All of lore.kernel.org
 help / color / mirror / Atom feed
From: Paul Brook <paul@codesourcery.com>
To: qemu-devel@nongnu.org
Cc: Ian Jackson <Ian.Jackson@eu.citrix.com>
Subject: Re: [Qemu-devel] [PATCH] CPPFLAGS+= in Makefile.target
Date: Fri, 25 Jan 2008 15:53:36 +0000	[thread overview]
Message-ID: <200801251553.37283.paul@codesourcery.com> (raw)
In-Reply-To: <18330.565.643731.225337@mariner.uk.xensource.com>

On Friday 25 January 2008, Ian Jackson wrote:
> Paul Brook writes ("Re: [Qemu-devel] [PATCH] CPPFLAGS+= in 
Makefile.target"):
> > In that case you should always provide a definition in config-host.mak.
> > Under some circumstances make may inherit initial values from elsewhere.
>
> What circumstances ?  CPPFLAGS+= overrides (discards) values in the
> environment as well as ones from the command line.

$ cat Makefile
FOO += World
all:
        @echo "$(FOO)"
$ FOO=Hello make
Hello World

  reply	other threads:[~2008-01-25 15:53 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2008-01-25 14:18 [Qemu-devel] [PATCH] CPPFLAGS+= in Makefile.target Ian Jackson
2008-01-25 14:39 ` Paul Brook
2008-01-25 14:44   ` Ian Jackson
2008-01-25 14:48     ` Ian Jackson
2008-01-25 15:36       ` Paul Brook
2008-01-25 15:37         ` Ian Jackson
2008-01-25 15:53           ` Paul Brook [this message]
2008-01-25 16:03             ` Ian Jackson
2008-01-25 16:03           ` Paul Brook
2008-01-25 16:12             ` Ian Jackson
2008-01-25 16:22               ` Paul Brook
2008-01-25 16:29                 ` Ian Jackson
2008-01-28  9:09   ` Ronan Keryell
2008-01-28 11:35     ` Thiemo Seufer

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=200801251553.37283.paul@codesourcery.com \
    --to=paul@codesourcery.com \
    --cc=Ian.Jackson@eu.citrix.com \
    --cc=qemu-devel@nongnu.org \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body. 
This is an external index of several public inboxes,
see mirroring instructions on how to clone and mirror
all data and code used by this external index.