Bug 6862 - included /usr/include/linux/input.h doesn't compile (since at least linux-2.6.16.11)
Summary: included /usr/include/linux/input.h doesn't compile (since at least linux-2.6...
Status: RESOLVED NOTOURBUG
Alias: None
Product: xorg
Classification: Unclassified
Component: Server/General (show other bugs)
Version: 7.0 (2005.12)
Hardware: x86 (IA32) Linux (All)
: high normal
Assignee: Xorg Project Team
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Reported: 2006-05-09 04:34 UTC by Alexander Schmid
Modified: 2006-05-09 02:24 UTC (History)
0 users

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Description Alexander Schmid 2006-05-09 04:34:43 UTC 
linux/input.h is included (at least) from
xorg-server-X11R7.0-1.0.1/hw/dmx/examples/ev.c, 
xorg-server-X11R7.0-1.0.1/hw/dmx/input                                         
                                                           /usb-private.h      
                                                                               
   , xf86-input-aiptek-X11R7.0-1.0.0.5/src/xf86Aiptek.h.

With linux-2.4.31, everything compiles cleanly (gcc version 3.3.6). With
linux-2.6.11-14 the following error occurs:
---------------
/usr/include/linux/input.h:801: error: syntax error before "kernel_ulong_t"    
                                                                               
                      
/usr/include/linux/input.h:805: error: syntax error before "evbit"             
                                                                               
                      
/usr/include/linux/input.h:805: error: `BITS_PER_LONG' undeclared here (not in a
function)                                                                      
                     
/usr/include/linux/input.h:806: error: syntax error before "keybit"            
          
(...)
---------------

http://lists.altlinux.org/pipermail/sisyphus/2006-April/080482.html suggests
that this is because of using BITS_PER_LONG outside kernel space.
Their patch to linux/input.h solved the problem for me.

Is this a kernel bug or a changed interface problem or what?
Comment 1 Daniel Stone 2006-05-09 19:24:09 UTC 
it's a kernel problem (or, more specifically, a problem with whatever provides
/usr/include/linux for you).  you probably want to report it to your
distribution.  cheers.

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