Re: [Plplot-devel] libieee.a is no more

[Alan W. I. <ir...@be...>]

On 2017-12-12 15:36-0700 Orion Poplawski wrote:

> Apparently glibc is dropping libieee.a in the next release.  In Fedora
> Rawhide, -mieee-fp on i686 results in:
>
> /usr/bin/ld: Cannot find -lieee
>
> Dropping -mieee-fp from csiro.cmake fixes it for me.

Hi Orion:

For i686 hardware and your patched case, what is the result of the test?

In other words, does the CMake output say

"Check for NaN awareness in C compiler - found"

or

"Check for NaN awareness in C compiler - not found"

followed by

WARNING: Setting PL_HAVE_QHULL and WITH_CSA to OFF.

?

The latter result is a fairly serious constraint on our plgrid
function for i686 hardware.  So I am hoping for the former result
since that simply means the gcc option -mieee-fp is no longer required
to get this NaN test to work correctly on i686 hardware.

Alan
__________________________
Alan W. Irwin

Astronomical research affiliation with Department of Physics and Astronomy,
University of Victoria (astrowww.phys.uvic.ca).

Programming affiliations with the FreeEOS equation-of-state
implementation for stellar interiors (freeeos.sf.net); the Time
Ephemerides project (timeephem.sf.net); PLplot scientific plotting
software package (plplot.sf.net); the libLASi project
(unifont.org/lasi); the Loads of Linux Links project (loll.sf.net);
and the Linux Brochure Project (lbproject.sf.net).
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