+AC_MSG_CHECKING([for gdk-pixbuf module location])
+# Hack alert: we need to install our module into this specific
+# location... BUT, we also want to respect --prefix, at least to the
+# extent that we won't try to install something to, say, /usr when
+# we've passed --prefix=/tmp. This little libdir trick prevents
+# pkg-config from substituting for ${libdir} where it appears in the
+# *.pc file. When we go to actually use gdk_pixbuf_moduledir, the
+# variable ${libdir} will be valid in our own build system, and will
+# respect the prefix. This means that if you configure this package
+# with a different prefix than gdk-pixbuf was, it won't install
+# correctly. But hey, make distcheck works?
+gdk_pixbuf_moduledir=$($PKG_CONFIG --define-variable=libdir="\${libdir}" --variable gdk_pixbuf_moduledir gdk-pixbuf-2.0)
+AC_MSG_RESULT([$gdk_pixbuf_moduledir])
+AC_SUBST([gdk_pixbuf_moduledir])
+
+AC_MSG_CHECKING([for gdk-pixbuf-thumbnailer location])
+gdk_pixbuf_bindir=$($PKG_CONFIG --variable bindir gdk-pixbuf-2.0)
+gdk_pixbuf_thumbnailer="${gdk_pixbuf_bindir}/gdk-pixbuf-thumbnailer"
+
+AS_IF([test -x "${gdk_pixbuf_thumbnailer}"], [
+ AC_MSG_RESULT([$gdk_pixbuf_thumbnailer])
+ AC_SUBST([gdk_pixbuf_thumbnailer])
+],[
+ AC_MSG_RESULT([no])
+])
+
+