I see that the comment in the lapack test indicates that developers are
aware of this issue.

Are there any known fixes to this problem?  compiler flags, etc.

an upgrade to a more recent gcc is not an option for me.

this occurred while doing make check-all on R-patched_2007-02-11.tar.gz

with the following:

RHEL3 on x86_64 
gcc (GCC) 3.2.3 20030502 (Red Hat Linux 3.2.3-47)
GNU Fortran (GCC 3.2.3 20030502 (Red Hat Linux 3.2.3-47)) 3.2.3 20030502
(Red Hat Linux 3.2.3-47)

code snip:

> ## failed for some 64bit-Lapack-gcc combinations:
> sm <- cbind(1, 3:1, 1:3)
> eigenok(sm, eigen(sm))
Error: abs(A %*% V - V %*% diag(lam)) < Eps is not all TRUE
Execution halted


Thanks in advance,
Whit





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