64bit time_t

Index: backend/plustek_pp.c
--- backend/plustek_pp.c.orig
+++ backend/plustek_pp.c
@@ -279,7 +279,7 @@ static SANE_Status drvclose( Plustek_Device *dev )
 	    DBG( _DBG_INFO, "drvclose()\n" );
 
 		if( 0 != tsecs ) {
-			DBG( _DBG_INFO, "TIME END 1: %lus\n", time(NULL)-tsecs);
+			DBG( _DBG_INFO, "TIME END 1: %llds\n", time(NULL)-tsecs);
 		}
 
 		/*
@@ -515,7 +515,7 @@ static SANE_Status do_cancel( Plustek_Scanner *scanner
 	drvclose( scanner->hw );
 
 	if( tsecs != 0 ) {
-		DBG( _DBG_INFO, "TIME END 2: %lus\n", time(NULL)-tsecs);
+		DBG( _DBG_INFO, "TIME END 2: %llds\n", time(NULL)-tsecs);
 		tsecs = 0;
 	}