gnu make - Argh, makefile won't pick up dependencies correctly -

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my simple little makefile exhibiting behavior i'm not able understand. if touch source file except dictionary.cpp no targets built, , if touch dictionary.cpp compiles doesn't link. source files in src/ object (.o) , dependencies (.d) in obj/ , binary goes bin/

if rm obj/* builds ok timestamps don't seem being picked up. can tell me i'm going wrong?

the .d files seem being created correctly, here's dictionary.d:

obj/dictionary.o: src/dictionary.cpp src/pch.h src/types.h src/util.h \  src/refcount.h src/dictionary.h src/dictionary.cpp: src/pch.h: src/types.h: src/util.h: src/refcount.h: src/dictionary.h:

which looks correct me. here's makefile:

sources =   dictionary.cpp  \             util.cpp        \             tile.cpp        \             board.cpp       \             vec2.cpp        \             letter.cpp      \             random.cpp      \             server.cpp      \             main.cpp  objects = $(patsubst %.cpp,obj/%.o,$(sources)) depends = $(patsubst %.cpp,obj/%.d,$(sources))  cxx = g++ cppflags = -isrc -std=c++0x cxxflags = -c  -include $(depends)  bin/dictionary: $(objects)     @echo link...     $(cxx) $(cppflags) $(objects) -o bin/dictionary -lrt  obj/%.o: src/%.cpp     @echo [$*]     @$(cxx) $(cppflags) $(cxxflags) src/$*.cpp -o obj/$*.o     @$(cxx) $(cppflags) -mm src/$*.cpp -mf obj/$*.d     @mv -f obj/$*.d obj/$*.d.tmp     @sed -e 's|.*:|obj/$*.o:|' < obj/$*.d.tmp > obj/$*.d     @sed -e 's/.*://' -e 's/\\$$//' < obj/$*.d.tmp | fmt -1 | sed -e 's/^ *//' -e '    s/$$/:/' >> obj/$*.d     @rm -f obj/$*.d.tmp

you have move include end, or put bin/dictionary rule before it, or add all: bin/dictionary rule before include, or something.

or, resign running make bin/dictionary, work well.

remember make, default, tries build first target in makefile. because have include line before other target, first target defined included file considered default goal, , happens obj/dictionary.o.


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