--- a/configure.ac	2012-11-06 11:20:54.099021892 -0500
+++ b/configure.ac~	2012-11-06 11:19:57.255023857 -0500
@@ -548,7 +548,7 @@
 
 fi
 EX_CHECK_ALL(glib-2.0,   glib_check_version,            glib.h,                 glib-2.0,    2.28.7, ftp://ftp.gtk.org/pub/glib/2.28/, "")
-EX_CHECK_ALL(xml2,       xmlParseFile,                  libxml/parser.h,        libxml-2.0,        2.7.8,  http://xmlsoft.org/downloads.html, /usr/include/libxml2)
+EX_CHECK_ALL(xml2,       xmlParseFile,                  libxml/parser.h,        libxml-2.0,        2.7.8,  http://xmlsoft.org/downloads.html, "")
 
 if test "$EX_CHECK_ALL_ERR" = "YES"; then
   AC_MSG_ERROR([Please fix the library issues listed above and try again.])