mapnik @3.0.0-rc1_1: fails to build

[petrrr]

This port does not build for me on a OS X 10.8.5 system.

Xcode 5.1.1
Build version 5B1008

Probably this is the relevant part of the main.log, full main.log attached

:info:build Undefined symbols for architecture x86_64:
:info:build   "boost::filesystem::path_traits::dispatch(boost::filesystem::directory_entry const&, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >&)", referenced from:
:info:build       mapnik::datasource_cache::register_datasources(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, bool) in datasource_cache.os
:info:build       mapnik::freetype_engine::register_fonts_impl(std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const&, mapnik::font_library&, std::__1::map<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::pair<int, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::less<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >, std::__1::allocator<std::__1::pair<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > const, std::__1::pair<int, std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > > >&, bool) in font_engine_freetype.os
:info:build ld: symbol(s) not found for architecture x86_64
:info:build clang: error: linker command failed with exit code 1 (use -v to see invocation)
:info:build scons: *** [src/libmapnik.dylib] Error 1
:info:build /usr/bin/clang++ -o plugins/input/raster/raster_info.os -c -std=c++11 -stdlib=libc++ -Os -Wno-c++11-narrowing -Wall -Wsign-compare -ftemplate-depth-300 -Wno-unknown-pragmas -Wno-unsequenced -O3 -fPIC -DSHAPE_MEMORY_MAPPED_FILE -DBIGINT -DBOOST_REGEX_HAS_ICU -DHAVE_JPEG -DMAPNIK_USE_PROJ4 -DHAVE_PNG -DHAVE_WEBP -DHAVE_TIFF -DDARWIN -DMAPNIK_THREADSAFE -DBOOST_SPIRIT_NO_PREDEFINED_TERMINALS=1 -DBOOST_PHOENIX_NO_PREDEFINED_TERMINALS=1 -DBOOST_SPIRIT_USE_PHOENIX_V3=1 -DNDEBUG -Ideps -Ideps/clipper/include -Ideps/agg/include -Iinclude -I/opt/local/include -I/opt/local/include/freetype2 -I/opt/local/include/libxml2 -I/usr/include plugins/input/raster/raster_info.cpp
:info:build scons: building terminated because of errors.
:info:build Command failed:  cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_gis_mapnik/mapnik/work/mapnik-3.0.0-rc1" && /opt/local/bin/python2.7 scons/scons.py -j8 
:info:build Exit code: 2
:error:build org.macports.build for port mapnik returned: command execution failed
:debug:build Error code: CHILDSTATUS 16955 2
:debug:build Backtrace: command execution failed
    while executing
"system -nice 0 $fullcmdstring"
    ("eval" body line 1)
    invoked from within
"eval system $notty $nice \$fullcmdstring"
    invoked from within
"command_exec build"
    (procedure "portbuild::build_main" line 8)
    invoked from within
"portbuild::build_main org.macports.build"
    ("eval" body line 1)
    invoked from within
"eval $procedure $targetname"