diff -Naurp mb-desktop-image-browser-0.2.orig/configure.ac mb-desktop-image-browser-0.2/configure.ac
--- mb-desktop-image-browser-0.2.orig/configure.ac	2010-01-06 01:05:40.000000000 +0000
+++ mb-desktop-image-browser-0.2/configure.ac	2010-01-06 01:07:24.000000000 +0000
@@ -34,6 +34,20 @@ AC_ARG_ENABLE(debug,
       MB_CFLAGS="$MB_CFLAGS -DDEBUG"
   fi])
 
+
+dnl ------ Substitute in found libs, clags to Makefiles etc -----------------
+
+if test "x$prefix" = xNONE; then
+   prefix="${ac_default_prefix}"
+fi
+if test "x$exec_prefix" = xNONE; then
+   exec_prefix='${prefix}'
+fi
+
+MBDESKTOP_PLUGIN_DIR=$libdir/matchbox/desktop
+eval MBDESKTOP_PLUGIN_DIR=`eval echo "$MBDESKTOP_PLUGIN_DIR"`
+
+AC_SUBST(MBDESKTOP_PLUGIN_DIR)
 AC_SUBST(MB_LIBS)
 AC_SUBST(MB_CFLAGS)
 
diff -Naurp mb-desktop-image-browser-0.2.orig/Makefile.am mb-desktop-image-browser-0.2/Makefile.am
--- mb-desktop-image-browser-0.2.orig/Makefile.am	2010-01-06 01:05:40.000000000 +0000
+++ mb-desktop-image-browser-0.2/Makefile.am	2010-01-06 01:07:01.000000000 +0000
@@ -4,7 +4,7 @@ LDADD = $(MB_LIBS) 
 AM_CFLAGS = $(MB_CFLAGS)  -g -DDATADIR=\"$(datadir)\"
 
 lib_LTLIBRARIES = imgbrowser.la
-libdir = $(datadir)/matchbox/desktop/modules
+libdir = $(MBDESKTOP_PLUGIN_DIR)
 
 imgbrowser_la_SOURCES = imgbrowser.c
 imgbrowser_la_LIBADD  = $(LDADD)