我对tessract完全不熟悉。我已成功完成以下步骤，
cd <project-directory>
curl -O https://tesseract-ocr.googlecode.com/files/tesseract-ocr-3.02.02.tar.gz
curl -O http://leptonica.googlecode.com/files/leptonica-1.69.tar.gz
tar -zxvf tesseract-ocr-3.02.02.tar.gz
tar -zxvf leptonica-1.69.tar.gz
rm -f tesseract-ocr-3.02.02.tar.gz
rm -f leptonica-1.69.tar.gz
mv tesseract-3.02.02 jni/com_googlecode_tesseract_android/src
mv leptonica-1.69 jni/com_googlecode_leptonica_android/src
但是当我运行下一步时，
ndk-build -j8
它向我显示以下错误，
[armeabi] SharedLibrary : liblept.so
[armeabi-v7a] SharedLibrary : liblept.so
[x86] SharedLibrary : liblept.so
[mips] SharedLibrary : liblept.so
jni/com_googlecode_leptonica_android/stdio/open_memstream.c:188: error: undefined reference to '__sfp'
jni/com_googlecode_leptonica_android/stdio/fopencookie.c:154: error: undefined reference to '__sflags'
jni/com_googlecode_leptonica_android/stdio/fopencookie.c:161: error: undefined reference to '__sfp'
jni/com_googlecode_leptonica_android/stdio/fmemopen.c:209: error: undefined reference to '__sflags'
jni/com_googlecode_leptonica_android/stdio/fmemopen.c:215: error: undefined reference to '__sfp'
jni/com_googlecode_leptonica_android/stdio/fmemopen.c:215: error: undefined reference to '__sfp'
collect2.exe: error: ld returned 1 exit status
make: *** [obj/local/x86/liblept.so] Error 1
make: *** Waiting for unfinished jobs....