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Hi Kwan, re: > In the logfile, it says: > > configure: error: cannot find yacc utility > > Perhaps I should check if yacc has been installed? Yes, but typically the package to be installed on a RedHat variant version of Linux is byacc. Here are the packages that I found that I had to install when first configuring a CentOS 6.x system: Development -------------------------------------- gcc-gfortran gcc-c++ byacc flex ncurses-devel libXt-devel libXext-devel ADDE -------------------------------------- xinetd Fonts -------------------------------------- xorg-x11-fonts-misc <- for mctext xorg-x11-fonts-100dpi <- for McGUI xorg-x11-fonts-75dpi <- for McGUI For LDM 6.11.x -------------------------------------- libxml2-devel Question: - didn't you build McIDAS-X v2009x on this system previously? If yes, yacc/byacc would have had to been installed. Cheers, Tom -- **************************************************************************** Unidata User Support UCAR Unidata Program (303) 497-8642 P.O. Box 3000 address@hidden Boulder, CO 80307 ---------------------------------------------------------------------------- Unidata HomePage http://www.unidata.ucar.edu **************************************************************************** Ticket Details =================== Ticket ID: LOB-532260 Department: Support McIDAS Priority: Normal Status: Closed =================== NOTE: All email exchanges with Unidata User Support are recorded in the Unidata inquiry tracking system and then made publicly available through the web. If you do not want to have your interactions made available in this way, you must let us know in each email you send to us.