1 files changed, 6 insertions, 1 deletions
diff --git a/elf/filter.c b/elf/filter.c
index 76bc91adc5..46aa15ba16 100644
--- a/elf/filter.c
+++ b/elf/filter.c
@@ -1,3 +1,4 @@
+#include <mcheck.h>
 #include <stdio.h>
 #include <string.h>
 
@@ -6,7 +7,11 @@ extern const char *foo (void);
 int
 main (void)
 {
-  const char *s = foo ();
+  const char *s;
+
+  mtrace ();
+
+  s = foo ();
 
   printf ("called `foo' from `%s'\n", s);