From c640e2919372e032f7915645ead39a79d6121725 Mon Sep 17 00:00:00 2001
From: Bernhard Amann <bernhard@icsi.berkeley.edu>
Date: Thu, 24 Oct 2013 13:34:17 -0700
Subject: [PATCH] rework libc++ patch to use AvailabilityMacros.h instead of
 Availability.h

AvailabilityMacros.h was introduced in 10.2, Availability is only available in
10.5+ - this increases backwards compatibility.
---
 src/input/readers/Ascii.cc | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/src/input/readers/Ascii.cc b/src/input/readers/Ascii.cc
index 12d677742b..3229d75ed6 100644
--- a/src/input/readers/Ascii.cc
+++ b/src/input/readers/Ascii.cc
@@ -19,9 +19,11 @@
 
 #ifdef __clang__
 # ifdef __APPLE__
-#  include <Availability.h>
-#  ifdef __MAC_10_9
-#   define MAVERICKS_WORKAROUND
+#  include <AvailabilityMacros.h>
+#  ifdef __MAC_OS_X_VERSION_MAX_ALLOWED
+#   if __MAC_OS_X_VERSION_MAX_ALLOWED == 1090
+#    define MAVERICKS_WORKAROUND
+#   endif
 #  endif
 # endif
 #endif