minor build fix

git-svn-id: http://svn.clifford.at/openscad/trunk@368 b57f626f-c46c-0410-a088-ec61d464b74c

openscad.pro

@@ -77,6 +77,8 @@ HEADERS += src/CGAL_renderer.h \
            src/printutils.h \
            src/value.h
 
+macx: HEADERS += src/EventFilter.h
+
 SOURCES += src/openscad.cc \
            src/mainwin.cc \
            src/glview.cc \

src/parser.y

@@ -20,7 +20,10 @@
 
 %{
 
-#include "openscad.h"
+#include "module.h"
+#include "expression.h"
+#include "value.h"
+#include "function.h"
 #include "printutils.h"
 
 int parser_error_pos = -1;