commit 86140c6223b5d14d773cf3050ffd0d14977c2c2d
Author: Joseph Myers <joseph@codesourcery.com>
Date:   Wed Feb 13 13:34:24 2019 +0000

    Avoid fall-through in test-container if execlp fails.
    
    One of the implicit-fallthrough warnings from compiling glibc with
    -Wextra appears to indicate an actual bug: the test-container code
    could fall through inappropriately if execlp returns (which only
    occurs on error).  This patch adds appropriate error handling in this
    case to avoid that fall-through.
    
    Tested for x86_64.
    
            * support/test-container.c (recursive_remove): Use FAIL_EXIT1 if
            execlp returns.

diff --git a/support/test-container.c b/support/test-container.c
index 1d1aebeaf3412573..f0d9e3060e80bda5 100644
--- a/support/test-container.c
+++ b/support/test-container.c
@@ -361,6 +361,7 @@ recursive_remove (char *path)
   case 0:
     /* Child.  */
     execlp ("rm", "rm", "-rf", path, NULL);
+    FAIL_EXIT1 ("exec rm: %m");
   default:
     /* Parent.  */
     waitpid (child, &status, 0);