Geometry Boost List: [ggl] Fwd: [postgis-devel] Fixing floating point precision issues under gcc

Subject: [ggl] Fwd: [postgis-devel] Fixing floating point precision issues under gcc
From: Mateusz Łoskot (mateusz)
Date: 2011-12-15 20:56:48

Folks,

This may be of interest here too:

---------- Forwarded message ----------
From: Mark Cave-Ayland <mark.cave-ayland_at_[hidden]>
Date: 15 December 2011 10:11
Subject: [postgis-devel] Fixing floating point precision issues under gcc
To: PostGIS Development Discussion <postgis-devel_at_[hidden]>

Hi all,

For those of you that haven't been following the thread on -hackers:
http://archives.postgresql.org/pgsql-hackers/2011-12/msg00627.php.

Basically in order to remove floating point precision errors on x86
platforms, we need to compile with -fexcess-precision=standard. This
would probably be a good idea for GEOS too.

ATB,

Mark.

--
Mark Cave-Ayland - Senior Technical Architect
PostgreSQL - PostGIS
Sirius Corporation plc - control through freedom
http://www.siriusit.co.uk
t: [phone]
Sirius Labs: http://www.siriusit.co.uk/labs
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Mateusz Loskot, http://mateusz.loskot.net
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