# Fo

Specifies the name for an object file.

## Syntax

Linux: | See option o.

macOS: | See option o.

Windows: | /Fo[[:]filename|dir]

## Arguments

filename | Is the name for the object file.
dir | Is the directory where the object file should be placed. It can include filename.

## Default

OFF | An object file has the same name as the name of the first source file and a file extension of .obj.

## Description

This option specifies the name for an object file.

## IDE Equivalent

Visual Studio: Output Files > Object File Name

## Alternate Options

None

Parent topic: Output, Debug, and Precompiled Header (PCH) Options

## See Also

o compiler option