[Ecls-list] Build system on Cygwin

Juan Jose Garcia-Ripoll juanjose.garciaripoll at gmail.com
Wed Aug 15 17:49:46 UTC 2012

On Tue, Aug 7, 2012 at 7:22 PM, Jean-Pierre Flori <jpflori at gmail.com> wrote:

> Still working on building Sage on Cygwin, we realized that the
> produced ECL shared library built on Cygwin is called ecl.dll.
> While this should not be problematic, we also have another file called
> ecl.dll in Sage which builds the interface between Sage and the former
> ecl.dll, and which should be linked to the it.

Hmm, how is this ECL's fault? I mean, Sage's use of ECL is second to the
development of ECL itself :-)

> My point here is that if ECL would follow the naming scheme proposed
> by Cygwin (as libtool does for example):
> http://cygwin.com/cygwin-ug-net/dll.html#dll-build
> this would have the fortunate consequence to make the Sage problem
> disappear.

I've proposed such a patch on Sage Trac in ticket #9167
> (http://trac.sagemath.org/sage_trac/ticket/9167) (it also tweaks the
> build system on MinGW to follow http://www.mingw.org/wiki/sampleDLL).
> If you think this makes sense, I can post a patch on ECL sourceforge page.

Feel free to do so, but you will have to make sure you fix the fact that
ECL is currently NOT using import libraries in any of the ports (cygwin,
mingw, msvc)


Instituto de Física Fundamental, CSIC
c/ Serrano, 113b, Madrid 28006 (Spain)
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