configure: move QEMU driver check to its own file

Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

configure.ac

@@ -400,7 +400,7 @@ fi
 dnl Allow to build without Xen, QEMU/KVM, test or remote driver
 LIBVIRT_ARG_WITH([XEN], [XEN], [check])
 LIBVIRT_ARG_WITH([XEN_INOTIFY], [XEN inotify], [check])
-LIBVIRT_ARG_WITH([QEMU], [QEMU/KVM], [yes])
+LIBVIRT_DRIVER_ARG_QEMU
 LIBVIRT_DRIVER_ARG_OPENVZ
 LIBVIRT_DRIVER_ARG_VMWARE
 LIBVIRT_ARG_WITH([PHYP], [PHYP], [check])
@@ -476,10 +476,7 @@ if test "x$with_vbox" = "xyes"; then
 fi
 AM_CONDITIONAL([WITH_VBOX], [test "$with_vbox" = "yes"])
 
-if test "$with_qemu" = "yes" ; then
-    AC_DEFINE_UNQUOTED([WITH_QEMU], 1, [whether QEMU driver is enabled])
-fi
-AM_CONDITIONAL([WITH_QEMU], [test "$with_qemu" = "yes"])
+LIBVIRT_DRIVER_CHECK_QEMU
 
 if test "$with_test" = "yes" ; then
     AC_DEFINE_UNQUOTED([WITH_TEST], 1, [whether Test driver is enabled])
@@ -1665,7 +1662,7 @@ AC_MSG_NOTICE([])
 AC_MSG_NOTICE([Drivers])
 AC_MSG_NOTICE([])
 AC_MSG_NOTICE([      Xen: $with_xen])
-AC_MSG_NOTICE([     QEMU: $with_qemu])
+LIBVIRT_DRIVER_RESULT_QEMU
 LIBVIRT_DRIVER_RESULT_UML
 LIBVIRT_DRIVER_RESULT_OPENVZ
 LIBVIRT_DRIVER_RESULT_VMWARE

m4/virt-driver-qemu.m4

+dnl The QEMU driver
+dnl
+dnl Copyright (C) 2016 Red Hat, Inc.
+dnl
+dnl This library is free software; you can redistribute it and/or
+dnl modify it under the terms of the GNU Lesser General Public
+dnl License as published by the Free Software Foundation; either
+dnl version 2.1 of the License, or (at your option) any later version.
+dnl
+dnl This library is distributed in the hope that it will be useful,
+dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+dnl Lesser General Public License for more details.
+dnl
+dnl You should have received a copy of the GNU Lesser General Public
+dnl License along with this library.  If not, see
+dnl <http://www.gnu.org/licenses/>.
+dnl
+
+AC_DEFUN([LIBVIRT_DRIVER_ARG_QEMU], [
+  LIBVIRT_ARG_WITH([QEMU], [QEMU/KVM], [yes])
+])
+
+AC_DEFUN([LIBVIRT_DRIVER_CHECK_QEMU], [
+  if test "$with_qemu" = "yes" ; then
+    AC_DEFINE_UNQUOTED([WITH_QEMU], 1, [whether QEMU driver is enabled])
+  fi
+  AM_CONDITIONAL([WITH_QEMU], [test "$with_qemu" = "yes"])
+])
+
+AC_DEFUN([LIBVIRT_DRIVER_RESULT_QEMU], [
+  LIBVIRT_RESULT([QEMU], [$with_qemu])
+])