libxml2: fix build with automake 1.12

(From OE-Core rev: dd1b77c473ee92608ad0a5bdbea0880d2f613c2c)

Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>
Signed-off-by: Richard Purdie <richard.purdie@linuxfoundation.org>

meta/recipes-core/libxml/libxml2/libxml2_fix_for_automake_1.12.patch

+Upstream-Status: Pending
+
+automake 1.12 has decpricated automatic de-ANSI-fication support
+
+this patch fixes this build issue:
+
+| configure.in:67: error: automatic de-ANSI-fication support has been removed
+Signed-Off-by: Nitin A Kamble <nitin.a.kamble@intel.com>
+2012/05/02
+
+Index: libxml2-2.7.8/configure.in
+===================================================================
+--- libxml2-2.7.8.orig/configure.in
++++ libxml2-2.7.8/configure.in
+@@ -63,8 +63,6 @@ AC_PATH_PROG(WGET, wget, /usr/bin/wget)
+ AC_PATH_PROG(XMLLINT, xmllint, /usr/bin/xmllint)
+ AC_PATH_PROG(XSLTPROC, xsltproc, /usr/bin/xsltproc)
+ 
+-dnl Make sure we have an ANSI compiler
+-AM_C_PROTOTYPES
+ test "x$U" != "x" && AC_MSG_ERROR(Compiler not ANSI compliant)
+ 
+ AC_LIBTOOL_WIN32_DLL

meta/recipes-core/libxml/libxml2_2.7.8.bb

 require libxml2.inc
 
-PR = "r7"
+PR = "r8"
 
-SRC_URI += "file://fix_version_info.patch"
+SRC_URI += "file://fix_version_info.patch \
+            file://libxml2_fix_for_automake_1.12.patch"
 
 SRC_URI[md5sum] = "8127a65e8c3b08856093099b52599c86"
 SRC_URI[sha256sum] = "cda23bc9ebd26474ca8f3d67e7d1c4a1f1e7106364b690d822e009fdc3c417ec"