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Hi Brendon, It's training workshop time here at the UPC, so answers to questions might be a little slower than usual... re: your CentOS 6.4 setup > It's stock Centos 6.4, compiler versions for gfortran are identical to > what you have listed. Very good. Everything should work nicely if you are using the current gcc and gfortran compilers. re: > However, the makelog seems to indicate McIDAS is > using g77 and not gfortran. How can I specify which compiler to use? This tells me that your setup does not follow the guidelines detailed in the Unidata McIDAS-X Users Guide: Unidata HomePage http://www.unidata.ucar.edu Software -> McIDAS http://www.unidata.ucar.edu/software/mcidas/ Documentation http://www.unidata.ucar.edu/software/mcidas/#documentation Unidata McIDAS-X Users Guide http://www.unidata.ucar.edu/software/mcidas/current/users_guide/toc.html The section to review is: Chapter 1 - Installing and Configuring McIDAS-X http://www.unidata.ucar.edu/software/mcidas/current/users_guide/InstallingandConfiguringMcIDAS-X.html#17470 Installing McIDAS-X on Unix or Mac OS X Workstations http://www.unidata.ucar.edu/software/mcidas/current/users_guide/InstallingMcIDAS-XonUnixorMacOSXWorkstations.html#63755 Preparing the mcidas Account http://www.unidata.ucar.edu/software/mcidas/current/users_guide/PreparingthemcidasAccount.html#22841 The procedure outlined in the last page parallel the concept introduced in GEMPAK: read in setup parameters from an environment file. You need modify your shell definition file (e.g., .cshrc for Cshell, .bash_profile for BASH, etc.). When incorporating the lines outlined in the page above, you should change the VENDOR environment variable to gfortran instead of g77. After modifying the shell definition file, you need to source the file for the changes to take effect, and then redo the McIDAS build. For example: <as 'mcidas'> cd ~mcidas -- edit .bash_profile . .bash_profile cd mcidas2009/src make clobber make (or 'make all', etc.) make install (or 'make install.all', etc.) 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: PTN-814666 Department: Support McIDAS Priority: Normal Status: Closed