Rather than dealing with autoconf (which can't do cross-compile tests

anyway), throw OV_EIMPL on architectures where right shift of a signed
int is not arithmetic.

Monty


git-svn-id: https://svn.xiph.org/branches/lowmem-branch/Tremor@4598 0101bb08-14d6-0310-b084-bc0e0c8e3800

3 files changed, 9 insertions, 4 deletions

diff --git a/misc.h b/misc.h
index 715894e..32ecc0a 100644
--- a/misc.h
+++ b/misc.h
@@ -20,7 +20,7 @@
 #include "ivorbiscodec.h"
 #include "os_types.h"
 
-#define _VDBG_GRAPHFILE "_0.m"
+//#define _VDBG_GRAPHFILE "_0.m"
 
 
 #ifdef _VDBG_GRAPHFILE
diff --git a/synthesis.c b/synthesis.c
index 3006eee..5b04cb5 100644
--- a/synthesis.c
+++ b/synthesis.c
@@ -12,7 +12,7 @@
  ********************************************************************
 
  function: single-block PCM synthesis
- last mod: $Id: synthesis.c,v 1.4 2003/03/29 03:07:21 xiphmont Exp $
+ last mod: $Id: synthesis.c,v 1.4.2.1 2003/04/09 09:43:49 xiphmont Exp $
 
  ********************************************************************/
 
@@ -78,7 +78,7 @@ int vorbis_synthesis(vorbis_block *vb,ogg_packet *op,int decodep){
     vb->pcmend=0;
     vb->pcm=NULL;
     
-    return(0);
+    return 0;
   }
 }
 
diff --git a/vorbisfile.c b/vorbisfile.c
index 41239d3..76afad5 100644
--- a/vorbisfile.c
+++ b/vorbisfile.c
@@ -12,7 +12,7 @@
  ********************************************************************
 
  function: stdio-based convenience library for opening/seeking/decoding
- last mod: $Id: vorbisfile.c,v 1.6 2003/03/30 23:40:56 xiphmont Exp $
+ last mod: $Id: vorbisfile.c,v 1.6.2.1 2003/04/09 09:43:49 xiphmont Exp $
 
  ********************************************************************/
 
@@ -668,6 +668,11 @@ static int _ov_open1(void *f,OggVorbis_File *vf,char *initial,
   int ret;
 
   memset(vf,0,sizeof(*vf));
+
+  /* Tremor assumes in multiple places that right shift of a signed
+     integer is an arithmetic shift */
+  if( (-1>>1) != -1) return OV_EIMPL;
+
   vf->datasource=f;
   vf->callbacks = callbacks;