premake/src/actions/make/make_cpp.lua

--
-- make_cpp.lua
-- Generate a C/C++ project makefile.
-- Copyright (c) 2002-2009 Jason Perkins and the Premake project
--

	function premake.make_cpp(prj)
		-- create a shortcut to the compiler interface
		local cc = premake[_OPTIONS.cc]
		
		-- build a list of supported target platforms that also includes a generic build
		local platforms = premake.filterplatforms(prj.solution, cc.platforms, "Native")
		
		-- write a quick header
		_p('# %s project makefile autogenerated by Premake', premake.actions[_ACTION].shortname)

		-- set up the environment
		_p('ifndef config')
		_p('  config=%s%s', _MAKE.esc(prj.configurations[1]:lower()), cc.platforms[platforms[1]].suffix)
		_p('endif')
		_p('')
		
		_p('ifndef verbose')
		_p('  SILENT = @')
		_p('endif')
		_p('')

		-- list the configurations
		for _, platform in ipairs(platforms) do
			for cfg in premake.eachconfig(prj, platform) do
				premake.gmake_cpp_config(cfg)
			end
		end

		-- list intermediate files
		_p('OBJECTS := \\')
		for _, file in ipairs(prj.files) do
			if path.iscppfile(file) then
				_p('\t$(OBJDIR)/%s.o \\', _MAKE.esc(path.getbasename(file)))
			end
		end
		_p('')
 
		_p('RESOURCES := \\')
		for _, file in ipairs(prj.files) do
			if path.isresourcefile(file) then
				_p('\t$(OBJDIR)/%s.res \\', _MAKE.esc(path.getbasename(file)))
			end
		end
		_p('')
 
		-- set up support commands like mkdir, rmdir, etc. based on the shell
		_p('SHELLTYPE := msdos')
		_p('ifeq (,$(ComSpec)$(COMSPEC))')
		_p('  SHELLTYPE := posix')
		_p('endif')
		_p('ifeq (/bin,$(findstring /bin,$(SHELL)))')
		_p('  SHELLTYPE := posix')
		_p('endif')
		_p('ifeq (posix,$(SHELLTYPE))')
		_p('   define MKDIR_RULE')
		_p('\t@echo Creating $@')
		_p('\t$(SILENT) mkdir -p $@')
		_p('   endef')
		_p('else')
		_p('   define MKDIR_RULE')
		_p('\t@echo Creating $@')
		_p('\t$(SILENT) mkdir $(subst /,\\\\,$@)')
		_p('   endef')
		_p('endif')
		_p('')
		
		-- main build rule(s)
		_p('.PHONY: clean prebuild prelink')
		_p('')

		if os.is("MacOSX") and prj.kind == "WindowedApp" then
			_p('all: $(TARGETDIR) $(OBJDIR) prebuild $(OBJECTS) $(RESOURCES) prelink $(TARGET) $(dir $(TARGETDIR))PkgInfo $(dir $(TARGETDIR))Info.plist')
		else
			_p('all: $(TARGETDIR) $(OBJDIR) prebuild $(OBJECTS) $(RESOURCES) prelink $(TARGET)')
		end
		_p('')
		
		_p('$(TARGET): $(OBJECTS) $(LDDEPS) $(RESOURCES)')
		_p('\t@echo Linking %s', prj.name)
		_p('\t@$(LINKCMD)')
		_p('\t$(POSTBUILDCMDS)')
		_p('')
		
		-- create destination directories
		_p('$(TARGETDIR):')
		_p('\t$(MKDIR_RULE)')
		_p('')
		
		_p('$(OBJDIR):')
		_p('\t$(MKDIR_RULE)')
		_p('')

		-- Mac OS X specific targets
		if os.is("MacOSX") and prj.kind == "WindowedApp" then
			_p('$(dir $(TARGETDIR))PkgInfo:')
			_p('$(dir $(TARGETDIR))Info.plist:')
			_p('')
		end

		-- clean target
		_p('clean:')
		_p('\t@echo Cleaning %s', prj.name)
		_p('ifeq (posix,$(SHELLTYPE))')
		_p('\t$(SILENT) rm -f  $(TARGET)')
		_p('\t$(SILENT) rm -rf $(OBJDIR)')
		_p('else')
		_p('\t$(SILENT) if exist $(subst /,\\\\,$(TARGET)) del $(subst /,\\\\,$(TARGET))')
		_p('\t$(SILENT) if exist $(subst /,\\\\,$(OBJDIR)) rmdir /s /q $(subst /,\\\\,$(OBJDIR))')
		_p('endif')
		_p('')

