what about " $(Q)@ " in toplevel Makefile??? A resent mail..

["yihect" <yihect@xxxxxxx>]

Hi all: 
    Sorry, everybody. I sent the same mail in HTML-FORMAT, so maybe there presented
disorderly characters in your mail client program. It's time waste to open that mail.
So sorry, and I resend this mail with same content...

    I'm reading top-level makefile of kernel version of 2.6.25, and being confused about
"$(Q)@" in following lines:

    124 $(filter-out _all sub-make $(CURDIR)/Makefile, $(MAKECMDGOALS)) _all: sub-make
    125         $(Q)@:

    I know what's meaning for line 124, but what about line 125? Is it a command?
I know the "$(Q)@" indicates nothing if KBUILD_VERBOSE==1,and @ if KBUILD_VERBOSE gave other
values.

    Thanks..
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