fixed OpenCV_DIR

android/apps/HelloAndroid/cmake_android.sh

@@ -3,10 +3,11 @@ cd `dirname $0`
 
 BUILD_DIR=build_armeabi
 opencv_android=`pwd`/../..
-opencv_build_dir=$opencv_android/$BUILD_DIR
+opencv_build_dir=$opencv_android/build
 
 mkdir -p $BUILD_DIR
 cd $BUILD_DIR
 
-cmake -DOpenCV_DIR=$opencv_build_dir -DARM_TARGET=armeabi -DCMAKE_TOOLCHAIN_FILE=$opencv_android/android.toolchain.cmake ..
-
+RUN_CMAKE="cmake -DOpenCV_DIR=$opencv_build_dir -DARM_TARGET=armeabi -DCMAKE_TOOLCHAIN_FILE=$opencv_android/android.toolchain.cmake .."
+echo $RUN_CMAKE
+$RUN_CMAKE