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Fix: only define membarrier system call on Linux
[urcu.git]
/
urcu
/
arch
/
x86.h
diff --git
a/urcu/arch/x86.h
b/urcu/arch/x86.h
index b4d3694fdffb896fa3773f30ad8d0777ae9836a4..aac8ca1384b63f4ce321680cffbcaca661a0f16c 100644
(file)
--- a/
urcu/arch/x86.h
+++ b/
urcu/arch/x86.h
@@
-91,15
+91,13
@@
static inline caa_cycles_t caa_get_cycles(void)
}
/*
}
/*
- *
Define the membarrier system call number if not yet available in the
- * system headers.
+ *
On Linux, define the membarrier system call number if not yet available in
+ *
the
system headers.
*/
*/
+#if (defined(__linux__) && !defined(__NR_membarrier))
#if (CAA_BITS_PER_LONG == 32)
#if (CAA_BITS_PER_LONG == 32)
-#ifndef __NR_membarrier
#define __NR_membarrier 375
#define __NR_membarrier 375
-#endif
#else
#else
-#ifndef __NR_membarrier
#define __NR_membarrier 324
#endif
#endif
#define __NR_membarrier 324
#endif
#endif
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