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Bug#: 197796
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Status: RESOLVED
Resolution: FIXED
Assigned To: Gentoo Science Related Packages <sci@gentoo.org>
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Reporter: David Radice <david.e.pi.3.14@gmail.com>
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Filename Description Type Creator Created Size Actions
arpack-arscnd-3.patch Modified version of the patch from http://news.tiker.net/node/373 patch David Radice 2007-11-01 18:20 0000 78.96 KB Details | Diff
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Bug 197796 depends on: Show dependency tree
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Description:   Opened: 2007-11-01 18:17 0000 
Both arpack and lapack exports the symbol "SECOND", the first as a subroutine,
the latter as a function. Usually the linker does a good job linking with the
right symbol, but sometimes it does the wrong thing so apps built with lapack
and arpack can behave very strangely and/or segfault. 

This issue seems to be x86 related, and x86_64 seems to be unaffected.

See the Debian bug report for more infos:

http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=315570 

The only known solution is to patch arpack and change SECOND --> ARSCND (or
something else) on the x86 arch. I am going to attach a slightly modified
version (to make the patch works with the Gentoo patchset) of the patch found
here:

http://news.tiker.net/node/373

------- Comment #1 From David Radice 2007-11-01 18:20:54 0000 ------- 
Created an attachment (id=134930) [details]
Modified version of the patch from http://news.tiker.net/node/373

This should be applied after the autotools patch. The gcc-4.2 patch is merged
into this patch: gcc-4.2.patch patches a file which is removed by the new
patch, I have modified the new arcscnd.f file to avoid the known issue with the
gfortran-4.2 in the same way as the gcc-4.2.patch was doing with second.f.

------- Comment #2 From Sébastien Fabbro 2007-11-02 13:15:13 0000 ------- 
Added in cvs. Thanks!
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