* defines.h (flush_register_windows): use volatile only for gcc on

  Solaris.  [ruby-dev:21403]

* lib/mkmf.rb (xsystem): use system directly to honor shell meta
  charaters.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@4600 b2dd03c8-39d4-4d8f-98ff-823fe69b080e

1 files changed, 9 insertions, 4 deletions

diff --git a/defines.h b/defines.h
index 6fd17808ae..2744b1650f 100644
--- a/defines.h
+++ b/defines.h
@@ -139,13 +139,18 @@ void xfree _((void*));
 static inline void
 flush_register_windows(void)
 {
-# if defined(__sparc_v9__) || defined(__arch64__)
-    asm volatile ("flushw" : :);
+    asm
+#ifdef __GNUC__
+	volatile
+#endif
+# if defined(__sparc_v9__) || defined(__sparcv9) || defined(__arch64__)
+	("flushw" : :)
 # elif defined(linux) || defined(__linux__)
-    asm volatile ("ta  0x83");
+	("ta  0x83")
 # else /* Solaris, OpenBSD, NetBSD, etc. */
-    asm volatile ("ta  0x03");
+	("ta  0x03")
 # endif /* trap always to flush register windows if we are on a Sparc system */
+	;
 }
 #  define FLUSH_REGISTER_WINDOWS flush_register_windows()
 #else