Add .so phase to Makefile and Generator

Author: jerrymarino

Makefile

@@ -51,6 +51,10 @@ build_impl:
 	@swift build -c $(CONFIG) $(SWIFT_OPTS) \
 	  	-Xswiftc "-target"  -Xswiftc "x86_64-apple-macosx10.12" \
 	   	| tee $(LAST_LOG)
+	@clang -g \
+		-Xlinker $(PYTHON_LINKED_LIB) \
+		-Xlinker $(PWD)/.build/$(CONFIG)/lib$(PLUGIN_NAME).dylib \
+		-shared -o .build/$(PLUGIN_NAME).so
 
 # Running tests with custom versions of Python
 # USE_PYTHON=/usr/local/Cellar/python/3.6.4_4/Frameworks/Python.framework/Versions/3.6/Python make test 

PluginGenerator/Makefile.tpl

@@ -46,6 +46,10 @@ build_impl:
 	@swift build -c $(CONFIG) $(SWIFT_OPTS) \
 	  	-Xswiftc "-target"  -Xswiftc "x86_64-apple-macosx10.12" \
 	   	| tee $(LAST_LOG)
+	@clang -g \
+		-Xlinker $(PYTHON_LINKED_LIB) \
+		-Xlinker $(PWD)/.build/$(CONFIG)/lib$(PLUGIN_NAME).dylib \
+		-shared -o .build/$(PLUGIN_NAME).so
 
 .PHONY: test
 test_b: CONFIG=debug