#6743: cygwin metaticket: port Sage to Microsoft Windows (via Cygwin): stage 1
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make building Sage automatic
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Reporter: was | Owner: was
Type: enhancement | Status: needs_info
Priority: major | Milestone: sage-5.9
Component: porting: Cygwin | Resolution:
Keywords: sd31 sd32 | Work issues:
Report Upstream: N/A | Reviewers: Jean-Pierre Flori, Dmitrii
Pasechnik, Karl-Dieter Crisman, Mike Hansen, William Stein, Luis Tabera
Authors: | Merged in:
Dependencies: | Stopgaps:
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Comment (by leif):
Replying to [comment:225 jpflori]:
> Replying to [comment:224 jpflori]:
> > Replying to [comment:222 leif]:
> > > Replying to [comment:221 jpflori]:
> > > > Strange that the fact $SAGE_LOCAL/bin is in $PATH is not
sufficient but whatever.
> > > > And not sure why in sage-enc $SAGE_LOCAL/lib is appended rather
than prepended.
> > > > I mean, were prepending $SAGE_LOCAL/bin, so...
> > >
> > > ? In both cases (`PATH` as well as `LD_LIBRARY_PATH`), directories
get '''pre'''pended (provided they exist).
> > It seems PATH is not, in sage-env:
> > {{{
> > export PATH="$SAGE_PACKAGES/bin:$SAGE_LOCAL/bin:$PATH"
> > }}}
> And I think it's normal.
> We want Sage binaries to be found first.
>
> As far as [LD_]LIBRARY_PATH is concerned, I wouldn't find it so
disturbing to prepend SAGE local dirs as well.
>
> But note that PATH is usually set (or the shell used might not be so
useful) whereas [LD]_LIBRARY_PATH is not.
> So prepending our local values in the first case is really the most
sensible choice, whereas in the second you might think that the user has
added something unusual knowingly and he wants it first, if that breaks
that's his problem.
I still don't understand what you mean. In both cases, we already prepend
''Sage's'' directories, such that Sage's shared libraries and binaries
come first.
(That's orthogonal to putting DLLs into `*/bin/` or adding DLL dirs to
`PATH` on Cygwin. Note that IIRC we already do the former for some
packages, so if you add `$SAGE_LOCAL/lib/` to `PATH` as well, we IMHO
should no longer copy DLLs into `$SAGE_LOCAL/bin/`.)
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Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/6743#comment:228>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
and MATLAB
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