growl 1.1.4 failed to build on snow leopard

[smibrahim@…]

[apache2/modules] > install growl
--->  Computing dependencies for Growl
--->  Building Growl
Error: Target org.macports.build returned: shell command " cd "/opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_aqua_Growl/work/Growl-1.1.4-src" && /usr/bin/make -j2 growl " returned error 2
Command output: xcodebuild -target Growl -configuration Deployment build

=== BUILD NATIVE TARGET GrowlMenu OF PROJECT Growl WITH CONFIGURATION Deployment ===
Check dependencies
Warning: The Copy Bundle Resources build phase contains this target's Info.plist file 'StatusItem/Resources/MenuExtra-Info.plist'.
[WARN]Warning: The Copy Bundle Resources build phase contains this target's Info.plist file 'StatusItem/Resources/MenuExtra-Info.plist'.
error: There is no SDK with the name or path '/Developer/SDKs/MacOSX10.4u.sdk'
[BEROR]error: There is no SDK with the name or path '/Developer/SDKs/MacOSX10.4u.sdk'
** BUILD FAILED **

make: *** [growl] Error 1

Error: Status 1 encountered during processing.
Goodbye

i checked manualy the /developers/sdk/ folder, there is no MacOSX10.4u.sdk