' FB 1.05.0 Win64

#If __FB_VERSION__ < "1.05.0"   '' version 1.05.0 is now OK
  #Error "Compiler version is too old - needs to be 1.05.0 or later"
#EndIf

Dim bloop As Integer = -15
#IfDef bloop
  #IfDef Abs
    Print "Abs(bloop) = "; Abs(bloop)
  #Else
    Print "Abs is not available"
  #EndIf
#Else
  Print "bloop does not exist"
#EndIf
Sleep