From d39a3409acd3c40fb018ec1c114f15d3ecef6ef9 Mon Sep 17 00:00:00 2001
From: Sergei Trofimovich <slyfox@gentoo.org>
Date: Thu, 1 Jun 2017 22:30:05 +0100
Subject: [PATCH] aclocal.m4: add support for versioned darwin triplets

The change adds support for 'darwin*' OS:
    $ ./configure --target=aarch64-apple-darwin14

Reported-by: jp_rider
Signed-off-by: Sergei Trofimovich <slyfox@gentoo.org>
---
 aclocal.m4 | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/aclocal.m4 b/aclocal.m4
index 7ad9c36453..437974a0c7 100644
--- a/m4/fptools.m4
+++ b/m4/fptools.m4
@@ -1906,6 +1906,9 @@ AC_DEFUN([GHC_CONVERT_OS],[
       aix*) # e.g. powerpc-ibm-aix7.1.3.0
         $3="aix"
         ;;
+      darwin*) # e.g. aarch64-apple-darwin14
+        $3="darwin"
+        ;;
       freebsd*) # like i686-gentoo-freebsd7
                 #      i686-gentoo-freebsd8
                 #      i686-gentoo-freebsd8.2
-- 
2.14.1