Tesseract OCR and Leptonica image processing library RPM specs and packages
This repo contains rpm spec-files to build Tesseract OCR engine and Leptonica.
Actual versions are: leptonica 1.69 and tesseract 3.02.
Build process is tested on CentOS 6.4. To study RPM building and specs writting see Fedora wiki.
Install base and development tools (or only development tools if you have not a miniman CentOS installation):
yum groupinstall 'Base' 'Development Tools'
yum install rpmdevtools rpmlint createrepo
Create non-privileged user to build RPMs and setup build environment:
/usr/sbin/useradd --gid users --create-home makerpm
passwd makerpm
su - makerpm
rpmdev-setuptree
Log in as makerpm, download source files, install build dependencies and build package itself:
su - makerpm
curl https://raw.githubusercontent.com/grossws/tesseract-ocr-specs/master/utils/download_sources.sh | bash
sudo yum-builddep leptonica.spec
rpmbuild -ba leptonica.spec
Then install built leptonica-devel and build tesseract with its langpacks:
sudo yum install $HOME/rpmbuild/RPMS/$(uname -m)/leptonica{,-devel}-1.69-*.rpm
sudo yum-builddep tesseract.spec
rpmbuild -ba tesseract.spec
sudo yum install $HOME/rpmbuild/RPMS/$(uname -m)/tesseract{,-devel}-3.02-*.rpm
rpmbuild -ba tesseract-langpack.spec
Now you have all RPMs in $HOME/rpmbuild/RPMS/$(uname -m)/.
If you want to start you own repo with this files, you should create appropriate directory structure,
generate metadata and serve it using you web (nginx, lighttpd or apache) or ftp server (any of ftpd’s).
mkdir -p $HOME/repo/centos/6/{i386,x86_64,SRPMS}
cp $HOME/rpmbuild/SRPMS/* $HOME/repo/centos/6/SRPMS/
cp $HOME/rpmbuild/RPMS/$(uname -m)/* $HOME/repo/centos/6/$(uname -m)/
cp $HOME/rpmbuild/RPMS/noarch/* $HOME/repo/centos/6/$(uname -m)/
createrepo $HOME/repo/centos/6/$(uname -m)
createrepo $HOME/repo/centos/6/SRPMS
After that you can serve files from repo directory via web or ftp server and add repo-file to /etc/yum.repos.d:
[my-repo-name]
name = My CentOS $releasever Repository
baseurl = http://example.org/repo/centos/$releasever/$basearch # if you use http
#baseurl = ftp://example.org/repo/centos/$releasever/$basearch # if you use ftp
#baseurl = file:///home/makerpm/repo/centos/$releasever/$basearch # if you use local filesystem/nfs/cifs
enabled = 1
protect = 0
gpgcheck = 0
tesseract package initial maintainer)