From 7845b4ecc7e8a6856ea42bb0f1f6bfcdbb8926ca Mon Sep 17 00:00:00 2001
From: Alex Crichton <alex@alexcrichton.com>
Date: Tue, 22 May 2018 12:56:59 -0700
Subject: [PATCH] Apply rust-lang/rust@8581b59fb39b0072665de59b1a70e708b251d4b0

---
 configure    | 6 ++++++
 configure.ac | 6 ++++++
 2 files changed, 12 insertions(+)

diff --git a/configure b/configure
index 108a67f..b984f5f 100755
--- a/configure
+++ b/configure
@@ -11557,6 +11557,12 @@ fi
 
   fi
 fi
+
+case "${host_os}" in
+darwin*)
+  have_mmap=no ;;
+esac
+
 if test "$have_mmap" = "no"; then
   VIEW_FILE=read.lo
   ALLOC_FILE=alloc.lo
diff --git a/configure.ac b/configure.ac
index e85fe98..b9056cc 100644
--- a/configure.ac
+++ b/configure.ac
@@ -295,6 +295,12 @@ else
     AC_CHECK_FUNC(mmap, [have_mmap=yes], [have_mmap=no])
   fi
 fi
+
+case "${host_os}" in
+darwin*)
+  have_mmap=no ;;
+esac
+
 if test "$have_mmap" = "no"; then
   VIEW_FILE=read.lo
   ALLOC_FILE=alloc.lo