33 lines
990 B
Diff
33 lines
990 B
Diff
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From 7384f79f69fdb7b691cc5b0c28c301b3fe8b633e Mon Sep 17 00:00:00 2001
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From: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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Date: Thu, 26 May 2016 10:46:57 +0200
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Subject: [PATCH] xf86atomic: require CAS support in libatomic_ops
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Since AO_compare_and_swap_full() is used by libdrm, AO_REQUIRE_CAS
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must be defined before including <atomic_ops.h> so that we are sure
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that CAS support will be provided. This is necessary to make sure that
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the AO_compare_and_swap_full() function will be provided on all
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architectures, including the ones that don't have built-in CAS support
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such as SPARCv8.
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Signed-off-by: Thomas Petazzoni <thomas.petazzoni@free-electrons.com>
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---
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xf86atomic.h | 1 +
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1 file changed, 1 insertion(+)
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diff --git a/xf86atomic.h b/xf86atomic.h
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index 922b37d..d7017a5 100644
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--- a/xf86atomic.h
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+++ b/xf86atomic.h
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@@ -58,6 +58,7 @@ typedef struct {
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#endif
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#if HAVE_LIB_ATOMIC_OPS
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+#define AO_REQUIRE_CAS
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#include <atomic_ops.h>
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#define HAS_ATOMIC_OPS 1
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--
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2.7.4
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