Fixed nut to not install its drivers skeleton

monitor/nut/no_skel.patch

@@ -0,0 +1,11 @@
+--- nut-2.2.0/drivers/Makefile.am.orig	2007-10-16 16:52:04.000000000 +0300
++++ nut-2.2.0/drivers/Makefile.am	2007-10-16 16:52:14.000000000 +0300
+@@ -19,7 +19,7 @@
+  bestuferrups bestups cpsups cyberpower dummy-ups etapro everups 	\
+  gamatronic genericups isbmex liebert masterguard megatec metasys 	\
+  mge-shut mge-utalk newmge-shut	nitram oneac optiups powercom rhino 	\
+- safenet skel solis tripplite tripplitesu upscode2 victronups powerpanel
++ safenet solis tripplite tripplitesu upscode2 victronups powerpanel
+ SNMP_DRIVERLIST = snmp-ups
+ USB_LIBUSB_DRIVERLIST = usbhid-ups bcmxcp_usb tripplite_usb megatec_usb
+ USB_HIDDEV_DRIVERLIST = energizerups

monitor/nut/nut.conf

@@ -12,5 +12,9 @@
 # GNU General Public License can be found in the file COPYING.
 # --- SDE-COPYRIGHT-NOTE-END ---
 
+# we patch drivers/Makefile.am to not install the driver skeleton
+# (see: no_skel.patch)
+hook_add preconf 5 "aclocal -I m4; autoconf; automake -a"
+
 # build and install libupsclient by default
 var_append confopt ' ' "--with-lib"