lacking /proc, allow using sysctl on OpenBSD.

currently used to detect 'SmartDC HVM'

sysutils/virt-what/Makefile

@@ -1,8 +1,9 @@
-# $OpenBSD: Makefile,v 1.1.1.1 2017/08/10 12:23:28 jasper Exp $
+# $OpenBSD: Makefile,v 1.2 2018/04/25 14:36:40 jasper Exp $
 
 COMMENT =		detect if we are running in a virtual machine
 
 DISTNAME =		virt-what-1.18
+REVISION =		0
 CATEGORIES =		sysutils
 
 HOMEPAGE =		https://people.redhat.com/~rjones/virt-what/

sysutils/virt-what/patches/patch-virt-what_in

@@ -1,4 +1,6 @@
-$OpenBSD: patch-virt-what_in,v 1.2 2017/08/10 13:32:55 jasper Exp $
+$OpenBSD: patch-virt-what_in,v 1.3 2018/04/25 14:36:40 jasper Exp $
+
+Use sysctl on OpenBSD -- use this to recognize SmartOS KVM
 
 From eefc1e7e3dd8fb422baf0f13aec1df9880541b83 Mon Sep 17 00:00:00 2001
 From: Jasper Lievisse Adriaanse <bug@jasper.la>
@@ -8,7 +10,32 @@ Subject: [PATCH] Missing have_cpuinfo check.
 Index: virt-what.in
 --- virt-what.in.orig
 +++ virt-what.in
-@@ -308,7 +308,7 @@ if ! "$skip_qemu_kvm"; then
+@@ -38,6 +38,13 @@ have_cpuinfo () {
+     test -e "${root}/proc/cpuinfo"
+ }
+ 
++use_sysctl() {
++    # Lacking /proc, on some systems sysctl can be used instead.
++    OS=$(uname) || fail "failed to get operating system name"
++
++    [ "$OS" == "OpenBSD" ]
++}
++
+ fail () {
+     echo "virt-what: $1" >&2
+     exit 1
+@@ -303,12 +310,18 @@ if ! "$skip_qemu_kvm"; then
+         # We are running as a spapr KVM guest on ppc64
+         echo kvm
+         skip_lkvm=true
++    elif use_sysctl; then
++        # SmartOS KVM
++        product=$(sysctl -n hw.product)
++        if echo "$product" | grep -q 'SmartDC HVM'; then
++            echo kvm
++        fi
+     else
+         # This is known to fail for qemu with the explicit -cpu
          # option, since /proc/cpuinfo will not contain the QEMU
          # string. QEMU 2.10 added a new CPUID leaf, so this
          # problem only triggered for older QEMU