X-Git-Url: https://git.lttng.org/?p=urcu.git;a=blobdiff_plain;f=urcu%2Farch%2Fs390.h;h=67461b4d6ed1c3f6ac258b0e636a6939fd942871;hp=e71f99ec483d447e9bcdb7fa2ac1dd8ef82d5b69;hb=84f4ccb4bcf32c0336a0c7a3a4ba76d90d6dea1b;hpb=ad46005890368f9c306f0c510b3d4b08c47b66f8

diff --git a/urcu/arch/s390.h b/urcu/arch/s390.h
index e71f99e..67461b4 100644
--- a/urcu/arch/s390.h
+++ b/urcu/arch/s390.h
@@ -55,10 +55,10 @@ 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.
  */
-#ifndef __NR_membarrier
+#if (defined(__linux__) && !defined(__NR_membarrier))
 #define __NR_membarrier		356
 #endif