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    <p>Thanks to @Jonathan Wakely to provide me some starting ideas for this solution.</p> <p>There are probably a lot of thing that may be improved, but it work.</p> <p>Requirment summary:</p> <ul> <li>Makefiles should be standalone</li> <li>The main makefile should include sub-makefiles</li> <li>No conflicts or path problem shouls appear.</li> </ul> <p>A simple solution is to call recursively makefiles:</p> <ul> <li>Create a "normal" script for leaf makefiles</li> <li>Using an <strong>empty target</strong> allow to execute always make calls for example "sub-make:" without any requirment after ":"</li> <li>Use the "<strong>-C</strong>" parameter to set the root directory for the make call.</li> <li>Create the final linking with binaries created by sub-makefiles.</li> </ul> <p>Example for the main makefile:</p> <pre><code>#all make recursive calls sub-make: make -C Vector3D make -C Color #final linking CPP = g++ FLAGS = $(CXXINCS) -Wall -O0 all: main main: main.o Vector3D/Vector3D.o Color/Color.o $(CPP) main.o Vector3D/Vector3D.o Color/Color.o -o main main.o: main.cpp $(CPP) -c main.cpp -o main.o $(FLAGS) </code></pre> <p>There is probably a better way to provide *.o binaries to the linker without writting all full path, but that is another problem.</p> <p>Creating the clean target. For leaf makefiles, there si no special considerations to take, but for the main makefile, it must call sub-clean rules.</p> <pre><code>clean: make -C Vector3D clean make -C Color clean rm -f *.o main </code></pre> <p><strong>EDITING:</strong></p> <p>Here is the makefile structure I have done, for if it may be useful to anyone.</p> <p>To work, All classes must be in is own folder with:</p> <ul> <li>.hpp header</li> <li>.cpp code</li> <li>main.cpp for testing</li> <li>Required classes (LIBS) directory are specified with "$(LIBSPATH)LibName" in relation to this makefile.</li> </ul> <p>Makefile</p> <pre><code>#Following configuration may be set with a parameter: # e.g: make FLAGS="-Wall -O0" FLAGS = $(CXXINCS) -Wall -O0 #Configurable variables EXEC = main CLASS = World LIBS = Color Vector3D Triangle LIBSPATH = ../ #Static content CPP = g++ OBJS = $(foreach dir, $(LIBS), $(LIBSPATH)$(dir)/$(dir)) all: $(EXEC) clean: rm -f *.o $(EXEC) $(foreach dir,$(LIBS),make clean --no-print-directory -C $(LIBSPATH)$(dir);) $(EXEC): $(CLASS).o $(EXEC).o $(OBJS:=.o) $(CPP) $(CLASS).o $(OBJS:=.o) $(EXEC).o -o $(EXEC) $(EXEC).o: $(EXEC).cpp $(CPP) -c $(EXEC).cpp -o $(EXEC).o $(CXXFLAGS) $(CLASS).o: $(CLASS).cpp $(CLASS).hpp $(CPP) -c $(CLASS).cpp -o $(CLASS).o $(CXXFLAGS) $(OBJS:=.o): $(OBJS:=.cpp) $(OBJS:=.hpp) make --no-print-directory -C $(LIBSPATH)$(strip $(foreach dir,$(LIBS),$(if $(findstring $(dir),$@),$(dir)))) </code></pre>
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    1. POHow to include a makefile into an other makefile?
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    1. USAdrian Maire
    1. USAdrian Maire
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