Building libvpx Error

[mieru mieru]

Hi everybody, i'm new to this list but i'have been using macport since
a couple of years without any problems.
On a fresh installation of macport on a new 10.6.4 i got this error
while installing gimp:
 -->Building libvpx
Error: Target org.macports.build returned: shell command failed
Log for libvpx is at:
/opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_ports_multimedia_libvpx/main.log
Error: The following dependencies failed to build: gimp-app gimp2 gegl
ffmpeg libvpx schroedinger orc speex texi2html x264 graphviz gd2 xpm
xorg-libXt xorg-libsm xorg-libice ghostscript libpaper urw-fonts
xorg-libXaw groff xorg-libXmu libopenraw boost boost-jam libspiro lua
openexr ilmbase gsed lcms libexif libgnomeui gnome-icon-theme
hicolor-icon-theme icon-naming-utils p5-xml-simple
p5-xml-namespacesupport p5-xml-sax p5-xml-sax-expat gnome-keyring
libgcrypt libgpg-error libtasn1 libbonoboui libglade2 libgnome esound
audiofile libgnomecanvas libmng libwmf poppler openjpeg poppler-data
py25-gtk py25-cairo py25-numpy atlas gcc44 gmp mpfr gzip texinfo
lzmautils fftw-3 py25-nose py25-distribute python25 py25-gobject
gimp-jp2 gimp-lqr-plugin liblqr gtk-nodoka-engine coreutils gutenprint
icns-gimp ufraw cfitsio dcraw exiv2 gtkimageview xsane sane-backends
libusb-compat libusb
Error: Status 1 encountered during processing.


the log for libvpx say:
:msg:main --->  Building libvpx
:debug:build build phase started at Sun Aug  1 13:29:54 CEST 2010
:debug:build Executing org.macports.build (libvpx)
:debug:build Environment: CPATH='/opt/local/include'
CC_PRINT_OPTIONS_FILE='/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_multimedia_libvpx/work/.CC_PRINT_OPTIONS'
LIBRARY_PATH='/opt/local/lib' CC_PRINT_OPTIONS='YES'
MACOSX_DEPLOYMENT_TARGET='10.6'
:debug:build Assembled command: 'cd
"/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_multimedia_libvpx/work/libvpx-0.9.1"
&& /usr/bin/make -j2'
:info:build make: *** [.DEFAULT] Error 2
:info:build shell command " cd
"/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_multimedia_libvpx/work/libvpx-0.9.1"
&& /usr/bin/make -j2 " returned error 2
:error:build Target org.macports.build returned: shell command failed
:debug:build Backtrace: shell command failed
    while executing
"command_exec build"
    (procedure "portbuild::build_main" line 8)
    invoked from within
"$procedure $targetname"
:info:build Warning: the following items did not execute (for libvpx):
org.macports.activate org.macports.build org.macports.destroot
org.macports.install
:notice:build Log for libvpx is at:
/opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_ports_multimedia_libvpx/main.log

Can anyone halp?
thenks
Pierfausto