Configuring XL C/C++ (for advanced users)

Before you can run XL C/C++ for Linux, you must configure (or re-configure) the compiler if any of the following conditions apply:

Two configuration tools are provided with the compiler: new_install and vac_configure, both located in the installation_path/vacpp/8.0/bin/ directory after installation.

It is recommended that you use the new_install utility to configure the compiler, provided that all of the following conditions are met: For instructions, see Running the new_install utility (for advanced users).

You should invoke the vac_configure utility directly only when any of the following is true:

Note: If you configure the compiler using vac_configure, your output configuration file, vac.cfg, can be written to any location where you have write permission. You would not need root or administrative privileges.

For instructions, see Running the vac_configure utility directly (for advanced users).