Hi, I just updated to svn rev 39899 on a SuSE 10.1/x86_64 system and I get the following error when configuring R: checking for X... libraries /usr/X11R6/lib64, headers /usr/X11R6/include checking for gethostbyname... yes checking for connect... yes checking for remove... yes checking for shmat... yes checking for IceConnectionNumber in -lICE... yes checking X11/Intrinsic.h usability... yes checking X11/Intrinsic.h presence... yes checking for X11/Intrinsic.h... yes checking for XtToolkitInitialize in -lXt... no configure: error: --with-x=yes (default) and X11 headers/libs are not available I'm pretty sure I have the needed libs and headers since I can build yesterday's R. The changes to the admin guide suggest libXt-dev but I don't see that available for my system in yast as a separate package. I _do_ have libXt in /usr/X11R6/lib. + seth