issue #5658, different fix

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@7041 65c4cc65-6c06-0410-ace0-fbb531ad65f3

ChangeLog

 2005-11-08  Kevin P. Fleming  <kpfleming@digium.com>
 
+	* include/asterisk/file.h: add test to ensure that stdio.h is included before this file (issue #5658)
+
 	* res/res_odbc.c (odbc_prepare_and_execute): add new API call for use to properly handle prepared statements across server disconnects (issue #5563)
 
 	* pbx.c (pbx_substitute_variables_helper_full): use already-substituted buffer for parsing variable name (issue #5664)

include/asterisk/file.h

@@ -23,6 +23,10 @@
 #ifndef _ASTERISK_FILE_H
 #define _ASTERISK_FILE_H
 
+#ifndef stdin
+#error You must include stdio.h before file.h!
+#endif /* !stdin */
+
 #include "asterisk/channel.h"
 #include "asterisk/frame.h"
 #include <fcntl.h>