How do you add library files in Qt?

There are several methods for adding library files in Qt.

1. Using the .pro file: Add library files to your project’s .pro file using the LIBS keyword. You can specify the location of the library files using either absolute or relative paths. For example:

LIBS += -L/path/to/library -lmylibrary

1. To use Qt Creator: open the project in Qt Creator, locate the .pro file in the project tree, right-click and select “Add Library”, then choose “External Library” or “System Library”, and specify the path and name of the library file.
2. Use QMake in code: Add library files in code files using QMake command. For example:

LIBS += -L/path/to/library -lmylibrary

1. When using CMake: If your project utilizes the CMake build system, you can employ the target_link_libraries command to add library files. For example:

target_link_libraries(myproject PRIVATE /path/to/library/libmylibrary.so)

1. Manually copy library files: Copy library files manually into the project directory and reference them using relative paths in the code. For example:

#include "../mylibrary/mylibrary.h"

The most common and recommended way to add library files among these methods is by using a .pro file or Qt Creator.