From 920f59a755ce142b068f21b9db07f76f35449f16 Mon Sep 17 00:00:00 2001
From: Chris Wilson <chris@chris-wilson.co.uk>
Date: Tue, 4 Aug 2009 20:13:43 +0100
Subject: [build] Configure switch to disable atomics

Workaround for my arm toolchain which succeeds in linking the configure
program, only to complain when linking a program (such as cairo-perf)
against libcairo.so. Annoying.
---
 build/configure.ac.system | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

(limited to 'build')

diff --git a/build/configure.ac.system b/build/configure.ac.system
index c75460d7..46b7f437 100644
--- a/build/configure.ac.system
+++ b/build/configure.ac.system
@@ -8,8 +8,14 @@ dnl ====================================================================
 
 AM_CONDITIONAL(CROSS_COMPILING, test "x$cross_compiling" = "xyes")
 CAIRO_BIGENDIAN
-CAIRO_CHECK_NATIVE_ATOMIC_PRIMITIVES
-CAIRO_CHECK_ATOMIC_OP_NEEDS_MEMORY_BARRIER
+AC_ARG_ENABLE(atomic,
+	      [AS_HELP_STRING([--disable-atomic],
+			      [disable use of native atomic operations])],
+	      [use_atomic=$enableval], [use_atomic=yes])
+AS_IF([test "x$use_atomic" = "xyes"], [
+  CAIRO_CHECK_NATIVE_ATOMIC_PRIMITIVES
+  CAIRO_CHECK_ATOMIC_OP_NEEDS_MEMORY_BARRIER
+])
 AC_CHECK_SIZEOF(void *)
 AC_CHECK_SIZEOF(int)
 AC_CHECK_SIZEOF(long)
-- 
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