dinput force feedback header detection

[Jesse Allen]

Hi I got this compile error from current cvs:

make[2]: Entering directory `/home/jesse/.local/build/wine/dlls/dinput'
gcc -c -I. -I. -I../../include -I../../include  -D__WINESRC__  
-D_REENTRANT -fPIC -Wall -pipe -mpreferred-stack-boundary=2
-fno-strict-aliasing -gstabs+ -Wpointer-arith  -g -O2  -o
joystick_linuxinput.o joystick_linuxinput.c
joystick_linuxinput.c: In function `alloc_device':
joystick_linuxinput.c:305: error: `FF_STATUS_STOPPED' undeclared
(first use in this function)
joystick_linuxinput.c:305: error: (Each undeclared identifier is
reported only once
joystick_linuxinput.c:305: error: for each function it appears in.)
joystick_linuxinput.c: In function `joy_polldev':
joystick_linuxinput.c:726: error: `EV_FF_STATUS' undeclared (first use
in this function)
joystick_linuxinput.c: In function `JoystickAImpl_EnumEffects':
joystick_linuxinput.c:1182: warning: unused variable `dei'
joystick_linuxinput.c: In function `JoystickWImpl_EnumEffects':
joystick_linuxinput.c:1266: warning: unused variable `dei'
make[2]: *** [joystick_linuxinput.o] Error 1
make[2]: Leaving directory `/home/jesse/.local/build/wine/dlls/dinput'
make[1]: *** [dinput] Error 2
make[1]: Leaving directory `/home/jesse/.local/build/wine/dlls'
make: *** [dlls] Error 2

Apparently the linux/input.h version 2.4.31 does not have support for
force feedback.  I've installed headers for 2.6.12.5 and now have it
compiled.  So something might need to be done to improve detection,
else others still running 2.4 will get this error.

Jesse