changing build command for openCV on Android NDK mac OS X -

i using eclipse classic 4.2.1 juno on mac os x 10.6.8 snow leopard, android sdk , ndk installed.

in following tutorial

http://docs.opencv.org/doc/tutorials/introduction/android_binary_package/o4a_sdk.html#o4a-sdk

it says,

"after initial import, on non-windows (linux , mac os) operating system eclipse still show build errors applications native c++ code. resolve issues, please following: open project properties -> c/c++ build, , replace “build command” text "${ndkroot}/ndk-build" (remove .cmd @ end)."

when go project properties there no "c/c++ build" option in menu, how change build command?

after install eclipse cdt, "c/c++ build" shown. if install it, can find in eclipse properties not project properties.