#8278: cygwin: cvxopt doesn't build on cygwin/windows due to missing complex.h
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Reporter: was | Owner: tbd
Type: defect | Status: new
Priority: major | Milestone: sage-4.5.2
Component: cygwin | Keywords:
Author: | Upstream: N/A
Reviewer: | Merged:
Work_issues: |
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Comment(by pjeremy):
Replying to [comment:6 drkirkby]:
> complex.h is the header file that you need, but you almost certainly
need the C99 libraries too. So it's not as simple as just adding a
complex.h file.
And the complex.h needs to match the C99 libraries.
> I'm cc'ing Peter on this, as I know he has (or at least did have), C99
issues on FreeBSD.
cephes was introduced to provide C99 functions for Cygwin. FreeBSD does
not provide a complete C99 library and I've written a number of tickets to
use cephes to provide the missing functionality. See trac tickets #9543
and #9601 (both of which include patches, though they haven't been
converted to new SPKG files yet). numpy also needs the same patch as
#9601 but I haven't updated the relevant trac ticket for that yet.
Note that the patch in #9543 relies on some ELF shared library magic (and
installs a $SAGE_LOCAL/libm.so that includes the cephes functions and
automatically falls back to the base libm.so for other functions) that may
not work in Cygwin (on Cygwin, cephes installs C99 libraries as
$SAGE_LOCAL/libm{c,d,f,l}.a and any other SPKGs needing to reference those
libraries will need patches to their link steps).
--
Ticket URL: <http://trac.sagemath.org/sage_trac/ticket/8278#comment:7>
Sage <http://www.sagemath.org>
Sage: Creating a Viable Open Source Alternative to Magma, Maple, Mathematica,
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