Added an ifdef for compilation in win32.

svn path=/trunk/vorbis/; revision=351

1 files changed, 13 insertions, 2 deletions

diff --git a/lib/os.h b/lib/os.h
index 6ec52185..a7e00414 100644
--- a/lib/os.h
+++ b/lib/os.h
@@ -1,3 +1,5 @@
+#ifndef _OS_H
+#define _OS_H
 /********************************************************************
  *                                                                  *
  * THIS FILE IS PART OF THE Ogg Vorbis SOFTWARE CODEC SOURCE CODE.  *
@@ -12,7 +14,7 @@
  ********************************************************************
 
  function: #ifdef jail to whip a few platforms into the UNIX ideal.
- last mod: $Id: os.h,v 1.2 1999/12/30 07:26:46 xiphmont Exp $
+ last mod: $Id: os.h,v 1.3 2000/05/01 05:46:47 jon Exp $
 
  ********************************************************************/
 
@@ -30,10 +32,19 @@
 
 #ifndef alloca
 #ifdef _WIN32
-#define alloca(x) (_alloca(x))
+#  define alloca(x) (_alloca(x))
 #endif
 #endif
 
+#ifdef _WIN32
+typedef __int64 int64_t;
+typedef unsigned int u_int32_t;
+#  define FAST_HYPOT(a, b) sqrt((a)*(a) + (b)*(b))
+#else // if not _WIN32
+#  define FAST_HYPOT hypot
+#endif
+
 #endif
 
+#endif // _OS_H