Updating XL C/C++ V8.0

An update of XL C/C++ V8.0 provides a fix or multiple fixes to the product.

Every update package comes in a tar (or compressed) format and includes a version of the xlc_install utility that is customized to install only the upgrade that accompanies it. That is why the most recent version of the product must be installed on the computer before you run the xlc_install utility that comes with the update package. You cannot apply an update unless a version of XL C/C++ V8.0 is already successfully installed on the computer.

If you have any version (including an earlier update) of XL C/C++ V8.0, you can apply the latest update. For instructions, see Steps to update a basic installation of XL C/C++ V8.0 or Steps to update an installation of XL C/C++ V8.0 in a non-default location (for advanced users).

If you want to try out a new update of the compiler before you remove the existing one from the system, you must install the new update to a non-default location. After you have verified that you want to use the new update, you can use the xlc_install utility that comes with the update package to perform the following tasks:

  1. Remove the new update from the non-default location.
  2. Remove the previous update from the default location.
    Note:
    Do not uninstall the vac.lic package because this package is required when you perform the next step.
  3. Install the new update to the default location.

For instructions to use the xlc_install utility to install the new update, see Steps to update a basic installation of XL C/C++ V8.0.