AMD kernel module generator version 2.1 . Active kernel: uname -a = Linux vfast 3.16.0-50-generic #67~14.04.1-Ubuntu SMP Fri Oct 2 22:07:51 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux uname -s = Linux uname -m = x86_64 uname -r = 3.16.0-50-generic uname -v = #67~14.04.1-Ubuntu SMP Fri Oct 2 22:07:51 UTC 2015 . Target kernel: uname -a = Linux vfast 3.16.0-50-generic #67~14.04.1-Ubuntu SMP Fri Oct 2 22:07:51 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux uname -s = Linux uname -m = x86_64 uname -r = 3.16.0-51-generic uname -v = #67~14.04.1-Ubuntu SMP Fri Oct 2 22:07:51 UTC 2015 . OsVersion says: SMP=1 file /proc/kallsyms says: SMP=1 file /lib/modules/3.16.0-51-generic/build/include/generated/autoconf.h says: SMP=1 file /lib/modules/3.16.0-51-generic/build/include/generated/autoconf.h says: MODVERSIONS=1 file /lib/modules/3.16.0-51-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/3.16.0-51-generic/build SUBDIRS=/var/lib/dkms/fglrx-core/15.200/build/2.6.x modules make[1]: Entering directory `/usr/src/linux-headers-3.16.0-51-generic' CC [M] /var/lib/dkms/fglrx-core/15.200/build/2.6.x/firegl_public.o /var/lib/dkms/fglrx-core/15.200/build/2.6.x/firegl_public.c:6446:12: warning: ‘KCL_fpu_save_init’ defined but not used [-Wunused-function] static int KCL_fpu_save_init(struct task_struct *tsk) ^ CC [M] /var/lib/dkms/fglrx-core/15.200/build/2.6.x/kcl_acpi.o CC [M] /var/lib/dkms/fglrx-core/15.200/build/2.6.x/kcl_agp.o CC [M] /var/lib/dkms/fglrx-core/15.200/build/2.6.x/kcl_debug.o CC [M] /var/lib/dkms/fglrx-core/15.200/build/2.6.x/kcl_ioctl.o CC [M] /var/lib/dkms/fglrx-core/15.200/build/2.6.x/kcl_io.o CC [M] /var/lib/dkms/fglrx-core/15.200/build/2.6.x/kcl_pci.o CC [M] /var/lib/dkms/fglrx-core/15.200/build/2.6.x/kcl_str.o CC [M] /var/lib/dkms/fglrx-core/15.200/build/2.6.x/kcl_iommu.o CC [M] /var/lib/dkms/fglrx-core/15.200/build/2.6.x/kcl.o CC [M] /var/lib/dkms/fglrx-core/15.200/build/2.6.x/kcl_wait.o LD [M] /var/lib/dkms/fglrx-core/15.200/build/2.6.x/fglrx.o ld: Relocatable linking with relocations from format elf32-i386 (/var/lib/dkms/fglrx-core/15.200/build/2.6.x/libfglrx_ip.a) to format elf64-x86-64 (/var/lib/dkms/fglrx-core/15.200/build/2.6.x/fglrx.o) is not supported make[2]: *** [/var/lib/dkms/fglrx-core/15.200/build/2.6.x/fglrx.o] Error 1 make[1]: *** [_module_/var/lib/dkms/fglrx-core/15.200/build/2.6.x] Error 2 make[1]: Leaving directory `/usr/src/linux-headers-3.16.0-51-generic' make: *** [kmod_build] Error 2 build failed with return value 2