79 lines
		
	
	
	
		
			2.9 KiB
		
	
	
	
		
			Makefile
		
	
	
	
	
	
			
		
		
	
	
			79 lines
		
	
	
	
		
			2.9 KiB
		
	
	
	
		
			Makefile
		
	
	
	
	
	
programs-list :=
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# Build a program with symbolic name $(1).  The program is defined by
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# various variables prefixed by ‘$(1)_’:
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#
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# - $(1)_DIR: the directory where the (non-installed) program will be
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#   placed.
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#
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# - $(1)_SOURCES: the source files of the program.
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#
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# - $(1)_CFLAGS: additional C compiler flags.
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#
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# - $(1)_CXXFLAGS: additional C++ compiler flags.
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#
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# - $(1)_ORDER_AFTER: a set of targets on which the object files of
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#   this program will have an order-only dependency.
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#
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# - $(1)_LIBS: the symbolic names of libraries on which this program
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#   depends.
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#
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# - $(1)_LDFLAGS: additional linker flags.
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#
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# - $(1)_INSTALL_DIR: the directory where the program will be
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#   installed; defaults to $(bindir).
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define build-program
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  _d := $$($(1)_DIR)
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  _srcs := $$(sort $$(foreach src, $$($(1)_SOURCES), $$(src)))
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  $(1)_OBJS := $$(addsuffix .o, $$(basename $$(_srcs)))
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  _libs := $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_PATH))
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  $(1)_PATH := $$(_d)/$(1)
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  $$(eval $$(call create-dir, $$(_d)))
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  $$($(1)_PATH): $$($(1)_OBJS) $$(_libs) | $$(_d)/
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	$$(trace-ld) $(CXX) -o $$@ $$(GLOBAL_LDFLAGS) $$($(1)_OBJS) $$($(1)_LDFLAGS) $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_LDFLAGS_USE))
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  $(1)_INSTALL_DIR ?= $$(bindir)
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  $(1)_INSTALL_PATH := $$($(1)_INSTALL_DIR)/$(1)
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  $$(eval $$(call create-dir, $$($(1)_INSTALL_DIR)))
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  install: $(DESTDIR)$$($(1)_INSTALL_PATH)
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  ifeq ($(BUILD_SHARED_LIBS), 1)
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    _libs_final := $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_INSTALL_PATH))
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    $(DESTDIR)$$($(1)_INSTALL_PATH): $$($(1)_OBJS) $$(_libs_final) | $(DESTDIR)$$($(1)_INSTALL_DIR)/
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	$$(trace-ld) $(CXX) -o $$@ $$(GLOBAL_LDFLAGS) $$($(1)_OBJS) $$($(1)_LDFLAGS) $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_LDFLAGS_USE_INSTALLED))
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  else
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    $(DESTDIR)$$($(1)_INSTALL_PATH): $$($(1)_PATH) | $(DESTDIR)$$($(1)_INSTALL_DIR)/
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	install -t $$($(1)_INSTALL_DIR) $$<
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  endif
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  # Propagate CFLAGS and CXXFLAGS to the individual object files.
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  $$(foreach obj, $$($(1)_OBJS), $$(eval $$(obj)_CFLAGS=$$($(1)_CFLAGS)))
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  $$(foreach obj, $$($(1)_OBJS), $$(eval $$(obj)_CXXFLAGS=$$($(1)_CXXFLAGS)))
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  # Make each object file depend on the common dependencies.
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  $$(foreach obj, $$($(1)_OBJS), $$(eval $$(obj): $$($(1)_COMMON_DEPS) $$(GLOBAL_COMMON_DEPS)))
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  # Make each object file have order-only dependencies on the common
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  # order-only dependencies. This includes the order-only dependencies
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  # of libraries we're depending on.
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  $(1)_ORDER_AFTER_CLOSED = $$($(1)_ORDER_AFTER) $$(foreach lib, $$($(1)_LIBS), $$($$(lib)_ORDER_AFTER_CLOSED))
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  $$(foreach obj, $$($(1)_OBJS), $$(eval $$(obj): | $$($(1)_ORDER_AFTER_CLOSED) $$(GLOBAL_ORDER_AFTER)))
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  # Include .dep files, if they exist.
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  $(1)_DEPS := $$(foreach fn, $$($(1)_OBJS), $$(call filename-to-dep, $$(fn)))
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  -include $$($(1)_DEPS)
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  programs-list += $$($(1)_PATH)
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  clean-files += $$($(1)_PATH) $$(_d)/*.o $$(_d)/.*.dep $$($(1)_DEPS) $$($(1)_OBJS)
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  dist-files += $$(_srcs)
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endef
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