Director shared_ptr typemaps for scripting languages

Modify the Python and Ruby director shared_ptr typemaps to be language neutral.
Port the director modifications to other scripting languages that
have shared_ptr support - Octave, R and Scilab. Scilab shared_ptr
support is not fully working and needs work though.

Examples/test-suite/common.mk

@@ -263,9 +263,10 @@ CPP_TEST_CASES += \
 	li_attribute \
 	li_attribute_template \
 	li_boost_shared_ptr \
-	li_boost_shared_ptr_bits \
-	li_boost_shared_ptr_template \
 	li_boost_shared_ptr_attribute \
+	li_boost_shared_ptr_bits \
+	li_boost_shared_ptr_director \
+	li_boost_shared_ptr_template \
 	li_carrays_cpp \
 	li_cdata_cpp \
 	li_cpointer_cpp \

Examples/test-suite/li_boost_shared_ptr_director.i

@@ -4,7 +4,13 @@
 #include <boost/shared_ptr.hpp>
 %}
 
-%include "boost_shared_ptr.i";
+#if defined(SWIGPYTHON) || defined(SWIGOCTAVE) || defined(SWIGRUBY) || defined(SWIGR)
+#define SHARED_PTR_WRAPPERS_IMPLEMENTED
+#endif
+
+#if defined(SHARED_PTR_WRAPPERS_IMPLEMENTED)
+
+%include <boost_shared_ptr.i>
 %shared_ptr(C);
 %feature("director") Base;
 
@@ -117,3 +123,5 @@ int call_take_c_shared_ptr_by_pointer_ref_with_null(Base* b) {
 }
 
 %}
+
+#endif

Examples/test-suite/ruby/Makefile.in

@@ -11,7 +11,6 @@ top_srcdir   = @top_srcdir@
 top_builddir = @top_builddir@
 
 CPP_TEST_CASES = \
-	li_boost_shared_ptr_director \
 	li_cstring \
 	li_factory \
 	li_std_functors \