Synchronize support/ infrastructure with master

This commit updates the support/ subdirectory to
commit 2714c5f3c95f90977167c1d21326d907fb76b419
on the master branch and modifies Makeconfig,
Rules, and extra-lib.mk accordingly.

(cherry picked from commit 4c5785aa129a5d195fc1cd5c7fcd6f62c2b0ff0c)

Reviewed-by: Carlos O'Donell <carlos@redhat.com>

1 files changed, 33 insertions, 0 deletions

diff --git a/support/xfclose.c b/support/xfclose.c
new file mode 100644
index 0000000000..2737f05044
--- /dev/null
+++ b/support/xfclose.c
@@ -0,0 +1,33 @@
+/* fclose with error checking.
+   Copyright (C) 2016-2017 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <support/xstdio.h>
+
+#include <support/check.h>
+#include <stdlib.h>
+
+void
+xfclose (FILE *fp)
+{
+  if (ferror (fp))
+    FAIL_EXIT1 ("stdio stream closed with pending errors");
+  if (fflush (fp) != 0)
+    FAIL_EXIT1 ("fflush: %m");
+  if (fclose (fp) != 0)
+    FAIL_EXIT1 ("fclose: %m");
+}