diff -urN LPub4.orig/preferencesdialog.cpp LPub4.prefs-filter/preferencesdialog.cpp
--- LPub4.orig/preferencesdialog.cpp	2009-09-12 10:35:40.000000000 -0500
+++ LPub4.prefs-filter/preferencesdialog.cpp	2009-09-12 11:25:23.000000000 -0500
@@ -106,6 +106,8 @@
 
 #ifdef __APPLE__
   //dialog.setFilter("Program (*.app,*.App)");
+#elif defined(__unix__)
+  /* no filter */
 #else
   dialog.setFilter("Program (*.exe)");
 #endif
@@ -136,6 +138,8 @@
 
 #ifdef __APPLE__
   //dialog.setFilter("Program (*.app,*.App)");
+#elif defined(__unix__)
+  /* no filter */
 #else
   dialog.setFilter("Program (*.exe)");
 #endif