Makefile

   1 MODULES := reader store alien typeregister textmodel fold typepath
   2
   3 # Add module directories to the include path
   4 CFLAGS += -I.
   5
   6 # Variables for the modules to write to
   7 SRCS := odcread.cc
   8
   9 # Include module definitions
  10 include $(patsubst %,%/Make.inc,$(MODULES))
  11
  12 # This rule just links the object files together
  13 odcread: $(SRCS:.cc=.o)
  14         g++ -o $@ $^
  15
  16 # This rule build an object (.o) from a source (.cc). It first builds a
  17 # dependency (.d) file which will ensure that the .o is rebuilt whenever the
  18 # header files included by the .cc are updated.
  19 # The options given to GCC for this are as follows:
  20 #  -MM : calculate dependencies, but exclude system headers
  21 #  -MF : output dependencies to the given file
  22 #  -MP : generate "header.h:" rules to avoid errors on deletion of headers
  23 #  -MT : the main rule has the given target (to handle subdirs correctly)
  24 # The .d file is not an explicit target because it will need to be (re-)built
  25 # if and only if the .o needs to be rebuilt.
  26 %.o: %.cc
  27         g++ $(CFLAGS) $< -MM -MF $*.d -MP -MT $@
  28         g++ $(CFLAGS) $< -c -o $@
  29
  30 clean:
  31         rm -f odcread *.d *.o */*.o */*.d
  32
  33 # Include the generated dependency files (if they exist)
  34 -include $(SRCS:.cc=.d)