don't call <del-flags> for flags that weren't added

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@47240 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

diff --git a/build/bakefiles/Bakefiles.bkgen b/build/bakefiles/Bakefiles.bkgen
index 3566b49ae824ca8ee17a5e95600ff15bdbb7a023..3926928df8e346703a764d3cd7f1d084ca6f64cd 100644 (file)
--- a/build/bakefiles/Bakefiles.bkgen
+++ b/build/bakefiles/Bakefiles.bkgen
@@ -137,7 +137,8 @@
     <add-flags formats="borland,dmars_smake,dmars,mingw,msvc,watcom">
         -DWRITE_OPTIONS_FILE=0
     </add-flags>
-    <del-flags files="wx.bkl">
+    <del-flags formats="borland,dmars_smake,dmars,mingw,msvc,watcom"
+               files="wx.bkl">
         -DWRITE_OPTIONS_FILE=0
     </del-flags>