The GtkRadiant sources as originally released under the GPL license.

plugins/config.mk

@@ -0,0 +1,32 @@
+# Common configuration options for all plugins
+
+CC=gcc
+CXX=g++
+CFLAGS+=`gtk-config --cflags` -Wall -g -I../../include
+CPPFLAGS+=`gtk-config --cflags` -Wall -g -I../../include
+LDFLAGS+=`gtk-config --libs` -shared
+OUTDIR=$(RADIANT_DATA)plugins
+OBJS := $(patsubst %.cpp,%.o,$(filter %.cpp,$(SRC)))
+OBJS += $(patsubst %.c,%.o,$(filter %.c,$(SRC)))
+
+all: $(OUTPUT)
+
+$(OUTPUT): $(OBJS)
+	$(CXX) -o $(OUTPUT) $(OBJS) $(LDFLAGS)
+	@if [ -d $(OUTDIR) ]; then cp $(OUTPUT) $(OUTDIR); fi
+
+## Other targets
+.PHONY: clean
+
+clean:
+	rm -f *.o *.d $(OUTPUT) core
+
+## Dependencies
+-include $(OBJS:.o=.d)
+
+%.d: %.cpp
+	@echo -n "$(@) " > $@
+	@if { !(eval $(CXX) -MM $(CPPFLAGS) -w $<) >> $@; }; then \
+	  rm -f $@; exit 1; \
+	fi
+	@[ -s $@ ] || rm -f $@