+<!-- ====================================================================== -->
+<!-- OpenGL canvas -->
+<!-- ====================================================================== -->
+
+<set var="OPENGL_SRC">
+ <if cond="TOOLKIT=='MAC'">src/mac/glcanvas.cpp</if>
+ <if cond="TOOLKIT=='GTK'">src/gtk/glcanvas.cpp</if>
+ <if cond="TOOLKIT=='MSW'">src/msw/glcanvas.cpp</if>
+ <if cond="TOOLKIT=='MOTIF'">src/motif/glcanvas.cpp</if>
+ <if cond="TOOLKIT=='X11'">src/x11/glcanvas.cpp</if>
+</set>
+
+<set var="OPENGL_HDR">
+ <if cond="TOOLKIT=='MAC'">wx/mac/glcanvas.h</if>
+ <if cond="TOOLKIT=='GTK'">wx/gtk/glcanvas.h</if>
+ <if cond="TOOLKIT=='MSW'">wx/msw/glcanvas.h</if>
+ <if cond="TOOLKIT=='MOTIF'">wx/motif/glcanvas.h</if>
+ <if cond="TOOLKIT=='X11'">wx/x11/glcanvas.h</if>
+</set>
+