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dereferencing type-punned pointer will break strict-aliasing rules

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dereferencing type-punned pointer will break strict-aliasing rules

Subject: dereferencing type-punned pointer will break strict-aliasing rules
From: Ulf Dunkel <email@hidden>
Date: Wed, 17 May 2006 16:40:46 +0200
Organization: invers Software

I create UB "deployment" builds of a project and get masses of warnings "dereferencing type-punned pointer will break strict-aliasing rules" then.

When I build "development native" on a PowerPC Mac, no such warning is shown.

Googling around I found that GCC sets a flag -fstrict-aliasing when -O2 is set. This seems to lead to these warnings when building for Intel Macs.

How do I tell GCC in XCode that it should use -fno-strict-aliasing?

--
Bis bald / See you soon / A bientôt / Tot ziens / Ghis revido

invers Software Vertrieb  - Inh. Ulf Dunkel
mailto:email@hidden - http://www.calamus.net

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