[coreutils] [PATCH] tsort: suppress a valgrind memory leak warning

[Pádraig Brady]

This is the only "definitely lost" warning left
from valgrind --tool=memcheck.

commit c8b88772b61ffb3d9f73fc6b9985ec7b35495f87
Author: Pádraig Brady <address@hidden>
Date:   Thu Nov 25 19:16:00 2010 +0000

    tsort: suppress a valgrind memory leak warning

    * src/tsort.c (tsort): Unconditionally invoking the free()
    doesn't increase scalability, so do it only with -Dlint

diff --git a/src/tsort.c b/src/tsort.c
index 4f51f30..b27cdfa 100644
--- a/src/tsort.c
+++ b/src/tsort.c
@@ -487,6 +487,10 @@ tsort (const char *file)

           /* T5. Output front of queue.  */
           puts (head->str);
+#ifdef lint
+          /* suppress valgrind "definitely lost" warnings.  */
+          free ((void *) head->str);
+#endif
           head->str = NULL;    /* Avoid printing the same string twice.  */
           n_strings--;