterator.o .obj/release-static/qiodevice.o .obj/release-static/qtemporaryfile.o .obj/release-static/qtextstream.o .obj/release-static/qmetatype.o .obj/release-static/qvariant.o .obj/release-static/qsystemerror.o .obj/release-static/qbitarray.o .obj/release-static/qbytearray.o .obj/release-static/qbytearraymatcher.o .obj/release-static/qdatetime.o .obj/release-static/qhash.o .obj/release-static/qlist.o .obj/release-static/qlocale.o .obj/release-static/qlocale_tools.o .obj/release-static/qmap.o .obj/release-static/qregexp.o .obj/release-static/qstring.o .obj/release-static/qstringlist.o .obj/release-static/qvector.o .obj/release-static/qvsnprintf.o .obj/release-static/qxmlutils.o .obj/release-static/qxmlstream.o .obj/release-static/qdom.o .obj/release-static/qxml.o .obj/release-static/qfilesystemengine_unix.o .obj/release-static/qfilesystemiterator_unix.o .obj/release-static/qfsfileengine_unix.o .obj/release-static/qcore_mac.o
:info:build clang: error: linker command failed with exit code 1 (use -v to see invocation)
:info:build make[1]: *** [../../../bin/moc] Error 1
:info:build make: *** [sub-moc-all-ordered] Error 2
:error:build org.macports.build for port qt4-mac returned: command execution failed
:debug:build Error code: CHILDSTATUS 87765 2
:error:build Failed to install qt4-mac
:debug:build Registry error: qt4-mac not registered as installed & active.