(?:`)?(?:makeindex`distribution`notice`11`11`1989)?(?:`)?(?:.{,5000})`permission`is`hereby`granted`to`make`and`distribute`original`copies`of`this`program`provided`that`the`copyright`notice`and`this`permission`notice`are`preserved`and`provided`that`the`recipient`is`not`asked`to`waive`or`limit`his`right`to`redistribute`copies`as`allowed`by`this`permission`notice`and`provided`that`anyone`who`receives`an`executable`form`of`this`program`is`granted`access`to`a`machine\-`readable`form`of`the`source`code`for`this`program`at`a`cost`not`greater`than`reasonable`reproduction,`shipping,`and`handling`costs\.`executable`forms`of`this`program`distributed`without`the`source`code`must`be`accompanied`by`a`conspicuous`copy`of`this`permission`notice`and`a`statement`that`tells`the`recipient`how`to`obtain`the`source`code\.`permission`is`granted`to`distribute`modified`versions`of`all`or`part`of`this`program`under`the`conditions`above`with`the`additional`requirement`that`the`entire`modified`work`must`be`covered`by`a`permission`notice`identical`to`this`permission`notice\.`anything`distributed`with`and`usable`only`in`conjunction`with`something`derived`from`this`program,`whose`useful`purpose`is`to`extend`or`adapt`or`add`capabilities`to`this`program,`is`to`be`considered`a`modified`version`of`this`program`under`the`requirement`above\.`ports`of`this`program`to`other`systems`not`supported`in`the`distribution`are`also`considered`modified`versions\.`all`modified`versions`should`be`reported`back`to`the`author\.`this`program`is`distributed`with`no`warranty`of`any`sort\.`no`contributor`accepts`responsibility`for`the`consequences`of`using`this`program`or`for`whether`it`serves`any`particular`purpose\.