Compile PHP with... What does it mean?

[saidbakr]

In PHP manual, when it describes installation of additional library, such as GD library, the following
phrase is obtained:
You will also have to compile PHP with --with-jpeg-dir=/path/to/jpeg-6b.
So, What does Compile with PHP means and how it may be done?
Note: My OS is Win Me, Apache WeB Server, PHP installed using PHP windows installer.🙁

[jerdo]

You're using Windows so you don't need to worry about compiling. If you want to enable extra libraries just uncomment them in your php.ini (if they are included with php) and restarting your webserver. Some of those probably won't work since you used the installer instead of the zip file.