RE: [SLE] Little_endian.h errors

14 Jun 2005

      Just for the archives:

I guess the if/endif wasn't matching the case right, so I did the
following and it compiles:

#include <linux/version.h>
#include <asm/types.h>    
#define __le64 __u64    
#define __le32 __u32    
#define __le16 __u16
#define __be64 __u64    
#define __be32 __u32
#define __be16 __u16    
#include <linux/cdrom.h>

-Khanh
...
-----Original Message-----
From: Khanh Tran 
Sent: Tuesday, June 14, 2005 6:31 PM
To: Joe Morris (NTM); suse-linux-e@suse.com
Subject: RE: [SLE] Little_endian.h errors
I looked at your post, and got this reply on the mythtv list, 
but still
won't work.
...
...
You can try the following workaround in all the source files that
#include <linux/cdrom.h>:
#ifdef HAVE_LINUX_CDROM_H
      /* linux 2.6.9 workaround */
  #  include <linux/version.h>
  #  if LINUX_VERSION_CODE == KERNEL_VERSION(2,6,9)
  #    include <asm/types.h>
  #    define __le64 __u64
  #    define __le32 __u32
  #    define __le16 __u16
  #    define __be64 __u64
  #    define __be32 __u32
  #    define __be16 __u16
  #  endif /* linux 2.6.9 workaround */
  #  include <linux/cdrom.h>
  #endif
-=Khanh=-
...
-----Original Message-----
From: Joe Morris (NTM) [mailto:Joe_Morris@ntm.org] 
Sent: Tuesday, June 14, 2005 6:02 PM
To: suse-linux-e@suse.com
Subject: Re: [SLE] Little_endian.h errors
Khanh Tran wrote:
...
I've been trying to compile MythTV 0.18.1 on SuSE 9.2, 
Are you sure that is 9.2 and not 9.3?
however I keep
getting the following errors.  Anyone know what to do?
mythcdrom-linux.cpp
In file included from /usr/include/asm/byteorder.h:59,
                from /usr/include/linux/cdrom.h:14,
                from mythcdrom-linux.cpp:3:
/usr/include/linux/byteorder/little_endian.h:43: error: 
syntax error
before `(' token
/usr/include/linux/byteorder/little_endian.h:47: error: 
syntax error
before `*' token
/usr/include/linux/byteorder/little_endian.h: In function `__u64
__le64_to_cpup(...)':
/usr/include/linux/byteorder/little_endian.h:49: error: `p' 
undeclared
(first use this function)
This looks a lot like the bug I was working to figure out to 
get kscd to 
get compiled in 9.3 with cdda support.  The kscd author told 
me it was a 
glibc bug.  Assuming it is 9.3, the problem is [Disclaimer:  
I am not a 
programmer, and my code reading and terminology is therefore highly 
suspect] there is a reference to cdrom.h in 
mythcdrom-linux.cpp, which 
references byteorder, which references little_endian.h, which 
is defined 
in types.h as
#if defined(__GNUC__) && !defined(__STRICT_ANSI__)
*typedef* __u64 __bitwise __le64;
*typedef* __u64 __bitwise __be64;
#endif
If cdrom.h is defined with __STRICT_ANSI__, it breaks the 
definition and 
causes the little_endian error.  I unfortunately don't know 
which has a 
bug, what it is or should be.  You could search the archives 
and take a 
look at the patch I used to get this to work with kscd.  
Maybe it will 
give you an idea of a fix? /workaround?
-- 
Joe Morris
New Tribes Mission
Email Address: Joe_Morris@ntm.org
Registered Linux user 231871
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Khanh Tran

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