		-- custom build step targets
		_p('prebuild:')
		_p('\t$(PREBUILDCMDS)')
		_p('')
		
		_p('prelink:')
		_p('\t$(PRELINKCMDS)')
		_p('')
		
		-- per-file rules
		for _, file in ipairs(prj.files) do
			if path.iscppfile(file) then
				_p('$(OBJDIR)/%s.o: %s', _MAKE.esc(path.getbasename(file)), _MAKE.esc(file))
				_p('\t@echo $(notdir $<)')
				if (path.iscfile(file)) then
					_p('\t$(SILENT) $(CC) $(CFLAGS) -o $@ -c $<')
				else
					_p('\t$(SILENT) $(CXX) $(CXXFLAGS) -o $@ -c $<')
				end
			elseif (path.getextension(file) == ".rc") then
				_p('$(OBJDIR)/%s.res: %s', _MAKE.esc(path.getbasename(file)), _MAKE.esc(file))
				_p('\t@echo $(notdir $<)')
				_p('\t$(SILENT) windres $< -O coff -o $@ $(RESFLAGS)')
			end
		end
		_p('')
		
		-- include the dependencies, built by GCC (with the -MMD flag)
		_p('-include $(OBJECTS:%%.o=%%.d)')
	end


--
-- Write a block of configuration settings.
--

	function premake.gmake_cpp_config(cfg)
		local cc = premake[_OPTIONS.cc]
		local platform = cc.platforms[cfg.platform or "Native"].suffix

		_p('ifeq ($(config),%s%s)', _MAKE.esc(cfg.name:lower()), platform)
		_p('  TARGETDIR  = %s', _MAKE.esc(cfg.buildtarget.directory))
		_p('  TARGET     = $(TARGETDIR)/%s', _MAKE.esc(cfg.buildtarget.name))
		_p('  OBJDIR     = %s', _MAKE.esc(cfg.objectsdir))
		_p('  DEFINES   += %s', table.concat(cc.getdefines(cfg.defines), " "))
		_p('  INCLUDES  += %s', table.concat(cc.getincludedirs(cfg.includedirs), " "))
		_p('  CPPFLAGS  += %s $(DEFINES) $(INCLUDES)', cc.getcppflags(cfg))
		_p('  CFLAGS    += $(CPPFLAGS) $(ARCH) %s', table.concat(table.join(cc.getcflags(cfg), cfg.buildoptions), " "))
		_p('  CXXFLAGS  += $(CFLAGS) %s', table.concat(cc.getcxxflags(cfg), " "))
		_p('  LDFLAGS   += %s', table.concat(table.join(cc.getldflags(cfg), cc.getlinkflags(cfg), cfg.linkoptions), " "))
		_p('  RESFLAGS  += $(DEFINES) $(INCLUDES) %s', table.concat(table.join(cc.getdefines(cfg.resdefines), cc.getincludedirs(cfg.resincludedirs), cfg.resoptions), " "))
		_p('  LDDEPS    += %s', table.concat(_MAKE.esc(premake.getlinks(cfg, "siblings", "fullpath")), " "))
		
		if cfg.kind == "StaticLib" then
			_p('  LINKCMD    = ar -rcs $(TARGET) $(OBJECTS)')
		else
			_p('  LINKCMD    = $(%s) -o $(TARGET) $(OBJECTS) $(LDFLAGS) $(RESOURCES) $(ARCH)', iif(cfg.language == "C", "CC", "CXX"))
		end
		
		_p('  define PREBUILDCMDS')
		if #cfg.prebuildcommands > 0 then
			_p('\t@echo Running pre-build commands')
			_p('\t%s', table.implode(cfg.prebuildcommands, "", "", "\n\t"))
		end
		_p('  endef')

		_p('  define PRELINKCMDS')
		if #cfg.prelinkcommands > 0 then
			_p('\t@echo Running pre-link commands')
			_p('\t%s', table.implode(cfg.prelinkcommands, "", "", "\n\t"))
		end
		_p('  endef')

		_p('  define POSTBUILDCMDS')
		if #cfg.postbuildcommands > 0 then
			_p('\t@echo Running post-build commands')
			_p('\t%s', table.implode(cfg.postbuildcommands, "", "", "\n\t"))
		end
		_p('  endef')
		
		_p('endif')
		_p('')
	end