# qtbb, Qtbb

Tells the compiler to link to the Intel® oneAPI Threading Building Blocks (oneTBB) libraries.

## Syntax

Linux: | -qtbb

macOS: | -qtbb

Windows: | /Qtbb

## Arguments

None

## Default

OFF | The compiler does not link to the oneTBB libraries.

## Description

This option tells the compiler to link to the Intel® oneAPI Threading Building Blocks (oneTBB) libraries and include the oneTBB headers.

### Note

On Windows* systems, this option adds directives to the compiled code, which the linker then reads without further input from the driver. You do not need to specify a separate link command.

On Linux* and macOS systems, the driver must add the library names explicitly to the link command. You must use option -qtbb to perform the link to pull in the dependent libraries.

## IDE Equivalent

Visual Studio: None

Eclipse: Performance Library Build Components > Use Intel® oneAPI Threading Building Blocks

Xcode: Performance Library Build Components > Use Intel® oneAPI Threading Building Blocks

## Alternate Options

Linux: -tbb (this is a deprecated option)

Parent topic: Advanced Optimization Options