Deactive an option

[FranckY]

Hello my friend is there any way to deactivate/disable an option in the make
3.81 

---------------
WARNING: Backward-incompatibility!
  In order to comply with POSIX, the way in which GNU make processes
  backslash-newline sequences in command strings has changed.  If your
  makefiles use backslash-newline sequences inside of single-quoted
  strings in command scripts you will be impacted by this change.  See
  the GNU make manual subsection "Splitting Command Lines" (node
  "Splitting Lines"), in section "Command Syntax", chapter "Writing the
  Commands in Rules", for details.
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Thanks for you answers 
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