From 6b5c10c4f80cd4a741f3e378a3a42f3ed1741d49 Mon Sep 17 00:00:00 2001
From: Eli Zaretskii <eliz@gnu.org>
Date: Thu, 19 Jul 2018 16:54:06 +0300
Subject: [PATCH] Fix GDB build using mingw.org's MinGW

libiberty/
2018-07-18  Eli Zaretskii  <eliz@gnu.org>

	PR gdb/23434
	* libiberty/simple-object-elf.c (ENOTSUP): If not defined by
        errno.h, redirect ENOTSUP to ENOSYS.

(cherry picked from commit db3410f80f793189d3c8afb8b80951333d3fe007)
---
 libiberty/ChangeLog           | 6 ++++++
 libiberty/simple-object-elf.c | 4 ++++
 2 files changed, 10 insertions(+)

diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog
index c944f9e..cde8bf7 100644
--- a/libiberty/ChangeLog
+++ b/libiberty/ChangeLog
@@ -1,3 +1,9 @@
+2018-07-18  Eli Zaretskii  <eliz@gnu.org>
+
+	PR gdb/23434
+	* libiberty/simple-object-elf.c (ENOTSUP): If not defined by
+        errno.h, redirect ENOTSUP to ENOSYS.
+
 2018-06-19  Simon Marchi  <simon.marchi@ericsson.com>
 
 	* configure.ac: Remove AC_PREREQ.
diff --git a/libiberty/simple-object-elf.c b/libiberty/simple-object-elf.c
index 7468a1a..021ce48 100644
--- a/libiberty/simple-object-elf.c
+++ b/libiberty/simple-object-elf.c
@@ -22,6 +22,10 @@ Boston, MA 02110-1301, USA.  */
 #include "simple-object.h"
 
 #include <errno.h>
+/* mingw.org's MinGW doesn't have ENOTSUP.  */
+#ifndef ENOTSUP
+# define ENOTSUP ENOSYS
+#endif
 #include <stddef.h>
 
 #ifdef HAVE_STDLIB_H
-- 
2.7.4