Add substation-opensource (#163)

* WIP: Add Substation Open Source release (broken)

* Update upstream

Co-authored-by: Simon-L <lumis@xulepth.fr>

plugins/Makefile

@@ -622,6 +622,16 @@ REPELZEN_CUSTOM = Blank Mixer Werner tanh_pade
 
 PLUGIN_FILES += $(filter-out sonusmodular/src/sonusmodular,$(wildcard sonusmodular/src/*.cpp))
 
+# --------------------------------------------------------------
+# Substation (Open source release)
+
+PLUGIN_FILES += $(wildcard substation-opensource/dep/slime4rack/src/slime/*.cpp)
+PLUGIN_FILES += $(wildcard substation-opensource/dep/slime4rack/src/slime/**/*.cpp)
+PLUGIN_FILES += $(filter-out substation-opensource/src/_plugin.cpp,$(wildcard substation-opensource/src/*.cpp))
+
+# modules/types which are present in other plugins
+SUBSTATION_CUSTOM = Clock Mixer Quantizer VCA init
+
 # --------------------------------------------------------------
 # ValleyAudio
 
@@ -1400,6 +1410,16 @@ $(BUILD_DIR)/sonusmodular/%.cpp.o: sonusmodular/%.cpp
 		$(foreach m,$(SONUSMODULAR_CUSTOM),$(call custom_module_names,$(m),sonusmodular)) \
 		-DpluginInstance=pluginInstance__sonusmodular
 
+$(BUILD_DIR)/substation-opensource/%.cpp.o: substation-opensource/%.cpp
+	-@mkdir -p "$(shell dirname $(BUILD_DIR)/$<)"
+	@echo "Compiling $<"
+	$(SILENT)$(CXX) $< $(BUILD_CXX_FLAGS) -c -o $@ \
+		$(foreach m,$(SUBSTATION_CUSTOM),$(call custom_module_names,$(m),substation)) \
+		-DpluginInstance=pluginInstance__substation \
+		-D'PRIVATE=__attribute__((error("Using internal Rack function or symbol")))' \
+		-Werror \
+		-Isubstation-opensource/dep/slime4rack/include
+
 $(BUILD_DIR)/ValleyAudio/%.cpp.o: ValleyAudio/%.cpp
 	-@mkdir -p "$(shell dirname $(BUILD_DIR)/$<)"
 	@echo "Compiling $<"