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[Ada] Change SIGADAABRT to SIGABRT on Darwin

From: Arnaud Charlet <charlet at adacore dot com>
To: gcc-patches at gcc dot gnu dot org
Cc: Thomas Quinot <quinot at adacore dot com>
Date: Mon, 19 Sep 2011 05:04:02 -0400
Subject: [Ada] Change SIGADAABRT to SIGABRT on Darwin

The GNAT tasking runtimes using a signal (SIGADAABRT) for asynchronous
task abortion. On most platforms, SIGADAABRT is SIGABRT, but Darwin used
to use SIGTERM for that purpose. This change makes Darwin consistent with
the majority of platforms. This allows tasking programs to install their
own handler for SIGTERM (^C).

Tested on x86_64-pc-linux-gnu, committed on trunk

2011-09-19  Thomas Quinot  <quinot@adacore.com>

	* s-osinte-darwin.ads: Change SIGADAABRT on Darwin to SIGABRT.

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