Hi

This is FYI

Something nice. It's obscure.

Some games with a constant declaration that might be defined - or not

if defined it is like

#DEFINE StrangeDefine 'Mypath'+

so you understand how it is supposed to work if defined.

note: this will run via codeexecution, but it will not compile as prg

Program1

#IFDEF StrangeDefine
*anything here should not be compiled, because we never defined StrangeDefine
 #IF DIRECTORY(StrangeDefine '')  &&Will be processed during compile
  #DEFINE SomethingElse
*w/o next line compile will fail too, even if # IFDEF returns false
 #ENDIF
#ENDIF

I do not need help, I simply move the def of StrangeDefine around like

Program2

#IFDEF StrangeDefine
 #DEFINE StrangeDefine_found .T.
#ELSE
 #DEFINE StrangeDefine_found .F.
 #DEFINE StrangeDefine
#ENDIF

*.......

#IF StrangeDefine_found
*now it is still not used but compiles
 #IF DIRECTORY(StrangeDefine '')  THEN
  #DEFINE SomethingElse
 #ENDIF
#ENDIF

*.......

#IF !StrangeDefine_found
 #UNDEF StrangeDefine
#ENDIF
#UNDEF StrangeDefine_found

Lutz