{$if defined(fpc2.4.0)} ?

[Fred vS]

Hello everybody 
Does it exists something to say to compiler what to do with certain version of fpc ? For example :

 

Code: [Select]

{$if defined(fpc2.4.0)}
    do something...
     {$else}
   do something else
     {$endif}
Also does it exist something to say to compiler what to do with type of system installed like ?

 

Code: [Select]

{$if defined(Windows XP 32)}
    do something...
     {$else}
{$if defined(Windows 7 32)}
    do something...
     {$else}
   do something else
   {$endif}  {$endif}
Thanks

[Leledumbo]

Here.

[User137]

+ the other thing you explained in other thread, i didn't see it documented but it's rather important:

Code: [Select]

{$ifdef fpc_fullversion <= 20600}

[Leledumbo]

i didn't see it documented

It is in the link I gave above

[Fred vS]

@ Leledumbo + User137 : Many thanks