diff -purN xhost-1.0.2.orig/configure xhost-1.0.2/configure
--- xhost-1.0.2.orig/configure	2010-01-27 13:14:51.000000000 +0100
+++ xhost-1.0.2/configure	2010-01-27 13:19:37.000000000 +0100
@@ -3597,6 +3597,7 @@ pkg_failed=no
 { echo "$as_me:$LINENO: checking for XHOST" >&5
 echo $ECHO_N "checking for XHOST... $ECHO_C" >&6; }
 
+if ! test -n "$XHOST_LIBS"; then
 if test -n "$PKG_CONFIG"; then
         if test -n "$PKG_CONFIG" && \
     { (echo "$as_me:$LINENO: \$PKG_CONFIG --exists --print-errors \"x11 xmuu xau\"") >&5
@@ -3625,6 +3626,9 @@ fi
 else
 	pkg_failed=untried
 fi
+else
+	pkg_failed=no
+fi
 
 if test $pkg_failed = yes; then
 	XHOST_PKG_ERRORS=`$PKG_CONFIG --errors-to-stdout --print-errors "x11 xmuu xau"`