Don't install sysctl file on non-Linux hosts

* configure.ac: Set WITH_SYSCTL only on Linux hosts
* daemon/Makefile.am: Conditionalize install-sysctl using WITH_SYSCTL
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>
Cc: Jason Helfman <jhelfman@e-e.com>

configure.ac

@@ -403,6 +403,31 @@ AM_CONDITIONAL([LIBVIRT_INIT_SCRIPT_UPSTART], test "$init_upstart" = "yes")
 AM_CONDITIONAL([LIBVIRT_INIT_SCRIPT_SYSTEMD], test "$init_systemd" = "yes")
 AC_MSG_RESULT($with_init_script)
 
+
+AC_MSG_CHECKING([for whether to install sysctl config])
+AC_ARG_WITH([sysctl],
+            [AC_HELP_STRING([--with-sysctl@<:@=yes/no@:>@],
+                            [Whether to install sysctl configs @<:@default=auto@:>@])],
+                            [],[with_sysctl=check])
+
+if test "$with_sysctl" = "yes" || test "$with_sysctl" = "check"
+then
+  case $host in
+    *-*-linux*)
+      with_sysctl=yes
+      ;;
+    **)
+      if test "$with_sysctl" = "yes"; then
+         AC_MSG_ERROR([No sysctl configuration supported for $host])
+      else
+         with_sysctl=no
+      fi
+      ;;
+  esac
+fi
+AM_CONDITIONAL([WITH_SYSCTL], test "$with_sysctl" = "yes")
+AC_MSG_RESULT($with_sysctl)
+
 dnl RHEL-5 has a peculiar version of Xen, which requires some special casing
 AC_ARG_WITH([rhel5-api],
 	[AC_HELP_STRING([--with-rhel5-api=@<:@ARG@:>@],

daemon/Makefile.am

@@ -256,6 +256,7 @@ uninstall-sysconfig:
 	rm -f $(DESTDIR)$(sysconfdir)/sysconfig/libvirtd
 	rmdir $(DESTDIR)$(sysconfdir)/sysconfig || :
 
+if WITH_SYSCTL
 install-sysctl:
 	$(MKDIR_P) $(DESTDIR)$(sysconfdir)/sysctl.d
 	$(INSTALL_DATA) $(srcdir)/libvirtd.sysctl \
@@ -264,6 +265,10 @@ install-sysctl:
 uninstall-sysctl:
 	rm -f $(DESTDIR)$(sysconfdir)/sysctl.d/libvirtd
 	rmdir $(DESTDIR)$(sysconfdir)/sysctl.d || :
+else
+install-sysctl:
+uninstall-sysctl:
+endif
 
 if LIBVIRT_INIT_SCRIPT_RED_HAT