make: Warning: File `/usr/builds/linux-2.6.32/arch/x86/Makefile' has modification time 1.4e+04 s in the future
make[1]: Warning: File `scripts/Makefile.host' has modification time 1.4e+04 s in the future
  HOSTCC  scripts/basic/fixdep
  HOSTCC  scripts/basic/docproc
  HOSTCC  scripts/basic/hash
make[1]: warning:  Clock skew detected.  Your build may be incomplete.
make[1]: Warning: File `scripts/Makefile.host' has modification time 1.4e+04 s in the future
  HOSTCC  scripts/kconfig/conf.o
  HOSTCC  scripts/kconfig/kxgettext.o
  SHIPPED scripts/kconfig/zconf.tab.c
  SHIPPED scripts/kconfig/lex.zconf.c
  SHIPPED scripts/kconfig/zconf.hash.c
  HOSTCC  scripts/kconfig/zconf.tab.o
  HOSTLD  scripts/kconfig/conf
*** Default configuration is based on 'x86_64_defconfig'
arch/x86/configs/x86_64_defconfig:1061:warning: symbol value 'm' invalid for RFKILL_INPUT
#
# configuration written to .config
#
make[1]: warning:  Clock skew detected.  Your build may be incomplete.
make: warning:  Clock skew detected.  Your build may be incomplete.