Squashed 'third_party/elfutils/' content from commit 555e15e

Change-Id: I61cde98949e47e5c8c09c33260de17f30921be79
git-subtree-dir: third_party/elfutils
git-subtree-split: 555e15ebe8bf1eb33d00747173cfc80cc65648a4
diff --git a/tests/system-elf-libelf-test.c b/tests/system-elf-libelf-test.c
new file mode 100644
index 0000000..7dfe498
--- /dev/null
+++ b/tests/system-elf-libelf-test.c
@@ -0,0 +1,35 @@
+/* Explicit test compiling with system elf.h header plus libelf header.
+
+   Copyright (C) 2016 Red Hat, Inc.
+   This file is part of elfutils.
+
+   This file is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 3 of the License, or
+   (at your option) any later version.
+
+   elfutils 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 General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program.  If not, see <http://www.gnu.org/licenses/>.  */
+
+#include <elf.h>
+#include <stddef.h>
+#include "../libelf/libelf.h"
+
+int
+main (void)
+{
+  /* Trivial test, this is really a compile test anyway.  */
+  if (elf_version (EV_CURRENT) == EV_NONE)
+    return -1;
+
+  /* This will obviously fail. It is just to check that Elf32_Chdr and
+     elf32_getchdr are available (both at compile time and runtime).  */
+  Elf32_Chdr *chdr = elf32_getchdr (NULL);
+
+  return chdr == NULL ? 0 : -1;
+}