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