Patch to backport upstream commit so Open Babel 2.3.2 can support libc++ on OS X 10.9+

open-babel-mavericks.diff

From c3abbddae78e654df9322ad1020ff79dd6332946 Mon Sep 17 00:00:00 2001
From: Matt Swain <m.swain@me.com>
Date: Thu, 31 Oct 2013 15:25:53 +0000
Subject: [PATCH] Detect libc++ as this is now the default in OS X Mavericks

---
 include/openbabel/obmolecformat.h |  7 ++++++-
 include/openbabel/shared_ptr.h    | 12 ++++++++++--
 src/ops/unique.cpp                |  8 ++++++--
 3 files changed, 22 insertions(+), 5 deletions(-)

diff --git a/include/openbabel/obmolecformat.h b/include/openbabel/obmolecformat.h
index 46ec724..c004313 100644
--- a/include/openbabel/obmolecformat.h
+++ b/include/openbabel/obmolecformat.h
@@ -23,7 +23,10 @@
   #include <hash_map>
 #endif
 
-#if __GNUC__ == 4 && __GNUC_MINOR__ >= 1
+#include <ciso646>  // detect std::lib
+#ifdef _LIBCPP_VERSION
+  #include <unordered_map>
+#elif __GNUC__ == 4 && __GNUC_MINOR__ >= 1
   #include <tr1/unordered_map>
 #elif defined(USE_BOOST)
   #include <boost/tr1/unordered_map.hpp>
@@ -141,6 +144,8 @@ class OBCOMMON OBMoleculeFormat : public OBFormat
 
 #ifdef _MSC_VER
   typedef stdext::hash_map<std::string, unsigned> NameIndexType;
+#elif defined(_LIBCPP_VERSION)
+  typedef std::unordered_map<std::string, unsigned> NameIndexType;
 #elif (__GNUC__ == 4 && __GNUC_MINOR__ >= 1 && !defined(__APPLE_CC__)) || defined (USE_BOOST)
   typedef std::tr1::unordered_map<std::string, unsigned> NameIndexType;
 #else
diff --git a/include/openbabel/shared_ptr.h b/include/openbabel/shared_ptr.h
index 5d20254..378856a 100644
--- a/include/openbabel/shared_ptr.h
+++ b/include/openbabel/shared_ptr.h
@@ -22,9 +22,17 @@ GNU General Public License for more details.
 #else
   #include <memory>
   #if __GNUC__ == 4  //&& __GNUC_MINOR__ < 3  removed at the suggestion of Konstantin Tokarev
-    #include <tr1/memory>
+    #ifdef _LIBCPP_VERSION
+      #include <memory>
+    #else
+      #include <tr1/memory>
+    #endif
+  #endif
+  #ifdef _LIBCPP_VERSION
+    using std::shared_ptr;
+  #else
+    using std::tr1::shared_ptr;
   #endif
-  using std::tr1::shared_ptr;
 #endif
 
 #endif // OB_SHARED_PTR_H
diff --git a/src/ops/unique.cpp b/src/ops/unique.cpp
index 5f7714f..8527fba 100644
--- a/src/ops/unique.cpp
+++ b/src/ops/unique.cpp
@@ -21,7 +21,7 @@
 #include <openbabel/obconversion.h>
 #include <openbabel/descriptor.h>
 #include <openbabel/inchiformat.h>
-#ifdef _MSC_VER
+#if defined(_MSC_VER) || defined(_LIBCPP_VERSION)
   #include <unordered_map>
 #elif (__GNUC__ == 4 && __GNUC_MINOR__ >= 1 && !defined(__APPLE_CC__))
   #include <tr1/unordered_map>
@@ -36,7 +36,11 @@
 
 using namespace std;
 #ifndef NO_UNORDERED_MAP
-using std::tr1::unordered_map;
+  #ifdef _LIBCPP_VERSION
+    using std::unordered_map;
+  #else
+    using std::tr1::unordered_map;
+  #endif
 #endif
 namespace OpenBabel
 {
--