From mboxrd@z Thu Jan  1 00:00:00 1970
From: Paolo Bonzini <pbonzini@redhat.com>
Subject: Re: [PATCH 2/2] Install udev rules in system-default directory
Date: Tue, 19 Aug 2014 19:20:20 +0200
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To: Amit Shah <amit.shah@redhat.com>, jgarzik@bitpay.com
Cc: hpa@linux.intel.com, linux-kernel@vger.kernel.org, Virtualization List <virtualization@lists.linux-foundation.org>
List-Id: virtualization@lists.linuxfoundation.org

Il 07/08/2014 15:09, Amit Shah ha scritto:
> +udevrules_DATA	 = 90-virtio-rng.rules

If rng-tools is packaged with "make dist" you need this to be

dist_udevrules_DATA	 = 90-virtio-rng.rules

or alternatively

EXTRA_DIST = 90-virtio-rng.rules
udevrules_DATA	 = 90-virtio-rng.rules

> +AC_ARG_WITH([udevrulesdir],
> +	AS_HELP_STRING([--with-udevrulesdir=DIR], [Directory for udev rules]),
> +	[],
> +	[with_udevrulesdir=$($PKG_CONFIG --variable=udevdir udev)"/rules.d"])
> +AC_SUBST([udevrulesdir], [$with_udevrulesdir])

You can use AM_CONDITIONAL to skip the installation if
$with_udevrulesdir is "no" (aka --without-udevrulesdir).  Then you'd have

EXTRA_DIST = 90-virtio-rng.rules
if INSTALL_UDEV_RULES
udevrules_DATA	 = 90-virtio-rng.rules
endif

I don't know offhand if this works:

if INSTALL_UDEV_RULES
dist_udevrules_DATA	 = 90-virtio-rng.rules
endif

but I think so; you can check with "./configure --without-udevrulesdir
&& make && make dist".

Thanks,

Paolo