diff -Naur wmhdplop-0.9.9-orig/configure.ac wmhdplop-0.9.9/configure.ac
--- wmhdplop-0.9.9-orig/configure.ac	2007-04-20 12:18:47 +0300
+++ wmhdplop-0.9.9/configure.ac	2008-12-06 14:36:51 +0200
@@ -68,9 +68,9 @@
 else
   echo building with GKHDPLOP, checking for gtk2..
   pkg_modules="gtk+-2.0 >= 2.0.0"
-  PKG_CHECK_MODULES(PACKAGE, [$pkg_modules])
-  GTK2_CFLAGS=$PACKAGE_CFLAGS;
-  GTK2_LIBS=$PACKAGE_LIBS;
+  PKG_CHECK_MODULES(gtk2, [$pkg_modules])
+  GTK2_CFLAGS=$gtk2_CFLAGS;
+  GTK2_LIBS=$gtk2_LIBS;
   AC_SUBST(GTK2_CFLAGS)
   AC_SUBST(GTK2_LIBS)
   SAVECPPFLAGS="$CPPFLAGS"