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Date: Mon, 25 Nov 2013 22:31:52 +0200
From: "Michael S. Tsirkin" <mst@redhat.com>
Message-ID: <20131125203152.GB12689@redhat.com>
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Subject: Re: [Qemu-devel] [PULL for-1.7 v2 3/6] acpi-build: fix build on
	glib < 2.22
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To: Richard Henderson <rth@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>, qemu-devel@nongnu.org

On Tue, Nov 26, 2013 at 06:24:53AM +1000, Richard Henderson wrote:
> On 11/25/2013 09:48 PM, Michael S. Tsirkin wrote:
> > g_string_vprintf was only introduced in 2.24 so switch to vsnprintf
> > instead.  A bit uglier but name size is fixed at 4 bytes here so it's
> > easy.
> 
> You list 2.24 here,
> 
> > -    GString *s = g_string_new("");
> > +    /* It would be nicer to use g_string_vprintf but it's only there in 2.22 */
> 
> ... 2.22 here.
> 
> But https://developer.gnome.org/glib/2.28/glib-Strings.html#g-string-vprintf
> 
> says "since 2.14".
> 
> > +    char s[] = "XXXX";
> 
> char s[5];
> 
> Initializing it is a waste of time.
> 
> 
> r~

It's sets the length in a nice way.