Please describe the problem:
When pango is compiled with Quartz support (that is, when cairo has been install with Quartz support), it uses ATSUI functions, which do not exist on 64-bit Mac OS X. This is already a problem for those users wanting to build a 64-bit/32-bit universal binary on Leopard, and will be a problem for all users wanting Quartz support on Snow Leopard which compiles 64-bit by default. Apple says Snow Leopard will be out in September 2009.


Steps to reproduce:
1. configure cairo with --enable-quartz --enable-quartz-font --enable-quartz-image, make, make install
2. configure and make pango

Or using MacPorts:

1. sudo port install pango +quartz

Actual results:
libtool: link: /usr/bin/gcc-4.2 -dynamiclib  -o .libs/libpangocairo-1.0.0.dylib  .libs/libpangocairo_1_0_la-pangocairo-context.o .libs/libpangocairo_1_0_la-pangocairo-font.o .libs/libpangocairo_1_0_la-pangocairo-fontmap.o .libs/libpangocairo_1_0_la-pangocairo-render.o .libs/libpangocairo_1_0_la-pangocairo-fcfont.o .libs/libpangocairo_1_0_la-pangocairo-fcfontmap.o .libs/libpangocairo_1_0_la-module-defs-atsui.o .libs/libpangocairo_1_0_la-pangoatsui.o .libs/libpangocairo_1_0_la-pangoatsui-fontmap.o .libs/libpangocairo_1_0_la-pangocairo-atsuifont.o .libs/libpangocairo_1_0_la-pangocairo-atsuifontmap.o   -framework CoreFoundation -framework Carbon -framework Cocoa -L/opt/local/lib ./.libs/libpango-1.0.dylib /opt/local/lib/libcairo.dylib /opt/local/lib/libpixman-1.dylib /opt/local/lib/libpng12.dylib /opt/local/lib/libXrender.dylib /opt/local/lib/libX11.dylib /opt/local/lib/libXau.dylib /opt/local/lib/libXdmcp.dylib ./.libs/libpangoft2-1.0.dylib /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_x11_pango/work/pango-1.24.5/pango/.libs/libpango-1.0.dylib /opt/local/lib/libgobject-2.0.dylib /opt/local/lib/libgmodule-2.0.dylib /opt/local/lib/libglib-2.0.dylib /opt/local/lib/libintl.dylib -lc -lm /opt/local/lib/libfontconfig.dylib /opt/local/lib/libexpat.dylib /opt/local/lib/libfreetype.dylib -lz /opt/local/lib/libiconv.dylib  -arch x86_64 -arch x86_64 -Wl,-dylib_file -Wl,/opt/local/lib/libpango-1.0.0.dylib:/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_x11_pango/work/pango-1.24.5/pango/.libs/libpango-1.0.dylib   -framework CoreFoundation -framework Carbon -framework Cocoa -install_name  /opt/local/lib/libpangocairo-1.0.0.dylib -compatibility_version 2401 -current_version 2401.5 -Wl,-single_module -Wl,-exported_symbols_list,.libs/libpangocairo-1.0-symbols.expsym
Undefined symbols:
  "_cairo_quartz_font_face_create_for_atsu_font_id", referenced from:
      _pango_cairo_atsui_font_create_font_face in libpangocairo_1_0_la-pangocairo-atsuifont.o
ld: symbol(s) not found
collect2: ld returned 1 exit status
make[4]: *** [libpangocairo-1.0.la] Error 1
make[3]: *** [all-recursive] Error 1
make[2]: *** [all] Error 2
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2



Expected results:
successful compile

Does this happen every time?
yes

Other information:
Behdad advised me to file a bug for this here:

http://mail.gnome.org/archives/gtk-i18n-list/2009-January/msg00008.html

The MacPorts project has some patches for this here:

http://trac.macports.org/ticket/17049

I have not tried them myself.