graphviz @2.24.0 Unable to build

[nicolas.forquet@…]

While trying to install octave port, failled to build graphviz: (I've Xcode 3.1.3 installed)

Error: Target org.macports.build returned: shell command " cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_graphics_graphviz/work/graphviz-2.24.0" && /usr/bin/make -j1 all " returned error 2 Command output: make[3]: Nothing to be done for `all'. Making all in devil make[3]: Nothing to be done for `all'. Making all in gd make[3]: Nothing to be done for `all'. Making all in gdk_pixbuf make[3]: Nothing to be done for `all'. Making all in gdiplus make[3]: Nothing to be done for `all'. Making all in glitz make[3]: Nothing to be done for `all'. Making all in gs make[3]: Nothing to be done for `all'. Making all in gtk make[3]: Nothing to be done for `all'. Making all in lasi make[3]: Nothing to be done for `all'. Making all in ming make[3]: Nothing to be done for `all'. Making all in pango make[3]: Nothing to be done for `all'. Making all in quartz /bin/sh ../../libtool --tag=CC --mode=compile /usr/bin/gcc-4.0 -DHAVE_CONFIG_H -I. -I../.. -I../.. -I../../lib/common -I../../lib/pathplan -I../../lib/gvc -I../../lib/graph -I../../lib/cdt -I/opt/local/include -I/opt/local/include -O2 -arch i386 -fno-common -Wall -MT gvdevice_quartz.lo -MD -MP -MF .deps/gvdevice_quartz.Tpo -c -o gvdevice_quartz.lo gvdevice_quartz.c

/usr/bin/gcc-4.0 -DHAVE_CONFIG_H -I. -I../.. -I../.. -I../../lib/common -I../../lib/pathplan -I../../lib/gvc -I../../lib/graph -I../../lib/cdt -I/opt/local/include -I/opt/local/include -O2 -arch i386 -fno-common -Wall -MT gvdevice_quartz.lo -MD -MP -MF .deps/gvdevice_quartz.Tpo -c gvdevice_quartz.c -fno-common -DPIC -o .libs/gvdevice_quartz.o

In file included from gvdevice_quartz.c:23: gvplugin_quartz.h:20:26: error: Availability.h: No such file or directory make[3]: * [gvdevice_quartz.lo] Error 1 make[2]: * [all-recursive] Error 1 make[1]: * [all-recursive] Error 1 make: * [all] Error 2

Error: Status 1 encountered during processing.