1) The effect of "make clean" is the "more standard". I checked with some programs of which I have the source installed and no remove config.cache with only clean. 2) When you have config.cache and you rerun configure you obtain a lot of line of the type "something (cached)". The meaning of this must perhaps be explained in the documentation. guido masarotto -.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.-.- r-devel mailing list -- Read http://www.ci.tuwien.ac.at/~hornik/R/R-FAQ.html Send "info", "help", or "[un]subscribe" (in the "body", not the subject !) To: r-devel-request@stat.math.ethz.ch _._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._._