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From: Rainer Weikusat <rweikusat@mssgmbh.com>
Newsgroups: comp.os.linux.development.system
Subject: Re: Kernel Compilation Error (stable build 3.0.4)
Date: Tue, 18 Oct 2011 13:17:27 +0100
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Ripunjay Tripathi <ripunjay.tripathi@gmail.com> writes:

[...]

> CC      arch/x86/lib/delay.o
>   AS      arch/x86/lib/getuser.o
>   CC      arch/x86/lib/inat.o
>   CC      arch/x86/lib/insn.o
>   CC      arch/x86/lib/memcpy_32.o
>   AS      arch/x86/lib/putuser.o
>   AS      arch/x86/lib/semaphore_32.o
>   CC      arch/x86/lib/string_32.o
>   CC      arch/x86/lib/strstr_32.o
>   AS      arch/x86/lib/thunk_32.o
>   CC      arch/x86/lib/usercopy_32.o
>   AR      arch/x86/lib/lib.a
> make: Warning: File `arch/x86/lib/lib.a' has modification time 11 s in
> the future
>   LD      vmlinux.o
> make[1]: Warning: File `vmlinux.o' has modification time 10 s in the
> future
>   MODPOST vmlinux.o
> make[1]: warning:  Clock skew detected.  Your build may be
>   incomplete.

There's another nascent problem here: Make is a program which executes
commands to create 'target' files based on 'source files' by
comparing the file timestamps of possibly existing target files and
source files. This implies that copying archive files around among
systems whose idea of 'the current time' differs (as evidenced above)
may (and sooner or later will) cause to make to not recompile
something which should be recompiled leading to all kinds of weird
errors when trying to use the resulting binary.