c++ - Make a simple makefile generic -

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i have simple makefile me compile examples: 

   ex104: ex104.cpp         $(cpp) ex104.cpp $(incs) $(linkflags) $(compileflags) -o ex104       clean:            rm -f *.o $(executable)

now, works fine. problem is: need explicitly write rule each of examples, copying following line many, many times:

   ex104: ex104.cpp         $(cpp) ex104.cpp $(incs) $(linkflags) $(compileflags) -o ex104

is there way generic-ize bit? end command line below build ex252 ex252.cpp built automatically:

make ex252

fortunately, it's template-only library, have build 1 cpp file, , not need keep track of object files.

make has bunch of default rules , want should works if instead of variables using default 1 flags given.

if version of make not have such default, should add 1 (it correspond gnu make default rule intermediary variables inlined , obsolete 1 removed) :

.cpp:     $(cxx) $(cxxflags) $(cppflags) $(ldflags) $(target_arch) $^ $(ldlibs) -o $@

cxx c++ compiler

cxxflags flags c++ compiler

cppflags flags preprocessor (they common between c , c++ in gnu make)

ldflags flags linking

target_arch allows specify target architecture

ldlibs libraries link


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