Fix: only define membarrier system call on Linux

[urcu.git] / urcu / arch / ia64.h

diff --git a/urcu/arch/ia64.h b/urcu/arch/ia64.h
index 12834f36f1f7cbf673f2d52b47ef1cbb6c3a4806..bca007cf0301f0fc0d01ef5adb7635be433fa7aa 100644 (file)
--- a/urcu/arch/ia64.h
+++ b/urcu/arch/ia64.h
@@ -34,10 +34,10 @@ extern "C" {
 #include <sys/time.h>
 
 /*
- * 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.
  */
-#ifndef __NR_membarrier
+#if (defined(__linux__) && !defined(__NR_membarrier))
 #define __NR_membarrier                1344
 #endif