Ensure that the TOOLDIR exists

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/branches/WX_2_4_BRANCH@19329 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

wxPython/distrib/mac/MacPython/resources/postflight

@@ -18,6 +18,8 @@ else
     TOOLDIR=$DEST/bin
 fi
 
+# Make sure the dir exists
+mkdir -p $TOOLDIR
 
 # Make some links to the python executable
 if [ -e $TOOLDIR/python$PYVER]; then