Hi, all. I'm trying to do this, but failed. The first thing I do is build leptonica-1.68 and installed to /mingw (the MinGW folder is mounted to /mingw under MSYS)
Then I try to run the configure under Tesseract-ocr folder, and it failed to detect the leptonica library, so I manually change the configure.ac, and set the correct path. looks like: have_lept=no > if test "$LIBLEPT_HEADERSDIR" = "" ; then > LIBLEPT_HEADERSDIR="/mingw/include /usr/include" > fi > for incd in $LIBLEPT_HEADERSDIR > do > for lept in . leptonica liblept > do > if test -r "$incd/$lept/allheaders.h" ; then > CPPFLAGS="$CPPFLAGS -I$incd/$lept" > have_lept=yes > fi > done > done > if test "$have_lept" = yes ; then > AC_MSG_RESULT(yes) > AC_CHECK_LIB(lept,pixCreate,[], AC_MSG_ERROR([leptonica library > missing]), [-lz]) > else > AC_MSG_ERROR([leptonica not found]) > fi > Then, I just run the command: $ make CPPFLAGS="-D__MSW32__ -D_tagBLOB_DEFINED" The second macro definition is try to work around the BLOB definition conflict. But later, I still failed with many build errors, like: libtool: link: ( cd ".libs" && rm -f "libtesseract.la" && cp -p > "../libtesseract.la" "libtesseract.la" ) > /bin/sh ../libtool --tag=CXX --mode=link g++ -g -O2 -o tesseract.exe > tesseractmain.o libtesseract.la -llept -lpthread > libtool: link: g++ -g -O2 -o .libs/tesseract.exe tesseractmain.o > ./.libs/libtesseract.a -L./ -L../ -L../api -L../ccutil -L../viewer > -L../cutil -L../image -L../ccstruct -L../dict -L../classify -L../wordrec > -L../neural_networks/runtime -L../textord -L../cube -L../ccmain > /mingw/lib/liblept.a -lz -lgdi32 -lpthread > tesseractmain.o: In function `main': > e:\project\ch\tesseract-3.01\api/../api/tesseractmain.cpp:100: undefined > reference to `tesseract::TessBaseAPI::TessBaseAPI()' > e:\project\ch\tesseract-3.01\api/../api/tesseractmain.cpp:102: undefined > reference to `tesseract::TessBaseAPI::SetOutputName(char const*)' > e:\project\ch\tesseract-3.01\api/../api/tesseractmain.cpp:104: undefined > reference to `tesseract::TessBaseAPI::Init(char const*, char const*, > tesseract::OcrEngineMode, char**, int, GenericVector<STRING> const*, > GenericVector<STRING> const*, bool)' > e:\project\ch\tesseract-3.01\api/../api/tesseractmain.cpp:117: undefined > reference to `tesseract::TessBaseAPI::GetPageSegMode() const' > e:\project\ch\tesseract-3.01\api/../api/tesseractmain.cpp:120: undefined > reference to `tesseract::TessBaseAPI::Version()' > e:\project\ch\tesseract-3.01\api/../api/tesseractmain.cpp:137: undefined > reference to `STRING::STRING()' > e:\project\ch\tesseract-3.01\api/../api/tesseractmain.cpp:138: undefined > reference to `tesseract::TessBaseAPI::ProcessPages(char const*, char > const*, int, STRING*)' > e:\project\ch\tesseract-3.01\api/../api/tesseractmain.cpp:142: undefined > reference to `tesseract::TessBaseAPI::GetBoolVariable(char const*, bool*) > const' > e:\project\ch\tesseract-3.01\api/../api/tesseractmain.cpp:144: undefined > reference to `tesseract::TessBaseAPI::GetBoolVariable(char const*, bool*) > const' > e:\project\ch\tesseract-3.01\api/../api/tesseractmain.cpp:145: undefined > reference to `STRING::STRING(char const*)' > e:\project\ch\tesseract-3.01\api/../api/tesseractmain.cpp:146: undefined > reference to `STRING::operator+=(char const*)' > e:\project\ch\tesseract-3.01\api/../api/tesseractmain.cpp:147: undefined > reference to `STRING::string() const' > e:\project\ch\tesseract-3.01\api/../api/tesseractmain.cpp:152: undefined > reference to `STRING::length() const' > e:\project\ch\tesseract-3.01\api/../api/tesseractmain.cpp:152: undefined > reference to `STRING::string() const' > e:\project\ch\tesseract-3.01\api/../api/tesseractmain.cpp:145: undefined > reference to `STRING::~STRING()' > e:\project\ch\tesseract-3.01\api/../api/tesseractmain.cpp:137: undefined > reference to `STRING::~STRING()' > e:\project\ch\tesseract-3.01\api/../api/tesseractmain.cpp:100: undefined > reference to `tesseract::TessBaseAPI::~TessBaseAPI()' > e:\project\ch\tesseract-3.01\api/../api/tesseractmain.cpp:118: undefined > reference to > `tesseract::TessBaseAPI::SetPageSegMode(tesseract::PageSegMode)' > e:\project\ch\tesseract-3.01\api/../api/tesseractmain.cpp:149: undefined > reference to `STRING::string() const' > e:\project\ch\tesseract-3.01\api/../api/tesseractmain.cpp:137: undefined > reference to `STRING::~STRING()' > e:\project\ch\tesseract-3.01\api/../api/tesseractmain.cpp:100: undefined > reference to `tesseract::TessBaseAPI::~TessBaseAPI()' > e:\project\ch\tesseract-3.01\api/../api/tesseractmain.cpp:56: undefined > reference to `tesseract::TessBaseAPI::Version()' > e:\project\ch\tesseract-3.01\api/../api/tesseractmain.cpp:145: undefined > reference to `STRING::~STRING()' > collect2: ld returned 1 exit status > make[2]: *** [tesseract.exe] Error 1 > make[2]: Leaving directory `/e/project/ch/tesseract-3.01/api' > make[1]: *** [all-recursive] Error 1 > make[1]: Leaving directory `/e/project/ch/tesseract-3.01' > make: *** [all] Error 2 > > Hope someone can help me. 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