Fix libxml2 for cross-compiling

Use proper XML2_INCLUDE path when cross-compiling

Upstream-Status: Pending

Signed-of-by: Aws Ismail <aws.ismail@windriver.com>

diff --git a/configure.ac b/configure.ac
index 30a792c..b5f5aad 100644
--- a/configure.ac
+++ b/configure.ac
@@ -175,7 +175,7 @@ AC_CHECK_HEADERS([openssl/md2.h openssl/md5.h openssl/bio.h openssl/ssl.h openss
 
 dnl xml is used for XML-based communication in ilo2_ribcl and oa_soap
 AC_CHECK_LIB([xml2],[xmlParseMemory],[XML2_LIB=-lxml2],[XML2_LIB=])
-AC_CHECK_HEADERS([libxml2/libxml/xmlexports.h],[XML2_INCLUDE="-I/usr/include/libxml2"],[XML2_INCLUDE])
+AC_CHECK_HEADERS([libxml2/libxml/xmlexports.h],[XML2_INCLUDE="$XML2_INCLUDE"],[XML2_INCLUDE])
 AC_SUBST(XML2_LIB)
 AC_SUBST(XML2_INCLUDE)
 
