[PATCH 13/89] configure: move libxml check to its own file

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Signed-off-by: Pavel Hrdina <phrdina@xxxxxxxxxx>
---
 configure.ac      | 55 +++------------------------------------
 m4/virt-libxml.m4 | 78 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 2 files changed, 81 insertions(+), 52 deletions(-)
 create mode 100644 m4/virt-libxml.m4

diff --git a/configure.ac b/configure.ac
index a710a4f050..26174cc2e4 100644
--- a/configure.ac
+++ b/configure.ac
@@ -110,7 +110,6 @@ then
 fi
 
 dnl Required minimum versions of all libs we depend on
-LIBXML_REQUIRED="2.6.0"
 POLKIT_REQUIRED="0.6"
 PARTED_REQUIRED="1.8.0"
 DEVMAPPER_REQUIRED=1.0.0
@@ -995,56 +994,8 @@ dnl Need to test if pkg-config exists
 PKG_PROG_PKG_CONFIG
 
 
-dnl ==========================================================================
-dnl find libxml2 library, borrowed from xmlsec
-dnl ==========================================================================
-LIBXML_CONFIG="xml2-config"
-LIBXML_CFLAGS=""
-LIBXML_LIBS=""
-LIBXML_FOUND="no"
-
-LIBVIRT_ARG_WITH_ALT([LIBXML], [libxml2 (>= 2.6.0) location], [check])
-
-if test "x$with_libxml" = "xno" ; then
-    AC_MSG_CHECKING(for libxml2 libraries >= $LIBXML_REQUIRED)
-    AC_MSG_ERROR([libxml2 >= $LIBXML_REQUIRED is required for libvirt])
-elif test "x$with_libxml" != "xno" && test "x$PKG_CONFIG" != "x" ; then
-    PKG_CHECK_MODULES(LIBXML, libxml-2.0 >= $LIBXML_REQUIRED, [LIBXML_FOUND=yes], [LIBXML_FOUND=no])
-fi
-if test "$LIBXML_FOUND" = "no" ; then
-    if test "x$with_libxml" != "xyes" ; then
-	LIBXML_CONFIG=$with_libxml/bin/$LIBXML_CONFIG
-    fi
-    AC_MSG_CHECKING(libxml2 $LIBXML_CONFIG >= $LIBXML_REQUIRED )
-    if ! $LIBXML_CONFIG --version > /dev/null 2>&1 ; then
-	AC_MSG_ERROR([Could not find libxml2 anywhere (see config.log for details).])
-    fi
-    vers=`$LIBXML_CONFIG --version | awk -F. '{ printf "%d", ($1 * 1000 + $2) * 1000 + $3;}'`
-    minvers=`echo $LIBXML_REQUIRED | awk -F. '{ printf "%d", ($1 * 1000 + $2) * 1000 + $3;}'`
-    if test "$vers" -ge "$minvers" ; then
-        LIBXML_LIBS="`$LIBXML_CONFIG --libs`"
-        LIBXML_CFLAGS="`$LIBXML_CONFIG --cflags`"
-	LIBXML_FOUND="yes"
-        AC_MSG_RESULT(yes)
-    else
-        AC_MSG_ERROR(
-          [You need at least libxml2 $LIBXML_REQUIRED for this version of libvirt])
-    fi
-fi
-
-AC_SUBST([LIBXML_CFLAGS])
-AC_SUBST([LIBXML_LIBS])
-
-dnl xmlURI structure has query_raw?
-old_CFLAGS="$CFLAGS"
-old_LIBS="$LIBS"
-CFLAGS="$CFLAGS $LIBXML_CFLAGS"
-LIBS="$LIBS $LIBXML_LIBS"
-AC_CHECK_MEMBER([struct _xmlURI.query_raw],
-		[AC_DEFINE([HAVE_XMLURI_QUERY_RAW], [], [Have query_raw field in libxml2 xmlURI structure])],,
-		[#include <libxml/uri.h>])
-CFLAGS="$old_CFLAGS"
-LIBS="$old_LIBS"
+LIBVIRT_ARG_LIBXML
+LIBVIRT_CHECK_LIBXML
 
