On Thu, Aug 06, 2009 at 12:43:05PM +0200, Antonio Valentino wrote: > The unset command seems to be undocumented in cmake 2.6.2 (the one > packaged in ubuntu jaunty). > Is it new? Newer than 2.6.2, yes. Not sure if it's different for cache variables but you can use set(myVar) in 2.6.2 to get the same effect for regular variables. tyler