Fwd: failed build with current mercurial sources

[Jaroslav Hajek]

---------- Forwarded message ----------
From: Jaroslav Hajek <address@hidden>
Date: Wed, Mar 19, 2008 at 11:15 AM
Subject: Re: failed build with current mercurial sources
To: "John W. Eaton" <address@hidden>
Cc: Ben Abbott <address@hidden>, "address@hidden mailing list"
<address@hidden>


>  OK, now I see that the problem that we tried to avoid by introducing
 >  libcruft/blas-xtra/xzdotu.f will show up with the zdotc function
 >  called from zqrhqv.  The following changes should avoid the problem,
 >  but at the expense of not using an accelerated version of the zdotc
 >  function.  If we can modify the configure script to detect these kinds
 >  of incompatibilities in the Fortran compilers, then maybe we can
 >  eventually remove the xzdotc.f and xzdotu.f files from Octave.
 >

 attached is a patch that implements ithis check (whether ZDOTC and
 ZDOTU are callable from Fortran) in acx_blas.m4.

 It also makes the libcruft/blas-xtra/xzdot?.f into simple wrappers and reverts
 libcruft/qrupdate/zqrqhv.f to previous revision.


 If incompatibility is detected, the libcruft's BLAS version is used.
 Or is there a better option?




 --
 RNDr. Jaroslav Hajek
 computing expert
 Aeronautical Research and Test Institute (VZLU)
 Prague, Czech Republic
 url: www.highegg.matfyz.cz



-- 
RNDr. Jaroslav Hajek
computing expert
Aeronautical Research and Test Institute (VZLU)
Prague, Czech Republic
url: www.highegg.matfyz.cz

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