This is the first time I am asking a question here.
I want to use Tesseract API in QT. My idea was to design a programme using QT that would read aloud messages (QSpeech) from Telegram Desktop version (not that important).
Tesseract came across as a tool I needed so I tried to implement it. I wanted to use its API, but finally I ended up using QProcess to call Tesseract as a programme.
HERE'S THE PROBLEM.
After including tesseract and leptonica libraries to .pro file i get this:
(.qtversion[qt_version_tag]+0x0):-1: error: undefined reference to `qt_version_tag'
How to fix it?
I included the libs.
INCLUDEPATH += "/usr/include"
LIBS += -L"/usr/local/lib" -ltesseract
INCLUDEPATH += "/usr/include"
LIBS += -L"/usr/lib/x86_64-linux-gnu" -llept
I downloaded QT from the official website. Tesseract API code is an example taken from the documentation. From the same documentation I followed instructions to download everything needed. As I mentioned before, if I compile a text file with the code sample, then it works fine. I just can't integrate it into QT.
Tesseract and Leptonica create pkg-config files, so you didn't have to manually add INCLUDEPATH or LIBS to your project, instead use
QT_CONFIG -= no-pkg-config
Config *= link_pkgconfig
PKGCONFIG *= tesseract
If it doesn't work for you, check whether the Tesseract is installed correctly (also check that you have tesseract.pc file in your system).