# HG changeset patch
# User Igor Sysoev <igor@sysoev.ru>
# Date 1178344241 0
# Node ID ec909315dfb010bd387585ab881165c735bed881
# Parent  942e241c3b88cfcdd4a10054a2aa14556903a566
fix building by owc12

diff --git a/src/os/win32/ngx_atomic.h b/src/os/win32/ngx_atomic.h
--- a/src/os/win32/ngx_atomic.h
+++ b/src/os/win32/ngx_atomic.h
@@ -45,7 +45,13 @@ typedef volatile ngx_atomic_uint_t  ngx_
 #define ngx_memory_barrier()
 
 
-#ifdef __BORLANDC__
+#if defined( __BORLANDC__ ) || ( __WATCOMC__ < 1230 )
+
+/*
+ * Borland C++ 5.5 (tasm32) and Open Watcom C prior to 1.3
+ * do not understand the "pause" instruction
+ */
+
 #define ngx_cpu_pause()
 #else
 #define ngx_cpu_pause()       __asm { pause }