linux-ext4 - Re: [PATCH] configure.in: add --disable-libuuid option (Was: libuuid (Re: blkid: util-linux-ng vs. e2fsprogs))

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Date:	Wed, 1 Jul 2009 23:52:11 +0200
From:	Kay Sievers <kay.sievers@...y.org>
To:	Theodore Tso <tytso@....edu>
Cc:	Scott James Remnant <scott@...ntu.com>,
	Karel Zak <kzak@...hat.com>,
	Andrey Borzenkov <arvidjaar@...l.ru>,
	util-linux-ng@...r.kernel.org, linux-ext4@...r.kernel.org
Subject: Re: [PATCH] configure.in: add --disable-libuuid option (Was: libuuid 
	(Re: blkid: util-linux-ng vs. e2fsprogs))

On Wed, Jul 1, 2009 at 23:43, Theodore Tso<tytso@....edu> wrote:
> On Tue, Jun 30, 2009 at 12:17:02PM +0200, Kay Sievers wrote:
>>
>> And another thing is your custom "silent build" which can not be
>> disabled. Our build system requires the command output for fancy
>> analysis, so it would be good if it could be disabled, like it can for
>> the kernel (V=1). Any ideas, or do I miss some switch?
>
> Is a configure-level switch all that you need?  I hadn't done a
> make-level switch because I was trying to avoid adding a requirement
> of using GNU make in building e2fsprogs, since it gets used by *BSD
> and Solaris systems as well.  (And in fact some of the recent UUID bug
> fixes come from FreeBSD bug reports, and I suspect FreeBSD will
> continue to use UUID library from e2fsprogs rather than pulling in
> util-linux-ng....)

Anything would work, that resolves the '@' to nothing and puts out the
command, an environment var or a switch.

In older udev releases, before we switched to automake, I had
something like this, which behaves a bit like the Linux kernel build,
and V=1 switches off the silent mode:

  V =
  ifeq ($(strip $(V)),)
    E = @echo
    Q = @
  else
    E = @\#
    Q =
  endif
  export E Q

 ...

  $(E) "  CC      " $@
  $(Q) $(CC) -c $(CFLAGS) $< -o $@

  ...

Thanks,
Kay
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