Cannot compile lirc_i2c module with kernel 2.6.14

[Daniel S. <dan...@gm...>]

I am running a Gentoo linux kernel 2.6.14-r5 and I am unable to compile the
lirc_i2c module from the lirc-0.7.2 package. I downloaded the source from
the LIRC site. I am configuring with hauppauge card and I am getting the
following error:

  gcc -m32 -Wp,-MD,/home/dsavard/temp/lirc-0.7.2/drivers/lirc_i2c/.lirc_i2c=
.o.d
-nostdinc -isystem /usr/lib/gcc-lib/i686-pc-linux-gnu/3.3.6/include
-D__KERNEL__ -Iinclude  -Wall -Wundef -Wstrict-prototypes -Wno-trigraphs
-fno-strict-aliasing -fno-common -ffreestanding -O2     -fomit-frame-pointe=
r
-pipe -msoft-float -mpreferred-stack-boundary=3D2  -march=3Di686
-Iinclude/asm-i386/mach-default   -DIRCTL_DEV_MAJOR=3D61 -DEXPORT_SYMTAB
-DHAVE_CONFIG_H -I. -I. -I../.. -I
/home/dsavard/temp/lirc-0.7.2/drivers/lirc_i2c/../..
-I /lib/modules/2.6.14-gentoo-r5/build//include/  -DMODULE
-DKBUILD_BASENAME=3Dlirc_i2c -DKBUILD_MODNAME=3Dlirc_i2c -c -o
/home/dsavard/temp/lirc-0.7.2/drivers/lirc_i2c/lirc_i2c.o
/home/dsavard/temp/lirc-0.7.2/drivers/lirc_i2c/lirc_i2c.c
In file included from include/linux/rcuref.h:36,
                 from include/linux/fs.h:12,
                 from /home/dsavard/temp/lirc-0.7.2
/drivers/lirc_dev/lirc_dev.h:24,
                 from /home/dsavard/temp/lirc-0.7.2
/drivers/lirc_i2c/lirc_i2c.c:58:
include/linux/interrupt.h:30: error: conflicting types for `irqreturn_t'
/home/dsavard/temp/lirc-0.7.2/drivers/kcompat.h:166: error: previous
declaration of `irqreturn_t'

Kernel 2.6.14-r5 defines irqreturn_t as an integer while the kcompat.h from
the package defines it as void.

And, of course, IRQ_NONE, IRQ_HANDLED and IRQ_RETVAL are not appropriately
defined as well.

So, what should be done to fix it?

--
-----------------
Daniel Savard