File gcc7-arm.patch of Package xen.openSUSE_Leap_42.3_Update

Fixes compile time warning -> error
  xc_dom_arm.c: In function 'meminit':
  xc_dom_arm.c:229:31: error: 'domctl.u.address_size.size' may be used uninitialized in this function [-Werror=maybe-uninitialized]

--- xen-4.9.0-testing/tools/libxc/xc_dom_arm.c.orig	2017-06-21 15:17:54.663169127 -0600
+++ xen-4.9.0-testing/tools/libxc/xc_dom_arm.c	2017-06-21 15:18:44.141295411 -0600
@@ -223,6 +223,7 @@ static int set_mode(xc_interface *xch, d
 
     domctl.domain = domid;
     domctl.cmd    = XEN_DOMCTL_set_address_size;
+    domctl.u.address_size.size = 0;
     for ( i = 0; i < ARRAY_SIZE(types); i++ )
         if ( !strcmp(types[i].guest, guest_type) )
             domctl.u.address_size.size = types[i].size;