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[Ada] Spurious recompilation due to System.Task_Primitives.Operations

From: Arnaud Charlet <charlet at adacore dot com>
To: gcc-patches at gcc dot gnu dot org
Cc: Vincent Celier <celier at adacore dot com>
Date: Tue, 27 Oct 2009 14:17:05 +0100
Subject: [Ada] Spurious recompilation due to System.Task_Primitives.Operations

When a unit imports System.Task_Primitives.Operations, this unit was
recompiled each time the builder was invoked. This patch ensures
that the recompilation occurs only when the unit is not up to date.

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

2009-10-27  Vincent Celier  <celier@adacore.com>

	* makeutl.adb (Check_Source_Info_In_ALI): Do not recompile if a subunit
	from the runtime is found, except if gnatmake switch -a is used and this
	subunit cannot be found.

Attachment: difs
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