diff -up SimGear-2.0.0/configure.ac.expat SimGear-2.0.0/configure.ac
--- SimGear-2.0.0/configure.ac.expat	2011-04-20 14:57:01.357414861 -0400
+++ SimGear-2.0.0/configure.ac	2011-04-20 14:57:43.666878328 -0400
@@ -295,6 +295,16 @@ AM_CONDITIONAL(HAVE_GLUT, test "x$have_g
 opengl_LIBS="$LIBS"
 LIBS="$base_LIBS"
 
+dnl check for expat library
+EXPAT_OK="no"
+expat_LIBS=""
+save_LIBS=$LIBS
+LIBS="$LIBS $thread_LIBS"
+AC_SEARCH_LIBS(XML_GetFeatureList, expat)
+EXPAT_OK="$ac_cv_search_XML_GetFeatureList"
+expat_LIBS="$LIBS"
+LIBS=$save_LIBS
+
 dnl check for OpenAL libraries
 OPENAL_OK="no"
 ALUT_OK="no"
@@ -408,6 +418,7 @@ fi
 LIBS="$base_LIBS"
 
 AC_SUBST(base_LIBS)
+AC_SUBST(expat_LIBS)
 AC_SUBST(openal_LIBS)
 AC_SUBST(opengl_LIBS)
 AC_SUBST(thread_LIBS)
diff -up SimGear-2.0.0/simgear/xml/Makefile.am.expat SimGear-2.0.0/simgear/xml/Makefile.am
--- SimGear-2.0.0/simgear/xml/Makefile.am.expat	2011-04-20 14:57:01.367414734 -0400
+++ SimGear-2.0.0/simgear/xml/Makefile.am	2011-04-20 14:57:01.388414468 -0400
@@ -5,22 +5,13 @@ lib_LTLIBRARIES = libsgxml.la
 include_HEADERS = \
 	easyxml.hxx
 
-noinst_HEADERS = \
-	xmltok_impl.c xmltok_ns.c
-
 libsgxml_la_SOURCES = \
-	asciitab.h \
-	easyxml.cxx \
-	hashtable.h hashtable.c \
-	iasciitab.h latin1tab.h nametab.h utf8tab.h xmldef.h \
-	xmlparse.h xmlparse.c \
-	xmlrole.h xmlrole.c \
-	xmltok.h xmltok.c \
-	xmltok_impl.h
+	easyxml.cxx
 
 libsgxml_la_LDFLAGS = -release @VERSION@ -module
 
 libsgxml_la_LIBADD = \
+	$(expat_LIBS) \
 	$(top_builddir)/simgear/structure/libsgstructure.la
 
 INCLUDES = -I$(top_srcdir)
diff -up SimGear-2.0.0/simgear/xml/easyxml.cxx.expat SimGear-2.0.0/simgear/xml/easyxml.cxx
--- SimGear-2.0.0/simgear/xml/easyxml.cxx.expat	2011-04-20 14:59:57.673181770 -0400
+++ SimGear-2.0.0/simgear/xml/easyxml.cxx	2011-04-20 15:00:05.680080530 -0400
@@ -9,7 +9,7 @@
 #include <string.h>		// strcmp()
 
 #include "easyxml.hxx"
-#include "xmlparse.h"
+#include <expat.h>
 
 #include <fstream>
 #include <iostream>