3 files changed, 3 insertions, 5 deletions
diff --git a/include/fitz/base.h b/include/fitz/base.h
index 4741f297..da0132d4 100644
--- a/include/fitz/base.h
+++ b/include/fitz/base.h
@@ -37,7 +37,7 @@ extern fz_error fz_koutofmem;
 
 #ifdef WIN32
 #define fz_throw(...) fz_throw0(__FUNCTION__, __FILE__, __LINE__, __VA_ARGS__)
-#elif _ISOC99_SOURCE
+#elif HAVE_C99
 #define fz_throw(...) fz_throw0(__func__, __FILE__, __LINE__, __VA_ARGS__)
 #else
 #define fz_throw fz_throw1
diff --git a/include/fitz/render.h b/include/fitz/render.h
index 53030a9c..05b7daaf 100644
--- a/include/fitz/render.h
+++ b/include/fitz/render.h
@@ -1,14 +1,11 @@
 typedef struct fz_renderer_s fz_renderer;
 
-enum { FZ_RNONE, FZ_ROVER, FZ_RMASK };
-
 struct fz_renderer_s
 {
     fz_colorspace *model;
     fz_glyphcache *cache;
     fz_gel *gel;
     fz_ael *ael;
-    int mode;
     fz_irect clip;
     fz_pixmap *tmp;
     fz_pixmap *acc;
diff --git a/include/fitz/tree.h b/include/fitz/tree.h
index eebf2c38..57175619 100644
--- a/include/fitz/tree.h
+++ b/include/fitz/tree.h
@@ -76,7 +76,8 @@ struct fz_node_s
 {
 	fz_nodekind kind;
 	fz_node *parent;
-	fz_node *child;
+	fz_node *first;
+	fz_node *last;
 	fz_node *next;
 };