From c784745b0e118586be279ec0d73b855f3711739d Mon Sep 17 00:00:00 2001
From: Jürgen Knödlseder <jurgen.knodlseder@irap.omp.eu>
Date: Wed, 6 Jan 2016 01:08:38 +0100
Subject: [PATCH] Add Mavericks check to set MACOSX_DEPLOYMENT_TARGET if Python has been compiled for an older target.

---
 configure.ac | 51 +++++++++++++++++++++++++++++++++++++++++----------
 1 file changed, 41 insertions(+), 10 deletions(-)

diff --git a/configure.ac b/configure.ac
index 417989d..8d2ec55 100644
--- a/configure.ac
+++ b/configure.ac
@@ -2,7 +2,7 @@
 # Configuration for ctools - a set of tools for science analysis of CTA     #
 #                            data                                           #
 # ------------------------------------------------------------------------- #
-# Copyright (C) 2011-2015 Juergen Knoedlseder                               #
+# Copyright (C) 2011-2016 Juergen Knoedlseder                               #
 # ------------------------------------------------------------------------- #
 #                                                                           #
 #  This program is free software: you can redistribute it and/or modify     #
@@ -93,10 +93,12 @@ AC_CANONICAL_HOST
 # A special kluge was added for Mac OS X >=10.7. As Apple switched to clang #
 # we search from this version on for the clang compiler.                    #
 #                                                                           #
-# We also signal whether Mac OS X >=10.11 (El Capitan).                     #
+# We also signal whether Mac OS X >=10.9 (Mavericks) and Mac OS X >=10.11   #
+# (El Capitan).                                                             #
 #############################################################################
 # Set default Mac OS X version flags
 osx_lion=no
+osx_mavericks=no
 osx_el_capitan=no
 
 # Set default compiler lists
@@ -111,6 +113,9 @@ if test `uname -s` = "Darwin"; then
     cc_list="clang gcc cc cl.exe"
     osx_lion=yes
   fi
+  if [ test $version -ge 109 ]; then
+    osx_mavericks=yes
+  fi
   if [ test $version -ge 1011 ]; then
     osx_el_capitan=yes
   fi
@@ -121,6 +126,12 @@ if [test "x$osx_lion" = "xyes"]; then
 else
         AC_MSG_RESULT(no)
 fi
+AC_MSG_CHECKING([for Mac OS X >= 10.9])
+if [test "x$osx_mavericks" = "xyes"]; then
+        AC_MSG_RESULT(yes)
+else
+        AC_MSG_RESULT(no)
+fi
 AC_MSG_CHECKING([for Mac OS X >= 10.11])
 if [test "x$osx_el_capitan" = "xyes"]; then
         AC_MSG_RESULT(yes)
@@ -633,21 +644,41 @@ else
 
     # If we have distutils then get python path from distutils ...
     if test -z "$ac_distutils_result"; then
-      if test ${PYTHON_VERSION} '<' 3; then
-        python_path=`$PYTHON -c "import distutils.sysconfig; \
-                                 print distutils.sysconfig.get_python_inc();"`
-      else
-        python_path=`$PYTHON -c "import distutils.sysconfig; \
-                                 print(distutils.sysconfig.get_python_inc());"`
-      fi                                         
+      python_path=`$PYTHON -c "import distutils.sysconfig; \
+                               print(distutils.sysconfig.get_python_inc());"`
       if test -n "${python_path}"; then
         AC_CHECK_HEADERS($python_path/Python.h, [has_python_h="yes"], [has_python_h="no"]) 
         python_path="-I$python_path"
       fi
       PYTHON_CPPFLAGS=$python_path
-      CPPFLAGS="${CPPFLAGS} ${python_path}"
       AC_SUBST([PYTHON_CPPFLAGS])
 
+      # If we have Mavericks then get the MACOSX_DEPLOYMENT_TARGET from Python
+      # If the target is older then Mavericks then set the MACOSX_DEPLOYMENT_TARGET
+      # to this value as otherwise we get trouble with name mangling (that changed)
+      if [test "x$osx_mavericks" = "xyes"]; then
+        AC_MSG_CHECKING([Python MACOSX_DEPLOYMENT_TARGET])
+        python_target=`$PYTHON -c "from distutils import sysconfig; \
+                                   print(sysconfig.get_config_vars()[['MACOSX_DEPLOYMENT_TARGET']]);" 2> /dev/null`
+        python_compact_target=`echo $python_target | sed 's/\(10\.[[0-9]]*\).*/\1/' | sed -e 's/\.//g'`
+        case $python_compact_target in
+          (*[!0-9]*|'')
+            AC_MSG_RESULT(unknown)
+            ;;
+          (*)
+            AC_MSG_RESULT(${python_target})
+            if [ test $python_compact_target -le 108 ]; then
+              CONFIGURE_MACOSX_DEPLOYMENT_TARGET="$python_target"
+              MACOSX_DEPLOYMENT_TARGET="$python_target"
+              export MACOSX_DEPLOYMENT_TARGET
+              EXPORT_MACOSX_DEPLOYMENT_TARGET=''
+              LIBS="${LIBS} -lstdc++"
+              AC_MSG_NOTICE([set MACOSX_DEPLOYMENT_TARGET to ${python_target}])
+            fi
+            ;;
+        esac
+      fi
+
     # ... otherwise check for includes relative to exectuable (obsolete?)
     else                             
                              
--
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