added missing config.h includes for extended LFS support

All sources which might work with large files must include config.h,
to get Large File Support on 32 bit platforms.

src/archive_api.c

@@ -17,6 +17,9 @@
  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  */
 
+#include "config.h" /* must be first for large file support */
+#include "archive_api.h"
+
 #include <stdio.h>
 
 #include <string.h>
@@ -26,8 +29,6 @@
 #include <errno.h>
 #include <glib.h>
 
-#include "archive_api.h"
-
 /**
  *
  * archive_lookup is used to determine if part of pathname refers to an regular