############################################################## Generic Makefile for C/C++ Program## License: GPL (General Public License)# Author:  whyglinux <whyglinux AT gmail DOT com># Date:    2006/03/04 (version 0.1)#          2007/03/24 (version 0.2)#          2007/04/09 (version 0.3)#          2007/06/26 (version 0.4)#          2008/04/05 (version 0.5)## Description:# ------------# This is an easily customizable makefile template. The purpose is to# provide an instant building environment for C/C++ programs.## It searches all the C/C++ source files in the specified directories,# makes dependencies, compiles and links to form an executable.## Besides its default ability to build C/C++ programs which use only# standard C/C++ libraries, you can customize the Makefile to build# those using other libraries. Once done, without any changes you can# then build programs using the same or less libraries, even if source# files are renamed, added or removed. Therefore, it is particularly# convenient to use it to build codes for experimental or study use.## GNU make is expected to use the Makefile. Other versions of makes# may or may not work.## Usage:# ------# 1. Copy the Makefile to your program directory.# 2. Customize in the "Customizable Section" only if necessary:#    * to use non-standard C/C++ libraries, set pre-processor or compiler#      options to <MY_CFLAGS> and linker ones to <MY_LIBS>#      (See Makefile.gtk+-2.0 for an example)#    * to search sources in more directories, set to <SRCDIRS>#    * to specify your favorite program name, set to <PROGRAM># 3. Type make to start building your program.## Make Target:# ------------# The Makefile provides the following targets to make:#   $ make           compile and link#   $ make NODEP=yes compile and link without generating dependencies#   $ make objs      compile only (no linking)#   $ make tags      create tags for Emacs editor#   $ make ctags     create ctags for VI editor#   $ make clean     clean objects and the executable file#   $ make distclean clean objects, the executable and dependencies#   $ make help      get the usage of the makefile##===========================================================================## Customizable Section: adapt those variables to suit your program.##==========================================================================# The pre-processor and compiler options.MY_CFLAGS = -I/home/anker/project/myssl/include# The linker options.MY_LIBS   = -L/home/anker/project/myssl/lib -lssl -lcrypto# The pre-processor options used by the cpp (man cpp for more).CPPFLAGS  = -Wall# The options used in linking as well as in any direct use of ld.LDFLAGS   =# The directories in which source files reside.# If not specified, only the current directory will be serached.SRCDIRS   =# The executable file name.# If not specified, current directory name or `a.out‘ will be used.PROGRAM   =client## Implicit Section: change the following only when necessary.##==========================================================================# The source file types (headers excluded).# .c indicates C source files, and others C++ ones.SRCEXTS = .c .C .cc .cpp .CPP .c++ .cxx .cp# The header file types.HDREXTS = .h .H .hh .hpp .HPP .h++ .hxx .hp# The pre-processor and compiler options.# Users can override those variables from the command line.CFLAGS  = -g -O2CXXFLAGS= -g -O2# The C program compiler.#CC     = gcc# The C++ program compiler.#CXX    = g++# Un-comment the following line to compile C programs as C++ ones.#CC     = $(CXX)# The command used to delete file.#RM     = rm -fETAGS = etagsETAGSFLAGS =CTAGS = ctagsCTAGSFLAGS =## Stable Section: usually no need to be changed. But you can add more.