In file included from include/linux/pid.h:7,
                 from include/linux/sched.h:33,
                 from arch/i386/kernel/asm-offsets.c:7:
include/linux/types.h:216:2: #endif without #if
make[1]: *** [arch/i386/kernel/asm-offsets.s] Error 1
make: *** [prepare0] Error 2

!!! ERROR: sys-kernel/linux-headers-2.6.17-r2 failed.
Call stack:
  ebuild.sh, line 1614:   Called dyn_compile
  ebuild.sh, line 971:   Called qa_call 'src_compile'
  environment, line 3861:   Called src_compile
  ebuild.sh, line 1304:   Called kernel-2_src_compile
  kernel-2.eclass, line 1037:   Called compile_headers
  kernel-2.eclass, line 460:   Called die

!!! prepare failed
!!! If you need support, post the topmost build error, and the call stack if relevant.
!!! A complete build log is located at '/var/tmp/portage/sys-kernel/linux-headers-2.6.17-r2/temp/build.log'.