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[Ada] Do not enable atomic primitives on Power/Darwin 32-bit

Message ID 3146457.IS6Gcgkf51@polaris
State New
Headers show

Commit Message

Eric Botcazou Dec. 5, 2016, 11:15 a.m. UTC 
Iain Sandoe privately reported that the overhaul of the system files had 
broken the Ada compiler on Power/Darwin 32-bit.  Applied on the mainline.


2016-12-05  Eric Botcazou  <ebotcazou@adacore.com>

	* system-darwin-ppc.ads (Support_Atomic_Primitives): Set to True only
	if the word size is 64.
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Patch

Index: system-darwin-ppc.ads
===================================================================
--- system-darwin-ppc.ads	(revision 243172)
+++ system-darwin-ppc.ads	(working copy)
@@ -161,7 +161,7 @@  private
    Stack_Check_Probes        : constant Boolean := False;
    Stack_Check_Limits        : constant Boolean := False;
    Support_Aggregates        : constant Boolean := True;
-   Support_Atomic_Primitives : constant Boolean := True;
+   Support_Atomic_Primitives : constant Boolean := Word_Size = 64;
    Support_Composite_Assign  : constant Boolean := True;
    Support_Composite_Compare : constant Boolean := True;
    Support_Long_Shifts       : constant Boolean := True;