Vorbis dev - Mar 2001 - patches for building vorbis-tools on irix with sgi cc

hi -

I was just trying to build vorbis-tools-1.0beta4 on an irix 6.5 system
using the native C compiler (version 7.21, i think).

I had to make a few changes to the sources to get the package
to compile.  There were a couple files that used alloca() but didn't
include alloca.h.  There was another source that used index().
On irix, you need to include strings.h to get that declared.
However, i think a better fix is just to replace it by strchr().



*** ogg123/ogg123.c-orig	Sun Mar 11 19:59:49 2001
--- ogg123/ogg123.c	Sun Mar 11 20:00:02 2001
***************
*** 29,34 ****
--- 29,35 ----
  #include <errno.h>
  #include <time.h>
  #include <getopt.h>
+ #include <alloca.h>
  
  #include "ogg123.h"
  
*** oggenc/audio.c-orig	Sun Mar 11 19:59:05 2001
--- oggenc/audio.c	Sun Mar 11 19:59:14 2001
***************
*** 14,19 ****
--- 14,20 ----
  #include <string.h>
  #include <sys/types.h>
  #include <math.h>
+ #include <alloca.h>
  #include "audio.h"
  #include "platform.h"
  
*** vorbiscomment/vcomment.c-orig	Sun Mar 11 20:15:04 2001
--- vorbiscomment/vcomment.c	Sun Mar 11 20:15:09 2001
***************
*** 193,199 ****
           * as the comment spec requires. For the moment, we
           * also restrict ourselves to 0-terminated values */
  
! 	mark = index(line, '=');
          if (mark == NULL) return -1;
  
          value = line;
--- 193,199 ----
           * as the comment spec requires. For the moment, we
           * also restrict ourselves to 0-terminated values */
  
! 	mark = strchr(line, '=');
          if (mark == NULL) return -1;
  
          value = line;

--- >8 ----
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