https://bugs.gentoo.org/296739
http://lirc.cvs.sourceforge.net/viewvc/lirc/lirc/drivers/lirc_i2c/lirc_i2c.c?r1=1.70&r2=1.71

--- drivers/lirc_i2c/lirc_i2c.c
+++ drivers/lirc_i2c/lirc_i2c.c
@@ -399,8 +399,8 @@
 		.name	= "i2c ir driver",
 	},
 #endif
-	.id		= I2C_DRIVERID_EXP3, /* FIXME */
 #if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 31)
+	.id		= I2C_DRIVERID_EXP3, /* FIXME */
 	.attach_adapter	= ir_probe,
 	.detach_client	= ir_remove,
 #else