[Lazarus] where do I put project wide conditional define?

[Juha Manninen]

On Tue, Apr 19, 2016 at 2:17 PM, Dennis <dec12 at avidsoft.com.hk> wrote:
> Where do I put
> {$DEFINE USE_XYZ}
>
> so that when I rebuild the project, fpc will see USE_XYZ is defined.

In Project Options:
Compiler Options -> Custom Options - > Defines ...

Juha