How to add a library to Qt?

Question

Qt

I need to include the openbabel library in my qt project for desktop devices,
tell me how to do it? I downloaded open-babel-2-4-0.zip
and try to connect like this, but it doesn't work:

LIBS += \
    -L$$E:/libs/openbabel-openbabel-2-4-0/include/openbabel -lopenbabel

Answer 1

Almost right. Fixes:
LIBS+=-l/path/to/file/lib
INCLUDEPATH+=/path/to/folder/c/includes