DKMS make.log for fglrx-8.970 for kernel 3.5.0-44-generic (x86_64) Mon Dec 30 18:01:12 GMT 2013 AMD kernel module generator version 2.1 doing Makefile based build for kernel 2.6.x and higher rm -rf *.c *.h *.o *.ko *.a .??* *.symvers make -C /lib/modules/3.5.0-44-generic/build SUBDIRS=/var/lib/dkms/fglrx/8.970/build/2.6.x modules make[1]: Entering directory `/usr/src/linux-headers-3.5.0-44-generic' CC [M] /var/lib/dkms/fglrx/8.970/build/2.6.x/firegl_public.o /var/lib/dkms/fglrx/8.970/build/2.6.x/firegl_public.c: In function ‘KCL_MEM_AllocLinearAddrInterval’: /var/lib/dkms/fglrx/8.970/build/2.6.x/firegl_public.c:2152:5: error: implicit declaration of function ‘do_mmap’ [-Werror=implicit-function-declaration] /var/lib/dkms/fglrx/8.970/build/2.6.x/firegl_public.c:2152:13: warning: cast to pointer from integer of different size [-Wint-to-pointer-cast] cc1: some warnings being treated as errors make[2]: *** [/var/lib/dkms/fglrx/8.970/build/2.6.x/firegl_public.o] Error 1 make[1]: *** [_module_/var/lib/dkms/fglrx/8.970/build/2.6.x] Error 2 make[1]: Leaving directory `/usr/src/linux-headers-3.5.0-44-generic' make: *** [kmod_build] Error 2 build failed with return value 2