On Wed, Mar 27, 2013 at 9:43 PM, דור פרידמן <dof1985 at gmail.com> wrote: ... > checking for lex... no > configure: error: *** Unable to locate lex. You need to install some development packages (e.g. (f)lex). See http://grasswiki.osgeo.org/wiki/Compile_and_Install_Ubuntu#Current_stable_Ubuntu_version Markus