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Created attachment 916541 [details]
Fix issue with zero value handling in BLAS functions

+++ This bug was initially created as a clone of Bug #1117491 +++

Description of problem:

R is bundling a copy of BLAS specifically to resolve an issue where certain functions only operate on values when they are not equal to zero, but zero is a valid value in those cases. This patch resolves the issue (and has been sent to upstream LAPACK for resolution.)

Without this issue, R on EL-6 (and EL-7) does not operate correctly. We could work around this issue by using the bundled BLAS/LAPACK on those build targets, but we would strongly prefer not to do this.

There is a rather large userbase for R on RHEL (I know because I maintain R in EPEL and I get a lot of .edu and .gov emails when it breaks). Please take this patch and push the update asap.

Red Hat Enterprise Linux 6 is in the Production 3 Phase. During the Production 3 Phase, Critical impact Security Advisories (RHSAs) and selected Urgent Priority Bug Fix Advisories (RHBAs) may be released as they become available.

The official life cycle policy can be reviewed here:

http://redhat.com/rhel/lifecycle

This issue does not meet the inclusion criteria for the Production 3 Phase and will be marked as CLOSED/WONTFIX. If this remains a critical requirement, please contact Red Hat Customer Support to request a re-evaluation of the issue, citing a clear business justification. Note that a strong business justification will be required for re-evaluation. Red Hat Customer Support can be contacted via the Red Hat Customer Portal at the following URL:

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