my own PDF routines to replace Panda.

pdf_util.h

@@ -0,0 +1,11 @@
+void pdf_fatal (char *fmt, ...);
+
+void *pdf_calloc (long int size);
+
+char *pdf_strdup (char *s);
+
+#define pdf_assert(cond) do \
+    { \
+      if (! (cond)) \
+        pdf_fatal ("assert at %s(%d)\n", __FILE__, __LINE__); \
+    } while (0)