# Variables properties (C/C++ Project Properties)

Customizes the Eclipse CDT build environment variables for all projects in the workspace; it lets you control the environment variables used by the build to for the purposes of building the selected configuration.

Variables preferences

Environment variables to set

Shows the current list of environment variables and their corresponding value. These are the environment variable values used when running an application.

Configuration

Click here for a description.

Manage configurations

Click here for a description.

(The variables table)

Lists the CDT build variables and system variables, by Name, Type, and the Value. Custom Build variables are identified by the name being highlighted using a bold font.

Name

Indicates the name of the variable, either a user defined variable or a system variable.

Type

Shows the type for the variable.

Value

Specifies the value of the variable.

Show system variables

When selected, system variables are included in the Variables table; otherwise, they are excluded so that only user defined variables appear in the Variables list.

Add

Creates a new variable and corresponding value.

Edit

Modifies the name and value of the selected variable.

Delete

Removes the selected variables from the list. Note: Some variables are read-only and cannot be removed.

- Project Properties, Resource page
- Project Properties, Builders page
- Project Properties, C/C++ Build category
  - Discovery options page
  - Environment page
  - Settings page
    - Tool Settings tab
    - Build Steps tab
    - Build Artifact tab
    - Binary Parsers tab
    - Error Parsers tab
  - Tool chain editor page
  - Variables page
- Project Properties, C/C++ General category
  - Documentation page
  - File Types page
  - Indexer page
  - Language Mapping page
  - Paths and Symbols page
    - Includes tab
    - Symbols tab
    - Libraries path tab
    - Source Location tab
    - References tab
- C/C++ Project Properties, Project References page
- C/C++ Project Properties, Refactoring History page
- C/C++ Project Properties, Run/Debug Settings page