# Remove trailing slash from a path passed as argument
Macro(Remove_Trailing_Slash _variable)
  String(FIND ${_variable} "/" _pos_last_slash REVERSE)
  STRING(LENGTH ${_variable} _length)
  Math(EXPR _last_pos ${_pos_last_slash}+1)
  If(${_last_pos} EQUAL ${_length})  
    String(SUBSTRING ${_variable} 0 ${_pos_last_slash} _ret_val)
  Else()
    Set(_ret_val ${_variable})
  EndIf()
EndMacro()