added never_empty hint on WX_DIR option

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@49942 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/build/bakefiles/wxpresets/presets/wx.bkl b/build/bakefiles/wxpresets/presets/wx.bkl
index fc8834470323c6d1561e5eef2c0a02d5f0c47f43..e2b6bdf485d1642c2d8e6a0806c7ca957fbefcc5 100644 (file)
--- a/build/bakefiles/wxpresets/presets/wx.bkl
+++ b/build/bakefiles/wxpresets/presets/wx.bkl
@@ -245,7 +245,7 @@
     <!-- The directory where wxWidgets is installed: -->
     <if cond="not isdefined('WX_DIR')">
         <set var="WX_DIR_DEFAULT" overwrite="0">$(DOLLAR)($(ENV_VAR)WXWIN)</set>
-        <option name="WX_DIR" category="path">
+        <option name="WX_DIR" category="path" never_empty="1">
             <default-value>$(WX_DIR_DEFAULT)</default-value>
             <description>
                 The directory where wxWidgets library is installed