make dillo compile with clang

* Variable length arrays are not allowed in C++. They are supported in
  C99 and gcc seems to accept them in C++ mode.
  Replace the few places where variable length arrays are used.
* The widget member in ComplexButtonResource was colliding with the
  widget member of FltkResource, so rename it to childWidget.

1 files changed, 1 insertions, 1 deletions

diff --git a/dw/ui.hh b/dw/ui.hh
index 02aab093..b0a22cbf 100644
--- a/dw/ui.hh
+++ b/dw/ui.hh
@@ -382,7 +382,7 @@ private:
    friend class LayoutReceiver;
    LayoutReceiver layoutReceiver;
 
-   Widget *widget;
+   Widget *childWidget;
 
 protected:
    Layout *layout;