AMD kernel module generator version 2.1 . Active kernel: uname -a = Linux brodock-desktop 3.16.0-28-generic #38-Ubuntu SMP Fri Dec 12 17:37:40 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux uname -s = Linux uname -m = x86_64 uname -r = 3.16.0-28-generic uname -v = #38-Ubuntu SMP Fri Dec 12 17:37:40 UTC 2014 . Target kernel: uname -a = Linux brodock-desktop 3.16.0-28-generic #38-Ubuntu SMP Fri Dec 12 17:37:40 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux uname -s = Linux uname -m = x86_64 uname -r = 3.16.0-28-generic uname -v = #38-Ubuntu SMP Fri Dec 12 17:37:40 UTC 2014 . OsVersion says: SMP=1 file /proc/kallsyms says: SMP=1 file /lib/modules/3.16.0-28-generic/build/include/generated/autoconf.h says: SMP=1 file /lib/modules/3.16.0-28-generic/build/include/generated/autoconf.h says: MODVERSIONS=1 file /lib/modules/3.16.0-28-generic/build/arch/x86/include/asm/compat.h says: COMPAT_ALLOC_USER_SPACE=arch_compat_alloc_user_space . doing Makefile based build for kernel 2.6.x and higher make -C /lib/modules/3.16.0-28-generic/build SUBDIRS=/var/lib/dkms/fglrx/14.200/build/2.6.x modules make[1]: Entering directory '/usr/src/linux-headers-3.16.0-28-generic' CC [M] /var/lib/dkms/fglrx/14.200/build/2.6.x/firegl_public.o /var/lib/dkms/fglrx/14.200/build/2.6.x/firegl_public.c: In function ‘KCL_GetEffectiveUid’: /var/lib/dkms/fglrx/14.200/build/2.6.x/firegl_public.c:1787:5: error: incompatible types when returning type ‘kuid_t’ but ‘KCL_TYPE_Uid’ was expected return current_euid(); ^ /var/lib/dkms/fglrx/14.200/build/2.6.x/firegl_public.c:1793:1: warning: control reaches end of non-void function [-Wreturn-type] } ^ scripts/Makefile.build:257: recipe for target '/var/lib/dkms/fglrx/14.200/build/2.6.x/firegl_public.o' failed make[2]: *** [/var/lib/dkms/fglrx/14.200/build/2.6.x/firegl_public.o] Error 1 Makefile:1345: recipe for target '_module_/var/lib/dkms/fglrx/14.200/build/2.6.x' failed make[1]: *** [_module_/var/lib/dkms/fglrx/14.200/build/2.6.x] Error 2 make[1]: Leaving directory '/usr/src/linux-headers-3.16.0-28-generic' Makefile:88: recipe for target 'kmod_build' failed make: *** [kmod_build] Error 2 build failed with return value 2