 
 LIBVIRT_ARG_WITH_ALT([TLS_PRIORITY],
@@ -2456,6 +2407,7 @@ LIBVIRT_RESULT_GLUSTER
 LIBVIRT_RESULT_GNUTLS
 LIBVIRT_RESULT_HAL
 LIBVIRT_RESULT_LIBSSH
+LIBVIRT_RESULT_LIBXML
 LIBVIRT_RESULT_NETCF
 LIBVIRT_RESULT_NSS
 LIBVIRT_RESULT_NUMACTL
@@ -2468,7 +2420,6 @@ LIBVIRT_RESULT_SELINUX
 LIBVIRT_RESULT_SSH2
 LIBVIRT_RESULT_UDEV
 LIBVIRT_RESULT_YAJL
-AC_MSG_NOTICE([  libxml: $LIBXML_CFLAGS $LIBXML_LIBS])
 AC_MSG_NOTICE([  dlopen: $DLOPEN_LIBS])
 AC_MSG_NOTICE([firewalld: $with_firewalld])
 if test "$with_polkit" = "yes" ; then
diff --git a/m4/virt-libxml.m4 b/m4/virt-libxml.m4
new file mode 100644
index 0000000000..8bb092f610
--- /dev/null
+++ b/m4/virt-libxml.m4
@@ -0,0 +1,78 @@
+dnl The libxml-2.0 library
+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_ARG_LIBXML], [
+  LIBVIRT_ARG_WITH_ALT([LIBXML], [libxml-2.0 (>= 2.6.0) location], [check])
+])
+
+AC_DEFUN([LIBVIRT_CHECK_LIBXML], [
+  LIBXML_REQUIRED="2.6.0"
+  LIBXML_CONFIG="xml2-config"
+  LIBXML_CFLAGS=""
+  LIBXML_LIBS=""
+  LIBXML_FOUND="no"
+
+  if test "x$with_libxml" = "xno" ; then
+    AC_MSG_CHECKING(for libxml2 libraries >= $LIBXML_REQUIRED)
+    AC_MSG_ERROR([libxml2 >= $LIBXML_REQUIRED is required for libvirt])
+  elif test "x$with_libxml" != "xno" && test "x$PKG_CONFIG" != "x" ; then
+    PKG_CHECK_MODULES(LIBXML, libxml-2.0 >= $LIBXML_REQUIRED, [LIBXML_FOUND=yes], [LIBXML_FOUND=no])
+  fi
+  if test "$LIBXML_FOUND" = "no" ; then
+    if test "x$with_libxml" != "xyes" ; then
+      LIBXML_CONFIG=$with_libxml/bin/$LIBXML_CONFIG
+    fi
+    AC_MSG_CHECKING(libxml2 $LIBXML_CONFIG >= $LIBXML_REQUIRED )
+    if ! $LIBXML_CONFIG --version > /dev/null 2>&1 ; then
+      AC_MSG_ERROR([Could not find libxml2 anywhere (see config.log for details).])
+    fi
+    vers=`$LIBXML_CONFIG --version | awk -F. '{ printf "%d", ($1 * 1000 + $2) * 1000 + $3;}'`
+    minvers=`echo $LIBXML_REQUIRED | awk -F. '{ printf "%d", ($1 * 1000 + $2) * 1000 + $3;}'`
+    if test "$vers" -ge "$minvers" ; then
+      LIBXML_LIBS="`$LIBXML_CONFIG --libs`"
+      LIBXML_CFLAGS="`$LIBXML_CONFIG --cflags`"
+      LIBXML_FOUND="yes"
+      AC_MSG_RESULT(yes)
+    else
+      AC_MSG_ERROR(
+        [You need at least libxml2 $LIBXML_REQUIRED for this version of libvirt])
+    fi
+  fi
+
+  AC_SUBST([LIBXML_CFLAGS])
+  AC_SUBST([LIBXML_LIBS])
+
+  dnl xmlURI structure has query_raw?
+  old_CFLAGS="$CFLAGS"
+  old_LIBS="$LIBS"
+  CFLAGS="$CFLAGS $LIBXML_CFLAGS"
+  LIBS="$LIBS $LIBXML_LIBS"
+
+  AC_CHECK_MEMBER([struct _xmlURI.query_raw],
+                  [AC_DEFINE([HAVE_XMLURI_QUERY_RAW], [1],
+                             [Have query_raw field in libxml2 xmlURI structure])],
+                  [], [#include <libxml/uri.h>])
+
+  CFLAGS="$old_CFLAGS"
+  LIBS="$old_LIBS"
+])
+
+AC_DEFUN([LIBVIRT_RESULT_LIBXML], [
+  LIBVIRT_RESULT_LIB([LIBXML])
+])
-- 
2.11.0

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