On Sat, 2011-04-30 at 10:31 -0400, Colin Minihan wrote: > On Ubuntu 10.04 attempting to run > > git clone git://linuxtv.org/media_build.git > cd media_build > ./check_needs.pl > make -C linux/ download > make -C linux/ untar > make stagingconfig > make > > results in the following failure > ... > CC [M] /home/colm/media_build/v4l/lirc_zilog.o > /home/colm/media_build/v4l/lirc_zilog.c: In function 'destroy_rx_kthread': > /home/colm/media_build/v4l/lirc_zilog.c:238: error: implicit > declaration of function 'IS_ERR_OR_NULL' Well, IS_ERR_OR_NULL() went into the kernel in December 2009: http://git.kernel.org/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commitdiff;h=603c4ba96be998a8dd7a6f9b23681c49acdf4b64 so it should be in kernel version 2.6.33 and later. If you don't want to generate a patch for the media_build backward compatability build system, you can probably just patch your kernel header file or trivially hack the function it into drivers/staging/lirc/lirc_zilog.c to get past your current build error. But I suspect you'll run into more errors. When I make changes to a module (like lirc_zilog.c), I tend to use the latest kernel interfaces at the time of the changes. If you don't need lirc_zilog.ko built, then configure the build system to not build the module. Regards, Andy > make[3]: *** [/home/colm/media_build/v4l/lirc_zilog.o] Error 1 > make[2]: *** [_module_/home/colm/media_build/v4l] Error 2 > make[2]: Leaving directory `/usr/src/linux-headers-2.6.32-31-generic' > make[1]: *** [default] Error 2 > make[1]: Leaving directory `/home/colm/media_build/v4l' > make: *** [all] Error 2 > -- -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html