Macosx: this patch ensures that the value of MACOSX_DEPLOYMENT_TARGET used
by the Makefile is also used at configure-time.
diff --git a/configure b/configure
index 0e1b526..4518c7d 100755
--- a/configure
+++ b/configure
@@ -1,5 +1,5 @@
 #! /bin/sh
-# From configure.in Revision: 57279 .
+# From configure.in Revision: 57762 .
 # Guess values for system-dependent variables and create Makefiles.
 # Generated by GNU Autoconf 2.61 for python 2.6.
 #
@@ -12033,6 +12033,14 @@
 			cur_target=10.3
 		fi
 		CONFIGURE_MACOSX_DEPLOYMENT_TARGET=${MACOSX_DEPLOYMENT_TARGET-${cur_target}}
+
+		# Make sure that MACOSX_DEPLOYMENT_TARGET is set in the
+		# environment with a value that is the same as what we'll use
+		# in the Makefile to ensure that we'll get the same compiler
+		# environment during configure and build time.
+		MACOSX_DEPLOYMENT_TARGET="$CONFIGURE_MACOSX_DEPLOYMENT_TARGET"
+		export MACOSX_DEPLOYMENT_TARGET
+
 		EXPORT_MACOSX_DEPLOYMENT_TARGET=''
 		if test ${MACOSX_DEPLOYMENT_TARGET-${cur_target}} '>' 10.2
 		then