1 files changed, 22 insertions, 0 deletions
diff --git a/libbacktrace/btest.c b/libbacktrace/btest.c
index 5520699..1348d54 100644
--- a/libbacktrace/btest.c
+++ b/libbacktrace/btest.c
@@ -37,6 +37,7 @@ POSSIBILITY OF SUCH DAMAGE.  */
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
+#include <unistd.h>
 
 #include "filenames.h"
 
@@ -456,6 +457,25 @@ test5 (void)
   return failures;
 }
 
+/* Check that are no files left open.  */
+
+static void
+check_open_files (void)
+{
+  int i;
+
+  for (i = 3; i < 10; i++)
+    {
+      if (close (i) == 0)
+	{
+	  fprintf (stderr,
+		   "ERROR: descriptor %d still open after tests complete\n",
+		   i);
+	  ++failures;
+	}
+    }
+}
+
 /* Run all the tests.  */
 
 int
@@ -474,5 +494,7 @@ main (int argc ATTRIBUTE_UNUSED, char **argv)
 #endif
 #endif
 
+  check_open_files ();
+
   exit (failures ? EXIT_FAILURE : EXIT_SUCCESS);
 }