##==========================================================================SHELL   = /bin/shEMPTY   =SPACE   = $(EMPTY) $(EMPTY)ifeq ($(PROGRAM),)  CUR_PATH_NAMES = $(subst /,$(SPACE),$(subst $(SPACE),_,$(CURDIR)))  PROGRAM = $(word $(words $(CUR_PATH_NAMES)),$(CUR_PATH_NAMES))  ifeq ($(PROGRAM),)    PROGRAM = a.out  endifendififeq ($(SRCDIRS),)  SRCDIRS = .endifSOURCES = $(foreach d,$(SRCDIRS),$(wildcard $(addprefix $(d)/*,$(SRCEXTS))))HEADERS = $(foreach d,$(SRCDIRS),$(wildcard $(addprefix $(d)/*,$(HDREXTS))))SRC_CXX = $(filter-out %.c,$(SOURCES))OBJS    = $(addsuffix .o, $(basename $(SOURCES)))DEPS    = $(OBJS:.o=.d)## Define some useful variables.DEP_OPT = $(shell if `$(CC) --version | grep "GCC" >/dev/null`; then                   echo "-MM -MP"; else echo "-M"; fi )DEPEND      = $(CC)  $(DEP_OPT)  $(MY_CFLAGS) $(CFLAGS) $(CPPFLAGS)DEPEND.d    = $(subst -g ,,$(DEPEND))COMPILE.c   = $(CC)  $(MY_CFLAGS) $(CFLAGS)   $(CPPFLAGS) -cCOMPILE.cxx = $(CXX) $(MY_CFLAGS) $(CXXFLAGS) $(CPPFLAGS) -cLINK.c      = $(CC)  $(MY_CFLAGS) $(CFLAGS)   $(CPPFLAGS) $(LDFLAGS)LINK.cxx    = $(CXX) $(MY_CFLAGS) $(CXXFLAGS) $(CPPFLAGS) $(LDFLAGS).PHONY: all objs tags ctags clean distclean help show# Delete the default suffixes.SUFFIXES:all: $(PROGRAM)# Rules for creating dependency files (.d).#------------------------------------------%.d:%.c	@echo -n $(dir $<) > $@	@$(DEPEND.d) $< >> $@%.d:%.C	@echo -n $(dir $<) > $@	@$(DEPEND.d) $< >> $@%.d:%.cc	@echo -n $(dir $<) > $@	@$(DEPEND.d) $< >> $@%.d:%.cpp	@echo -n $(dir $<) > $@	@$(DEPEND.d) $< >> $@%.d:%.CPP	@echo -n $(dir $<) > $@	@$(DEPEND.d) $< >> $@%.d:%.c++	@echo -n $(dir $<) > $@	@$(DEPEND.d) $< >> $@%.d:%.cp	@echo -n $(dir $<) > $@	@$(DEPEND.d) $< >> $@%.d:%.cxx	@echo -n $(dir $<) > $@	@$(DEPEND.d) $< >> $@# Rules for generating object files (.o).#----------------------------------------objs:$(OBJS)%.o:%.c	$(COMPILE.c) $< -o $@%.o:%.C	$(COMPILE.cxx) $< -o $@%.o:%.cc	$(COMPILE.cxx) $< -o $@%.o:%.cpp	$(COMPILE.cxx) $< -o $@%.o:%.CPP	$(COMPILE.cxx) $< -o $@%.o:%.c++	$(COMPILE.cxx) $< -o $@%.o:%.cp	$(COMPILE.cxx) $< -o $@%.o:%.cxx	$(COMPILE.cxx) $< -o $@# Rules for generating the tags.#-------------------------------------tags: $(HEADERS) $(SOURCES)	$(ETAGS) $(ETAGSFLAGS) $(HEADERS) $(SOURCES)ctags: $(HEADERS) $(SOURCES)	$(CTAGS) $(CTAGSFLAGS) $(HEADERS) $(SOURCES)# Rules for generating the executable.#-------------------------------------$(PROGRAM):$(OBJS)ifeq ($(SRC_CXX),)              # C program	$(LINK.c)   $(OBJS) $(MY_LIBS) -o $@	@echo Type ./$@ to execute the program.else                            # C++ program	$(LINK.cxx) $(OBJS) $(MY_LIBS) -o $@	@echo Type ./$@ to execute the program.endififndef NODEPifneq ($(DEPS),)  sinclude $(DEPS)endifendifclean:	$(RM) $(OBJS) $(PROGRAM) $(PROGRAM).exedistclean: clean	$(RM) $(DEPS) TAGS# Show help.help:	@echo ‘Generic Makefile for C/C++ Programs (gcmakefile) version 0.5‘	@echo ‘Copyright (C) 2007, 2008 whyglinux <whyglinux@hotmail.com>‘	@echo	@echo ‘Usage: make [TARGET]‘	@echo ‘TARGETS:‘	@echo ‘  all       (=make) compile and link.‘	@echo ‘  NODEP=yes make without generating dependencies.‘	@echo ‘  objs      compile only (no linking).‘	@echo ‘  tags      create tags for Emacs editor.‘	@echo ‘  ctags     create ctags for VI editor.‘	@echo ‘  clean     clean objects and the executable file.‘	@echo ‘  distclean clean objects, the executable and dependencies.‘	@echo ‘  show      show variables (for debug use only).‘	@echo ‘  help      print this message.‘	@echo	@echo ‘Report bugs to <whyglinux AT gmail DOT com>.‘# Show variables (for debug use only.)show:	@echo ‘PROGRAM     :‘ $(PROGRAM)	@echo ‘SRCDIRS     :‘ $(SRCDIRS)	@echo ‘HEADERS     :‘ $(HEADERS)	@echo ‘SOURCES     :‘ $(SOURCES)	@echo ‘SRC_CXX     :‘ $(SRC_CXX)	@echo ‘OBJS        :‘ $(OBJS)	@echo ‘DEPS        :‘ $(DEPS)	@echo ‘DEPEND      :‘ $(DEPEND)	@echo ‘COMPILE.c   :‘ $(COMPILE.c)	@echo ‘COMPILE.cxx :‘ $(COMPILE.cxx)	@echo ‘link.c      :‘ $(LINK.c)	@echo ‘link.cxx    :‘ $(LINK.cxx)## End of the Makefile ##  Suggestions are welcome  ## All rights reserved ################################################################