diff --git a/test/custom_ccs/member_ccs.cpp b/test/custom_ccs/member_ccs.cpp
index 28e0c1a..727b38b 100644
--- a/test/custom_ccs/member_ccs.cpp
+++ b/test/custom_ccs/member_ccs.cpp
@@ -6,11 +6,17 @@
 
 //------------------------------------------------------------------------------
 
+#define BOOST_FT_AUTODETECT_CALLING_CONVENTIONS
+
 #include <boost/mpl/assert.hpp>
 #include <boost/mpl/vector.hpp>
 #include <boost/function_types/member_function_pointer.hpp>
 #include <boost/function_types/is_callable_builtin.hpp>
 
+#ifndef BOOST_FT_CC_STDCALL
+#   error "test not supported with this compiler"
+#endif
+
 namespace ft = boost::function_types;
 namespace mpl = boost::mpl;
 
diff --git a/test/custom_ccs/member_ccs_exact.cpp b/test/custom_ccs/member_ccs_exact.cpp
index 381f69f..2decf14 100644
--- a/test/custom_ccs/member_ccs_exact.cpp
+++ b/test/custom_ccs/member_ccs_exact.cpp
@@ -6,11 +6,17 @@
 
 //------------------------------------------------------------------------------
 
+#define BOOST_FT_AUTODETECT_CALLING_CONVENTIONS
+
 #include <boost/mpl/assert.hpp>
 #include <boost/mpl/vector.hpp>
 #include <boost/function_types/member_function_pointer.hpp>
 #include <boost/function_types/is_callable_builtin.hpp>
 
+#ifndef BOOST_FT_CC_STDCALL
+#   error "test not supported with this compiler"
+#endif
+
 namespace ft = boost::function_types;
 namespace mpl = boost::mpl;
 
diff --git a/test/custom_ccs/nonmember_ccs.cpp b/test/custom_ccs/nonmember_ccs.cpp
index 18a73ff..98bf3d5 100644
--- a/test/custom_ccs/nonmember_ccs.cpp
+++ b/test/custom_ccs/nonmember_ccs.cpp
@@ -6,6 +6,8 @@
 
 //------------------------------------------------------------------------------
 
+#define BOOST_FT_AUTODETECT_CALLING_CONVENTIONS
+
 #include <boost/mpl/assert.hpp>
 #include <boost/mpl/vector.hpp>
 #include <boost/function_types/function_type.hpp>
@@ -13,6 +15,10 @@
 #include <boost/function_types/function_reference.hpp>
 #include <boost/function_types/is_callable_builtin.hpp>
 
+#ifndef BOOST_FT_CC_STDCALL
+#   error "test not supported with this compiler"
+#endif
+
 namespace ft = boost::function_types;
 namespace mpl = boost::mpl;
 
diff --git a/test/custom_ccs/nonmember_ccs_exact.cpp b/test/custom_ccs/nonmember_ccs_exact.cpp
index 808ded3..31f73c0 100644
--- a/test/custom_ccs/nonmember_ccs_exact.cpp
+++ b/test/custom_ccs/nonmember_ccs_exact.cpp
@@ -6,6 +6,8 @@
 
 //------------------------------------------------------------------------------
 
+#define BOOST_FT_AUTODETECT_CALLING_CONVENTIONS
+
 #include <boost/mpl/assert.hpp>
 #include <boost/mpl/vector.hpp>
 #include <boost/function_types/function_type.hpp>
@@ -13,6 +15,10 @@
 #include <boost/function_types/function_reference.hpp>
 #include <boost/function_types/is_callable_builtin.hpp>
 
+#ifndef BOOST_FT_CC_STDCALL
+#   error "test not supported with this compiler"
+#endif
+
 namespace ft = boost::function_types;
 namespace mpl = boost::mpl;