Installing Tesseract from Git

These are instructions for installing Tesseract from the git repository. You should be ready to face unexpected problems.

Installing With Autoconf Tools

In order to do this, you must have aclocal, autoheader, autoconf, automake, libtool and leptonica installed.

On Debian or Ubuntu, you can probably do that with:

    apt-get install autoconf automake libtool libleptonica-dev

Afterwards, the steps for installing the git version of Tesseract, do this:

    git clone https://github.com/tesseract-ocr/tesseract.git tesseract-ocr
    cd tesseract-ocr
    ./autogen.sh
    ./configure
    make
    sudo make install
    sudo make install-langs
    sudo ldconfig

On some systems autotools did not create m4 directory automatically (you got error: "configure: error: cannot find macro directory 'm4'"). In this case you must create m4 dicrectory by yourself before running ./configure:

mkdir -p m4

If you get error:

make  all-recursive
Making all in ccstruct
/bin/sh ../libtool --tag=CXX   --mode=compile g++ -DHAVE_CONFIG_H -I. -
I..  -I../ccutil -I../cutil -I../image -I../viewer -I/opt/local/
include -I/usr/local/include/leptonica  -g -O2 -MT blobbox.lo -MD -MP -
MF .deps/blobbox.Tpo -c -o blobbox.lo blobbox.cpp
mv -f .deps/blobbox.Tpo .deps/blobbox.Plo
mv: rename .deps/blobbox.Tpo to .deps/blobbox.Plo: No such file or
directory
make[3]: *** [blobbox.lo] Error 1
make[2]: *** [all-recursive] Error 1
make[1]: *** [all-recursive] Error 1
make: *** [all] Error 2

try to run autoreconf -i after ./autogen.sh

Windows Visual Studio build

Please follow instructions in Visual Studio 2008 Developer Notes for Tesseract-OCR