게시판에 있는 강좌 보면서 tesseract를 오픈소스를 NDK로 컴파일 하려고하는데 다음과  jni.h를 찾을수 없다고 에러가 나오네요

어떻게 해야 해결을 할수 있을지 조언 부탁 드립니다.  참고로 cygwin, 우분투에서 해봤는데 똑같이 에러가 나오네요

:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:18:30: error: nativehelper/jni.h: No such file or directory
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:46: error: 'jfieldID' does not name a type
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:51: error: 'jbyteArray' does not name a type
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:52: error: ISO C++ forbids declaration of 'jbyte' with no type
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:52: error: expected ';' before '*' token
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp: In constructor 'native_data_t::native_data_t()':
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:49: error: class 'native_data_t' does not have any field named 'image_obj'
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:49: error: class 'native_data_t' does not have any field named 'image_buffer'
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp: At global scope:
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:58: error: 'get_native_data' declared as an 'inline' variable
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:58: error: 'JNIEnv' was not declared in this scope
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:58: error: 'env' was not declared in this scope
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:58: error: 'jobject' was not declared in this scope
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:58: error: initializer expression list treated as compound expression
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:58: error: expected ',' or ';' before '{' token
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:226: error: 'jboolean' does not name a type
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:281: error: variable or field 'ocr_set_encoded' declared void
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:281: error: 'JNIEnv' was not declared in this scope
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:281: error: 'env' was not declared in this scope
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:281: error: 'jobject' was not declared in this scope
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:282: error: 'jbyteArray' was not declared in this scope
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:306: error: variable or field 'ocr_normalize_bg' declared void
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:306: error: 'JNIEnv' was not declared in this scope
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:306: error: 'env' was not declared in this scope
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:306: error: 'jobject' was not declared in this scope
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:307: error: 'jint' was not declared in this scope
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:307: error: 'jint' was not declared in this scope
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:307: error: 'jint' was not declared in this scope
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:328: error: variable or field 'ocr_set_image' declared void
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:328: error: 'JNIEnv' was not declared in this scope
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:328: error: 'env' was not declared in this scope
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:328: error: 'jobject' was not declared in this scope
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:329: error: 'jbyteArray' was not declared in this scope
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:330: error: 'jint' was not declared in this scope
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:330: error: 'jint' was not declared in this scope
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:331: error: 'jint' was not declared in this scope
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:353: error: variable or field 'ocr_release_image' declared void
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:353: error: 'JNIEnv' was not declared in this scope
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:353: error: 'env' was not declared in this scope
C:/cygwin/home/keti/SRC/mezzofanti/jni/tesseract/api/jni.cpp:353: error: 'jobject' was not declared in this scope
make: *** [/home/keti/SRC/mezzofanti/obj/local/armeabi/objs/ocr/api/jni.o] Error 1