Use different capsule names with and without -builtin

Types generated with and without -builtin are not compatible. Mixing
them in a common type list leads to crashes. Avoid this by using
different capsule names: "type_pointer_capsule" without -builtin and
"type_pointer_capsule_builtin" with.

See #1684

Examples/test-suite/python/Makefile.in

@@ -93,6 +93,9 @@ C_TEST_CASES += \
 	python_nondynamic \
 	python_varargs_typemap \
 
+MULTI_CPP_TEST_CASES += \
+	python_runtime_data \
+
 include $(srcdir)/../common.mk
 
 # Overridden variables here
@@ -102,6 +105,10 @@ VALGRIND_OPT += --suppressions=pythonswig.supp
 # Custom tests - tests with additional commandline options
 #python_flatstaticmethod.cpptest: SWIGOPT += -flatstaticmethod
 
+python_runtime_data.multicpptest: override SWIG_FEATURES := $(filter-out -builtin,$(SWIG_FEATURES))
+python_runtime_data.multicpptest: override SWIGOPT := $(filter-out -builtin,$(SWIGOPT))
+python_runtime_data.multicpptest: export SWIGOPT_python_runtime_data_builtin = $(SWIGOPT) -builtin
+
 # Rules for the different types of tests
 %.cpptest:
 	$(setup)
@@ -149,7 +156,7 @@ clean:
 	rm -f hugemod.h hugemod_a.i hugemod_b.i hugemod_a.py hugemod_b.py hugemod_runme.py
 	rm -f imports_a.py imports_b.py mod_a.py mod_b.py multi_import_a.py
 	rm -f multi_import_b.py multi_import_d.py packageoption_a.py packageoption_b.py packageoption_c.py
-	rm -f template_typedef_cplx2.py
+	rm -f template_typedef_cplx2.py python_runtime_data_builtin.py python_runtime_data_nobuiltin.py
 
 hugemod_runme = hugemod$(SCRIPTPREFIX)
 

Examples/test-suite/python/python_runtime_data_runme.py

@@ -0,0 +1,11 @@
+import python_runtime_data_builtin as builtin
+import python_runtime_data_nobuiltin as nobuiltin
+
+assert builtin.is_python_builtin()
+assert not nobuiltin.is_python_builtin()
+
+for i in range(1, 5):
+    v1 = builtin.vectord([1.] * i)
+    assert len(v1) == i
+    v2 = nobuiltin.vectord([1.] * i)
+    assert len(v2) == i