--- src/configure.ac.old	2008-03-06 23:29:12.000000000 +0100
+++ src/configure.ac	2009-11-14 19:24:07.000000000 +0100
@@ -59,11 +59,16 @@
 #include <X11/Xproto.h>])
 	CPPFLAGS="$SAVE_CPPFLAGS"],[echo "not found"])
 
+AC_ARG_WITH([xfontcache], [AS_HELP_STRING([--with-xfontcache],
+[use xfontcache extension @<:@default=no@:>@ ])], [], [with_xfontcache=no])
+AS_IF([test "x$with_xfontcache" != xno],
+[
 PKG_CHECK_MODULES(SET_FONTCACHE, xfontcache,
 	[SAVE_CPPFLAGS="$CPPFLAGS"
 	CPPFLAGS="$CPPFLAGS $SET_FONTCACHE_CFLAGS $SET_X11_CFLAGS"
 	AC_CHECK_HEADERS([X11/extensions/fontcache.h X11/extensions/fontcacheP.h],,,[#include <X11/Xlib.h>])
 	CPPFLAGS="$SAVE_CPPFLAGS"],[echo "not found"])
+])
 
 PKG_CHECK_MODULES(SET_XPRINT, xp, 
 	[SAVE_CPPFLAGS="$CPPFLAGS"