X-Git-Url: http://git.liburcu.org/?p=urcu.git;a=blobdiff_plain;f=urcu%2Farch%2Farm.h;h=5cbca7d7f1d0d523186b40837ce93ff515615128;hp=9483bab0e23761a8f6e853dfbe9258b73adb8256;hb=a59f39055b5ecb77b68cf78b9839aa9e8e4ec332;hpb=f8c43f458c80566d298d539ec518a8be8c7cc861

diff --git a/urcu/arch/arm.h b/urcu/arch/arm.h
index 9483bab..5cbca7d 100644
--- a/urcu/arch/arm.h
+++ b/urcu/arch/arm.h
@@ -28,7 +28,7 @@
 
 #ifdef __cplusplus
 extern "C" {
-#endif 
+#endif
 
 #ifdef CONFIG_RCU_ARM_HAVE_DMB
 #define cmm_mb()	__asm__ __volatile__ ("dmb":::"memory")
@@ -40,14 +40,14 @@ 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		389
 #endif
 
-#ifdef __cplusplus 
+#ifdef __cplusplus
 }
 #endif