cannot install ogre

[newchief@…]

It fails with following output in CMakeError.log:

Determining if the C compiler works failed with the following output: Change Dir: /opt/local/var/macports/build/_opt_local_var_macports_sources_rsync.macports.org_release_ports_graphics_ogre/ogre/work/ogre_src_v1-7-3/CMakeFiles/CMakeTmp

Run Build Command:/opt/local/bin/cmakexbuild -project CMAKE_TRY_COMPILE.xcodeproj build -target cmTryCompileExec -configuration Debug

BUILD NATIVE TARGET cmTryCompileExec OF PROJECT CMAKE_TRY_COMPILE WITH CONFIGURATION Debug

Check dependencies error: There is no SDK with the name or path '/' [BEROR]error: There is no SDK with the name or path '/' BUILD FAILED