diff --git a/src/Makefile.am b/src/Makefile.am
index 2a4d483..e5f9213 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -1,5 +1,9 @@
 ## Process this file with automake to produce Makefile.in
 
+# Darwin support
+MACOSX_DEPLOYMENT_TARGET=@CONFIGURE_MACOSX_DEPLOYMENT_TARGET@
+export MACOSX_DEPLOYMENT_TARGET
+
 # Set sub directories
 SUBDIRS = ctselect \
           ctbin \
diff --git a/test/Makefile.am b/test/Makefile.am
index f8b44d5..92c8da9 100644
--- a/test/Makefile.am
+++ b/test/Makefile.am
@@ -1,5 +1,9 @@
 ## Process this file with automake to produce Makefile.in
 
+# Darwin support
+MACOSX_DEPLOYMENT_TARGET=@CONFIGURE_MACOSX_DEPLOYMENT_TARGET@
+export MACOSX_DEPLOYMENT_TARGET
+
 # Optional python bindings
 if WITH_PYTHON
   TEST_CSCRIPTS      = test_cscripts.sh