IBM Support

XL C/C++ Runtime for Linux Fix Pack 7 (May 2014 Update) for 12.1



IBM XL C/C++ Runtime for Linux has been made generally available and contains fixes to version 12.1 including all predecessor fix packs.

Download Description

If you wish to run an application developed using the IBM XL C/C++ for Linux, 12.1 compiler, but do not have the corresponding version of compiler installed, then you need to install the Runtime Environment package.

Table of Contents
Sections Description

The Change history section provides an overview on what is new in this release with a description of any new functions or enhancements when applicable.

The How critical is this fix section provides information related to the impact of this release to allow you to assess how your environment may be affected.

The Prerequisites section provides important information to review prior to the installation of this release.

The Download package section provides the direct link to obtain the download package for installation in your environment.

The Installation instructions section provides the installation instructions necessary to apply this release into your environment.

The Known side effects section contains a link to the known problems (open defects) identified at the time of this release.

Supporting Documentation
Document Description

Click to review the detailed system requirements information for a complete list of hardware requirements, supported operating systems, prerequisites and optional supported software, with component-level details and operating system restrictions.

IBM Knowledge Center provides an entry point to product documentation. You can view, browse, and search online information related to the product.

You can also visit the XL C/C++ for Linux library to review additional documentation.

Click to review a complete list of the defects (APARs) resolved in this release including a list of resolved defects for the entire version family.

Find technical developer content and resources.


Prerequisites include:

Operating system:

  • Red Hat Enterprise Linux 5.7 (RHEL 5.7)
  • Red Hat Enterprise Linux 6.2 (RHEL 6.2)
  • SUSE Linux Enterprise Server 10 Service Pack 4 (SLES 10 SP4)
  • SUSE Linux Enterprise Server 11 Service Pack 2 (SLES 11 SP2)


Disk space:

  • 45 MB

Installation Instructions

Review the installation instructions.

Terms and Conditions: By downloading, installing, copying, accessing or using this software you agree to the terms and conditions outlined in the License Agreement. Please review the License Agreement and License Information documents prior to proceeding with download or installation.

Installation instructions

To install this software, complete the following steps:

  1. You must install the Runtime environment packages before installing the addons packages, if installing both.
    Starting from XL C/C++ 12.1 RTE, xlsmp.lib is introduced in the addons package.

  2. Download, unzip and untar the rpm packages.

    For example:

    gunzip {filename}.tar.gz
    tar -xvf {filename}.tar

  3. You must uninstall any previous versions of the rpms if any are installed. Do not uninstall rpms that you are not upgrading.

    To uninstall an rpm package, use the following command:

    rpm -e {package name}

    You must uninstall Runtime environment rpm packages in the following order:

    rpm -e vacpp.rte-x.x.x.x-YYMMDD
    rpm -e xlsmp.rte-x.x.x.x-YYMMDD
    rpm -e xlsmp.msg.rte-x.x.x.x-YYMMDD

    You can uninstall addons rpm packages in any order.

    For example:

    rpm -e vac.lib-x.x.x.x-YYMMDD
    rpm -e vacpp.rte.lnk-x.x.x.x-YYMMDD
    rpm -e xlsmp.lib-x.x.x.x-YYMMDD

    where x.x.x.x-YYMMDD refers to the level of the rpm package installed on your system.

    To determine the level, use the following commands:

    rpm -q vacpp.rte
    rpm -q xlsmp.rte
    rpm -q xlsmp.msg.rte
    rpm -q vac.lib
    rpm -q vacpp.rte.lnk

    In cases where an rpm package is required by other installed packages, for example, XL Fortran, the shared package may not uninstall. To upgrade a shared package, specify the --nodeps option with your rpm command.

