#10042: Doctest failure in sage/rings/polynomial/polynomial_element.pyx
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Reporter: mpatel | Owner: mvngu
Type: defect | Status: positive_review
Priority: blocker | Milestone: sage-4.6
Component: doctest | Keywords:
Author: Dima Pasechnik | Upstream: N/A
Reviewer: Leif Leonhardy | Merged:
Work_issues: |
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Comment(by drkirkby):
Worth noting is:
* lapack.a gets copied to $SAGE_LOCAL/lib in the lapack-20071123.p1.spkg
* On OS X, the ATLAS package is not built.
* On Linux and Solaris, ATLAS get's built, creates a new lapack.a (I
believe).
* There's a comment dated 28th November 2007 in SPKG.txt for ATLAS that:
''ATLAS produces borked lapack.so which has missing symbols''
* On Linux, Solaris and FreeBSD, there's some code in the ATLAS package
for creating a shared liblapack.so from the static liblapack.a
* On Solaris, the liblapack.so get's deleted as it causes problems with
R.
So on OS X, one only needs to look at the LAPACK code, but on Linux,
FreeBSD and Solaris one needs to consider what ATLAS might do too.
Also note that on my system, the output of my Noddy C program can't be
changed by changing the compiler flags to use the 387 or SSE instructions.
It always gives the output expected by the doctest.
Dave
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/10042#comment:74>
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