Hi, Yesterday I was trying to compile kde trunk using kdesvn-build script, as explained in techbase, however, I get some errors during compilation of kdepimlibs. Reading the log of the error, I see that I don't have libical >= 0.42 installed, but it says that is optional: ----------------------------------------------------------------------------- -- The following OPTIONAL packages could NOT be located on your system. -- Consider installing them to enable more features from this software. ----------------------------------------------------------------------------- * libical (0.42 or higher) Reference implementation of the iCalendar data type and serialization format Required for the critical PIM kcal library. ----------------------------------------------------------------------------- However, kdepimlibs refused to compile until I installed libical >= 0.44, so, it seems like this library is not optional.