change catalogentry to GPtrArray, documentation fixes, add ifdef wrapper to mdbsql.h

include/mdbsql.h

@@ -3,6 +3,9 @@
 #include <glib.h>
 #include <mdbtools.h>
 
+#ifndef _mdbsql_h_
+#define _mdbsql_h_
+
 typedef struct {
 	MdbHandle *mdb;
 	int all_columns;
@@ -55,3 +58,5 @@ void mdb_sql_exit(MdbSQL *sql);
 void mdb_sql_reset(MdbSQL *sql);
 void mdb_sql_listtables(MdbSQL *sql);
 void mdb_sql_select(MdbSQL *sql);
+
+#endif

include/mdbtools.h

@@ -103,7 +103,7 @@ typedef struct {
 	unsigned char pg_buf[MDB_PGSIZE];
 	unsigned char alt_pg_buf[MDB_PGSIZE];
 	int		num_catalog;
-	GArray		*catalog;
+	GPtrArray		*catalog;
 	int		pg_size;
 	guint32		jet_version;
 	guint32		db_key;