Re: [Xen-devel] [PATCH 11 of 18] tools/libxl: fix build errors caused by Werror in disk_eject_xswatch_callback

[Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>]

Olaf Hering writes ("Re: [Xen-devel] [PATCH 11 of 18] tools/libxl: fix build 
errors caused by Werror in disk_eject_xswatch_callback"):
> On Mon, Apr 02, Ian Jackson wrote:
> > There is nothing wrong with zero-length format strings.  This warning
> > should be disabled.  Please do send a patch to do so.
> 
> -Wno-format-zero-length -Wall has no effect, and -Wall comes from
> RPM_OPT_FLAGS which will come last with my current EXTRA_CFLAGS patch.

Every occurrence of -Wall should have -Wno-format-zero-length
appended.  There is no reason ever to warn about zero-length format
strings and it is a mystery why it's still the default.

Ian.

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