Apply rust-lang/rust@8581b59

alexcrichton · alexcrichton · commit 7845b4ecc7e8 · 2018-05-22T12:56:59.000-07:00
diff --git 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
@@ -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
