diff --git a/direct/src/p3d/panda3d.pdef b/direct/src/p3d/panda3d.pdef
index d298e0e3c1..e85d7f290e 100644
--- a/direct/src/p3d/panda3d.pdef
+++ b/direct/src/p3d/panda3d.pdef
@@ -195,7 +195,7 @@ class morepy(package):
            'termios', 'tty', 'pty', 'fcntl', 'pipes', 'posixfile',
            'resource', 'nis', 'syslog', 'commands', 'ic', 'MacOS',
            'macostools', 'findertools', 'EasyDialogs', 'FrameWork',
-           'autoGIL', 'ColorPicker')
+           'autoGIL', 'ColorPicker', 'ast')
 
     # To add the multitude of standard Python string encodings.
     module('encodings', 'encodings.*')
diff --git a/direct/src/plugin/p3dCert_strings.cxx b/direct/src/plugin/p3dCert_strings.cxx
index bd191768e0..307c9b7f44 100644
--- a/direct/src/plugin/p3dCert_strings.cxx
+++ b/direct/src/plugin/p3dCert_strings.cxx
@@ -82,7 +82,7 @@ no_cert_title[LI_COUNT] = {
   "Keine Signatur!",
   "Sin firma!",
   "Nessuna firma!",
-  "Ne subskribo!",
+  "Neniu subskribo!",
   "\320\235\320\265\321\202 \320\277\320\276\320\264\320\277\320\270\321\201"
   "\320\270!",
 };
@@ -157,7 +157,7 @@ self_signed_cert_text[LI_COUNT] = {
 
   // epo
   "\304\210i tiu aplika\304\265o de Panda3D uzas memsubskribitan ateston.  "
-  "Tio signifas  ke la nomo de la verkanto ne povas esti kontrolita, kaj vi "
+  "Tio signifas ke la nomo de la verkanto ne povas esti kontrolita, kaj vi "
   "ne havas certan scimanieron pri la vera verkanto de la aplika\304\265o.\n"
   "\n"
   "Ni rekomendas ke vi premas la butonon 'Nuligi' por eviti lan\304\211on de "
diff --git a/dtool/src/dtoolutil/filename.h b/dtool/src/dtoolutil/filename.h
index 650f7d84a6..f01d03483e 100644
--- a/dtool/src/dtoolutil/filename.h
+++ b/dtool/src/dtoolutil/filename.h
@@ -60,10 +60,11 @@ public:
     F_pattern         = 0x40,
   };
 
+  INLINE Filename(const char *filename);
+
 PUBLISHED:
   INLINE Filename(const string &filename = "");
   INLINE Filename(const wstring &filename);
-  INLINE Filename(const char *filename);
   INLINE Filename(const Filename &copy);
   Filename(const Filename &dirname, const Filename &basename);
   INLINE ~Filename();
diff --git a/makepanda/makepanda.py b/makepanda/makepanda.py
index 8e5017d4fa..464f798ced 100755
--- a/makepanda/makepanda.py
+++ b/makepanda/makepanda.py
@@ -5097,7 +5097,7 @@ if (RTDIST or RUNTIME):
           OPTS += ['OPT:2']
       TargetAdd('p3dcert.exe', opts=OPTS)
     elif (PkgSkip("WX")==0):
-      OPTS.append("WX")
+      OPTS += ["WX", "RTTI"]
       TargetAdd('plugin_p3dCert.obj', opts=OPTS, input='p3dCert_wx.cxx')
       TargetAdd('p3dcert.exe', input='plugin_mkdir_complete.obj')
       TargetAdd('p3dcert.exe', input='plugin_wstring_encode.obj')