[binutils-gdb] Fix GDB build using mingw.org's MinGW

[Eli Zaretskii]

https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=db3410f80f793189d3c8afb8b80951333d3fe007

commit db3410f80f793189d3c8afb8b80951333d3fe007
Author: Eli Zaretskii <eliz@gnu.org>
Date:   Thu Jul 19 16:54:06 2018 +0300

    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.

Diff:
---
 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