[Message] Kernel Module : Trying to install a precompiled kernel module.
[Message] Kernel Module : Precompiled kernel module version mismatched.
[Message] Kernel Module : Found kernel module build environment, generating kernel module now.
ATI module generator V 2.0
==========================
initializing...
cleaning...
patching 'highmem.h'...
assuming new VMA API since we do have kernel 2.6.x...
 Assuming default VMAP API
 Assuming default munmap API
doing Makefile based build for kernel 2.6.x and higher
make -C /lib/modules/2.6.20.1/build SUBDIRS=/lib/modules/fglrx/build_mod/2.6.x modules
make[1]: Entering directory `/usr/src/linux-2.6.20.1'
  CC [M]  /lib/modules/fglrx/build_mod/2.6.x/firegl_public.o
/lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:204: error: syntax error before "mlock"
/lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:206: error: syntax error before "munlock"
/lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:211: error: syntax error before "modify_ldt"
/lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:238: warning: return type defaults to `int'
/lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:238: warning: function declaration isn't a prototype
/lib/modules/fglrx/build_mod/2.6.x/firegl_public.c: In function `_syscall3':
/lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:238: error: parameter `firegl' is initialized
/lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:239: error: parameter `__ke_debuglevel' is initialized
/lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:240: error: parameter `__ke_moduleflags' is initialized
/lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:243: error: storage class specified for parameter `__mod_author243'
/lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:243: error: parameter `__mod_author243' is initialized
/lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:243: warning: `__used__' attribute ignored
/lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:243: error: section attribute not allowed for '__mod_author243'
/lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:244: error: storage class specified for parameter `__mod_description244'
/lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:244: error: parameter `__mod_description244' is initialized
/lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:244: warning: `__used__' attribute ignored
/lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:244: error: section attribute not allowed for '__mod_description244'
/lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:248: error: storage class specified for parameter `__check_firegl'
/lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:248: warning: `always_inline' attribute ignored
/lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:248: error: syntax error before '{' token
...
...
/lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:475: warning: initialization from incompatible pointer type
/lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:475: error: `drm_name_info_wrap' undeclared (first use in this function)
/lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:475: error: (Each undeclared identifier is reported only once
/lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:475: error: for each function it appears in.)
/lib/modules/fglrx/build_mod/2.6.x/firegl_public.c:475: confused by earlier errors, bailing out
make[2]: *** [/lib/modules/fglrx/build_mod/2.6.x/firegl_public.o] Error 1
make[1]: *** [_module_/lib/modules/fglrx/build_mod/2.6.x] Error 2
make[1]: Leaving directory `/usr/src/linux-2.6.20.1'
make: *** [kmod_build] Error 2
build failed with return value 2
[Error] Kernel Module : Failed to compile kernel module - please consult readme.