Installing an update

An update of XL C/C++ V8.0 for Linux provides a fix or multiple fixes to the product. You can download updates from the support web site: http://www.ibm.com/software/awdtools/xlcpp/support

Every update package comes in tar.gz (or compressed) format and includes a version of the xlc_install utility that is customized to install only the update that accompanies it. If you have any version (including an earlier update) of XL C/C++ V8.0 for Linux installed on your system, you can apply the latest update. If you are applying the update to an installation in the default location, follow the procedure in Running the xlc_install utility to update a basic installation. If you are applying the update to an installation in a non-default location, you must use one of the procedures in Installing XL C/C++ to a non-default location (for advanced users).

If you want to try out a new update of the compiler before you remove the existing version from the system, you must install the new update to a non-default location. After you have verified that you want to replace the older version with the new update, you can run the xlc_install utility that comes with the update package, and it will do all of the following:
  1. Remove the new update from the non-default location
  2. Remove the older version from the default location
    Note: Do not uninstall the vac.lic package because this package is required for the next step.
  3. Re-install the new update to the default location
For instructions to use the xlc_install utility to install the new update, see Running the xlc_install utility to update a basic installation.