    For example:

    rpm -e --nodeps xlsmp.rte-x.x.x.x-YYMMDD

  4. Install the packages using the following command:
    rpm -ivh {package name}

    You must install the Runtime environment rpm packages in the following order:

    rpm -ivh xlsmp.msg.rte-x.x.x.x-YYMMDD.ppc64.rpm
    rpm -ivh xlsmp.rte-x.x.x.x-YYMMDD.ppc64.rpm
    rpm -ivh vacpp.rte-x.x.x.x-YYMMDD.ppc64.rpm

    You can install the addons rpm packages in the following order:

    rpm -ivh vac.lib-x.x.x.x-YYMMDD.ppc64.rpm
    rpm -ivh vacpp.rte.lnk-x.x.x.x-YYMMDD.ppc64.rpm
    rpm -ivh xlsmp.lib-x.x.x.x-YYMMDD.ppc64.rpm

    where x.x.x.x refers to the version number, and YYMMDD represents the build date of the rpms.

  5. Uninstallation Instructions

    To uninstall Runtime environment component, run the following commands:
    rpm -e vacpp.rte-x.x.x.x-YYMMDD
    rpm -e xlsmp.rte-x.x.x.x-YYMMDD
    rpm -e xlsmp.msg.rte-x.x.x.x-YYMMDD

    To uninstall addons software, run the following commands:
    rpm -e vac.lib-x.x.x.x-YYMMDD
    rpm -e xlsmp.lib-x.x.x.x-YYMMDD
    rpm -e vacpp.rte.lnk-x.x.x.x-YYMMDD

    where x.x.x.x refers to the version number, and YYMMDD represents the build date of the rpms.

    In cases where an rpm package is required by other installed packages, that package might not uninstall.

Download Package

Package vacpp.rte.121.linux_ppc.may2014.update.tar.gz contains the following content:


How critical is this fix?

Impact Assessment
Impact Description

This is a maintenance release. It contains fixes for client-reported and internally found defects.

Test Results


Regression: An error in the Maintenance Delivery Vehicle (MDV) that produces incorrect or unexpected behavior causing a supported feature to stop functioning as designed.
This includes:

  • Coding errors that cause a regression
  • Documentation or packaging problems that cause a regression
  • Errors reported in a new function delivered in a MDV that cause a regression

Incomplete: An error in the MDV has not regressed, but does not work as designed.
This includes:

  • Fixed APARs which did not solve the original problem but did not break anything new
  • APARs reporting documentation errors, such as readme errors, that cause problems applying an MDV but do not lead to a regression

  • Regression and incomplete APARs are considered fix-in-error or MDV-in-error
  • Definitions above apply only to valid APARs that result in product fixes (APARs returned as working-as-designed are not assessed for being fix-in-error)
  • Issues in major releases due to new functionality do not apply in this definition

There are no known regressions to report.

Problems Solved

Defects resolved

Click the Fix List link in the table of contents above to review a list of the problems solved in this release.

Known Side Effects

Review the following list of known issues and open defects:

There are no known issues report.

Open defects

Review the following list of open defects for IBM XL C/C++ for Linux on the IBM Support Portal.

Review technote 1461170: Open APARs for Rational products available on the Web for information on how to configure your MyNotifications subscription account and subscribe to the APARs you are interested in following.

Change History

What's new

No new features or functions.

Click the link in the Download Options column:

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Technical Support

The IBM XL C/C++ for Linux Runtime environment is not supported as a stand-alone software product.

If you suspect a problem with the IBM XL C/C++ Runtime environment component while using it with a third-party application, contact your application provider for support.

Full support (installation, defect support and general questions) for the IBM XL C/C++ Runtime environment component is available with the software subscription and support agreement for the XL Fortran Compilers.

A suitable test case is required for defect support; review technote 1260804: Test case preparation for IBM XL compilers support for details.

Depending on your application, you may also need to install the IBM XL C/C++ Addons for Linux 12.1 package.
* The Addons package contains files that may be required by some third-party applications.
* Only download and install the Addons package if instructed by your application provider.

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Problems (APARS) fixed

Document Information

Modified date:
08 August 2018